f2fs: detect host-managed SMR by feature flag
If mkfs.f2fs gives a feature flag for host-managed SMR, we can set mode=lfs
by default.
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 41347c0..8c698e1 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -515,12 +515,10 @@
return -ENOMEM;
if (strlen(name) == 8 &&
!strncmp(name, "adaptive", 8)) {
- set_opt(sbi, ADAPTIVE);
- clear_opt(sbi, LFS);
+ set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE);
} else if (strlen(name) == 3 &&
!strncmp(name, "lfs", 3)) {
- clear_opt(sbi, ADAPTIVE);
- set_opt(sbi, LFS);
+ set_opt_mode(sbi, F2FS_MOUNT_LFS);
} else {
kfree(name);
return -EINVAL;
@@ -966,7 +964,12 @@
set_opt(sbi, EXTENT_CACHE);
sbi->sb->s_flags |= MS_LAZYTIME;
set_opt(sbi, FLUSH_MERGE);
- set_opt(sbi, ADAPTIVE);
+ if (f2fs_sb_mounted_hmsmr(sbi->sb)) {
+ set_opt_mode(sbi, F2FS_MOUNT_LFS);
+ set_opt(sbi, DISCARD);
+ } else {
+ set_opt_mode(sbi, F2FS_MOUNT_ADAPTIVE);
+ }
#ifdef CONFIG_F2FS_FS_XATTR
set_opt(sbi, XATTR_USER);
@@ -1615,6 +1618,8 @@
goto free_sbi;
sb->s_fs_info = sbi;
+ sbi->raw_super = raw_super;
+
default_options(sbi);
/* parse mount options */
options = kstrdup((const char *)data, GFP_KERNEL);
@@ -1644,7 +1649,6 @@
memcpy(sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid));
/* init f2fs-specific super block info */
- sbi->raw_super = raw_super;
sbi->valid_super_block = valid_super_block;
mutex_init(&sbi->gc_mutex);
mutex_init(&sbi->cp_mutex);