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Date: Mon, 17 Mar 2008 09:28:41 -0400 From: Theodore Ts'o <tytso@....edu> To: linux-ext4@...r.kernel.org Cc: "Jose R. Santos" <jrs@...ibm.com>, Andreas Dilger <adilger@...sterfs.com>, "Theodore Ts'o" <tytso@....edu> Subject: [PATCH, REWORKED 05/11] Make tune2fs uninit block group aware From: Jose R. Santos <jrs@...ibm.com> Signed-off-by: Jose R. Santos <jrs@...ibm.com> Signed-off-by: Andreas Dilger <adilger@...sterfs.com> Signed-off-by: "Theodore Ts'o" <tytso@....edu> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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