From ea817398e68dfa25612229fda7fc74580cf915fb Mon Sep 17 00:00:00 2001 From: Badari Pulavarty Date: Sun, 27 Aug 2006 01:23:52 -0700 Subject: [PATCH] Manage jbd allocations from its own slabs JBD currently allocates commit and frozen buffers from slabs. With CONFIG_SLAB_DEBUG, its possible for an allocation to cross the page boundary causing IO problems. https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=200127 So, instead of allocating these from regular slabs - manage allocation from its own slabs and disable slab debug for these slabs. [akpm@osdl.org: cleanups] Signed-off-by: Badari Pulavarty Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/jbd.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include') diff --git a/include/linux/jbd.h b/include/linux/jbd.h index 20eb34403d0..a04c154c520 100644 --- a/include/linux/jbd.h +++ b/include/linux/jbd.h @@ -72,6 +72,9 @@ extern int journal_enable_debug; #endif extern void * __jbd_kmalloc (const char *where, size_t size, gfp_t flags, int retry); +extern void * jbd_slab_alloc(size_t size, gfp_t flags); +extern void jbd_slab_free(void *ptr, size_t size); + #define jbd_kmalloc(size, flags) \ __jbd_kmalloc(__FUNCTION__, (size), (flags), journal_oom_retry) #define jbd_rep_kmalloc(size, flags) \ -- cgit v1.2.3