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authorLinus Torvalds <torvalds@linux-foundation.org>2013-06-01 06:50:16 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2013-06-01 06:50:16 +0900
commite8d256aca05b6de163605a04f86e5827ef77899f (patch)
tree05de636b72b3d96808daea2aba104e07d722f79d
parent977b55cf988b86cdc929fef730a78aca98a8ebdb (diff)
parente400d27d1690d609f203f2d7d8efebc98cbc3089 (diff)
downloadlinux-e8d256aca05b6de163605a04f86e5827ef77899f.tar.gz
Merge tag 'for-linus-v3.10-rc4' of git://oss.sgi.com/xfs/xfs
Pull xfs fixes from Ben Myers: - Fix nested transactions in xfs_qm_scall_setqlim - Clear suid/sgid bits when we truncate with size update - Fix recovery for split buffers - Fix block count on remote symlinks - Add fsgeom flag for v5 superblock support - Disable XFS_IOC_SWAPEXT for CRC enabled filesystems - Fix dirv3 freespace block corruption * tag 'for-linus-v3.10-rc4' of git://oss.sgi.com/xfs/xfs: xfs: fix dir3 freespace block corruption xfs: disable swap extents ioctl on CRC enabled filesystems xfs: add fsgeom flag for v5 superblock support. xfs: fix incorrect remote symlink block count xfs: fix split buffer vector log recovery support xfs: kill suid/sgid through the truncate path. xfs: avoid nesting transactions in xfs_qm_scall_setqlim()
-rw-r--r--fs/xfs/xfs_buf_item.c7
-rw-r--r--fs/xfs/xfs_dfrag.c8
-rw-r--r--fs/xfs/xfs_dir2_format.h1
-rw-r--r--fs/xfs/xfs_dir2_node.c13
-rw-r--r--fs/xfs/xfs_fs.h1
-rw-r--r--fs/xfs/xfs_fsops.c4
-rw-r--r--fs/xfs/xfs_iops.c47
-rw-r--r--fs/xfs/xfs_log_recover.c11
-rw-r--r--fs/xfs/xfs_qm_syscalls.c40
-rw-r--r--fs/xfs/xfs_symlink.c20
10 files changed, 92 insertions, 60 deletions
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index cf263476d6b..4ec43177704 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -262,12 +262,7 @@ xfs_buf_item_format_segment(
vecp->i_addr = xfs_buf_offset(bp, buffer_offset);
vecp->i_len = nbits * XFS_BLF_CHUNK;
vecp->i_type = XLOG_REG_TYPE_BCHUNK;
-/*
- * You would think we need to bump the nvecs here too, but we do not
- * this number is used by recovery, and it gets confused by the boundary
- * split here
- * nvecs++;
- */
+ nvecs++;
vecp++;
first_bit = next_bit;
last_bit = next_bit;
diff --git a/fs/xfs/xfs_dfrag.c b/fs/xfs/xfs_dfrag.c
index f852b082a08..c407e1ccff4 100644
--- a/fs/xfs/xfs_dfrag.c
+++ b/fs/xfs/xfs_dfrag.c
@@ -219,6 +219,14 @@ xfs_swap_extents(
int taforkblks = 0;
__uint64_t tmp;
+ /*
+ * We have no way of updating owner information in the BMBT blocks for
+ * each inode on CRC enabled filesystems, so to avoid corrupting the
+ * this metadata we simply don't allow extent swaps to occur.
+ */
+ if (xfs_sb_version_hascrc(&mp->m_sb))
+ return XFS_ERROR(EINVAL);
+
tempifp = kmem_alloc(sizeof(xfs_ifork_t), KM_MAYFAIL);
if (!tempifp) {
error = XFS_ERROR(ENOMEM);
diff --git a/fs/xfs/xfs_dir2_format.h b/fs/xfs/xfs_dir2_format.h
index a3b1bd841a8..995f1f505a5 100644
--- a/fs/xfs/xfs_dir2_format.h
+++ b/fs/xfs/xfs_dir2_format.h
@@ -715,6 +715,7 @@ struct xfs_dir3_free_hdr {
__be32 firstdb; /* db of first entry */
__be32 nvalid; /* count of valid entries */
__be32 nused; /* count of used entries */
+ __be32 pad; /* 64 bit alignment. */
};
struct xfs_dir3_free {
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 5246de4912d..2226a00acd1 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -263,18 +263,19 @@ xfs_dir3_free_get_buf(
* Initialize the new block to be empty, and remember
* its first slot as our empty slot.
*/
- hdr.magic = XFS_DIR2_FREE_MAGIC;
- hdr.firstdb = 0;
- hdr.nused = 0;
- hdr.nvalid = 0;
+ memset(bp->b_addr, 0, sizeof(struct xfs_dir3_free_hdr));
+ memset(&hdr, 0, sizeof(hdr));
+
if (xfs_sb_version_hascrc(&mp->m_sb)) {
struct xfs_dir3_free_hdr *hdr3 = bp->b_addr;
hdr.magic = XFS_DIR3_FREE_MAGIC;
+
hdr3->hdr.blkno = cpu_to_be64(bp->b_bn);
hdr3->hdr.owner = cpu_to_be64(dp->i_ino);
uuid_copy(&hdr3->hdr.uuid, &mp->m_sb.sb_uuid);
- }
+ } else
+ hdr.magic = XFS_DIR2_FREE_MAGIC;
xfs_dir3_free_hdr_to_disk(bp->b_addr, &hdr);
*bpp = bp;
return 0;
@@ -1921,8 +1922,6 @@ xfs_dir2_node_addname_int(
*/
freehdr.firstdb = (fbno - XFS_DIR2_FREE_FIRSTDB(mp)) *
xfs_dir3_free_max_bests(mp);
- free->hdr.nvalid = 0;
- free->hdr.nused = 0;
} else {
free = fbp->b_addr;
bests = xfs_dir3_free_bests_p(mp, free);
diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h
index 6dda3f949b0..d0469554539 100644
--- a/fs/xfs/xfs_fs.h
+++ b/fs/xfs/xfs_fs.h
@@ -236,6 +236,7 @@ typedef struct xfs_fsop_resblks {
#define XFS_FSOP_GEOM_FLAGS_PROJID32 0x0800 /* 32-bit project IDs */
#define XFS_FSOP_GEOM_FLAGS_DIRV2CI 0x1000 /* ASCII only CI names */
#define XFS_FSOP_GEOM_FLAGS_LAZYSB 0x4000 /* lazy superblock counters */
+#define XFS_FSOP_GEOM_FLAGS_V5SB 0x8000 /* version 5 superblock */
/*
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index 87595b211da..3c3644ea825 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -99,7 +99,9 @@ xfs_fs_geometry(
(xfs_sb_version_hasattr2(&mp->m_sb) ?
XFS_FSOP_GEOM_FLAGS_ATTR2 : 0) |
(xfs_sb_version_hasprojid32bit(&mp->m_sb) ?
- XFS_FSOP_GEOM_FLAGS_PROJID32 : 0);
+ XFS_FSOP_GEOM_FLAGS_PROJID32 : 0) |
+ (xfs_sb_version_hascrc(&mp->m_sb) ?
+ XFS_FSOP_GEOM_FLAGS_V5SB : 0);
geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ?
mp->m_sb.sb_logsectsize : BBSIZE;
geo->rtsectsize = mp->m_sb.sb_blocksize;
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index d82efaa2ac7..ca9ecaa8111 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -455,6 +455,28 @@ xfs_vn_getattr(
return 0;
}
+static void
+xfs_setattr_mode(
+ struct xfs_trans *tp,
+ struct xfs_inode *ip,
+ struct iattr *iattr)
+{
+ struct inode *inode = VFS_I(ip);
+ umode_t mode = iattr->ia_mode;
+
+ ASSERT(tp);
+ ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
+
+ if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
+ mode &= ~S_ISGID;
+
+ ip->i_d.di_mode &= S_IFMT;
+ ip->i_d.di_mode |= mode & ~S_IFMT;
+
+ inode->i_mode &= S_IFMT;
+ inode->i_mode |= mode & ~S_IFMT;
+}
+
int
xfs_setattr_nonsize(
struct xfs_inode *ip,
@@ -606,18 +628,8 @@ xfs_setattr_nonsize(
/*
* Change file access modes.
*/
- if (mask & ATTR_MODE) {
- umode_t mode = iattr->ia_mode;
-
- if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
- mode &= ~S_ISGID;
-
- ip->i_d.di_mode &= S_IFMT;
- ip->i_d.di_mode |= mode & ~S_IFMT;
-
- inode->i_mode &= S_IFMT;
- inode->i_mode |= mode & ~S_IFMT;
- }
+ if (mask & ATTR_MODE)
+ xfs_setattr_mode(tp, ip, iattr);
/*
* Change file access or modified times.
@@ -714,9 +726,8 @@ xfs_setattr_size(
return XFS_ERROR(error);
ASSERT(S_ISREG(ip->i_d.di_mode));
- ASSERT((mask & (ATTR_MODE|ATTR_UID|ATTR_GID|ATTR_ATIME|ATTR_ATIME_SET|
- ATTR_MTIME_SET|ATTR_KILL_SUID|ATTR_KILL_SGID|
- ATTR_KILL_PRIV|ATTR_TIMES_SET)) == 0);
+ ASSERT((mask & (ATTR_UID|ATTR_GID|ATTR_ATIME|ATTR_ATIME_SET|
+ ATTR_MTIME_SET|ATTR_KILL_PRIV|ATTR_TIMES_SET)) == 0);
if (!(flags & XFS_ATTR_NOLOCK)) {
lock_flags |= XFS_IOLOCK_EXCL;
@@ -860,6 +871,12 @@ xfs_setattr_size(
xfs_inode_clear_eofblocks_tag(ip);
}
+ /*
+ * Change file access modes.
+ */
+ if (mask & ATTR_MODE)
+ xfs_setattr_mode(tp, ip, iattr);
+
if (mask & ATTR_CTIME) {
inode->i_ctime = iattr->ia_ctime;
ip->i_d.di_ctime.t_sec = iattr->ia_ctime.tv_sec;
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 93f03ec17ee..d9e4d3c3991 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -2097,6 +2097,17 @@ xlog_recover_do_reg_buffer(
((uint)bit << XFS_BLF_SHIFT) + (nbits << XFS_BLF_SHIFT));
/*
+ * The dirty regions logged in the buffer, even though
+ * contiguous, may span multiple chunks. This is because the
+ * dirty region may span a physical page boundary in a buffer
+ * and hence be split into two separate vectors for writing into
+ * the log. Hence we need to trim nbits back to the length of
+ * the current region being copied out of the log.
+ */
+ if (item->ri_buf[i].i_len < (nbits << XFS_BLF_SHIFT))
+ nbits = item->ri_buf[i].i_len >> XFS_BLF_SHIFT;
+
+ /*
* Do a sanity check if this is a dquot buffer. Just checking
* the first dquot in the buffer should do. XXXThis is
* probably a good thing to do for other buf types also.
diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index c41190cad6e..6cdf6ffc36a 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -489,31 +489,36 @@ xfs_qm_scall_setqlim(
if ((newlim->d_fieldmask & XFS_DQ_MASK) == 0)
return 0;
- tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM);
- error = xfs_trans_reserve(tp, 0, XFS_QM_SETQLIM_LOG_RES(mp),
- 0, 0, XFS_DEFAULT_LOG_COUNT);
- if (error) {
- xfs_trans_cancel(tp, 0);
- return (error);
- }
-
/*
* We don't want to race with a quotaoff so take the quotaoff lock.
- * (We don't hold an inode lock, so there's nothing else to stop
- * a quotaoff from happening). (XXXThis doesn't currently happen
- * because we take the vfslock before calling xfs_qm_sysent).
+ * We don't hold an inode lock, so there's nothing else to stop
+ * a quotaoff from happening.
*/
mutex_lock(&q->qi_quotaofflock);
/*
- * Get the dquot (locked), and join it to the transaction.
- * Allocate the dquot if this doesn't exist.
+ * Get the dquot (locked) before we start, as we need to do a
+ * transaction to allocate it if it doesn't exist. Once we have the
+ * dquot, unlock it so we can start the next transaction safely. We hold
+ * a reference to the dquot, so it's safe to do this unlock/lock without
+ * it being reclaimed in the mean time.
*/
- if ((error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp))) {
- xfs_trans_cancel(tp, XFS_TRANS_ABORT);
+ error = xfs_qm_dqget(mp, NULL, id, type, XFS_QMOPT_DQALLOC, &dqp);
+ if (error) {
ASSERT(error != ENOENT);
goto out_unlock;
}
+ xfs_dqunlock(dqp);
+
+ tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SETQLIM);
+ error = xfs_trans_reserve(tp, 0, XFS_QM_SETQLIM_LOG_RES(mp),
+ 0, 0, XFS_DEFAULT_LOG_COUNT);
+ if (error) {
+ xfs_trans_cancel(tp, 0);
+ goto out_rele;
+ }
+
+ xfs_dqlock(dqp);
xfs_trans_dqjoin(tp, dqp);
ddq = &dqp->q_core;
@@ -621,9 +626,10 @@ xfs_qm_scall_setqlim(
xfs_trans_log_dquot(tp, dqp);
error = xfs_trans_commit(tp, 0);
- xfs_qm_dqrele(dqp);
- out_unlock:
+out_rele:
+ xfs_qm_dqrele(dqp);
+out_unlock:
mutex_unlock(&q->qi_quotaofflock);
return error;
}
diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
index 5f234389327..195a403e152 100644
--- a/fs/xfs/xfs_symlink.c
+++ b/fs/xfs/xfs_symlink.c
@@ -56,16 +56,9 @@ xfs_symlink_blocks(
struct xfs_mount *mp,
int pathlen)
{
- int fsblocks = 0;
- int len = pathlen;
+ int buflen = XFS_SYMLINK_BUF_SPACE(mp, mp->m_sb.sb_blocksize);
- do {
- fsblocks++;
- len -= XFS_SYMLINK_BUF_SPACE(mp, mp->m_sb.sb_blocksize);
- } while (len > 0);
-
- ASSERT(fsblocks <= XFS_SYMLINK_MAPS);
- return fsblocks;
+ return (pathlen + buflen - 1) / buflen;
}
static int
@@ -405,7 +398,7 @@ xfs_symlink(
if (pathlen <= XFS_LITINO(mp, dp->i_d.di_version))
fs_blocks = 0;
else
- fs_blocks = XFS_B_TO_FSB(mp, pathlen);
+ fs_blocks = xfs_symlink_blocks(mp, pathlen);
resblks = XFS_SYMLINK_SPACE_RES(mp, link_name->len, fs_blocks);
error = xfs_trans_reserve(tp, resblks, XFS_SYMLINK_LOG_RES(mp), 0,
XFS_TRANS_PERM_LOG_RES, XFS_SYMLINK_LOG_COUNT);
@@ -512,7 +505,7 @@ xfs_symlink(
cur_chunk = target_path;
offset = 0;
for (n = 0; n < nmaps; n++) {
- char *buf;
+ char *buf;
d = XFS_FSB_TO_DADDR(mp, mval[n].br_startblock);
byte_cnt = XFS_FSB_TO_B(mp, mval[n].br_blockcount);
@@ -525,9 +518,7 @@ xfs_symlink(
bp->b_ops = &xfs_symlink_buf_ops;
byte_cnt = XFS_SYMLINK_BUF_SPACE(mp, byte_cnt);
- if (pathlen < byte_cnt) {
- byte_cnt = pathlen;
- }
+ byte_cnt = min(byte_cnt, pathlen);
buf = bp->b_addr;
buf += xfs_symlink_hdr_set(mp, ip->i_ino, offset,
@@ -542,6 +533,7 @@ xfs_symlink(
xfs_trans_log_buf(tp, bp, 0, (buf + byte_cnt - 1) -
(char *)bp->b_addr);
}
+ ASSERT(pathlen == 0);
}
/*