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authorNamjae Jeon <namjae.jeon@samsung.com>2013-03-17 17:26:14 +0900
committerJaegeuk Kim <jaegeuk.kim@samsung.com>2013-03-20 18:30:14 +0900
commitd3ee456dfbed1992bcaa0096d9bc76a691b0e700 (patch)
tree83a3e2554f755ca81d32eed944efa27dd3ce6c87 /fs/f2fs/super.c
parentae51fb31b8c3eb0cedc223782832be393e53623b (diff)
f2fs: notify when discard is not supported
Change f2fs so that a warning is emitted when an attempt is made to mount a filesystem with the unsupported discard option. Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Diffstat (limited to 'fs/f2fs/super.c')
-rw-r--r--fs/f2fs/super.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 1c7f595ca47..022b32a14f3 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -21,6 +21,7 @@
#include <linux/seq_file.h>
#include <linux/random.h>
#include <linux/exportfs.h>
+#include <linux/blkdev.h>
#include <linux/f2fs_fs.h>
#include "f2fs.h"
@@ -650,6 +651,14 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
if (err)
goto fail;
+ if (test_opt(sbi, DISCARD)) {
+ struct request_queue *q = bdev_get_queue(sb->s_bdev);
+ if (!blk_queue_discard(q))
+ f2fs_msg(sb, KERN_WARNING,
+ "mounting with \"discard\" option, but "
+ "the device does not support discard");
+ }
+
return 0;
fail:
stop_gc_thread(sbi);