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jbd2: Mark jbd2 slabs as SLAB_TEMPORARY

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This patch marks slab allocations by jbd2 as short-lived in support of
Mel Gorman's "Group short-lived and reclaimable kernel allocations"
patch.  (Ported from similar changes made to fs/jbd/journal.c and
fs/jbd/revoke.c in Mel's patch.)

Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Mingming Cao 2008-01-28 23:58:27 -05:00 committed by Theodore Ts'o
parent 7b7510662f
commit 77160957e2
2 changed files with 6 additions and 4 deletions
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4
fs/jbd2/journal.c
View file

@ -1973,7 +1973,7 @@ static int journal_init_jbd2_journal_head_cache(void)
jbd2_journal_head_cache = kmem_cache_create("jbd2_journal_head",
sizeof(struct journal_head),
0, /* offset */
0, /* flags */
SLAB_TEMPORARY, /* flags */
NULL); /* ctor */
retval = 0;
if (jbd2_journal_head_cache == 0) {
@ -2269,7 +2269,7 @@ static int __init journal_init_handle_cache(void)
jbd2_handle_cache = kmem_cache_create("jbd2_journal_handle",
sizeof(handle_t),
0, /* offset */
0, /* flags */
SLAB_TEMPORARY, /* flags */
NULL); /* ctor */
if (jbd2_handle_cache == NULL) {
printk(KERN_EMERG "JBD: failed to create handle cache\n");

6
fs/jbd2/revoke.c
View file

@ -171,13 +171,15 @@ int __init jbd2_journal_init_revoke_caches(void)
{
jbd2_revoke_record_cache = kmem_cache_create("jbd2_revoke_record",
sizeof(struct jbd2_revoke_record_s),
0, SLAB_HWCACHE_ALIGN, NULL);
0,
SLAB_HWCACHE_ALIGN|SLAB_TEMPORARY,
NULL);
if (jbd2_revoke_record_cache == 0)
return -ENOMEM;
jbd2_revoke_table_cache = kmem_cache_create("jbd2_revoke_table",
sizeof(struct jbd2_revoke_table_s),
0, 0, NULL);
0, SLAB_TEMPORARY, NULL);
if (jbd2_revoke_table_cache == 0) {
kmem_cache_destroy(jbd2_revoke_record_cache);
jbd2_revoke_record_cache = NULL;