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authorMingming Cao <cmm@us.ibm.com>2007-10-16 18:38:25 -0400
committerTheodore Ts'o <tytso@mit.edu>2007-10-17 18:49:56 -0400
commitaf1e76d6b3f37cb89d9192eaf83588adaf4728eb (patch)
tree8b30dd421361a61c3f2e9c96bd574986b4e78c9e /include/linux/jbd2.h
parentc089d490dfbf53bc0893dc9ef57cf3ee6448314d (diff)
downloadop-kernel-dev-af1e76d6b3f37cb89d9192eaf83588adaf4728eb.zip
op-kernel-dev-af1e76d6b3f37cb89d9192eaf83588adaf4728eb.tar.gz
JBD2: jbd2 slab allocation cleanups
JBD2: Replace slab allocations with page allocations JBD2 allocate memory for committed_data and frozen_data from slab. However JBD2 should not pass slab pages down to the block layer. Use page allocator pages instead. This will also prepare JBD for the large blocksize patchset. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Diffstat (limited to 'include/linux/jbd2.h')
-rw-r--r--include/linux/jbd2.h18
1 files changed, 13 insertions, 5 deletions
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 260d6d7..e367792 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -72,14 +72,22 @@ extern u8 jbd2_journal_enable_debug;
#endif
extern void * __jbd2_kmalloc (const char *where, size_t size, gfp_t flags, int retry);
-extern void * jbd2_slab_alloc(size_t size, gfp_t flags);
-extern void jbd2_slab_free(void *ptr, size_t size);
-
#define jbd_kmalloc(size, flags) \
__jbd2_kmalloc(__FUNCTION__, (size), (flags), journal_oom_retry)
#define jbd_rep_kmalloc(size, flags) \
__jbd2_kmalloc(__FUNCTION__, (size), (flags), 1)
+
+static inline void *jbd2_alloc(size_t size, gfp_t flags)
+{
+ return (void *)__get_free_pages(flags, get_order(size));
+}
+
+static inline void jbd2_free(void *ptr, size_t size)
+{
+ free_pages((unsigned long)ptr, get_order(size));
+};
+
#define JBD2_MIN_JOURNAL_BLOCKS 1024
#ifdef __KERNEL__
@@ -959,12 +967,12 @@ void jbd2_journal_put_journal_head(struct journal_head *jh);
*/
extern struct kmem_cache *jbd2_handle_cache;
-static inline handle_t *jbd_alloc_handle(gfp_t gfp_flags)
+static inline handle_t *jbd2_alloc_handle(gfp_t gfp_flags)
{
return kmem_cache_alloc(jbd2_handle_cache, gfp_flags);
}
-static inline void jbd_free_handle(handle_t *handle)
+static inline void jbd2_free_handle(handle_t *handle)
{
kmem_cache_free(jbd2_handle_cache, handle);
}
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