UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Namjae Jeon 2013-03-17 17:26:14 +09:00 committed by Jaegeuk Kim
parent ae51fb31b8
commit d3ee456dfb
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
fs/f2fs/super.c
View File

@ -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);