From 398d6fad921ec0bc82ae98250831216a363c38b6 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Stefan=20Br=C3=BCns?= Date: Tue, 6 Sep 2016 04:36:47 +0200 Subject: [PATCH] ext4: Only update number of of unused inodes if GDT_CSUM feature is set MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit e2fsck warns about "Group descriptor 0 marked uninitialized without feature set." The bg_itable_unused field is only defined if FEATURE_RO_COMPAT_GDT_CSUM is set, and should be set (kept) zero otherwise. Signed-off-by: Stefan Brüns Reviewed-by: Lukasz Majewski --- fs/ext4/ext4_common.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/fs/ext4/ext4_common.c b/fs/ext4/ext4_common.c index deca954e08..aeccdf17d3 100644 --- a/fs/ext4/ext4_common.c +++ b/fs/ext4/ext4_common.c @@ -988,12 +988,13 @@ int ext4fs_get_new_inode_no(void) if (!journal_buffer || !zero_buffer) goto fail; struct ext2_block_group *bgd = (struct ext2_block_group *)fs->gdtable; + int has_gdt_chksum = le32_to_cpu(fs->sb->feature_ro_compat) & + EXT4_FEATURE_RO_COMPAT_GDT_CSUM ? 1 : 0; if (fs->first_pass_ibmap == 0) { for (i = 0; i < fs->no_blkgrp; i++) { if (bgd[i].free_inodes) { - if (bgd[i].bg_itable_unused != - bgd[i].free_inodes) + if (has_gdt_chksum) bgd[i].bg_itable_unused = bgd[i].free_inodes; if (le16_to_cpu(bgd[i].bg_flags) & EXT4_BG_INODE_UNINIT) { @@ -1014,7 +1015,8 @@ int ext4fs_get_new_inode_no(void) (i * inodes_per_grp); fs->first_pass_ibmap++; ext4fs_bg_free_inodes_dec(&bgd[i]); - ext4fs_bg_itable_unused_dec(&bgd[i]); + if (has_gdt_chksum) + ext4fs_bg_itable_unused_dec(&bgd[i]); ext4fs_sb_free_inodes_dec(fs->sb); status = ext4fs_devread( (lbaint_t)le32_to_cpu(bgd[i].inode_id) * @@ -1069,12 +1071,10 @@ restart: goto fail; prev_inode_bitmap_index = ibmap_idx; } - if (bgd[ibmap_idx].bg_itable_unused != - bgd[ibmap_idx].free_inodes) + ext4fs_bg_free_inodes_dec(&bgd[ibmap_idx]); + if (has_gdt_chksum) bgd[ibmap_idx].bg_itable_unused = bgd[ibmap_idx].free_inodes; - ext4fs_bg_free_inodes_dec(&bgd[ibmap_idx]); - ext4fs_bg_itable_unused_dec(&bgd[ibmap_idx]); ext4fs_sb_free_inodes_dec(fs->sb); goto success; } -- 2.39.5