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GFS2: Fix up some sparse warnings

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This patch cleans up various pieces of GFS2 to avoid sparse errors.
This doesn't fix them all, but it fixes several. The first error,
in function glock_hash_walk was a genuine bug where the rhashtable
could be started and not stopped.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
This commit is contained in:
Bob Peterson 2017-08-18 09:15:13 -05:00
parent 561b796987
commit 27c3b415f6
4 changed files with 9 additions and 6 deletions
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9
fs/gfs2/glock.c
View File

@ -1550,14 +1550,15 @@ static void glock_hash_walk(glock_examiner examiner, const struct gfs2_sbd *sdp)
do {
gl = ERR_PTR(rhashtable_walk_start(&iter));
if (gl)
continue;
if (IS_ERR(gl))
goto walk_stop;
while ((gl = rhashtable_walk_next(&iter)) && !IS_ERR(gl))
if ((gl->gl_name.ln_sbd == sdp) &&
if (gl->gl_name.ln_sbd == sdp &&
lockref_get_not_dead(&gl->gl_lockref))
examiner(gl);
walk_stop:
rhashtable_walk_stop(&iter);
} while (cond_resched(), gl == ERR_PTR(-EAGAIN));
@ -1940,6 +1941,7 @@ static void gfs2_glock_iter_next(struct gfs2_glock_iter *gi)
}
static void *gfs2_glock_seq_start(struct seq_file *seq, loff_t *pos)
__acquires(RCU)
{
struct gfs2_glock_iter *gi = seq->private;
loff_t n = *pos;
@ -1972,6 +1974,7 @@ static void *gfs2_glock_seq_next(struct seq_file *seq, void *iter_ptr,
}
static void gfs2_glock_seq_stop(struct seq_file *seq, void *iter_ptr)
__releases(RCU)
{
struct gfs2_glock_iter *gi = seq->private;

4
fs/gfs2/lock_dlm.c
View File

@ -23,8 +23,6 @@
#include "sys.h"
#include "trace_gfs2.h"
extern struct workqueue_struct *gfs2_control_wq;
/**
* gfs2_update_stats - Update time based stats
* @mv: Pointer to mean/variance structure to update
@ -1176,7 +1174,7 @@ static void gdlm_recovery_result(struct gfs2_sbd *sdp, unsigned int jid,
spin_unlock(&ls->ls_recover_spin);
}
const struct dlm_lockspace_ops gdlm_lockspace_ops = {
static const struct dlm_lockspace_ops gdlm_lockspace_ops = {
.recover_prep = gdlm_recover_prep,
.recover_slot = gdlm_recover_slot,
.recover_done = gdlm_recover_done,

1
fs/gfs2/util.h
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@ -151,6 +151,7 @@ extern struct kmem_cache *gfs2_rgrpd_cachep;
extern struct kmem_cache *gfs2_quotad_cachep;
extern struct kmem_cache *gfs2_qadata_cachep;
extern mempool_t *gfs2_page_pool;
extern struct workqueue_struct *gfs2_control_wq;
static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
unsigned int *p)

1
fs/gfs2/xattr.c
View File

@ -25,6 +25,7 @@
#include "meta_io.h"
#include "quota.h"
#include "rgrp.h"
#include "super.h"
#include "trans.h"
#include "util.h"