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| author | Suresh Jayaraman <sjayaraman@suse.de> | 2010-09-17 18:56:39 +0530 |
|---|---|---|
| committer | Steve French <sfrench@us.ibm.com> | 2010-09-29 19:04:28 +0000 |
| commit | aa91c7e4ab9b0842b7d7a7cbf8cca18b20df89b5 (patch) | |
| tree | 94827b3006d85b8accf179ea3da30e1569983e68 /fs/cifs/dir.c | |
| parent | a347ecb209b58a1b37f20d8299ab552f7d3ee8c3 (diff) | |
| download | op-kernel-dev-aa91c7e4ab9b0842b7d7a7cbf8cca18b20df89b5.zip op-kernel-dev-aa91c7e4ab9b0842b7d7a7cbf8cca18b20df89b5.tar.gz | |
cifs: fix broken oplock handling
cifs_new_fileinfo() does not use the 'oplock' value from the callers. Instead,
it sets it to REQ_OPLOCK which seems wrong. We should be using the oplock value
obtained from the Server to set the inode's clientCanCacheAll or
clientCanCacheRead flags. Fix this by passing oplock from the callers to
cifs_new_fileinfo().
This change dates back to commit a6ce4932 (2.6.30-rc3). So, all the affected
versions will need this fix. Please Cc stable once reviewed and accepted.
Cc: Stable <stable@kernel.org>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/dir.c')
| -rw-r--r-- | fs/cifs/dir.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c index f9ed075..0f947bf 100644 --- a/fs/cifs/dir.c +++ b/fs/cifs/dir.c @@ -132,9 +132,9 @@ cifs_bp_rename_retry: struct cifsFileInfo * cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle, - struct file *file, struct vfsmount *mnt, unsigned int oflags) + struct file *file, struct vfsmount *mnt, unsigned int oflags, + __u32 oplock) { - int oplock = 0; struct cifsFileInfo *pCifsFile; struct cifsInodeInfo *pCifsInode; struct cifs_sb_info *cifs_sb = CIFS_SB(mnt->mnt_sb); @@ -143,9 +143,6 @@ cifs_new_fileinfo(struct inode *newinode, __u16 fileHandle, if (pCifsFile == NULL) return pCifsFile; - if (oplockEnabled) - oplock = REQ_OPLOCK; - pCifsFile->netfid = fileHandle; pCifsFile->pid = current->tgid; pCifsFile->pInode = igrab(newinode); @@ -468,7 +465,7 @@ cifs_create_set_dentry: } pfile_info = cifs_new_fileinfo(newinode, fileHandle, filp, - nd->path.mnt, oflags); + nd->path.mnt, oflags, oplock); if (pfile_info == NULL) { fput(filp); CIFSSMBClose(xid, tcon, fileHandle); @@ -729,7 +726,8 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry, cfile = cifs_new_fileinfo(newInode, fileHandle, filp, nd->path.mnt, - nd->intent.open.flags); + nd->intent.open.flags, + oplock); if (cfile == NULL) { fput(filp); CIFSSMBClose(xid, pTcon, fileHandle); |
