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authorLinus Torvalds <torvalds@linux-foundation.org>2008-04-18 10:02:46 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-04-18 10:02:46 -0700
commitef38ff9d372d4fe69e415370939a0f1fb5783af1 (patch)
treefcf38cbbd55298606a695adaf7f2ea97f3185c19 /fs/gfs2/glock.h
parentfda31d7d4b5a9c663ac3ed1ba244018a88deecaf (diff)
parent62be1f71677c53d5e51223807a06ac9052f49b0f (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (49 commits) [GFS2] fix assertion in log_refund() [GFS2] fix GFP_KERNEL misuses [GFS2] test for IS_ERR rather than 0 [GFS2] Invalidate cache at correct point [GFS2] fs/gfs2/recovery.c: suppress warnings [GFS2] Faster gfs2_bitfit algorithm [GFS2] Streamline quota lock/check for no-quota case [GFS2] Remove drop of module ref where not needed [GFS2] gfs2_adjust_quota has broken unstuffing code [GFS2] possible null pointer dereference fixup [GFS2] Need to ensure that sector_t is 64bits for GFS2 [GFS2] re-support special inode [GFS2] remove gfs2_dev_iops [GFS2] fix file_system_type leak on gfs2meta mount [GFS2] Allow bmap to allocate extents [GFS2] Fix a page lock / glock deadlock [GFS2] proper extern for gfs2/locking/dlm/mount.c:gdlm_ops [GFS2] gfs2/ops_file.c should #include "ops_inode.h" [GFS2] be*_add_cpu conversion [GFS2] Fix bug where we called drop_bh incorrectly ...
Diffstat (limited to 'fs/gfs2/glock.h')
-rw-r--r--fs/gfs2/glock.h14
1 files changed, 6 insertions, 8 deletions
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index 2f9c6d136b3..cdad3e6f815 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -32,24 +32,23 @@
#define GLR_TRYFAILED 13
#define GLR_CANCELED 14
-static inline int gfs2_glock_is_locked_by_me(struct gfs2_glock *gl)
+static inline struct gfs2_holder *gfs2_glock_is_locked_by_me(struct gfs2_glock *gl)
{
struct gfs2_holder *gh;
- int locked = 0;
struct pid *pid;
/* Look in glock's list of holders for one with current task as owner */
spin_lock(&gl->gl_spin);
pid = task_pid(current);
list_for_each_entry(gh, &gl->gl_holders, gh_list) {
- if (gh->gh_owner_pid == pid) {
- locked = 1;
- break;
- }
+ if (gh->gh_owner_pid == pid)
+ goto out;
}
+ gh = NULL;
+out:
spin_unlock(&gl->gl_spin);
- return locked;
+ return gh;
}
static inline int gfs2_glock_is_held_excl(struct gfs2_glock *gl)
@@ -79,7 +78,6 @@ static inline int gfs2_glock_is_blocking(struct gfs2_glock *gl)
int gfs2_glock_get(struct gfs2_sbd *sdp,
u64 number, const struct gfs2_glock_operations *glops,
int create, struct gfs2_glock **glp);
-void gfs2_glock_hold(struct gfs2_glock *gl);
int gfs2_glock_put(struct gfs2_glock *gl);
void gfs2_holder_init(struct gfs2_glock *gl, unsigned int state, unsigned flags,
struct gfs2_holder *gh);