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| author | Steven Whitehouse <swhiteho@redhat.com> | 2012-10-15 10:57:02 +0100 |
|---|---|---|
| committer | Steven Whitehouse <swhiteho@redhat.com> | 2012-11-07 13:31:07 +0000 |
| commit | 8eae1ca0034cce78a24738087a32adb1ddb66aa7 (patch) | |
| tree | f43287fa4232a5fdcf78eb74a004ec986c261807 /fs/gfs2/glock.h | |
| parent | 0e4a43ed08e2f44aa7b96aa95d0a540d675483e1 (diff) | |
| download | linux-8eae1ca0034cce78a24738087a32adb1ddb66aa7.tar.bz2 | |
GFS2: Review bug traps in glops.c
Two of the bug traps here could really be warnings. The others are
converted from BUG() to GLOCK_BUG_ON() since we'll most likely
need to know the glock state in order to debug any issues which
arise. As a result of this, __dump_glock has to be renamed and
is no longer static.
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Diffstat (limited to 'fs/gfs2/glock.h')
| -rw-r--r-- | fs/gfs2/glock.h | 54 |
1 files changed, 27 insertions, 27 deletions
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h index 307ac31df781..fd580b7861d5 100644 --- a/fs/gfs2/glock.h +++ b/fs/gfs2/glock.h @@ -178,33 +178,33 @@ static inline struct address_space *gfs2_glock2aspace(struct gfs2_glock *gl) return NULL; } -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); -void gfs2_glock_put_nolock(struct gfs2_glock *gl); -void gfs2_glock_put(struct gfs2_glock *gl); -void gfs2_holder_init(struct gfs2_glock *gl, unsigned int state, unsigned flags, - struct gfs2_holder *gh); -void gfs2_holder_reinit(unsigned int state, unsigned flags, - struct gfs2_holder *gh); -void gfs2_holder_uninit(struct gfs2_holder *gh); -int gfs2_glock_nq(struct gfs2_holder *gh); -int gfs2_glock_poll(struct gfs2_holder *gh); -int gfs2_glock_wait(struct gfs2_holder *gh); -void gfs2_glock_dq(struct gfs2_holder *gh); -void gfs2_glock_dq_wait(struct gfs2_holder *gh); - -void gfs2_glock_dq_uninit(struct gfs2_holder *gh); -int gfs2_glock_nq_num(struct gfs2_sbd *sdp, - u64 number, const struct gfs2_glock_operations *glops, - unsigned int state, int flags, struct gfs2_holder *gh); - -int gfs2_glock_nq_m(unsigned int num_gh, struct gfs2_holder *ghs); -void gfs2_glock_dq_m(unsigned int num_gh, struct gfs2_holder *ghs); -void gfs2_glock_dq_uninit_m(unsigned int num_gh, struct gfs2_holder *ghs); - -__printf(2, 3) +extern int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number, + const struct gfs2_glock_operations *glops, + int create, struct gfs2_glock **glp); +extern void gfs2_glock_hold(struct gfs2_glock *gl); +extern void gfs2_glock_put_nolock(struct gfs2_glock *gl); +extern void gfs2_glock_put(struct gfs2_glock *gl); +extern void gfs2_holder_init(struct gfs2_glock *gl, unsigned int state, + unsigned flags, struct gfs2_holder *gh); +extern void gfs2_holder_reinit(unsigned int state, unsigned flags, + struct gfs2_holder *gh); +extern void gfs2_holder_uninit(struct gfs2_holder *gh); +extern int gfs2_glock_nq(struct gfs2_holder *gh); +extern int gfs2_glock_poll(struct gfs2_holder *gh); +extern int gfs2_glock_wait(struct gfs2_holder *gh); +extern void gfs2_glock_dq(struct gfs2_holder *gh); +extern void gfs2_glock_dq_wait(struct gfs2_holder *gh); +extern void gfs2_glock_dq_uninit(struct gfs2_holder *gh); +extern int gfs2_glock_nq_num(struct gfs2_sbd *sdp, u64 number, + const struct gfs2_glock_operations *glops, + unsigned int state, int flags, + struct gfs2_holder *gh); +extern int gfs2_glock_nq_m(unsigned int num_gh, struct gfs2_holder *ghs); +extern void gfs2_glock_dq_m(unsigned int num_gh, struct gfs2_holder *ghs); +extern void gfs2_glock_dq_uninit_m(unsigned int num_gh, struct gfs2_holder *ghs); +extern int gfs2_dump_glock(struct seq_file *seq, const struct gfs2_glock *gl); +#define GLOCK_BUG_ON(gl,x) do { if (unlikely(x)) { gfs2_dump_glock(NULL, gl); BUG(); } } while(0) +extern __printf(2, 3) void gfs2_print_dbg(struct seq_file *seq, const char *fmt, ...); /** |