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slab: correctly handle __GFP_ZERO

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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 <[email protected]>
Acked-by: Christoph Lameter <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Andrew Morton 2007-07-24 12:02:40 -07:00 • committed by Linus Torvalds
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;