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f2fs: Do not allow adaptive mode for host-managed zoned block devices 

The LFS mode is mandatory for host-managed zoned block devices as
update in place optimizations are not possible for segments in
sequential zones.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Damien Le Moal 2016-10-28 17:45:04 +09:00 committed by Jaegeuk Kim
parent 96ba2decb4
commit 3adc57e977
1 changed files with 7 additions and 0 deletions
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7
fs/f2fs/super.c
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@ -518,6 +518,13 @@ static int parse_options(struct super_block *sb, char *options)
return -ENOMEM;
if (strlen(name) == 8 &&
!strncmp(name, "adaptive", 8)) {
if (f2fs_sb_mounted_blkzoned(sb)) {
f2fs_msg(sb, KERN_WARNING,
"adaptive mode is not allowed with "
"zoned block device feature");
kfree(name);
return -EINVAL;
}
set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE);
} else if (strlen(name) == 3 &&
!strncmp(name, "lfs", 3)) {