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authorChristoph Lameter <clameter@sgi.com>2007-05-06 17:49:38 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-07 15:12:53 -0400
commit614410d5892af5f86d0ec14e28f9f6d5f4ac9e9b (patch)
tree616c8437f45590a0ca6e2efdc2a5dfb61799d0ec /mm
parent47bfdc0d5a18a4b760ffb6a332932aaa5c0859e0 (diff)
SLUB: allocate smallest object size if the user asks for 0 bytes
Makes SLUB behave like SLAB in this area to avoid issues.... Throw a stack dump to alert people. At some point the behavior should be switched back. NULL is no memory as far as I can tell and if the use asked for 0 bytes then he need to get no memory. 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 'mm')
-rw-r--r--mm/slub.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 4a8585befd84..9d52cce7c999 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1979,7 +1979,7 @@ static struct kmem_cache *get_slab(size_t size, gfp_t flags)
1979{ 1979{
1980 int index = kmalloc_index(size); 1980 int index = kmalloc_index(size);
1981 1981
1982 if (!size) 1982 if (!index)
1983 return NULL; 1983 return NULL;
1984 1984
1985 /* Allocation too large? */ 1985 /* Allocation too large? */