aboutsummaryrefslogtreecommitdiff
path: root/fs/cifs/file.c
diff options
context:
space:
mode:
authorJeff Layton <jlayton@redhat.com>2009-09-12 11:54:28 -0400
committerSteve French <sfrench@us.ibm.com>2009-09-15 19:45:03 +0000
commit590a3fe0e18473a55b0ff48548ba87a2010d7730 (patch)
tree0e5fdfa70ee40a10a5b0df3b85cef3baa0d1b2c6 /fs/cifs/file.c
parent20d1752f3d6bd32beb90949559e0d14a0b234445 (diff)
cifs: fix oplock request handling in posix codepath
cifs_posix_open takes a "poplock" argument that's intended to be used in the actual posix open call to set the "Flags" field. It ignores this value however and declares an "oplock" parameter on the stack that it passes uninitialized to the CIFSPOSIXOpen function. Not only does this mean that the oplock request flags are bogus, but the result that's expected to be in that variable is unchanged. Fix this, and also clean up the type of the oplock parameter used. Since it's expected to be __u32, we should use that everywhere and not implicitly cast it from a signed type. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
Diffstat (limited to 'fs/cifs/file.c')
-rw-r--r--fs/cifs/file.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index fa7beac8b80..225d127c960 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -123,9 +123,11 @@ static inline int cifs_get_disposition(unsigned int flags)
}
/* all arguments to this function must be checked for validity in caller */
-static inline int cifs_posix_open_inode_helper(struct inode *inode,
- struct file *file, struct cifsInodeInfo *pCifsInode,
- struct cifsFileInfo *pCifsFile, int oplock, u16 netfid)
+static inline int
+cifs_posix_open_inode_helper(struct inode *inode, struct file *file,
+ struct cifsInodeInfo *pCifsInode,
+ struct cifsFileInfo *pCifsFile, __u32 oplock,
+ u16 netfid)
{
write_lock(&GlobalSMBSeslock);
@@ -279,7 +281,8 @@ client_can_cache:
int cifs_open(struct inode *inode, struct file *file)
{
int rc = -EACCES;
- int xid, oplock;
+ int xid;
+ __u32 oplock;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *tcon;
struct cifsFileInfo *pCifsFile;
@@ -474,7 +477,8 @@ static int cifs_relock_file(struct cifsFileInfo *cifsFile)
static int cifs_reopen_file(struct file *file, bool can_flush)
{
int rc = -EACCES;
- int xid, oplock;
+ int xid;
+ __u32 oplock;
struct cifs_sb_info *cifs_sb;
struct cifsTconInfo *tcon;
struct cifsFileInfo *pCifsFile;