diff options
| author | Jeff Layton <jlayton@redhat.com> | 2009-07-05 11:01:02 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-07-30 14:39:23 -0700 |
| commit | 9d33821d65cdad2af0461f3a6268125cc8a33052 (patch) | |
| tree | 90858b845f21ce35df6915234ea088ffb451c14c /fs | |
| parent | 4a6e5fa799ff02f0f2380c81256788073df9de79 (diff) | |
cifs: fix regression with O_EXCL creates and optimize away lookup
commit 5ddf1e0ff00fd808c048d0b920784828276cc516 upstream.
cifs: fix regression with O_EXCL creates and optimize away lookup
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Tested-by: Shirish Pargaonkar <shirishp@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cifs/dir.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index 3758965d73d5..83440ca44c03 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -641,6 +641,15 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, } } + /* + * O_EXCL: optimize away the lookup, but don't hash the dentry. Let + * the VFS handle the create. + */ + if (nd->flags & LOOKUP_EXCL) { + d_instantiate(direntry, NULL); + return 0; + } + /* can not grab the rename sem here since it would deadlock in the cases (beginning of sys_rename itself) in which we already have the sb rename sem */ |