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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2011-07-11 16:40:59 +0000
committerGreg Kroah-Hartman <gregkh@suse.de>2011-10-03 11:40:18 -0700
commite38b21e76bb89bba3e59da494de586aac23ad430 (patch)
tree79ac1f29f97ffafc6c31ba3a8dbffcc9c9462572 /fs/9p/v9fs.h
parenta0be78ef93e0656339bf14feddc0e8afb2a86894 (diff)
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fs/9p: When doing inode lookup compare qid details and inode mode bits.
commit fd2421f54423f307ecd31bdebdca6bc317e0c492 upstream. This make sure we don't use wrong inode from the inode hash. The inode number of the file deleted is reused by the next file system object created and if we only use inode number for inode hash lookup we could end up with wrong struct inode. Also compare inode generation number. Not all Linux file system provide st_gen in userspace. So it could be 0; Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/9p/v9fs.h')
-rw-r--r--fs/9p/v9fs.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h
index e5ebedf..5d7392e 100644
--- a/fs/9p/v9fs.h
+++ b/fs/9p/v9fs.h
@@ -125,8 +125,8 @@ struct v9fs_inode {
#ifdef CONFIG_9P_FSCACHE
spinlock_t fscache_lock;
struct fscache_cookie *fscache;
- struct p9_qid *fscache_key;
#endif
+ struct p9_qid qid;
unsigned int cache_validity;
struct p9_fid *writeback_fid;
struct mutex v_mutex;