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slab: correctly handle __GFP_ZERO 

Use the correct local variable when calling into the page allocator.  Local
`flags' can have __GFP_ZERO set, which causes us to pass __GFP_ZERO into the
page allocator, possibly from illegal contexts.  The page allocator will later
do prep_zero_page()->kmap_atomic(..., KM_USER0) from irq contexts and will
then go BUG.

Cc: Mike Galbraith <efault@gmx.de>
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Andrew Morton 2007-07-24 12:02:40 -07:00 committed by Linus Torvalds
parent 01e457cfcd
commit b8c1c5da15
1 changed files with 1 additions and 1 deletions
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mm/slab.c
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@ -2776,7 +2776,7 @@ static int cache_grow(struct kmem_cache *cachep,
* 'nodeid'.
*/
if (!objp)
objp = kmem_getpages(cachep, flags, nodeid);
objp = kmem_getpages(cachep, local_flags, nodeid);
if (!objp)
goto failed;