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authorJerry Lee 李修賢 <jerrylee@qnap.com>2022-07-18 13:25:19 +0300
committerTheodore Ts'o <tytso@mit.edu>2022-09-27 23:40:30 +0300
commitdf3cb754d13d2cd5490db9b8d536311f8413a92e (patch)
treee7cfc025c36d47b79c88bb6151559898dbd086ac
parenta078dff870136090b5779ca2831870a6c5539d36 (diff)
downloadlinux-df3cb754d13d2cd5490db9b8d536311f8413a92e.tar.xz
ext4: continue to expand file system when the target size doesn't reach
When expanding a file system from (16TiB-2MiB) to 18TiB, the operation exits early which leads to result inconsistency between resize2fs and Ext4 kernel driver. === before === ○ → resize2fs /dev/mapper/thin resize2fs 1.45.5 (07-Jan-2020) Filesystem at /dev/mapper/thin is mounted on /mnt/test; on-line resizing required old_desc_blocks = 2048, new_desc_blocks = 2304 The filesystem on /dev/mapper/thin is now 4831837696 (4k) blocks long. [ 865.186308] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null). Quota mode: none. [ 912.091502] dm-4: detected capacity change from 34359738368 to 38654705664 [ 970.030550] dm-5: detected capacity change from 34359734272 to 38654701568 [ 1000.012751] EXT4-fs (dm-5): resizing filesystem from 4294966784 to 4831837696 blocks [ 1000.012878] EXT4-fs (dm-5): resized filesystem to 4294967296 === after === [ 129.104898] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null). Quota mode: none. [ 143.773630] dm-4: detected capacity change from 34359738368 to 38654705664 [ 198.203246] dm-5: detected capacity change from 34359734272 to 38654701568 [ 207.918603] EXT4-fs (dm-5): resizing filesystem from 4294966784 to 4831837696 blocks [ 207.918754] EXT4-fs (dm-5): resizing filesystem from 4294967296 to 4831837696 blocks [ 207.918758] EXT4-fs (dm-5): Converting file system to meta_bg [ 207.918790] EXT4-fs (dm-5): resizing filesystem from 4294967296 to 4831837696 blocks [ 221.454050] EXT4-fs (dm-5): resized to 4658298880 blocks [ 227.634613] EXT4-fs (dm-5): resized filesystem to 4831837696 Signed-off-by: Jerry Lee <jerrylee@qnap.com> Link: https://lore.kernel.org/r/PU1PR04MB22635E739BD21150DC182AC6A18C9@PU1PR04MB2263.apcprd04.prod.outlook.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
-rw-r--r--fs/ext4/resize.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index fea2a68d067b..6dfe9ccae0c5 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -2122,7 +2122,7 @@ retry:
goto out;
}
- if (ext4_blocks_count(es) == n_blocks_count)
+ if (ext4_blocks_count(es) == n_blocks_count && n_blocks_count_retry == 0)
goto out;
err = ext4_alloc_flex_bg_array(sb, n_group + 1);