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authorAl Viro <viro@zeniv.linux.org.uk>2009-08-09 00:52:35 +0400
committerAl Viro <viro@zeniv.linux.org.uk>2009-12-16 12:16:42 -0500
commit2c48b9c45579a9b5e3e74694eebf3d2451f3dbd3 (patch)
treececbf786ae0650368a8136bdd90910e05d9b95c3 /mm
parenta95161aaa801c18c52b2e7cf3d6b4b141c00a20a (diff)
downloadvexpress-lsk-2c48b9c45579a9b5e3e74694eebf3d2451f3dbd3.tar.gz
switch alloc_file() to passing struct path
... and have the caller grab both mnt and dentry; kill leak in infiniband, while we are at it. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'mm')
-rw-r--r--mm/shmem.c14
1 files changed, 8 insertions, 6 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index ef8f47473c5..d2ec7f029ff 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2626,7 +2626,8 @@ struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags
int error;
struct file *file;
struct inode *inode;
- struct dentry *dentry, *root;
+ struct path path;
+ struct dentry *root;
struct qstr this;
if (IS_ERR(shm_mnt))
@@ -2643,16 +2644,17 @@ struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags
this.len = strlen(name);
this.hash = 0; /* will go */
root = shm_mnt->mnt_root;
- dentry = d_alloc(root, &this);
- if (!dentry)
+ path.dentry = d_alloc(root, &this);
+ if (!path.dentry)
goto put_memory;
+ path.mnt = mntget(shm_mnt);
error = -ENOSPC;
inode = shmem_get_inode(root->d_sb, S_IFREG | S_IRWXUGO, 0, flags);
if (!inode)
goto put_dentry;
- d_instantiate(dentry, inode);
+ d_instantiate(path.dentry, inode);
inode->i_size = size;
inode->i_nlink = 0; /* It is unlinked */
#ifndef CONFIG_MMU
@@ -2662,7 +2664,7 @@ struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags
#endif
error = -ENFILE;
- file = alloc_file(shm_mnt, dentry, FMODE_WRITE | FMODE_READ,
+ file = alloc_file(&path, FMODE_WRITE | FMODE_READ,
&shmem_file_operations);
if (!file)
goto put_dentry;
@@ -2671,7 +2673,7 @@ struct file *shmem_file_setup(const char *name, loff_t size, unsigned long flags
return file;
put_dentry:
- dput(dentry);
+ path_put(&path);
put_memory:
shmem_unacct_size(flags, size);
return ERR_PTR(error);