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authorBob Peterson <rpeterso@redhat.com>2020-05-23 08:13:50 -0500
committerAndreas Gruenbacher <agruenba@redhat.com>2020-06-05 16:44:29 +0200
commitea4e61c7f46d33fdf17580a925e47cc83570d658 (patch)
tree93a9f0b2349114db7705f69d524e57f056cb72dc /fs/gfs2
parent7e901d6e9519db4db0dd30a33ec172dd094cfb11 (diff)
downloadlinux-ea4e61c7f46d33fdf17580a925e47cc83570d658.tar.bz2
gfs2: introduce new gfs2_glock_assert_withdraw
Before this patch, asserts based on glocks did not print the glock with the error. This patch introduces a new macro, gfs2_glock_assert_withdraw which first prints the glock, then takes the assert. This also changes a few glock asserts to the new macro. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'fs/gfs2')
-rw-r--r--fs/gfs2/glock.c7
-rw-r--r--fs/gfs2/glock.h9
2 files changed, 13 insertions, 3 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index 9a5dadc93cfc..64541d8bf9ad 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -164,7 +164,7 @@ void gfs2_glock_free(struct gfs2_glock *gl)
{
struct gfs2_sbd *sdp = gl->gl_name.ln_sbd;
- BUG_ON(atomic_read(&gl->gl_revokes));
+ gfs2_glock_assert_withdraw(gl, atomic_read(&gl->gl_revokes) == 0);
rhashtable_remove_fast(&gl_hash_table, &gl->gl_node, ht_parms);
smp_mb();
wake_up_glock(gl);
@@ -626,7 +626,8 @@ __acquires(&gl->gl_lockref.lock)
*/
if ((atomic_read(&gl->gl_ail_count) != 0) &&
(!cmpxchg(&sdp->sd_log_error, 0, -EIO))) {
- gfs2_assert_warn(sdp, !atomic_read(&gl->gl_ail_count));
+ gfs2_glock_assert_warn(gl,
+ !atomic_read(&gl->gl_ail_count));
gfs2_dump_glock(NULL, gl, true);
}
glops->go_inval(gl, target == LM_ST_DEFERRED ? 0 : DIO_METADATA);
@@ -1836,7 +1837,7 @@ void gfs2_glock_finish_truncate(struct gfs2_inode *ip)
int ret;
ret = gfs2_truncatei_resume(ip);
- gfs2_assert_withdraw(gl->gl_name.ln_sbd, ret == 0);
+ gfs2_glock_assert_withdraw(gl, ret == 0);
spin_lock(&gl->gl_lockref.lock);
clear_bit(GLF_LOCK, &gl->gl_flags);
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index b8adaf80e4c5..1c547dff7c57 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -205,6 +205,15 @@ extern void gfs2_dump_glock(struct seq_file *seq, struct gfs2_glock *gl,
#define GLOCK_BUG_ON(gl,x) do { if (unlikely(x)) { \
gfs2_dump_glock(NULL, gl, true); \
BUG(); } } while(0)
+#define gfs2_glock_assert_warn(gl, x) do { if (unlikely(!(x))) { \
+ gfs2_dump_glock(NULL, gl, true); \
+ gfs2_assert_warn((gl)->gl_name.ln_sbd, (x)); } } \
+ while (0)
+#define gfs2_glock_assert_withdraw(gl, x) do { if (unlikely(!(x))) { \
+ gfs2_dump_glock(NULL, gl, true); \
+ gfs2_assert_withdraw((gl)->gl_name.ln_sbd, (x)); } } \
+ while (0)
+
extern __printf(2, 3)
void gfs2_print_dbg(struct seq_file *seq, const char *fmt, ...);