diff options
author | Qais Yousef <qais.yousef@imgtec.com> | 2015-12-11 13:41:09 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-12-12 10:15:34 -0800 |
commit | 9530d0fe129c0197d5df13319ccefd08a827383b (patch) | |
tree | dd1f94143c0bd097a3d9d8faca08bea984262ac1 /lib/test_user_copy.c | |
parent | 2d33fa1059da4c8e816627a688d950b613ec0474 (diff) |
MIPS: fix DMA contiguous allocation
Recent changes to how GFP_ATOMIC is defined seems to have broken the
condition to use mips_alloc_from_contiguous() in
mips_dma_alloc_coherent().
I couldn't bottom out the exact change but I think it's this commit
d0164adc89f6 ("mm, page_alloc: distinguish between being unable to
sleep, unwilling to sleep and avoiding waking kswapd").
GFP_ATOMIC has multiple bits set and the check for !(gfp & GFP_ATOMIC)
isn't enough.
The reason behind this condition is to check whether we can potentially
do a sleeping memory allocation. Use gfpflags_allow_blocking() instead
which should be more robust.
Signed-off-by: Qais Yousef <qais.yousef@imgtec.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib/test_user_copy.c')
0 files changed, 0 insertions, 0 deletions