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Sleep uninteruptibly, waking up early may result in a crash

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This commit is contained in:
Brian Behlendorf 2009-01-22 09:58:48 -08:00
parent 511176398c
commit 3f4126739d
2 changed files with 14 additions and 13 deletions
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23
module/splat/splat-kmem.c
View File

@ -309,31 +309,32 @@ splat_kmem_cache_size_test(struct file *file, void *arg,
NULL, &kcp, NULL, flags);
if (!cache) {
splat_vprint(file, name,
"Unable to create '%s'\n", SPLAT_KMEM_CACHE_NAME);
"Unable to create '%s'\n",
SPLAT_KMEM_CACHE_NAME);
return -ENOMEM;
}
kcd = kmem_cache_alloc(cache, KM_SLEEP);
if (!kcd) {
splat_vprint(file, name,
"Unable to allocate from '%s'\n",
SPLAT_KMEM_CACHE_NAME);
"Unable to allocate from '%s'\n",
SPLAT_KMEM_CACHE_NAME);
rc = -EINVAL;
goto out_free;
}
if (!kcd->kcd_flag) {
splat_vprint(file, name,
"Failed to run contructor for '%s'\n",
SPLAT_KMEM_CACHE_NAME);
"Failed to run contructor for '%s'\n",
SPLAT_KMEM_CACHE_NAME);
rc = -EINVAL;
goto out_free;
}
if (kcd->kcd_magic != kcp.kcp_magic) {
splat_vprint(file, name,
"Failed to pass private data to constructor "
"for '%s'\n", SPLAT_KMEM_CACHE_NAME);
"Failed to pass private data to constructor "
"for '%s'\n", SPLAT_KMEM_CACHE_NAME);
rc = -EINVAL;
goto out_free;
}
@ -346,14 +347,14 @@ splat_kmem_cache_size_test(struct file *file, void *arg,
kmem_cache_destroy(cache);
if (kcp.kcp_count) {
splat_vprint(file, name,
"Failed to run destructor on all slab objects "
"for '%s'\n", SPLAT_KMEM_CACHE_NAME);
"Failed to run destructor on all slab objects "
"for '%s'\n", SPLAT_KMEM_CACHE_NAME);
rc = -EINVAL;
}
splat_vprint(file, name,
"Successfully ran ctors/dtors for %d elements in '%s'\n",
max, SPLAT_KMEM_CACHE_NAME);
"Successfully ran ctors/dtors for %d elements in '%s'\n",
max, SPLAT_KMEM_CACHE_NAME);
return rc;

4
module/splat/splat-rwlock.c
View File

@ -84,7 +84,7 @@ typedef struct rw_thr {
static inline void
splat_rwlock_sleep(signed long delay)
{
set_current_state(TASK_INTERRUPTIBLE);
set_current_state(TASK_UNINTERRUPTIBLE);
schedule_timeout(delay);
}
@ -431,7 +431,7 @@ splat_rwlock_test2(struct file *file, void *arg)
while (splat_rwlock_lock_and_test(&rwv.rw_priv_lock,
atomic_read(&rwv.rw_acquired) != 0 ||
atomic_read(&rwv.rw_waiters) != 0)) {
splat_rwlock_sleep(1 * HZ);
splat_rwlock_sleep(HZ);
}
/* If any of the write threads ever acquired the lock