f2fs: notify when discard is not supported (d3ee456d) · Commits · 戴 / test

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:

fs/f2fs/super.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -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);