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| author | Aneesh Kumar K.V | 2011-03-08 12:09:46 +0100 |
|---|---|---|
| committer | Eric Van Hensbergen | 2011-03-22 21:43:35 +0100 |
| commit | 5a7e0a8cf50cf905403f5a498e86d1f97cfcf51b (patch) | |
| tree | 3f20f98db76f7a221f397630a03e6089c1208510 /fs/9p/v9fs.h | |
| parent | Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/msz... (diff) | |
| download | kernel-qcow2-linux-5a7e0a8cf50cf905403f5a498e86d1f97cfcf51b.tar.gz kernel-qcow2-linux-5a7e0a8cf50cf905403f5a498e86d1f97cfcf51b.tar.xz kernel-qcow2-linux-5a7e0a8cf50cf905403f5a498e86d1f97cfcf51b.zip | |
fs/9p: Fix race in initializing writeback fid
When two process open the same file we can end up with both of them
allocating the writeback_fid. Add a new mutex which can be used
for synchronizing v9fs_inode member values.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'fs/9p/v9fs.h')
| -rw-r--r-- | fs/9p/v9fs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/9p/v9fs.h b/fs/9p/v9fs.h index bd8496db135b..89657e865162 100644 --- a/fs/9p/v9fs.h +++ b/fs/9p/v9fs.h @@ -130,6 +130,7 @@ struct v9fs_inode { #endif unsigned int cache_validity; struct p9_fid *writeback_fid; + struct mutex v_mutex; struct inode vfs_inode; }; |