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authorChristoph Lameter <clameter@sgi.com>2007-05-06 14:49:57 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-07 12:12:55 -0700
commit0a31bd5f2bbb6473ef9d24f0063ca91cfa678b64 (patch)
treea945e829bf6bf7a93bf844b2ee9f2a3a2fa17c5d /kernel
parent5af60839909b8e3b28ca7cd7912fa0b23475617f (diff)
downloadlinux-2.6.34-ux500-0a31bd5f2bbb6473ef9d24f0063ca91cfa678b64.tar.gz
KMEM_CACHE(): simplify slab cache creation
This patch provides a new macro KMEM_CACHE(<struct>, <flags>) to simplify slab creation. KMEM_CACHE creates a slab with the name of the struct, with the size of the struct and with the alignment of the struct. Additional slab flags may be specified if necessary. Example struct test_slab { int a,b,c; struct list_head; } __cacheline_aligned_in_smp; test_slab_cache = KMEM_CACHE(test_slab, SLAB_PANIC) will create a new slab named "test_slab" of the size sizeof(struct test_slab) and aligned to the alignment of test slab. If it fails then we panic. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/delayacct.c6
-rw-r--r--kernel/pid.c4
-rw-r--r--kernel/signal.c6
-rw-r--r--kernel/taskstats.c4
4 files changed, 4 insertions, 16 deletions
diff --git a/kernel/delayacct.c b/kernel/delayacct.c
index 766d5912b26..c0148ae992c 100644
--- a/kernel/delayacct.c
+++ b/kernel/delayacct.c
@@ -31,11 +31,7 @@ __setup("nodelayacct", delayacct_setup_disable);
void delayacct_init(void)
{
- delayacct_cache = kmem_cache_create("delayacct_cache",
- sizeof(struct task_delay_info),
- 0,
- SLAB_PANIC,
- NULL, NULL);
+ delayacct_cache = KMEM_CACHE(task_delay_info, SLAB_PANIC);
delayacct_tsk_init(&init_task);
}
diff --git a/kernel/pid.c b/kernel/pid.c
index 78f2aee90f5..9c80bc23d6b 100644
--- a/kernel/pid.c
+++ b/kernel/pid.c
@@ -412,7 +412,5 @@ void __init pidmap_init(void)
set_bit(0, init_pid_ns.pidmap[0].page);
atomic_dec(&init_pid_ns.pidmap[0].nr_free);
- pid_cachep = kmem_cache_create("pid", sizeof(struct pid),
- __alignof__(struct pid),
- SLAB_PANIC, NULL, NULL);
+ pid_cachep = KMEM_CACHE(pid, SLAB_PANIC);
}
diff --git a/kernel/signal.c b/kernel/signal.c
index 3670225ecbc..2b4087d545a 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2636,9 +2636,5 @@ __attribute__((weak)) const char *arch_vma_name(struct vm_area_struct *vma)
void __init signals_init(void)
{
- sigqueue_cachep =
- kmem_cache_create("sigqueue",
- sizeof(struct sigqueue),
- __alignof__(struct sigqueue),
- SLAB_PANIC, NULL, NULL);
+ sigqueue_cachep = KMEM_CACHE(sigqueue, SLAB_PANIC);
}
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index ad7d2392cb0..906cae77158 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -524,9 +524,7 @@ void __init taskstats_init_early(void)
{
unsigned int i;
- taskstats_cache = kmem_cache_create("taskstats_cache",
- sizeof(struct taskstats),
- 0, SLAB_PANIC, NULL, NULL);
+ taskstats_cache = KMEM_CACHE(taskstats, SLAB_PANIC);
for_each_possible_cpu(i) {
INIT_LIST_HEAD(&(per_cpu(listener_array, i).list));
init_rwsem(&(per_cpu(listener_array, i).sem));