From 0409679d88a8ccd06397ceae1b6d08935198c756 Mon Sep 17 00:00:00 2001 From: Matthew Ahrens Date: Thu, 28 Feb 2019 17:57:47 -0800 Subject: Fix style of spl_kmem_cache_create() Fix indentation of code in ifdef's. Remove obsolete comment. Make if/else statements more readable by adding braces. Reviewed-by: Brian Behlendorf Reviewed-by: Tony Hutter Signed-off-by: Matthew Ahrens Closes #8459 --- module/spl/spl-kmem-cache.c | 69 ++++++++++++++++++++++----------------------- 1 file changed, 34 insertions(+), 35 deletions(-) (limited to 'module/spl') diff --git a/module/spl/spl-kmem-cache.c b/module/spl/spl-kmem-cache.c index 620f03ddf..44e112ccc 100644 --- a/module/spl/spl-kmem-cache.c +++ b/module/spl/spl-kmem-cache.c @@ -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); -- cgit v1.2.3