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authorBadari Pulavarty <pbadari@us.ibm.com>2006-08-27 04:23:52 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-08-27 14:01:32 -0400
commitea817398e68dfa25612229fda7fc74580cf915fb (patch)
treef511458f277c30b74e26bed69fe9d36dd2fe857c /include/linux/jbd.h
parent4c4d50f7b39cc58f1064b93a61ad617451ae41df (diff)
[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 <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/jbd.h')
-rw-r--r--include/linux/jbd.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/jbd.h b/include/linux/jbd.h
index 20eb34403d0c..a04c154c5207 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -72,6 +72,9 @@ extern int journal_enable_debug;
72#endif 72#endif
73 73
74extern void * __jbd_kmalloc (const char *where, size_t size, gfp_t flags, int retry); 74extern void * __jbd_kmalloc (const char *where, size_t size, gfp_t flags, int retry);
75extern void * jbd_slab_alloc(size_t size, gfp_t flags);
76extern void jbd_slab_free(void *ptr, size_t size);
77
75#define jbd_kmalloc(size, flags) \ 78#define jbd_kmalloc(size, flags) \
76 __jbd_kmalloc(__FUNCTION__, (size), (flags), journal_oom_retry) 79 __jbd_kmalloc(__FUNCTION__, (size), (flags), journal_oom_retry)
77#define jbd_rep_kmalloc(size, flags) \ 80#define jbd_rep_kmalloc(size, flags) \