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| author | Al Viro <viro@zeniv.linux.org.uk> | 2009-08-09 00:52:35 +0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-12-16 12:16:42 -0500 |
| commit | 2c48b9c45579a9b5e3e74694eebf3d2451f3dbd3 (patch) | |
| tree | cecbf786ae0650368a8136bdd90910e05d9b95c3 /fs/pipe.c | |
| parent | a95161aaa801c18c52b2e7cf3d6b4b141c00a20a (diff) | |
| download | lwn-2c48b9c45579a9b5e3e74694eebf3d2451f3dbd3.tar.gz lwn-2c48b9c45579a9b5e3e74694eebf3d2451f3dbd3.zip | |
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 'fs/pipe.c')
| -rw-r--r-- | fs/pipe.c | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/fs/pipe.c b/fs/pipe.c index ae17d026aaa3..81288bc2bcbb 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -974,7 +974,7 @@ struct file *create_write_pipe(int flags) int err; struct inode *inode; struct file *f; - struct dentry *dentry; + struct path path; struct qstr name = { .name = "" }; err = -ENFILE; @@ -983,21 +983,22 @@ struct file *create_write_pipe(int flags) goto err; err = -ENOMEM; - dentry = d_alloc(pipe_mnt->mnt_sb->s_root, &name); - if (!dentry) + path.dentry = d_alloc(pipe_mnt->mnt_sb->s_root, &name); + if (!path.dentry) goto err_inode; + path.mnt = mntget(pipe_mnt); - dentry->d_op = &pipefs_dentry_operations; + path.dentry->d_op = &pipefs_dentry_operations; /* * We dont want to publish this dentry into global dentry hash table. * We pretend dentry is already hashed, by unsetting DCACHE_UNHASHED * This permits a working /proc/$pid/fd/XXX on pipes */ - dentry->d_flags &= ~DCACHE_UNHASHED; - d_instantiate(dentry, inode); + path.dentry->d_flags &= ~DCACHE_UNHASHED; + d_instantiate(path.dentry, inode); err = -ENFILE; - f = alloc_file(pipe_mnt, dentry, FMODE_WRITE, &write_pipefifo_fops); + f = alloc_file(&path, FMODE_WRITE, &write_pipefifo_fops); if (!f) goto err_dentry; f->f_mapping = inode->i_mapping; @@ -1009,7 +1010,7 @@ struct file *create_write_pipe(int flags) err_dentry: free_pipe_info(inode); - dput(dentry); + path_put(&path); return ERR_PTR(err); err_inode: |