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authorPhillip Lougher <phillip@lougher.demon.co.uk>2011-03-22 23:01:26 +0000
committerPhillip Lougher <phillip@lougher.demon.co.uk>2011-03-22 23:01:26 +0000
commit117a91e0f25fd7698e20ac3dfa62086be3dc82a3 (patch)
treea8c032d5aa97ede9e369bf66d2dd39ad60859ac4
parent44cff8a9ee8a974f9e931df910688e7fc1f0b0f9 (diff)
downloadlinux-117a91e0f25fd7698e20ac3dfa62086be3dc82a3.tar.bz2
Squashfs: Use vmalloc rather than kmalloc for zlib workspace
Bugzilla bug 31422 reports occasional "page allocation failure. order:4" at Squashfs mount time. Fix this by making zlib workspace allocation use vmalloc rather than kmalloc. Reported-by: Mehmet Giritli <mehmet@giritli.eu> Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
-rw-r--r--fs/squashfs/zlib_wrapper.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/fs/squashfs/zlib_wrapper.c b/fs/squashfs/zlib_wrapper.c
index 195b0d035e9b..517688b32ffa 100644
--- a/fs/squashfs/zlib_wrapper.c
+++ b/fs/squashfs/zlib_wrapper.c
@@ -26,6 +26,7 @@
#include <linux/buffer_head.h>
#include <linux/slab.h>
#include <linux/zlib.h>
+#include <linux/vmalloc.h>
#include "squashfs_fs.h"
#include "squashfs_fs_sb.h"
@@ -37,8 +38,7 @@ static void *zlib_init(struct squashfs_sb_info *dummy, void *buff, int len)
z_stream *stream = kmalloc(sizeof(z_stream), GFP_KERNEL);
if (stream == NULL)
goto failed;
- stream->workspace = kmalloc(zlib_inflate_workspacesize(),
- GFP_KERNEL);
+ stream->workspace = vmalloc(zlib_inflate_workspacesize());
if (stream->workspace == NULL)
goto failed;
@@ -56,7 +56,7 @@ static void zlib_free(void *strm)
z_stream *stream = strm;
if (stream)
- kfree(stream->workspace);
+ vfree(stream->workspace);
kfree(stream);
}