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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-06-02 06:11:24 +0900 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-06-02 06:11:24 +0900 |
| commit | 1fa7b6a29c61358cc2ca6f64cef4aa0e1a7ca74c (patch) | |
| tree | 7318c8602f61c2052df308920bd681539f760555 | |
| parent | f0f52a9463839c52a63c05d6e7d4a330d94a9794 (diff) | |
| download | linux-1fa7b6a29c61358cc2ca6f64cef4aa0e1a7ca74c.tar.bz2 | |
Revert "mm: fail GFP_DMA allocations when ZONE_DMA is not configured"
This reverts commit a197b59ae6e8bee56fcef37ea2482dc08414e2ac.
As rmk says:
"Commit a197b59ae6e8 (mm: fail GFP_DMA allocations when ZONE_DMA is not
configured) is causing regressions on ARM with various drivers which
use GFP_DMA.
The behaviour up until now has been to silently ignore that flag when
CONFIG_ZONE_DMA is not enabled, and to allocate from the normal zone.
However, as a result of the above commit, such allocations now fail
which causes drivers to fail. These are regressions compared to the
previous kernel version."
so just revert it.
Requested-by: Russell King <linux@arm.linux.org.uk>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | mm/page_alloc.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index a4e1db3f1981..4e8985acdab8 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2247,10 +2247,6 @@ __alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order, if (should_fail_alloc_page(gfp_mask, order)) return NULL; -#ifndef CONFIG_ZONE_DMA - if (WARN_ON_ONCE(gfp_mask & __GFP_DMA)) - return NULL; -#endif /* * Check the zones suitable for the gfp_mask contain at least one |