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authorJoonsoo Kim <js1304@gmail.com>2015-07-17 16:24:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-07-17 16:39:54 -0700
commit2292c0b1c4a24da54e29b3cf0645b4a4d9c3f2c7 (patch)
tree908a19a770be67c07b38d1b6f7730b33c02f17d7
parente2cfc91120fa01e3458167054af993fb83d7d0ec (diff)
downloadlinux-linaro-stable-2292c0b1c4a24da54e29b3cf0645b4a4d9c3f2c7.tar.gz
mm/cma_debug: fix debugging alloc/free interface
CMA has alloc/free interface for debugging. It is intended that alloc/free occurs in specific CMA region, but, currently, alloc/free interface is on root dir due to the bug so we can't select CMA region where alloc/free happens. This patch fixes this problem by making alloc/free interface per CMA region. Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com> Acked-by: Michal Nazarewicz <mina86@mina86.com> Cc: Sasha Levin <sasha.levin@oracle.com> Cc: Stefan Strogin <stefan.strogin@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/cma_debug.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/cma_debug.c b/mm/cma_debug.c
index 7621ee34daa0..22190a7fd58e 100644
--- a/mm/cma_debug.c
+++ b/mm/cma_debug.c
@@ -170,10 +170,10 @@ static void cma_debugfs_add_one(struct cma *cma, int idx)
tmp = debugfs_create_dir(name, cma_debugfs_root);
- debugfs_create_file("alloc", S_IWUSR, cma_debugfs_root, cma,
+ debugfs_create_file("alloc", S_IWUSR, tmp, cma,
&cma_alloc_fops);
- debugfs_create_file("free", S_IWUSR, cma_debugfs_root, cma,
+ debugfs_create_file("free", S_IWUSR, tmp, cma,
&cma_free_fops);
debugfs_create_file("base_pfn", S_IRUGO, tmp,