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Fix style of spl_kmem_cache_create()

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Fix indentation of code in ifdef's.
Remove obsolete comment.
Make if/else statements more readable by adding braces.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #8459
This commit is contained in:
Matthew Ahrens 2019-02-28 17:57:47 -08:00 committed by Brian Behlendorf
parent 8133679ff0
commit 0409679d88
1 changed files with 34 additions and 35 deletions
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69
module/spl/spl-kmem-cache.c
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@ -858,15 +858,15 @@ spl_magazine_destroy(spl_kmem_cache_t *skc)
* priv cache private data for ctor/dtor/reclaim
* vmp unused must be NULL
* flags
* KMC_NOTOUCH Disable cache object aging (unsupported)
* KMC_NODEBUG Disable debugging (unsupported)
* KMC_NOHASH Disable hashing (unsupported)
* KMC_QCACHE Disable qcache (unsupported)
* KMC_NOMAGAZINE Enabled for kmem/vmem, Disabled for Linux slab
* KMC_KMEM Force kmem backed cache
* KMC_VMEM Force vmem backed cache
* KMC_KMEM Force SPL kmem backed cache
* KMC_VMEM Force SPL vmem backed cache
* KMC_SLAB Force Linux slab backed cache
* KMC_OFFSLAB Locate objects off the slab
* KMC_NOTOUCH unsupported
* KMC_NODEBUG unsupported
* KMC_NOHASH unsupported
* KMC_QCACHE unsupported
* KMC_NOMAGAZINE unsupported
*/
spl_kmem_cache_t *
spl_kmem_cache_create(char *name, size_t size, size_t align,
@ -949,29 +949,27 @@ spl_kmem_cache_create(char *name, size_t size, size_t align,
*/
if (!(skc->skc_flags & (KMC_KMEM | KMC_VMEM | KMC_SLAB))) {
/*
* Objects smaller than spl_kmem_cache_slab_limit can
* use the Linux slab for better space-efficiency. By
* default this functionality is disabled until its
* performance characteristics are fully understood.
*/
if (spl_kmem_cache_slab_limit &&
size <= (size_t)spl_kmem_cache_slab_limit)
size <= (size_t)spl_kmem_cache_slab_limit) {
/*
* Objects smaller than spl_kmem_cache_slab_limit can
* use the Linux slab for better space-efficiency.
*/
skc->skc_flags |= KMC_SLAB;
/*
* Small objects, less than spl_kmem_cache_kmem_limit per
* object should use kmem because their slabs are small.
*/
else if (spl_obj_size(skc) <= spl_kmem_cache_kmem_limit)
} else if (spl_obj_size(skc) <= spl_kmem_cache_kmem_limit) {
/*
* Small objects, less than spl_kmem_cache_kmem_limit
* per object should use kmem because their slabs are
* small.
*/
skc->skc_flags |= KMC_KMEM;
/*
* All other objects are considered large and are placed
* on vmem backed slabs.
*/
else
} else {
/*
* All other objects are considered large and are
* placed on vmem backed slabs.
*/
skc->skc_flags |= KMC_VMEM;
}
}
/*
@ -1003,15 +1001,15 @@ spl_kmem_cache_create(char *name, size_t size, size_t align,
#endif
#if defined(HAVE_KMEM_CACHE_CREATE_USERCOPY)
/*
* Newer grsec patchset uses kmem_cache_create_usercopy()
* instead of SLAB_USERCOPY flag
*/
skc->skc_linux_cache = kmem_cache_create_usercopy(
skc->skc_name, size, align, slabflags, 0, size, NULL);
/*
* Newer grsec patchset uses kmem_cache_create_usercopy()
* instead of SLAB_USERCOPY flag
*/
skc->skc_linux_cache = kmem_cache_create_usercopy(
skc->skc_name, size, align, slabflags, 0, size, NULL);
#else
skc->skc_linux_cache = kmem_cache_create(
skc->skc_name, size, align, slabflags, NULL);
skc->skc_linux_cache = kmem_cache_create(
skc->skc_name, size, align, slabflags, NULL);
#endif
if (skc->skc_linux_cache == NULL) {
rc = ENOMEM;
@ -1026,10 +1024,11 @@ spl_kmem_cache_create(char *name, size_t size, size_t align,
skc->skc_flags |= KMC_NOMAGAZINE;
}
if (spl_kmem_cache_expire & KMC_EXPIRE_AGE)
if (spl_kmem_cache_expire & KMC_EXPIRE_AGE) {
skc->skc_taskqid = taskq_dispatch_delay(spl_kmem_cache_taskq,
spl_cache_age, skc, TQ_SLEEP,
ddi_get_lbolt() + skc->skc_delay / 3 * HZ);
}
down_write(&spl_kmem_cache_sem);
list_add_tail(&skc->skc_list, &spl_kmem_cache_list);