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| author | Ingo Molnar <mingo@elte.hu> | 2008-10-19 19:04:47 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-19 19:04:47 +0200 |
| commit | 3e10e879a8c334a5927d800a3663a24d562cfa31 (patch) | |
| tree | 5d18bc7e38c986a044e99aa0d0a4aff4931ec7d0 /fs/ocfs2/stackglue.c | |
| parent | 98d9c66ab07471006fd7910cb16453581c41a3e7 (diff) | |
| parent | 0cfd81031a26717fe14380d18275f8e217571615 (diff) | |
| download | kernel-crypto-3e10e879a8c334a5927d800a3663a24d562cfa31.tar.gz kernel-crypto-3e10e879a8c334a5927d800a3663a24d562cfa31.tar.xz kernel-crypto-3e10e879a8c334a5927d800a3663a24d562cfa31.zip | |
Merge branch 'linus' into tracing-v28-for-linus-v3
Conflicts:
init/main.c
kernel/module.c
scripts/bootgraph.pl
Diffstat (limited to 'fs/ocfs2/stackglue.c')
| -rw-r--r-- | fs/ocfs2/stackglue.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c index 07f348b8d72..68b668b0e60 100644 --- a/fs/ocfs2/stackglue.c +++ b/fs/ocfs2/stackglue.c @@ -288,6 +288,26 @@ void ocfs2_dlm_dump_lksb(union ocfs2_dlm_lksb *lksb) } EXPORT_SYMBOL_GPL(ocfs2_dlm_dump_lksb); +int ocfs2_stack_supports_plocks(void) +{ + return active_stack && active_stack->sp_ops->plock; +} +EXPORT_SYMBOL_GPL(ocfs2_stack_supports_plocks); + +/* + * ocfs2_plock() can only be safely called if + * ocfs2_stack_supports_plocks() returned true + */ +int ocfs2_plock(struct ocfs2_cluster_connection *conn, u64 ino, + struct file *file, int cmd, struct file_lock *fl) +{ + WARN_ON_ONCE(active_stack->sp_ops->plock == NULL); + if (active_stack->sp_ops->plock) + return active_stack->sp_ops->plock(conn, ino, file, cmd, fl); + return -EOPNOTSUPP; +} +EXPORT_SYMBOL_GPL(ocfs2_plock); + int ocfs2_cluster_connect(const char *stack_name, const char *group, int grouplen, |