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authorLinus Torvalds <torvalds@linux-foundation.org>2017-03-03 11:38:56 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-03-03 11:38:56 -0800
commit590dce2d4934fb909b112cd80c80486362337744 (patch)
tree9c46dfa627c0adb639ee1542fffbc2262727ef36
parente0d072250a54669dce876d8ade70e417356aae74 (diff)
parenta528d35e8bfcc521d7cb70aaf03e1bd296c8493f (diff)
downloadlinux-stericsson-590dce2d4934fb909b112cd80c80486362337744.tar.gz
Merge branch 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs 'statx()' update from Al Viro. This adds the new extended stat() interface that internally subsumes our previous stat interfaces, and allows user mode to specify in more detail what kind of information it wants. It also allows for some explicit synchronization information to be passed to the filesystem, which can be relevant for network filesystems: is the cached value ok, or do you need open/close consistency, or what? From David Howells. Andreas Dilger points out that the first version of the extended statx interface was posted June 29, 2010: https://www.spinics.net/lists/linux-fsdevel/msg33831.html * 'rebased-statx' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: statx: Add a system call to make enhanced file info available
-rw-r--r--Documentation/filesystems/Locking3
-rw-r--r--Documentation/filesystems/vfs.txt3
-rw-r--r--arch/x86/entry/syscalls/syscall_32.tbl1
-rw-r--r--arch/x86/entry/syscalls/syscall_64.tbl1
-rw-r--r--drivers/base/devtmpfs.c3
-rw-r--r--drivers/block/loop.c3
-rw-r--r--drivers/mtd/ubi/build.c2
-rw-r--r--drivers/mtd/ubi/kapi.c2
-rw-r--r--drivers/staging/lustre/lustre/llite/file.c9
-rw-r--r--drivers/staging/lustre/lustre/llite/llite_internal.h3
-rw-r--r--fs/9p/vfs_inode.c10
-rw-r--r--fs/9p/vfs_inode_dotl.c5
-rw-r--r--fs/afs/inode.c8
-rw-r--r--fs/afs/internal.h2
-rw-r--r--fs/bad_inode.c4
-rw-r--r--fs/btrfs/inode.c6
-rw-r--r--fs/ceph/inode.c6
-rw-r--r--fs/ceph/super.h4
-rw-r--r--fs/cifs/cifsfs.h2
-rw-r--r--fs/cifs/inode.c5
-rw-r--r--fs/coda/coda_linux.h2
-rw-r--r--fs/coda/inode.c7
-rw-r--r--fs/ecryptfs/inode.c13
-rw-r--r--fs/exportfs/expfs.c3
-rw-r--r--fs/ext4/ext4.h3
-rw-r--r--fs/ext4/inode.c6
-rw-r--r--fs/f2fs/f2fs.h4
-rw-r--r--fs/f2fs/file.c6
-rw-r--r--fs/fat/fat.h4
-rw-r--r--fs/fat/file.c5
-rw-r--r--fs/fuse/dir.c6
-rw-r--r--fs/gfs2/inode.c11
-rw-r--r--fs/kernfs/inode.c8
-rw-r--r--fs/kernfs/kernfs-internal.h4
-rw-r--r--fs/libfs.c12
-rw-r--r--fs/minix/inode.c11
-rw-r--r--fs/minix/minix.h2
-rw-r--r--fs/nfs/inode.c13
-rw-r--r--fs/nfs/namespace.c9
-rw-r--r--fs/nfsd/nfs4xdr.c4
-rw-r--r--fs/nfsd/vfs.h3
-rw-r--r--fs/ocfs2/file.c11
-rw-r--r--fs/ocfs2/file.h4
-rw-r--r--fs/orangefs/inode.c13
-rw-r--r--fs/orangefs/orangefs-kernel.h5
-rw-r--r--fs/overlayfs/copy_up.c6
-rw-r--r--fs/overlayfs/dir.c10
-rw-r--r--fs/overlayfs/inode.c7
-rw-r--r--fs/proc/base.c12
-rw-r--r--fs/proc/generic.c6
-rw-r--r--fs/proc/internal.h2
-rw-r--r--fs/proc/proc_net.c6
-rw-r--r--fs/proc/proc_sysctl.c5
-rw-r--r--fs/proc/root.c6
-rw-r--r--fs/stat.c214
-rw-r--r--fs/sysv/itree.c7
-rw-r--r--fs/sysv/sysv.h2
-rw-r--r--fs/ubifs/dir.c6
-rw-r--r--fs/ubifs/ubifs.h4
-rw-r--r--fs/udf/symlink.c5
-rw-r--r--fs/xfs/xfs_iops.c9
-rw-r--r--include/linux/fs.h35
-rw-r--r--include/linux/nfs_fs.h2
-rw-r--r--include/linux/stat.h24
-rw-r--r--include/linux/syscalls.h3
-rw-r--r--include/uapi/linux/fcntl.h5
-rw-r--r--include/uapi/linux/stat.h131
-rw-r--r--mm/shmem.c6
-rw-r--r--samples/Kconfig6
-rw-r--r--samples/Makefile2
-rw-r--r--samples/statx/Makefile10
-rw-r--r--samples/statx/test-statx.c254
72 files changed, 822 insertions, 214 deletions
diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking
index ace63cd7af8c..fdcfdd79682a 100644
--- a/Documentation/filesystems/Locking
+++ b/Documentation/filesystems/Locking
@@ -58,7 +58,8 @@ prototypes:
int (*permission) (struct inode *, int, unsigned int);
int (*get_acl)(struct inode *, int);
int (*setattr) (struct dentry *, struct iattr *);
- int (*getattr) (struct vfsmount *, struct dentry *, struct kstat *);
+ int (*getattr) (const struct path *, struct dentry *, struct kstat *,
+ u32, unsigned int);
ssize_t (*listxattr) (struct dentry *, char *, size_t);
int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, u64 len);
void (*update_time)(struct inode *, struct timespec *, int);
diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt
index b968084eeac1..569211703721 100644
--- a/Documentation/filesystems/vfs.txt
+++ b/Documentation/filesystems/vfs.txt
@@ -382,7 +382,8 @@ struct inode_operations {
int (*permission) (struct inode *, int);
int (*get_acl)(struct inode *, int);
int (*setattr) (struct dentry *, struct iattr *);
- int (*getattr) (struct vfsmount *mnt, struct dentry *, struct kstat *);
+ int (*getattr) (const struct path *, struct dentry *, struct kstat *,
+ u32, unsigned int);
ssize_t (*listxattr) (struct dentry *, char *, size_t);
void (*update_time)(struct inode *, struct timespec *, int);
int (*atomic_open)(struct inode *, struct dentry *, struct file *,
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl
index 2b3618542544..9ba050fe47f3 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -389,3 +389,4 @@
380 i386 pkey_mprotect sys_pkey_mprotect
381 i386 pkey_alloc sys_pkey_alloc
382 i386 pkey_free sys_pkey_free
+383 i386 statx sys_statx
diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl
index e93ef0b38db8..5aef183e2f85 100644
--- a/arch/x86/entry/syscalls/syscall_64.tbl
+++ b/arch/x86/entry/syscalls/syscall_64.tbl
@@ -338,6 +338,7 @@
329 common pkey_mprotect sys_pkey_mprotect
330 common pkey_alloc sys_pkey_alloc
331 common pkey_free sys_pkey_free
+332 common statx sys_statx
#
# x32-specific system call numbers start at 512 to avoid cache impact
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 44a74cf1372c..d2fb9c8ed205 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -309,7 +309,8 @@ static int handle_remove(const char *nodename, struct device *dev)
if (d_really_is_positive(dentry)) {
struct kstat stat;
struct path p = {.mnt = parent.mnt, .dentry = dentry};
- err = vfs_getattr(&p, &stat);
+ err = vfs_getattr(&p, &stat, STATX_TYPE | STATX_MODE,
+ AT_STATX_SYNC_AS_STAT);
if (!err && dev_mynode(dev, d_inode(dentry), &stat)) {
struct iattr newattrs;
/*
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 0712365f2729..0ecb6461ed81 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1176,7 +1176,8 @@ loop_get_status(struct loop_device *lo, struct loop_info64 *info)
if (lo->lo_state != Lo_bound)
return -ENXIO;
- error = vfs_getattr(&file->f_path, &stat);
+ error = vfs_getattr(&file->f_path, &stat,
+ STATX_INO, AT_STATX_SYNC_AS_STAT);
if (error)
return error;
memset(info, 0, sizeof(*info));
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index 85d54f37e28f..77513195f50e 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -1159,7 +1159,7 @@ static struct mtd_info * __init open_mtd_by_chdev(const char *mtd_dev)
if (err)
return ERR_PTR(err);
- err = vfs_getattr(&path, &stat);
+ err = vfs_getattr(&path, &stat, STATX_TYPE, AT_STATX_SYNC_AS_STAT);
path_put(&path);
if (err)
return ERR_PTR(err);
diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c
index 88b1897aeb40..d4b2e8744498 100644
--- a/drivers/mtd/ubi/kapi.c
+++ b/drivers/mtd/ubi/kapi.c
@@ -314,7 +314,7 @@ struct ubi_volume_desc *ubi_open_volume_path(const char *pathname, int mode)
if (error)
return ERR_PTR(error);
- error = vfs_getattr(&path, &stat);
+ error = vfs_getattr(&path, &stat, STATX_TYPE, AT_STATX_SYNC_AS_STAT);
path_put(&path);
if (error)
return ERR_PTR(error);
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index 10adfcdd7035..481c0d01d4c6 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -2952,15 +2952,16 @@ static int ll_inode_revalidate(struct dentry *dentry, __u64 ibits)
return rc;
}
-int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat)
+int ll_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
- struct inode *inode = d_inode(de);
+ struct inode *inode = d_inode(path->dentry);
struct ll_sb_info *sbi = ll_i2sbi(inode);
struct ll_inode_info *lli = ll_i2info(inode);
int res;
- res = ll_inode_revalidate(de, MDS_INODELOCK_UPDATE |
- MDS_INODELOCK_LOOKUP);
+ res = ll_inode_revalidate(path->dentry,
+ MDS_INODELOCK_UPDATE | MDS_INODELOCK_LOOKUP);
ll_stats_ops_tally(sbi, LPROC_LL_GETATTR, 1);
if (res)
diff --git a/drivers/staging/lustre/lustre/llite/llite_internal.h b/drivers/staging/lustre/lustre/llite/llite_internal.h
index ecdfd0c29b7f..55f68acd85d1 100644
--- a/drivers/staging/lustre/lustre/llite/llite_internal.h
+++ b/drivers/staging/lustre/lustre/llite/llite_internal.h
@@ -750,7 +750,8 @@ int ll_file_open(struct inode *inode, struct file *file);
int ll_file_release(struct inode *inode, struct file *file);
int ll_release_openhandle(struct inode *, struct lookup_intent *);
int ll_md_real_close(struct inode *inode, fmode_t fmode);
-int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat);
+int ll_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags);
struct posix_acl *ll_get_acl(struct inode *inode, int type);
int ll_migrate(struct inode *parent, struct file *file, int mdtidx,
const char *name, int namelen);
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index f4f4450119e4..f1d96233670c 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -1047,16 +1047,18 @@ done:
/**
* v9fs_vfs_getattr - retrieve file metadata
- * @mnt: mount information
- * @dentry: file to get attributes on
+ * @path: Object to query
* @stat: metadata structure to populate
+ * @request_mask: Mask of STATX_xxx flags indicating the caller's interests
+ * @flags: AT_STATX_xxx setting
*
*/
static int
-v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+v9fs_vfs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
+ struct dentry *dentry = path->dentry;
struct v9fs_session_info *v9ses;
struct p9_fid *fid;
struct p9_wstat *st;
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 5999bd050678..570e63ee5b71 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -468,9 +468,10 @@ error:
}
static int
-v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+v9fs_vfs_getattr_dotl(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
+ struct dentry *dentry = path->dentry;
struct v9fs_session_info *v9ses;
struct p9_fid *fid;
struct p9_stat_dotl *st;
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 86cc7264c21c..1e4897a048d2 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -375,12 +375,10 @@ error_unlock:
/*
* read the attributes of an inode
*/
-int afs_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+int afs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- struct inode *inode;
-
- inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
_enter("{ ino=%lu v=%u }", inode->i_ino, inode->i_generation);
diff --git a/fs/afs/internal.h b/fs/afs/internal.h
index 8acf3670e756..5dfa56903a2d 100644
--- a/fs/afs/internal.h
+++ b/fs/afs/internal.h
@@ -533,7 +533,7 @@ extern struct inode *afs_iget(struct super_block *, struct key *,
struct afs_callback *);
extern void afs_zap_data(struct afs_vnode *);
extern int afs_validate(struct afs_vnode *, struct key *);
-extern int afs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
+extern int afs_getattr(const struct path *, struct kstat *, u32, unsigned int);
extern int afs_setattr(struct dentry *, struct iattr *);
extern void afs_evict_inode(struct inode *);
extern int afs_drop_inode(struct inode *);
diff --git a/fs/bad_inode.c b/fs/bad_inode.c
index 5f685c819298..bb53728c7a31 100644
--- a/fs/bad_inode.c
+++ b/fs/bad_inode.c
@@ -89,8 +89,8 @@ static int bad_inode_permission(struct inode *inode, int mask)
return -EIO;
}
-static int bad_inode_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+static int bad_inode_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
return -EIO;
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index ee6978d80491..c40060cc481f 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -9413,11 +9413,11 @@ fail:
return -ENOMEM;
}
-static int btrfs_getattr(struct vfsmount *mnt,
- struct dentry *dentry, struct kstat *stat)
+static int btrfs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
u64 delalloc_bytes;
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
u32 blocksize = inode->i_sb->s_blocksize;
generic_fillattr(inode, stat);
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index fd8f771f99b7..d449e1c03cbd 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -2187,10 +2187,10 @@ int ceph_permission(struct inode *inode, int mask)
* Get all attributes. Hopefully somedata we'll have a statlite()
* and can limit the fields we require to be accurate.
*/
-int ceph_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+int ceph_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
struct ceph_inode_info *ci = ceph_inode(inode);
int err;
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index e9410bcf4113..fe6b9cfc4013 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -784,8 +784,8 @@ static inline int ceph_do_getattr(struct inode *inode, int mask, bool force)
extern int ceph_permission(struct inode *inode, int mask);
extern int __ceph_setattr(struct inode *inode, struct iattr *attr);
extern int ceph_setattr(struct dentry *dentry, struct iattr *attr);
-extern int ceph_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat);
+extern int ceph_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags);
/* xattr.c */
int __ceph_setxattr(struct inode *, const char *, const void *, size_t, int);
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index c9c00a862036..da717fee3026 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -83,7 +83,7 @@ extern int cifs_revalidate_dentry(struct dentry *);
extern int cifs_invalidate_mapping(struct inode *inode);
extern int cifs_revalidate_mapping(struct inode *inode);
extern int cifs_zap_mapping(struct inode *inode);
-extern int cifs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
+extern int cifs_getattr(const struct path *, struct kstat *, u32, unsigned int);
extern int cifs_setattr(struct dentry *, struct iattr *);
extern const struct inode_operations cifs_file_inode_ops;
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 1858fc20eb7d..b261db34103c 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -1992,9 +1992,10 @@ int cifs_revalidate_dentry(struct dentry *dentry)
return cifs_revalidate_mapping(inode);
}
-int cifs_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+int cifs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
+ struct dentry *dentry = path->dentry;
struct cifs_sb_info *cifs_sb = CIFS_SB(dentry->d_sb);
struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
struct inode *inode = d_inode(dentry);
diff --git a/fs/coda/coda_linux.h b/fs/coda/coda_linux.h
index 5104d84c4f64..d3c361883c28 100644
--- a/fs/coda/coda_linux.h
+++ b/fs/coda/coda_linux.h
@@ -47,7 +47,7 @@ int coda_open(struct inode *i, struct file *f);
int coda_release(struct inode *i, struct file *f);
int coda_permission(struct inode *inode, int mask);
int coda_revalidate_inode(struct inode *);
-int coda_getattr(struct vfsmount *, struct dentry *, struct kstat *);
+int coda_getattr(const struct path *, struct kstat *, u32, unsigned int);
int coda_setattr(struct dentry *, struct iattr *);
/* this file: heloers */
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index 71dbe7e287ce..2dea594da199 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -255,11 +255,12 @@ static void coda_evict_inode(struct inode *inode)
coda_cache_clear_inode(inode);
}
-int coda_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+int coda_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
- int err = coda_revalidate_inode(d_inode(dentry));
+ int err = coda_revalidate_inode(d_inode(path->dentry));
if (!err)
- generic_fillattr(d_inode(dentry), stat);
+ generic_fillattr(d_inode(path->dentry), stat);
return err;
}
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index e7413f82d27b..efc2db42d175 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -959,9 +959,10 @@ out:
return rc;
}
-static int ecryptfs_getattr_link(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+static int ecryptfs_getattr_link(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
+ struct dentry *dentry = path->dentry;
struct ecryptfs_mount_crypt_stat *mount_crypt_stat;
int rc = 0;
@@ -983,13 +984,15 @@ static int ecryptfs_getattr_link(struct vfsmount *mnt, struct dentry *dentry,
return rc;
}
-static int ecryptfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+static int ecryptfs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
+ struct dentry *dentry = path->dentry;
struct kstat lower_stat;
int rc;
- rc = vfs_getattr(ecryptfs_dentry_to_lower_path(dentry), &lower_stat);
+ rc = vfs_getattr(ecryptfs_dentry_to_lower_path(dentry), &lower_stat,
+ request_mask, flags);
if (!rc) {
fsstack_copy_attr_all(d_inode(dentry),
ecryptfs_inode_to_lower(d_inode(dentry)));
diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index 9ec1038f937e..329a5d103846 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -300,7 +300,8 @@ static int get_name(const struct path *path, char *name, struct dentry *child)
* filesystem supports 64-bit inode numbers. So we need to
* actually call ->getattr, not just read i_ino:
*/
- error = vfs_getattr_nosec(&child_path, &stat);
+ error = vfs_getattr_nosec(&child_path, &stat,
+ STATX_INO, AT_STATX_SYNC_AS_STAT);
if (error)
return error;
buffer.ino = stat.ino;
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 77798a46b0c6..f493af666591 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2463,8 +2463,7 @@ extern struct inode *ext4_iget(struct super_block *, unsigned long);
extern struct inode *ext4_iget_normal(struct super_block *, unsigned long);
extern int ext4_write_inode(struct inode *, struct writeback_control *);
extern int ext4_setattr(struct dentry *, struct iattr *);
-extern int ext4_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat);
+extern int ext4_getattr(const struct path *, struct kstat *, u32, unsigned int);
extern void ext4_evict_inode(struct inode *);
extern void ext4_clear_inode(struct inode *);
extern int ext4_sync_inode(handle_t *, struct inode *);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 971f66342080..7385e6a6b6cb 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -5387,13 +5387,13 @@ err_out:
return error;
}
-int ext4_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+int ext4_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
struct inode *inode;
unsigned long long delalloc_blocks;
- inode = d_inode(dentry);
+ inode = d_inode(path->dentry);
generic_fillattr(inode, stat);
/*
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index d1483136fed6..e849f83d6114 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -2040,8 +2040,8 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
void truncate_data_blocks(struct dnode_of_data *dn);
int truncate_blocks(struct inode *inode, u64 from, bool lock);
int f2fs_truncate(struct inode *inode);
-int f2fs_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat);
+int f2fs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags);
int f2fs_setattr(struct dentry *dentry, struct iattr *attr);
int truncate_hole(struct inode *inode, pgoff_t pg_start, pgoff_t pg_end);
int truncate_data_blocks_range(struct dnode_of_data *dn, int count);
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 78e65288f2b2..5f7317875a67 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -633,10 +633,10 @@ int f2fs_truncate(struct inode *inode)
return 0;
}
-int f2fs_getattr(struct vfsmount *mnt,
- struct dentry *dentry, struct kstat *stat)
+int f2fs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
generic_fillattr(inode, stat);
stat->blocks <<= 3;
return 0;
diff --git a/fs/fat/fat.h b/fs/fat/fat.h
index e6b764a17a9c..051dac1ce3be 100644
--- a/fs/fat/fat.h
+++ b/fs/fat/fat.h
@@ -364,8 +364,8 @@ extern const struct file_operations fat_file_operations;
extern const struct inode_operations fat_file_inode_operations;
extern int fat_setattr(struct dentry *dentry, struct iattr *attr);
extern void fat_truncate_blocks(struct inode *inode, loff_t offset);
-extern int fat_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat);
+extern int fat_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags);
extern int fat_file_fsync(struct file *file, loff_t start, loff_t end,
int datasync);
diff --git a/fs/fat/file.c b/fs/fat/file.c
index 3d04b124bce0..4724cc9ad650 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -365,9 +365,10 @@ void fat_truncate_blocks(struct inode *inode, loff_t offset)
fat_flush_inodes(inode->i_sb, inode, NULL);
}
-int fat_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+int fat_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
generic_fillattr(inode, stat);
stat->blksize = MSDOS_SB(inode->i_sb)->cluster_size;
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 811fd8929a18..beb3d64f16e2 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -1777,10 +1777,10 @@ static int fuse_setattr(struct dentry *entry, struct iattr *attr)
return ret;
}
-static int fuse_getattr(struct vfsmount *mnt, struct dentry *entry,
- struct kstat *stat)
+static int fuse_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
- struct inode *inode = d_inode(entry);
+ struct inode *inode = d_inode(path->dentry);
struct fuse_conn *fc = get_fuse_conn(inode);
if (!fuse_allow_current_process(fc))
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 9d28f55fbd1d..e279c3ce27be 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1960,9 +1960,10 @@ out:
/**
* gfs2_getattr - Read out an inode's attributes
- * @mnt: The vfsmount the inode is being accessed from
- * @dentry: The dentry to stat
+ * @path: Object to query
* @stat: The inode's stats
+ * @request_mask: Mask of STATX_xxx flags indicating the caller's interests
+ * @flags: AT_STATX_xxx setting
*
* This may be called from the VFS directly, or from within GFS2 with the
* inode locked, so we look to see if the glock is already locked and only
@@ -1973,10 +1974,10 @@ out:
* Returns: errno
*/
-static int gfs2_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+static int gfs2_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_holder gh;
int error;
diff --git a/fs/kernfs/inode.c b/fs/kernfs/inode.c
index ac9e108ce1ea..fb4b4a79a0d6 100644
--- a/fs/kernfs/inode.c
+++ b/fs/kernfs/inode.c
@@ -200,11 +200,11 @@ static void kernfs_refresh_inode(struct kernfs_node *kn, struct inode *inode)
set_nlink(inode, kn->dir.subdirs + 2);
}
-int kernfs_iop_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+int kernfs_iop_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- struct kernfs_node *kn = dentry->d_fsdata;
- struct inode *inode = d_inode(dentry);
+ struct kernfs_node *kn = path->dentry->d_fsdata;
+ struct inode *inode = d_inode(path->dentry);
mutex_lock(&kernfs_mutex);
kernfs_refresh_inode(kn, inode);
diff --git a/fs/kernfs/kernfs-internal.h b/fs/kernfs/kernfs-internal.h
index 3100987cf8ba..2d5144ab4251 100644
--- a/fs/kernfs/kernfs-internal.h
+++ b/fs/kernfs/kernfs-internal.h
@@ -80,8 +80,8 @@ extern const struct xattr_handler *kernfs_xattr_handlers[];
void kernfs_evict_inode(struct inode *inode);
int kernfs_iop_permission(struct inode *inode, int mask);
int kernfs_iop_setattr(struct dentry *dentry, struct iattr *iattr);
-int kernfs_iop_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat);
+int kernfs_iop_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags);
ssize_t kernfs_iop_listxattr(struct dentry *dentry, char *buf, size_t size);
/*
diff --git a/fs/libfs.c b/fs/libfs.c
index 217896ca4fae..a8b62e5d43a9 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -21,10 +21,10 @@
#include "internal.h"
-int simple_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+int simple_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
generic_fillattr(inode, stat);
stat->blocks = inode->i_mapping->nrpages << (PAGE_SHIFT - 9);
return 0;
@@ -1144,10 +1144,10 @@ static struct dentry *empty_dir_lookup(struct inode *dir, struct dentry *dentry,
return ERR_PTR(-ENOENT);
}
-static int empty_dir_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+static int empty_dir_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
generic_fillattr(inode, stat);
return 0;
}
diff --git a/fs/minix/inode.c b/fs/minix/inode.c
index e7d9bf86d975..6ac76b0434e9 100644
--- a/fs/minix/inode.c
+++ b/fs/minix/inode.c
@@ -622,11 +622,14 @@ static int minix_write_inode(struct inode *inode, struct writeback_control *wbc)
return err;
}
-int minix_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+int minix_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
- struct super_block *sb = dentry->d_sb;
- generic_fillattr(d_inode(dentry), stat);
- if (INODE_VERSION(d_inode(dentry)) == MINIX_V1)
+ struct super_block *sb = path->dentry->d_sb;
+ struct inode *inode = d_inode(path->dentry);
+
+ generic_fillattr(inode, stat);
+ if (INODE_VERSION(inode) == MINIX_V1)
stat->blocks = (BLOCK_SIZE / 512) * V1_minix_blocks(stat->size, sb);
else
stat->blocks = (sb->s_blocksize / 512) * V2_minix_blocks(stat->size, sb);
diff --git a/fs/minix/minix.h b/fs/minix/minix.h
index 01ad81dcacc5..663d66138d06 100644
--- a/fs/minix/minix.h
+++ b/fs/minix/minix.h
@@ -51,7 +51,7 @@ extern unsigned long minix_count_free_inodes(struct super_block *sb);
extern int minix_new_block(struct inode * inode);
extern void minix_free_block(struct inode *inode, unsigned long block);
extern unsigned long minix_count_free_blocks(struct super_block *sb);
-extern int minix_getattr(struct vfsmount *, struct dentry *, struct kstat *);
+extern int minix_getattr(const struct path *, struct kstat *, u32, unsigned int);
extern int minix_prepare_chunk(struct page *page, loff_t pos, unsigned len);
extern void V1_minix_truncate(struct inode *);
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 685565b229c3..f489a5a71bd5 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -703,9 +703,10 @@ static bool nfs_need_revalidate_inode(struct inode *inode)
return false;
}
-int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+int nfs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
int need_atime = NFS_I(inode)->cache_validity & NFS_INO_INVALID_ATIME;
int err = 0;
@@ -726,17 +727,17 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
* - NFS never sets MS_NOATIME or MS_NODIRATIME so there is
* no point in checking those.
*/
- if ((mnt->mnt_flags & MNT_NOATIME) ||
- ((mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode)))
+ if ((path->mnt->mnt_flags & MNT_NOATIME) ||
+ ((path->mnt->mnt_flags & MNT_NODIRATIME) && S_ISDIR(inode->i_mode)))
need_atime = 0;
if (need_atime || nfs_need_revalidate_inode(inode)) {
struct nfs_server *server = NFS_SERVER(inode);
- nfs_readdirplus_parent_cache_miss(dentry);
+ nfs_readdirplus_parent_cache_miss(path->dentry);
err = __nfs_revalidate_inode(server, inode);
} else
- nfs_readdirplus_parent_cache_hit(dentry);
+ nfs_readdirplus_parent_cache_hit(path->dentry);
if (!err) {
generic_fillattr(inode, stat);
stat->ino = nfs_compat_user_ino64(NFS_FILEID(inode));
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index e49d831c4e85..786f17580582 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -178,11 +178,12 @@ out_nofree:
}
static int
-nfs_namespace_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+nfs_namespace_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- if (NFS_FH(d_inode(dentry))->size != 0)
- return nfs_getattr(mnt, dentry, stat);
- generic_fillattr(d_inode(dentry), stat);
+ if (NFS_FH(d_inode(path->dentry))->size != 0)
+ return nfs_getattr(path, stat, request_mask, query_flags);
+ generic_fillattr(d_inode(path->dentry), stat);
return 0;
}
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 382c1fd05b4c..33017d652b1d 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2301,7 +2301,7 @@ static int get_parent_attributes(struct svc_export *exp, struct kstat *stat)
if (path.dentry != path.mnt->mnt_root)
break;
}
- err = vfs_getattr(&path, stat);
+ err = vfs_getattr(&path, stat, STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT);
path_put(&path);
return err;
}
@@ -2385,7 +2385,7 @@ nfsd4_encode_fattr(struct xdr_stream *xdr, struct svc_fh *fhp,
goto out;
}
- err = vfs_getattr(&path, &stat);
+ err = vfs_getattr(&path, &stat, STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT);
if (err)
goto out_nfserr;
if ((bmval0 & (FATTR4_WORD0_FILES_AVAIL | FATTR4_WORD0_FILES_FREE |
diff --git a/fs/nfsd/vfs.h b/fs/nfsd/vfs.h
index db98c48c735a..1bbdccecbf3d 100644
--- a/fs/nfsd/vfs.h
+++ b/fs/nfsd/vfs.h
@@ -135,7 +135,8 @@ static inline __be32 fh_getattr(struct svc_fh *fh, struct kstat *stat)
{
struct path p = {.mnt = fh->fh_export->ex_path.mnt,
.dentry = fh->fh_dentry};
- return nfserrno(vfs_getattr(&p, stat));
+ return nfserrno(vfs_getattr(&p, stat, STATX_BASIC_STATS,
+ AT_STATX_SYNC_AS_STAT));
}
static inline int nfsd_create_is_exclusive(int createmode)
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 8836305eb378..bfeb647459d9 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -1306,16 +1306,15 @@ bail:
return status;
}
-int ocfs2_getattr(struct vfsmount *mnt,
- struct dentry *dentry,
- struct kstat *stat)
+int ocfs2_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
- struct inode *inode = d_inode(dentry);
- struct super_block *sb = dentry->d_sb;
+ struct inode *inode = d_inode(path->dentry);
+ struct super_block *sb = path->dentry->d_sb;
struct ocfs2_super *osb = sb->s_fs_info;
int err;
- err = ocfs2_inode_revalidate(dentry);
+ err = ocfs2_inode_revalidate(path->dentry);
if (err) {
if (err != -ENOENT)
mlog_errno(err);
diff --git a/fs/ocfs2/file.h b/fs/ocfs2/file.h
index 897fd9a2e51d..1fdc9839cd93 100644
--- a/fs/ocfs2/file.h
+++ b/fs/ocfs2/file.h
@@ -68,8 +68,8 @@ int ocfs2_zero_extend(struct inode *inode, struct buffer_head *di_bh,
int ocfs2_extend_allocation(struct inode *inode, u32 logical_start,
u32 clusters_to_add, int mark_unwritten);
int ocfs2_setattr(struct dentry *dentry, struct iattr *attr);
-int ocfs2_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat);
+int ocfs2_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags);
int ocfs2_permission(struct inode *inode, int mask);
int ocfs2_should_update_atime(struct inode *inode,
diff --git a/fs/orangefs/inode.c b/fs/orangefs/inode.c
index 5cd617980fbf..a304bf34b212 100644
--- a/fs/orangefs/inode.c
+++ b/fs/orangefs/inode.c
@@ -245,25 +245,24 @@ out:
/*
* Obtain attributes of an object given a dentry
*/
-int orangefs_getattr(struct vfsmount *mnt,
- struct dentry *dentry,
- struct kstat *kstat)
+int orangefs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
int ret = -ENOENT;
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = path->dentry->d_inode;
struct orangefs_inode_s *orangefs_inode = NULL;
gossip_debug(GOSSIP_INODE_DEBUG,
"orangefs_getattr: called on %pd\n",
- dentry);
+ path->dentry);
ret = orangefs_inode_getattr(inode, 0, 0);
if (ret == 0) {
- generic_fillattr(inode, kstat);
+ generic_fillattr(inode, stat);
/* override block size reported to stat */
orangefs_inode = ORANGEFS_I(inode);
- kstat->blksize = orangefs_inode->blksize;
+ stat->blksize = orangefs_inode->blksize;
}
return ret;
}
diff --git a/fs/orangefs/orangefs-kernel.h b/fs/orangefs/orangefs-kernel.h
index 8948683b367f..5e48a0be9761 100644
--- a/fs/orangefs/orangefs-kernel.h
+++ b/fs/orangefs/orangefs-kernel.h
@@ -439,9 +439,8 @@ struct inode *orangefs_new_inode(struct super_block *sb,
int orangefs_setattr(struct dentry *dentry, struct iattr *iattr);
-int orangefs_getattr(struct vfsmount *mnt,
- struct dentry *dentry,
- struct kstat *kstat);
+int orangefs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags);
int orangefs_permission(struct inode *inode, int mask);
diff --git a/fs/overlayfs/copy_up.c b/fs/overlayfs/copy_up.c
index a34aa7aa2563..2d4985018fdb 100644
--- a/fs/overlayfs/copy_up.c
+++ b/fs/overlayfs/copy_up.c
@@ -347,7 +347,8 @@ static int ovl_copy_up_one(struct dentry *parent, struct dentry *dentry,
ovl_path_upper(parent, &parentpath);
upperdir = parentpath.dentry;
- err = vfs_getattr(&parentpath, &pstat);
+ err = vfs_getattr(&parentpath, &pstat,
+ STATX_ATIME | STATX_MTIME, AT_STATX_SYNC_AS_STAT);
if (err)
return err;
@@ -410,7 +411,8 @@ int ovl_copy_up_flags(struct dentry *dentry, int flags)
}
ovl_path_lower(next, &lowerpath);
- err = vfs_getattr(&lowerpath, &stat);
+ err = vfs_getattr(&lowerpath, &stat,
+ STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT);
/* maybe truncate regular file. this has no effect on dirs */
if (flags & O_TRUNC)
stat.size = 0;
diff --git a/fs/overlayfs/dir.c b/fs/overlayfs/dir.c
index 16e06dd89457..6515796460df 100644
--- a/fs/overlayfs/dir.c
+++ b/fs/overlayfs/dir.c
@@ -138,9 +138,10 @@ static int ovl_set_opaque(struct dentry *dentry, struct dentry *upperdentry)
return err;
}
-static int ovl_dir_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+static int ovl_dir_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
+ struct dentry *dentry = path->dentry;
int err;
enum ovl_path_type type;
struct path realpath;
@@ -148,7 +149,7 @@ static int ovl_dir_getattr(struct vfsmount *mnt, struct dentry *dentry,
type = ovl_path_real(dentry, &realpath);
old_cred = ovl_override_creds(dentry->d_sb);
- err = vfs_getattr(&realpath, stat);
+ err = vfs_getattr(&realpath, stat, request_mask, flags);
revert_creds(old_cred);
if (err)
return err;
@@ -264,7 +265,8 @@ static struct dentry *ovl_clear_empty(struct dentry *dentry,
goto out;
ovl_path_upper(dentry, &upperpath);
- err = vfs_getattr(&upperpath, &stat);
+ err = vfs_getattr(&upperpath, &stat,
+ STATX_BASIC_STATS, AT_STATX_SYNC_AS_STAT);
if (err)
goto out_unlock;
diff --git a/fs/overlayfs/inode.c b/fs/overlayfs/inode.c
index 6639f487f835..f8fe6bf2036d 100644
--- a/fs/overlayfs/inode.c
+++ b/fs/overlayfs/inode.c
@@ -57,16 +57,17 @@ out:
return err;
}
-static int ovl_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+static int ovl_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
+ struct dentry *dentry = path->dentry;
struct path realpath;
const struct cred *old_cred;
int err;
ovl_path_real(dentry, &realpath);
old_cred = ovl_override_creds(dentry->d_sb);
- err = vfs_getattr(&realpath, stat);
+ err = vfs_getattr(&realpath, stat, request_mask, flags);
revert_creds(old_cred);
return err;
}
diff --git a/fs/proc/base.c b/fs/proc/base.c
index 2dae60075f6e..c87b6b9a8a76 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1729,11 +1729,12 @@ out_unlock:
return NULL;
}
-int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+int pid_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
struct task_struct *task;
- struct pid_namespace *pid = dentry->d_sb->s_fs_info;
+ struct pid_namespace *pid = path->dentry->d_sb->s_fs_info;
generic_fillattr(inode, stat);
@@ -3516,9 +3517,10 @@ static int proc_task_readdir(struct file *file, struct dir_context *ctx)
return 0;
}
-static int proc_task_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+static int proc_task_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
struct task_struct *p = get_proc_task(inode);
generic_fillattr(inode, stat);
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 06c73904d497..ee27feb34cf4 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -118,10 +118,10 @@ static int proc_notify_change(struct dentry *dentry, struct iattr *iattr)
return 0;
}
-static int proc_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+static int proc_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
struct proc_dir_entry *de = PDE(inode);
if (de && de->nlink)
set_nlink(inode, de->nlink);
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 26a6daf02185..c5ae09b6c726 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -151,7 +151,7 @@ extern int proc_pid_statm(struct seq_file *, struct pid_namespace *,
* base.c
*/
extern const struct dentry_operations pid_dentry_operations;
-extern int pid_getattr(struct vfsmount *, struct dentry *, struct kstat *);
+extern int pid_getattr(const struct path *, struct kstat *, u32, unsigned int);
extern int proc_setattr(struct dentry *, struct iattr *);
extern struct inode *proc_pid_make_inode(struct super_block *, struct task_struct *, umode_t);
extern int pid_revalidate(struct dentry *, unsigned int);
diff --git a/fs/proc/proc_net.c b/fs/proc/proc_net.c
index 5cbc65d7a1e1..d72fc40241d9 100644
--- a/fs/proc/proc_net.c
+++ b/fs/proc/proc_net.c
@@ -141,10 +141,10 @@ static struct dentry *proc_tgid_net_lookup(struct inode *dir,
return de;
}
-static int proc_tgid_net_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+static int proc_tgid_net_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
struct net *net;
net = get_proc_task_net(inode);
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 3d203b1f5a02..8f91ec66baa3 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -802,9 +802,10 @@ static int proc_sys_setattr(struct dentry *dentry, struct iattr *attr)
return 0;
}
-static int proc_sys_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+static int proc_sys_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
struct ctl_table_header *head = grab_header(inode);
struct ctl_table *table = PROC_I(inode)->sysctl_entry;
diff --git a/fs/proc/root.c b/fs/proc/root.c
index a50ba388255f..deecb397daa3 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -151,10 +151,10 @@ void __init proc_root_init(void)
proc_sys_init();
}
-static int proc_root_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat
-)
+static int proc_root_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- generic_fillattr(d_inode(dentry), stat);
+ generic_fillattr(d_inode(path->dentry), stat);
stat->nlink = proc_root.nlink + nr_processes();
return 0;
}
diff --git a/fs/stat.c b/fs/stat.c
index 95bd41762770..fa0be59340cc 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -19,6 +19,15 @@
#include <linux/uaccess.h>
#include <asm/unistd.h>
+/**
+ * generic_fillattr - Fill in the basic attributes from the inode struct
+ * @inode: Inode to use as the source
+ * @stat: Where to fill in the attributes
+ *
+ * Fill in the basic attributes in the kstat structure from data that's to be
+ * found on the VFS inode structure. This is the default if no getattr inode
+ * operation is supplied.
+ */
void generic_fillattr(struct inode *inode, struct kstat *stat)
{
stat->dev = inode->i_sb->s_dev;
@@ -34,81 +43,147 @@ void generic_fillattr(struct inode *inode, struct kstat *stat)
stat->ctime = inode->i_ctime;
stat->blksize = i_blocksize(inode);
stat->blocks = inode->i_blocks;
-}
+ if (IS_NOATIME(inode))
+ stat->result_mask &= ~STATX_ATIME;
+ if (IS_AUTOMOUNT(inode))
+ stat->attributes |= STATX_ATTR_AUTOMOUNT;
+}
EXPORT_SYMBOL(generic_fillattr);
/**
* vfs_getattr_nosec - getattr without security checks
* @path: file to get attributes from
* @stat: structure to return attributes in
+ * @request_mask: STATX_xxx flags indicating what the caller wants
+ * @query_flags: Query mode (KSTAT_QUERY_FLAGS)
*
* Get attributes without calling security_inode_getattr.
*
* Currently the only caller other than vfs_getattr is internal to the
- * filehandle lookup code, which uses only the inode number and returns
- * no attributes to any user. Any other code probably wants
- * vfs_getattr.
+ * filehandle lookup code, which uses only the inode number and returns no
+ * attributes to any user. Any other code probably wants vfs_getattr.
*/
-int vfs_getattr_nosec(struct path *path, struct kstat *stat)
+int vfs_getattr_nosec(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
struct inode *inode = d_backing_inode(path->dentry);
+ memset(stat, 0, sizeof(*stat));
+ stat->result_mask |= STATX_BASIC_STATS;
+ request_mask &= STATX_ALL;
+ query_flags &= KSTAT_QUERY_FLAGS;
if (inode->i_op->getattr)
- return inode->i_op->getattr(path->mnt, path->dentry, stat);
+ return inode->i_op->getattr(path, stat, request_mask,
+ query_flags);
generic_fillattr(inode, stat);
return 0;
}
-
EXPORT_SYMBOL(vfs_getattr_nosec);
-int vfs_getattr(struct path *path, struct kstat *stat)
+/*
+ * vfs_getattr - Get the enhanced basic attributes of a file
+ * @path: The file of interest
+ * @stat: Where to return the statistics
+ * @request_mask: STATX_xxx flags indicating what the caller wants
+ * @query_flags: Query mode (KSTAT_QUERY_FLAGS)
+ *
+ * Ask the filesystem for a file's attributes. The caller must indicate in
+ * request_mask and query_flags to indicate what they want.
+ *
+ * If the file is remote, the filesystem can be forced to update the attributes
+ * from the backing store by passing AT_STATX_FORCE_SYNC in query_flags or can
+ * suppress the update by passing AT_STATX_DONT_SYNC.
+ *
+ * Bits must have been set in request_mask to indicate which attributes the
+ * caller wants retrieving. Any such attribute not requested may be returned
+ * anyway, but the value may be approximate, and, if remote, may not have been
+ * synchronised with the server.
+ *
+ * 0 will be returned on success, and a -ve error code if unsuccessful.
+ */
+int vfs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
int retval;
retval = security_inode_getattr(path);
if (retval)
return retval;
- return vfs_getattr_nosec(path, stat);
+ return vfs_getattr_nosec(path, stat, request_mask, query_flags);
}
-
EXPORT_SYMBOL(vfs_getattr);
-int vfs_fstat(unsigned int fd, struct kstat *stat)
+/**
+ * vfs_statx_fd - Get the enhanced basic attributes by file descriptor
+ * @fd: The file descriptor referring to the file of interest
+ * @stat: The result structure to fill in.
+ * @request_mask: STATX_xxx flags indicating what the caller wants
+ * @query_flags: Query mode (KSTAT_QUERY_FLAGS)
+ *
+ * This function is a wrapper around vfs_getattr(). The main difference is
+ * that it uses a file descriptor to determine the file location.
+ *
+ * 0 will be returned on success, and a -ve error code if unsuccessful.
+ */
+int vfs_statx_fd(unsigned int fd, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
struct fd f = fdget_raw(fd);
int error = -EBADF;
if (f.file) {
- error = vfs_getattr(&f.file->f_path, stat);
+ error = vfs_getattr(&f.file->f_path, stat,
+ request_mask, query_flags);
fdput(f);
}
return error;
}
-EXPORT_SYMBOL(vfs_fstat);
+EXPORT_SYMBOL(vfs_statx_fd);
-int vfs_fstatat(int dfd, const char __user *filename, struct kstat *stat,
- int flag)
+/**
+ * vfs_statx - Get basic and extra attributes by filename
+ * @dfd: A file descriptor representing the base dir for a relative filename
+ * @filename: The name of the file of interest
+ * @flags: Flags to control the query
+ * @stat: The result structure to fill in.
+ * @request_mask: STATX_xxx flags indicating what the caller wants
+ *
+ * This function is a wrapper around vfs_getattr(). The main difference is
+ * that it uses a filename and base directory to determine the file location.
+ * Additionally, the use of AT_SYMLINK_NOFOLLOW in flags will prevent a symlink
+ * at the given name from being referenced.
+ *
+ * The caller must have preset stat->request_mask as for vfs_getattr(). The
+ * flags are also used to load up stat->query_flags.
+ *
+ * 0 will be returned on success, and a -ve error code if unsuccessful.
+ */
+int vfs_statx(int dfd, const char __user *filename, int flags,
+ struct kstat *stat, u32 request_mask)
{
struct path path;
int error = -EINVAL;
- unsigned int lookup_flags = 0;
+ unsigned int lookup_flags = LOOKUP_FOLLOW | LOOKUP_AUTOMOUNT;
- if ((flag & ~(AT_SYMLINK_NOFOLLOW | AT_NO_AUTOMOUNT |
- AT_EMPTY_PATH)) != 0)
- goto out;
+ if ((flags & ~(AT_SYMLINK_NOFOLLOW | AT_NO_AUTOMOUNT |
+ AT_EMPTY_PATH | KSTAT_QUERY_FLAGS)) != 0)
+ return -EINVAL;
- if (!(flag & AT_SYMLINK_NOFOLLOW))
- lookup_flags |= LOOKUP_FOLLOW;
- if (flag & AT_EMPTY_PATH)
+ if (flags & AT_SYMLINK_NOFOLLOW)
+ lookup_flags &= ~LOOKUP_FOLLOW;
+ if (flags & AT_NO_AUTOMOUNT)
+ lookup_flags &= ~LOOKUP_AUTOMOUNT;
+ if (flags & AT_EMPTY_PATH)
lookup_flags |= LOOKUP_EMPTY;
+
retry:
error = user_path_at(dfd, filename, lookup_flags, &path);
if (error)
goto out;
- error = vfs_getattr(&path, stat);
+ error = vfs_getattr(&path, stat, request_mask, flags);
path_put(&path);
if (retry_estale(error, lookup_flags)) {
lookup_flags |= LOOKUP_REVAL;
@@ -117,19 +192,7 @@ retry:
out:
return error;
}
-EXPORT_SYMBOL(vfs_fstatat);
-
-int vfs_stat(const char __user *name, struct kstat *stat)
-{
- return vfs_fstatat(AT_FDCWD, name, stat, 0);
-}
-EXPORT_SYMBOL(vfs_stat);
-
-int vfs_lstat(const char __user *name, struct kstat *stat)
-{
- return vfs_fstatat(AT_FDCWD, name, stat, AT_SYMLINK_NOFOLLOW);
-}
-EXPORT_SYMBOL(vfs_lstat);
+EXPORT_SYMBOL(vfs_statx);
#ifdef __ARCH_WANT_OLD_STAT
@@ -142,7 +205,7 @@ static int cp_old_stat(struct kstat *stat, struct __old_kernel_stat __user * sta
{
static int warncount = 5;
struct __old_kernel_stat tmp;
-
+
if (warncount > 0) {
warncount--;
printk(KERN_WARNING "VFS: Warning: %s using old stat() call. Recompile your binary.\n",
@@ -167,7 +230,7 @@ static int cp_old_stat(struct kstat *stat, struct __old_kernel_stat __user * sta
#if BITS_PER_LONG == 32
if (stat->size > MAX_NON_LFS)
return -EOVERFLOW;
-#endif
+#endif
tmp.st_size = stat->size;
tmp.st_atime = stat->atime.tv_sec;
tmp.st_mtime = stat->mtime.tv_sec;
@@ -446,6 +509,81 @@ SYSCALL_DEFINE4(fstatat64, int, dfd, const char __user *, filename,
}
#endif /* __ARCH_WANT_STAT64 || __ARCH_WANT_COMPAT_STAT64 */
+static inline int __put_timestamp(struct timespec *kts,
+ struct statx_timestamp __user *uts)
+{
+ return (__put_user(kts->tv_sec, &uts->tv_sec ) ||
+ __put_user(kts->tv_nsec, &uts->tv_nsec ) ||
+ __put_user(0, &uts->__reserved ));
+}
+
+/*
+ * Set the statx results.
+ */
+static long statx_set_result(struct kstat *stat, struct statx __user *buffer)
+{
+ uid_t uid = from_kuid_munged(current_user_ns(), stat->uid);
+ gid_t gid = from_kgid_munged(current_user_ns(), stat->gid);
+
+ if (__put_user(stat->result_mask, &buffer->stx_mask ) ||
+ __put_user(stat->mode, &buffer->stx_mode ) ||
+ __clear_user(&buffer->__spare0, sizeof(buffer->__spare0)) ||
+ __put_user(stat->nlink, &buffer->stx_nlink ) ||
+ __put_user(uid, &buffer->stx_uid ) ||
+ __put_user(gid, &buffer->stx_gid ) ||
+ __put_user(stat->attributes, &buffer->stx_attributes ) ||
+ __put_user(stat->blksize, &buffer->stx_blksize ) ||
+ __put_user(MAJOR(stat->rdev), &buffer->stx_rdev_major ) ||
+ __put_user(MINOR(stat->rdev), &buffer->stx_rdev_minor ) ||
+ __put_user(MAJOR(stat->dev), &buffer->stx_dev_major ) ||
+ __put_user(MINOR(stat->dev), &buffer->stx_dev_minor ) ||
+ __put_timestamp(&stat->atime, &buffer->stx_atime ) ||
+ __put_timestamp(&stat->btime, &buffer->stx_btime ) ||
+ __put_timestamp(&stat->ctime, &buffer->stx_ctime ) ||
+ __put_timestamp(&stat->mtime, &buffer->stx_mtime ) ||
+ __put_user(stat->ino, &buffer->stx_ino ) ||
+ __put_user(stat->size, &buffer->stx_size ) ||
+ __put_user(stat->blocks, &buffer->stx_blocks ) ||
+ __clear_user(&buffer->__spare1, sizeof(buffer->__spare1)) ||
+ __clear_user(&buffer->__spare2, sizeof(buffer->__spare2)))
+ return -EFAULT;
+
+ return 0;
+}
+
+/**
+ * sys_statx - System call to get enhanced stats
+ * @dfd: Base directory to pathwalk from *or* fd to stat.
+ * @filename: File to stat *or* NULL.
+ * @flags: AT_* flags to control pathwalk.
+ * @mask: Parts of statx struct actually required.
+ * @buffer: Result buffer.
+ *
+ * Note that if filename is NULL, then it does the equivalent of fstat() using
+ * dfd to indicate the file of interest.
+ */
+SYSCALL_DEFINE5(statx,
+ int, dfd, const char __user *, filename, unsigned, flags,
+ unsigned int, mask,
+ struct statx __user *, buffer)
+{
+ struct kstat stat;
+ int error;
+
+ if ((flags & AT_STATX_SYNC_TYPE) == AT_STATX_SYNC_TYPE)
+ return -EINVAL;
+ if (!access_ok(VERIFY_WRITE, buffer, sizeof(*buffer)))
+ return -EFAULT;
+
+ if (filename)
+ error = vfs_statx(dfd, filename, flags, &stat, mask);
+ else
+ error = vfs_statx_fd(dfd, &stat, mask, flags);
+ if (error)
+ return error;
+ return statx_set_result(&stat, buffer);
+}
+
/* Caller is here responsible for sufficient locking (ie. inode->i_lock) */
void __inode_add_bytes(struct inode *inode, loff_t bytes)
{
diff --git a/fs/sysv/itree.c b/fs/sysv/itree.c
index 08d3e630b49c..83809f5b5eca 100644
--- a/fs/sysv/itree.c
+++ b/fs/sysv/itree.c
@@ -440,10 +440,11 @@ static unsigned sysv_nblocks(struct super_block *s, loff_t size)
return blocks;
}
-int sysv_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
+int sysv_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
- struct super_block *s = dentry->d_sb;
- generic_fillattr(d_inode(dentry), stat);
+ struct super_block *s = path->dentry->d_sb;
+ generic_fillattr(d_inode(path->dentry), stat);
stat->blocks = (s->s_blocksize / 512) * sysv_nblocks(s, stat->size);
stat->blksize = s->s_blocksize;
return 0;
diff --git a/fs/sysv/sysv.h b/fs/sysv/sysv.h
index 6c212288adcb..1e7e27c729af 100644
--- a/fs/sysv/sysv.h
+++ b/fs/sysv/sysv.h
@@ -142,7 +142,7 @@ extern struct inode *sysv_iget(struct super_block *, unsigned int);
extern int sysv_write_inode(struct inode *, struct writeback_control *wbc);
extern int sysv_sync_inode(struct inode *);
extern void sysv_set_inode(struct inode *, dev_t);
-extern int sysv_getattr(struct vfsmount *, struct dentry *, struct kstat *);
+extern int sysv_getattr(const struct path *, struct kstat *, u32, unsigned int);
extern int sysv_init_icache(void);
extern void sysv_destroy_icache(void);
diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 528369f3e472..30825d882aa9 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -1622,11 +1622,11 @@ static int ubifs_rename(struct inode *old_dir, struct dentry *old_dentry,
return do_rename(old_dir, old_dentry, new_dir, new_dentry, flags);
}
-int ubifs_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+int ubifs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
loff_t size;
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
struct ubifs_inode *ui = ubifs_inode(inode);
mutex_lock(&ui->ui_mutex);
diff --git a/fs/ubifs/ubifs.h b/fs/ubifs/ubifs.h
index f0c86f076535..4d57e488038e 100644
--- a/fs/ubifs/ubifs.h
+++ b/fs/ubifs/ubifs.h
@@ -1749,8 +1749,8 @@ int ubifs_update_time(struct inode *inode, struct timespec *time, int flags);
/* dir.c */
struct inode *ubifs_new_inode(struct ubifs_info *c, struct inode *dir,
umode_t mode);
-int ubifs_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat);
+int ubifs_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags);
int ubifs_check_dir_empty(struct inode *dir);
/* xattr.c */
diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c
index f7dfef53f739..6023c97c6da2 100644
--- a/fs/udf/symlink.c
+++ b/fs/udf/symlink.c
@@ -152,9 +152,10 @@ out_unmap:
return err;
}
-static int udf_symlink_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+static int udf_symlink_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int flags)
{
+ struct dentry *dentry = path->dentry;
struct inode *inode = d_backing_inode(dentry);
struct page *page;
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 22c16155f1b4..229cc6a6d8ef 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -489,11 +489,12 @@ xfs_vn_get_link_inline(
STATIC int
xfs_vn_getattr(
- struct vfsmount *mnt,
- struct dentry *dentry,
- struct kstat *stat)
+ const struct path *path,
+ struct kstat *stat,
+ u32 request_mask,
+ unsigned int query_flags)
{
- struct inode *inode = d_inode(dentry);
+ struct inode *inode = d_inode(path->dentry);
struct xfs_inode *ip = XFS_I(inode);
struct xfs_mount *mp = ip->i_mount;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 52350947c670..aad3fd0ff5f8 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1709,7 +1709,7 @@ struct inode_operations {
int (*rename) (struct inode *, struct dentry *,
struct inode *, struct dentry *, unsigned int);
int (*setattr) (struct dentry *, struct iattr *);
- int (*getattr) (struct vfsmount *mnt, struct dentry *, struct kstat *);
+ int (*getattr) (const struct path *, struct kstat *, u32, unsigned int);
ssize_t (*listxattr) (struct dentry *, char *, size_t);
int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start,
u64 len);
@@ -2902,8 +2902,8 @@ extern int page_symlink(struct inode *inode, const char *symname, int len);
extern const struct inode_operations page_symlink_inode_operations;
extern void kfree_link(void *);
extern void generic_fillattr(struct inode *, struct kstat *);
-int vfs_getattr_nosec(struct path *path, struct kstat *stat);
-extern int vfs_getattr(struct path *, struct kstat *);
+extern int vfs_getattr_nosec(const struct path *, struct kstat *, u32, unsigned int);
+extern int vfs_getattr(const struct path *, struct kstat *, u32, unsigned int);
void __inode_add_bytes(struct inode *inode, loff_t bytes);
void inode_add_bytes(struct inode *inode, loff_t bytes);
void __inode_sub_bytes(struct inode *inode, loff_t bytes);
@@ -2916,10 +2916,29 @@ extern const struct inode_operations simple_symlink_inode_operations;
extern int iterate_dir(struct file *, struct dir_context *);
-extern int vfs_stat(const char __user *, struct kstat *);
-extern int vfs_lstat(const char __user *, struct kstat *);
-extern int vfs_fstat(unsigned int, struct kstat *);
-extern int vfs_fstatat(int , const char __user *, struct kstat *, int);
+extern int vfs_statx(int, const char __user *, int, struct kstat *, u32);
+extern int vfs_statx_fd(unsigned int, struct kstat *, u32, unsigned int);
+
+static inline int vfs_stat(const char __user *filename, struct kstat *stat)
+{
+ return vfs_statx(AT_FDCWD, filename, 0, stat, STATX_BASIC_STATS);
+}
+static inline int vfs_lstat(const char __user *name, struct kstat *stat)
+{
+ return vfs_statx(AT_FDCWD, name, AT_SYMLINK_NOFOLLOW,
+ stat, STATX_BASIC_STATS);
+}
+static inline int vfs_fstatat(int dfd, const char __user *filename,
+ struct kstat *stat, int flags)
+{
+ return vfs_statx(dfd, filename, flags, stat, STATX_BASIC_STATS);
+}
+static inline int vfs_fstat(int fd, struct kstat *stat)
+{
+ return vfs_statx_fd(fd, stat, STATX_BASIC_STATS, 0);
+}
+
+
extern const char *vfs_get_link(struct dentry *, struct delayed_call *);
extern int vfs_readlink(struct dentry *, char __user *, int);
@@ -2949,7 +2968,7 @@ extern int dcache_dir_close(struct inode *, struct file *);
extern loff_t dcache_dir_lseek(struct file *, loff_t, int);
extern int dcache_readdir(struct file *, struct dir_context *);
extern int simple_setattr(struct dentry *, struct iattr *);
-extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *);
+extern int simple_getattr(const struct path *, struct kstat *, u32, unsigned int);
extern int simple_statfs(struct dentry *, struct kstatfs *);
extern int simple_open(struct inode *inode, struct file *file);
extern int simple_link(struct dentry *, struct inode *, struct dentry *);
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index f1da8c8dd473..287f34161086 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -335,7 +335,7 @@ extern int nfs_refresh_inode(struct inode *, struct nfs_fattr *);
extern int nfs_post_op_update_inode(struct inode *inode, struct nfs_fattr *fattr);
extern int nfs_post_op_update_inode_force_wcc(struct inode *inode, struct nfs_fattr *fattr);
extern int nfs_post_op_update_inode_force_wcc_locked(struct inode *inode, struct nfs_fattr *fattr);
-extern int nfs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
+extern int nfs_getattr(const struct path *, struct kstat *, u32, unsigned int);
extern void nfs_access_add_cache(struct inode *, struct nfs_access_entry *);
extern void nfs_access_set_mask(struct nfs_access_entry *, u32);
extern int nfs_permission(struct inode *, int);
diff --git a/include/linux/stat.h b/include/linux/stat.h
index 075cb0c7eb2a..c76e524fb34b 100644
--- a/include/linux/stat.h
+++ b/include/linux/stat.h
@@ -18,20 +18,32 @@
#include <linux/time.h>
#include <linux/uidgid.h>
+#define KSTAT_QUERY_FLAGS (AT_STATX_SYNC_TYPE)
+
struct kstat {
- u64 ino;
- dev_t dev;
+ u32 result_mask; /* What fields the user got */
umode_t mode;
unsigned int nlink;
+ uint32_t blksize; /* Preferred I/O size */
+ u64 attributes;
+#define KSTAT_ATTR_FS_IOC_FLAGS \
+ (STATX_ATTR_COMPRESSED | \
+ STATX_ATTR_IMMUTABLE | \
+ STATX_ATTR_APPEND | \
+ STATX_ATTR_NODUMP | \
+ STATX_ATTR_ENCRYPTED \
+ )/* Attrs corresponding to FS_*_FL flags */
+ u64 ino;
+ dev_t dev;
+ dev_t rdev;
kuid_t uid;
kgid_t gid;
- dev_t rdev;
loff_t size;
- struct timespec atime;
+ struct timespec atime;
struct timespec mtime;
struct timespec ctime;
- unsigned long blksize;
- unsigned long long blocks;
+ struct timespec btime; /* File creation time */
+ u64 blocks;
};
#endif
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 91a740f6b884..980c3c9b06f8 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -48,6 +48,7 @@ struct stat;
struct stat64;
struct statfs;
struct statfs64;
+struct statx;
struct __sysctl_args;
struct sysinfo;
struct timespec;
@@ -902,5 +903,7 @@ asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
unsigned long prot, int pkey);
asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
asmlinkage long sys_pkey_free(int pkey);
+asmlinkage long sys_statx(int dfd, const char __user *path, unsigned flags,
+ unsigned mask, struct statx __user *buffer);
#endif
diff --git a/include/uapi/linux/fcntl.h b/include/uapi/linux/fcntl.h
index beed138bd359..813afd6eee71 100644
--- a/include/uapi/linux/fcntl.h
+++ b/include/uapi/linux/fcntl.h
@@ -63,5 +63,10 @@
#define AT_NO_AUTOMOUNT 0x800 /* Suppress terminal automount traversal */
#define AT_EMPTY_PATH 0x1000 /* Allow empty relative pathname */
+#define AT_STATX_SYNC_TYPE 0x6000 /* Type of synchronisation required from statx() */
+#define AT_STATX_SYNC_AS_STAT 0x0000 /* - Do whatever stat() does */
+#define AT_STATX_FORCE_SYNC 0x2000 /* - Force the attributes to be sync'd with the server */
+#define AT_STATX_DONT_SYNC 0x4000 /* - Don't sync attributes with the server */
+
#endif /* _UAPI_LINUX_FCNTL_H */
diff --git a/include/uapi/linux/stat.h b/include/uapi/linux/stat.h
index 7fec7e36d921..51a6b86e3700 100644
--- a/include/uapi/linux/stat.h
+++ b/include/uapi/linux/stat.h
@@ -1,6 +1,7 @@
#ifndef _UAPI_LINUX_STAT_H
#define _UAPI_LINUX_STAT_H
+#include <linux/types.h>
#if defined(__KERNEL__) || !defined(__GLIBC__) || (__GLIBC__ < 2)
@@ -41,5 +42,135 @@
#endif
+/*
+ * Timestamp structure for the timestamps in struct statx.
+ *
+ * tv_sec holds the number of seconds before (negative) or after (positive)
+ * 00:00:00 1st January 1970 UTC.
+ *
+ * tv_nsec holds a number of nanoseconds before (0..-999,999,999 if tv_sec is
+ * negative) or after (0..999,999,999 if tv_sec is positive) the tv_sec time.
+ *
+ * Note that if both tv_sec and tv_nsec are non-zero, then the two values must
+ * either be both positive or both negative.
+ *
+ * __reserved is held in case we need a yet finer resolution.
+ */
+struct statx_timestamp {
+ __s64 tv_sec;
+ __s32 tv_nsec;
+ __s32 __reserved;
+};
+
+/*
+ * Structures for the extended file attribute retrieval system call
+ * (statx()).
+ *
+ * The caller passes a mask of what they're specifically interested in as a
+ * parameter to statx(). What statx() actually got will be indicated in
+ * st_mask upon return.
+ *
+ * For each bit in the mask argument:
+ *
+ * - if the datum is not supported:
+ *
+ * - the bit will be cleared, and
+ *
+ * - the datum will be set to an appropriate fabricated value if one is
+ * available (eg. CIFS can take a default uid and gid), otherwise
+ *
+ * - the field will be cleared;
+ *
+ * - otherwise, if explicitly requested:
+ *
+ * - the datum will be synchronised to the server if AT_STATX_FORCE_SYNC is
+ * set or if the datum is considered out of date, and
+ *
+ * - the field will be filled in and the bit will be set;
+ *
+ * - otherwise, if not requested, but available in approximate form without any
+ * effort, it will be filled in anyway, and the bit will be set upon return
+ * (it might not be up to date, however, and no attempt will be made to
+ * synchronise the internal state first);
+ *
+ * - otherwise the field and the bit will be cleared before returning.
+ *
+ * Items in STATX_BASIC_STATS may be marked unavailable on return, but they
+ * will have values installed for compatibility purposes so that stat() and
+ * co. can be emulated in userspace.
+ */
+struct statx {
+ /* 0x00 */
+ __u32 stx_mask; /* What results were written [uncond] */
+ __u32 stx_blksize; /* Preferred general I/O size [uncond] */
+ __u64 stx_attributes; /* Flags conveying information about the file [uncond] */
+ /* 0x10 */
+ __u32 stx_nlink; /* Number of hard links */
+ __u32 stx_uid; /* User ID of owner */
+ __u32 stx_gid; /* Group ID of owner */
+ __u16 stx_mode; /* File mode */
+ __u16 __spare0[1];
+ /* 0x20 */
+ __u64 stx_ino; /* Inode number */
+ __u64 stx_size; /* File size */
+ __u64 stx_blocks; /* Number of 512-byte blocks allocated */
+ __u64 __spare1[1];
+ /* 0x40 */
+ struct statx_timestamp stx_atime; /* Last access time */
+ struct statx_timestamp stx_btime; /* File creation time */
+ struct statx_timestamp stx_ctime; /* Last attribute change time */
+ struct statx_timestamp stx_mtime; /* Last data modification time */
+ /* 0x80 */
+ __u32 stx_rdev_major; /* Device ID of special file [if bdev/cdev] */
+ __u32 stx_rdev_minor;
+ __u32 stx_dev_major; /* ID of device containing file [uncond] */
+ __u32 stx_dev_minor;
+ /* 0x90 */
+ __u64 __spare2[14]; /* Spare space for future expansion */
+ /* 0x100 */
+};
+
+/*
+ * Flags to be stx_mask
+ *
+ * Query request/result mask for statx() and struct statx::stx_mask.
+ *
+ * These bits should be set in the mask argument of statx() to request
+ * particular items when calling statx().
+ */
+#define STATX_TYPE 0x00000001U /* Want/got stx_mode & S_IFMT */
+#define STATX_MODE 0x00000002U /* Want/got stx_mode & ~S_IFMT */
+#define STATX_NLINK 0x00000004U /* Want/got stx_nlink */
+#define STATX_UID 0x00000008U /* Want/got stx_uid */
+#define STATX_GID 0x00000010U /* Want/got stx_gid */
+#define STATX_ATIME 0x00000020U /* Want/got stx_atime */
+#define STATX_MTIME 0x00000040U /* Want/got stx_mtime */
+#define STATX_CTIME 0x00000080U /* Want/got stx_ctime */
+#define STATX_INO 0x00000100U /* Want/got stx_ino */
+#define STATX_SIZE 0x00000200U /* Want/got stx_size */
+#define STATX_BLOCKS 0x00000400U /* Want/got stx_blocks */
+#define STATX_BASIC_STATS 0x000007ffU /* The stuff in the normal stat struct */
+#define STATX_BTIME 0x00000800U /* Want/got stx_btime */
+#define STATX_ALL 0x00000fffU /* All currently supported flags */
+
+/*
+ * Attributes to be found in stx_attributes
+ *
+ * These give information about the features or the state of a file that might
+ * be of use to ordinary userspace programs such as GUIs or ls rather than
+ * specialised tools.
+ *
+ * Note that the flags marked [I] correspond to generic FS_IOC_FLAGS
+ * semantically. Where possible, the numerical value is picked to correspond
+ * also.
+ */
+#define STATX_ATTR_COMPRESSED 0x00000004 /* [I] File is compressed by the fs */
+#define STATX_ATTR_IMMUTABLE 0x00000010 /* [I] File is marked immutable */
+#define STATX_ATTR_APPEND 0x00000020 /* [I] File is append-only */
+#define STATX_ATTR_NODUMP 0x00000040 /* [I] File is not to be dumped */
+#define STATX_ATTR_ENCRYPTED 0x00000800 /* [I] File requires key to decrypt in fs */
+
+#define STATX_ATTR_AUTOMOUNT 0x00001000 /* Dir: Automount trigger */
+
#endif /* _UAPI_LINUX_STAT_H */
diff --git a/mm/shmem.c b/mm/shmem.c
index de8cdef4ef9b..e67d6ba4e98e 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -959,10 +959,10 @@ void shmem_truncate_range(struct inode *inode, loff_t lstart, loff_t lend)
}
EXPORT_SYMBOL_GPL(shmem_truncate_range);
-static int shmem_getattr(struct vfsmount *mnt, struct dentry *dentry,
- struct kstat *stat)
+static int shmem_getattr(const struct path *path, struct kstat *stat,
+ u32 request_mask, unsigned int query_flags)
{
- struct inode *inode = dentry->d_inode;
+ struct inode *inode = path->dentry->d_inode;
struct shmem_inode_info *info = SHMEM_I(inode);
if (info->alloced - info->swapped != inode->i_mapping->nrpages) {
diff --git a/samples/Kconfig b/samples/Kconfig
index b124f62ed6cb..9cb63188d3ef 100644
--- a/samples/Kconfig
+++ b/samples/Kconfig
@@ -112,4 +112,10 @@ config SAMPLE_VFIO_MDEV_MTTY
Build a virtual tty sample driver for use as a VFIO
mediated device
+config SAMPLE_STATX
+ bool "Build example extended-stat using code"
+ depends on BROKEN
+ help
+ Build example userspace program to use the new extended-stat syscall.
+
endif # SAMPLES
diff --git a/samples/Makefile b/samples/Makefile
index 86a137e451d9..db54e766ddb1 100644
--- a/samples/Makefile
+++ b/samples/Makefile
@@ -3,4 +3,4 @@
obj-$(CONFIG_SAMPLES) += kobject/ kprobes/ trace_events/ livepatch/ \
hw_breakpoint/ kfifo/ kdb/ hidraw/ rpmsg/ seccomp/ \
configfs/ connector/ v4l/ trace_printk/ blackfin/ \
- vfio-mdev/
+ vfio-mdev/ statx/
diff --git a/samples/statx/Makefile b/samples/statx/Makefile
new file mode 100644
index 000000000000..1f80a3d8cf45
--- /dev/null
+++ b/samples/statx/Makefile
@@ -0,0 +1,10 @@
+# kbuild trick to avoid linker error. Can be omitted if a module is built.
+obj- := dummy.o
+
+# List of programs to build
+hostprogs-$(CONFIG_SAMPLE_STATX) := test-statx
+
+# Tell kbuild to always build the programs
+always := $(hostprogs-y)
+
+HOSTCFLAGS_test-statx.o += -I$(objtree)/usr/include
diff --git a/samples/statx/test-statx.c b/samples/statx/test-statx.c
new file mode 100644
index 000000000000..8571d766331d
--- /dev/null
+++ b/samples/statx/test-statx.c
@@ -0,0 +1,254 @@
+/* Test the statx() system call.
+ *
+ * Note that the output of this program is intended to look like the output of
+ * /bin/stat where possible.
+ *
+ * Copyright (C) 2015 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#define _GNU_SOURCE
+#define _ATFILE_SOURCE
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <errno.h>
+#include <time.h>
+#include <sys/syscall.h>
+#include <sys/types.h>
+#include <linux/stat.h>
+#include <linux/fcntl.h>
+#include <sys/stat.h>
+
+#define AT_STATX_SYNC_TYPE 0x6000
+#define AT_STATX_SYNC_AS_STAT 0x0000
+#define AT_STATX_FORCE_SYNC 0x2000
+#define AT_STATX_DONT_SYNC 0x4000
+
+static __attribute__((unused))
+ssize_t statx(int dfd, const char *filename, unsigned flags,
+ unsigned int mask, struct statx *buffer)
+{
+ return syscall(__NR_statx, dfd, filename, flags, mask, buffer);
+}
+
+static void print_time(const char *field, struct statx_timestamp *ts)
+{
+ struct tm tm;
+ time_t tim;
+ char buffer[100];
+ int len;
+
+ tim = ts->tv_sec;
+ if (!localtime_r(&tim, &tm)) {
+ perror("localtime_r");
+ exit(1);
+ }
+ len = strftime(buffer, 100, "%F %T", &tm);
+ if (len == 0) {
+ perror("strftime");
+ exit(1);
+ }
+ printf("%s", field);
+ fwrite(buffer, 1, len, stdout);
+ printf(".%09u", ts->tv_nsec);
+ len = strftime(buffer, 100, "%z", &tm);
+ if (len == 0) {
+ perror("strftime2");
+ exit(1);
+ }
+ fwrite(buffer, 1, len, stdout);
+ printf("\n");
+}
+
+static void dump_statx(struct statx *stx)
+{
+ char buffer[256], ft = '?';
+
+ printf("results=%x\n", stx->stx_mask);
+
+ printf(" ");
+ if (stx->stx_mask & STATX_SIZE)
+ printf(" Size: %-15llu", (unsigned long long)stx->stx_size);
+ if (stx->stx_mask & STATX_BLOCKS)
+ printf(" Blocks: %-10llu", (unsigned long long)stx->stx_blocks);
+ printf(" IO Block: %-6llu", (unsigned long long)stx->stx_blksize);
+ if (stx->stx_mask & STATX_TYPE) {
+ switch (stx->stx_mode & S_IFMT) {
+ case S_IFIFO: printf(" FIFO\n"); ft = 'p'; break;
+ case S_IFCHR: printf(" character special file\n"); ft = 'c'; break;
+ case S_IFDIR: printf(" directory\n"); ft = 'd'; break;
+ case S_IFBLK: printf(" block special file\n"); ft = 'b'; break;
+ case S_IFREG: printf(" regular file\n"); ft = '-'; break;
+ case S_IFLNK: printf(" symbolic link\n"); ft = 'l'; break;
+ case S_IFSOCK: printf(" socket\n"); ft = 's'; break;
+ default:
+ printf(" unknown type (%o)\n", stx->stx_mode & S_IFMT);
+ break;
+ }
+ } else {
+ printf(" no type\n");
+ }
+
+ sprintf(buffer, "%02x:%02x", stx->stx_dev_major, stx->stx_dev_minor);
+ printf("Device: %-15s", buffer);
+ if (stx->stx_mask & STATX_INO)
+ printf(" Inode: %-11llu", (unsigned long long) stx->stx_ino);
+ if (stx->stx_mask & STATX_NLINK)
+ printf(" Links: %-5u", stx->stx_nlink);
+ if (stx->stx_mask & STATX_TYPE) {
+ switch (stx->stx_mode & S_IFMT) {
+ case S_IFBLK:
+ case S_IFCHR:
+ printf(" Device type: %u,%u",
+ stx->stx_rdev_major, stx->stx_rdev_minor);
+ break;
+ }
+ }
+ printf("\n");
+
+ if (stx->stx_mask & STATX_MODE)
+ printf("Access: (%04o/%c%c%c%c%c%c%c%c%c%c) ",
+ stx->stx_mode & 07777,
+ ft,
+ stx->stx_mode & S_IRUSR ? 'r' : '-',
+ stx->stx_mode & S_IWUSR ? 'w' : '-',
+ stx->stx_mode & S_IXUSR ? 'x' : '-',
+ stx->stx_mode & S_IRGRP ? 'r' : '-',
+ stx->stx_mode & S_IWGRP ? 'w' : '-',
+ stx->stx_mode & S_IXGRP ? 'x' : '-',
+ stx->stx_mode & S_IROTH ? 'r' : '-',
+ stx->stx_mode & S_IWOTH ? 'w' : '-',
+ stx->stx_mode & S_IXOTH ? 'x' : '-');
+ if (stx->stx_mask & STATX_UID)
+ printf("Uid: %5d ", stx->stx_uid);
+ if (stx->stx_mask & STATX_GID)
+ printf("Gid: %5d\n", stx->stx_gid);
+
+ if (stx->stx_mask & STATX_ATIME)
+ print_time("Access: ", &stx->stx_atime);
+ if (stx->stx_mask & STATX_MTIME)
+ print_time("Modify: ", &stx->stx_mtime);
+ if (stx->stx_mask & STATX_CTIME)
+ print_time("Change: ", &stx->stx_ctime);
+ if (stx->stx_mask & STATX_BTIME)
+ print_time(" Birth: ", &stx->stx_btime);
+
+ if (stx->stx_attributes) {
+ unsigned char bits;
+ int loop, byte;
+
+ static char attr_representation[64 + 1] =
+ /* STATX_ATTR_ flags: */
+ "????????" /* 63-56 */
+ "????????" /* 55-48 */
+ "????????" /* 47-40 */
+ "????????" /* 39-32 */
+ "????????" /* 31-24 0x00000000-ff000000 */
+ "????????" /* 23-16 0x00000000-00ff0000 */
+ "???me???" /* 15- 8 0x00000000-0000ff00 */
+ "?dai?c??" /* 7- 0 0x00000000-000000ff */
+ ;
+
+ printf("Attributes: %016llx (", stx->stx_attributes);
+ for (byte = 64 - 8; byte >= 0; byte -= 8) {
+ bits = stx->stx_attributes >> byte;
+ for (loop = 7; loop >= 0; loop--) {
+ int bit = byte + loop;
+
+ if (bits & 0x80)
+ putchar(attr_representation[63 - bit]);
+ else
+ putchar('-');
+ bits <<= 1;
+ }
+ if (byte)
+ putchar(' ');
+ }
+ printf(")\n");
+ }
+}
+
+static void dump_hex(unsigned long long *data, int from, int to)
+{
+ unsigned offset, print_offset = 1, col = 0;
+
+ from /= 8;
+ to = (to + 7) / 8;
+
+ for (offset = from; offset < to; offset++) {
+ if (print_offset) {
+ printf("%04x: ", offset * 8);
+ print_offset = 0;
+ }
+ printf("%016llx", data[offset]);
+ col++;
+ if ((col & 3) == 0) {
+ printf("\n");
+ print_offset = 1;
+ } else {
+ printf(" ");
+ }
+ }
+
+ if (!print_offset)
+ printf("\n");
+}
+
+int main(int argc, char **argv)
+{
+ struct statx stx;
+ int ret, raw = 0, atflag = AT_SYMLINK_NOFOLLOW;
+
+ unsigned int mask = STATX_ALL;
+
+ for (argv++; *argv; argv++) {
+ if (strcmp(*argv, "-F") == 0) {
+ atflag &= ~AT_STATX_SYNC_TYPE;
+ atflag |= AT_STATX_FORCE_SYNC;
+ continue;
+ }
+ if (strcmp(*argv, "-D") == 0) {
+ atflag &= ~AT_STATX_SYNC_TYPE;
+ atflag |= AT_STATX_DONT_SYNC;
+ continue;
+ }
+ if (strcmp(*argv, "-L") == 0) {
+ atflag &= ~AT_SYMLINK_NOFOLLOW;
+ continue;
+ }
+ if (strcmp(*argv, "-O") == 0) {
+ mask &= ~STATX_BASIC_STATS;
+ continue;
+ }
+ if (strcmp(*argv, "-A") == 0) {
+ atflag |= AT_NO_AUTOMOUNT;
+ continue;
+ }
+ if (strcmp(*argv, "-R") == 0) {
+ raw = 1;
+ continue;
+ }
+
+ memset(&stx, 0xbf, sizeof(stx));
+ ret = statx(AT_FDCWD, *argv, atflag, mask, &stx);
+ printf("statx(%s) = %d\n", *argv, ret);
+ if (ret < 0) {
+ perror(*argv);
+ exit(1);
+ }
+
+ if (raw)
+ dump_hex((unsigned long long *)&stx, 0, sizeof(stx));
+
+ dump_statx(&stx);
+ }
+ return 0;
+}