diff options
author | Sasha Levin <sasha.levin@oracle.com> | 2015-04-14 15:44:59 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-04-14 16:49:00 -0700 |
commit | 26b02a1f9670862c51b3ff63a6128589866f5c71 (patch) | |
tree | a271f168640f4f89ceab15d354f2772f4e363091 /mm/cma.h | |
parent | 28b24c1fc8c22cabe5b8a16ffe6a61dfce51a1f2 (diff) | |
download | linux-artik7-26b02a1f9670862c51b3ff63a6128589866f5c71.tar.gz linux-artik7-26b02a1f9670862c51b3ff63a6128589866f5c71.tar.bz2 linux-artik7-26b02a1f9670862c51b3ff63a6128589866f5c71.zip |
mm: cma: allocation trigger
Provides a userspace interface to trigger a CMA allocation.
Usage:
echo [pages] > alloc
This would provide testing/fuzzing access to the CMA allocation paths.
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Acked-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Laura Abbott <lauraa@codeaurora.org>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/cma.h')
-rw-r--r-- | mm/cma.h | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -7,6 +7,10 @@ struct cma { unsigned long *bitmap; unsigned int order_per_bit; /* Order of pages represented by one bit */ struct mutex lock; +#ifdef CONFIG_CMA_DEBUGFS + struct hlist_head mem_head; + spinlock_t mem_head_lock; +#endif }; extern struct cma cma_areas[MAX_CMA_AREAS]; |