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| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-11-13 16:23:44 -0500 |
|---|---|---|
| committer | Trond Myklebust <Trond.Myklebust@netapp.com> | 2006-12-06 10:46:26 -0500 |
| commit | 8aca67f0ae2d8811165c22326825a645cc8e1b48 (patch) | |
| tree | 19e82f4bc7b4f865a9dcf4744e7c224ea517ba10 /include/linux/nfs_fs.h | |
| parent | e6b3c4db6fbcd0d33720696f37790d6b8be12313 (diff) | |
| download | linux-8aca67f0ae2d8811165c22326825a645cc8e1b48.tar.gz linux-8aca67f0ae2d8811165c22326825a645cc8e1b48.tar.bz2 linux-8aca67f0ae2d8811165c22326825a645cc8e1b48.zip | |
SUNRPC: Fix a potential race in rpc_wake_up_task()
Use RCU to ensure that we can safely call rpc_finish_wakeup after we've
called __rpc_do_wake_up_task. If not, there is a theoretical race, in which
the rpc_task finishes executing, and gets freed first.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'include/linux/nfs_fs.h')
| -rw-r--r-- | include/linux/nfs_fs.h | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h index 625ffea98561..02f38189d180 100644 --- a/include/linux/nfs_fs.h +++ b/include/linux/nfs_fs.h @@ -428,11 +428,6 @@ extern int nfs_updatepage(struct file *, struct page *, unsigned int, unsigned extern int nfs_writeback_done(struct rpc_task *, struct nfs_write_data *); extern void nfs_writedata_release(void *); -#if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4) -struct nfs_write_data *nfs_commit_alloc(void); -void nfs_commit_free(struct nfs_write_data *p); -#endif - /* * Try to write back everything synchronously (but check the * return value!) @@ -440,6 +435,8 @@ void nfs_commit_free(struct nfs_write_data *p); extern int nfs_sync_inode_wait(struct inode *, unsigned long, unsigned int, int); #if defined(CONFIG_NFS_V3) || defined(CONFIG_NFS_V4) extern int nfs_commit_inode(struct inode *, int); +extern struct nfs_write_data *nfs_commit_alloc(void); +extern void nfs_commit_free(struct nfs_write_data *wdata); extern void nfs_commit_release(void *wdata); #else static inline int |