This feature flag will be used by f2fs to detect HMSMR device.
Signed-off-by: Jaegeuk Kim <jaeg...@kernel.org>
---
fsck/mount.c | 3 +++
include/f2fs_fs.h | 1 +
mkfs/f2fs_format_main.c | 2 ++
3 files changed, 6 insertions(+)
diff --git a/fsck/mount.c b/fsck/mount.c
index 9d08118..e0223e0 100644
--- a/fsck/mount.c
+++ b/fsck/mount.c
@@ -267,6 +267,9 @@ void print_sb_state(struct f2fs_super_block *sb)
if (f & cpu_to_le32(F2FS_FEATURE_ENCRYPT)) {
MSG(0, "%s", " encrypt");
}
+ if (f & cpu_to_le32(F2FS_FEATURE_HMSMR)) {
+ MSG(0, "%s", " host-managed SMR");
+ }
MSG(0, "\n");
MSG(0, "Info: superblock encrypt level = %d, salt = ",
sb->encryption_level);
diff --git a/include/f2fs_fs.h b/include/f2fs_fs.h
index 1045ede..1345e2d 100644
--- a/include/f2fs_fs.h
+++ b/include/f2fs_fs.h
@@ -457,6 +457,7 @@ enum {
#define MAX_ACTIVE_DATA_LOGS 8
#define F2FS_FEATURE_ENCRYPT 0x0001
+#define F2FS_FEATURE_HMSMR 0x0002
#define MAX_VOLUME_NAME 512
diff --git a/mkfs/f2fs_format_main.c b/mkfs/f2fs_format_main.c
index 8bd938c..f69d03f 100644
--- a/mkfs/f2fs_format_main.c
+++ b/mkfs/f2fs_format_main.c
@@ -64,6 +64,8 @@ static void parse_feature(char *features)
{
if (!strcmp(features, "encrypt")) {
config.feature |= cpu_to_le32(F2FS_FEATURE_ENCRYPT);
+ } else if (config.smr_mode) {
+ config.feature |= cpu_to_le32(F2FS_FEATURE_HMSMR);
} else {
MSG(0, "Error: Wrong features\n");
mkfs_usage();
--
2.8.3
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