From: Jose R. Santos <jrs@xxxxxxxxxx>
Signed-off-by: Jose R. Santos <jrs@xxxxxxxxxx>
Signed-off-by: Andreas Dilger <adilger@xxxxxxxxxxxxx>
Signed-off-by: "Theodore Ts'o" <tytso@xxxxxxx>
---
misc/tune2fs.8.in | 7 +++++++
misc/tune2fs.c | 8 ++++++--
2 files changed, 13 insertions(+), 2 deletions(-)
diff --git a/misc/tune2fs.8.in b/misc/tune2fs.8.in
index 8b59c17..b5af4d0 100644
--- a/misc/tune2fs.8.in
+++ b/misc/tune2fs.8.in
@@ -439,10 +439,17 @@ Reserve space so the block group descriptor table may grow in the
future.
.B Tune2fs
only supports clearing this filesystem feature.
+.TP
+.B uninit_groups
+Allow the kernel to initialize bitmaps and inode tables and keep a high
+watermark for the unused inodes in a filesystem, to reduce
+.BR e2fsck (8)
+time.
.RE
.IP
After setting or clearing
.BR sparse_super ,
+.BR uninit_groups ,
.BR filetype ,
or
.B resize_inode
diff --git a/misc/tune2fs.c b/misc/tune2fs.c
index dc44d56..8f5d564 100644
--- a/misc/tune2fs.c
+++ b/misc/tune2fs.c
@@ -118,6 +118,7 @@ static __u32 ok_features[3] = {
EXT4_FEATURE_INCOMPAT_FLEX_BG,
/* R/O compat */
EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM |
EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER
};
@@ -130,7 +131,8 @@ static __u32 clear_ok_features[3] = {
EXT2_FEATURE_INCOMPAT_FILETYPE |
EXT4_FEATURE_INCOMPAT_FLEX_BG,
/* R/O compat */
- EXT2_FEATURE_RO_COMPAT_LARGE_FILE
+ EXT2_FEATURE_RO_COMPAT_LARGE_FILE |
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM
};
/*
@@ -245,6 +247,7 @@ static int release_blocks_proc(ext2_filsys fs, blk_t *blocknr,
ext2fs_unmark_block_bitmap(fs->block_map,block);
group = ext2fs_group_of_blk(fs, block);
fs->group_desc[group].bg_free_blocks_count++;
+ ext2fs_group_desc_csum_set(fs, group);
fs->super->s_free_blocks_count++;
return 0;
}
@@ -315,7 +318,6 @@ static void update_mntopts(ext2_filsys fs, char *mntopts)
static void update_feature_set(ext2_filsys fs, char *features)
{
struct ext2_super_block *sb= fs->super;
- __u32 old_compat, old_incompat, old_ro_compat;
__u32 old_features[3];
int type_err;
unsigned int mask_err;
@@ -410,6 +412,8 @@ static void update_feature_set(ext2_filsys fs, char *features)
if (FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
EXT2_FEATURE_RO_COMPAT_SPARSE_SUPER) ||
+ FEATURE_CHANGED(E2P_FEATURE_RO_INCOMPAT,
+ EXT4_FEATURE_RO_COMPAT_GDT_CSUM) ||
FEATURE_CHANGED(E2P_FEATURE_INCOMPAT,
EXT2_FEATURE_INCOMPAT_FILETYPE) ||
FEATURE_CHANGED(E2P_FEATURE_COMPAT,
--
1.5.4.1.144.gdfee-dirty
--
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