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ext4: fix potential htree corruption when growing large_dir directories

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commit 877ba3f729fd3d8ef0e29bc2a55e57cfa54b2e43 upstream.

Commit b5776e7524af ("ext4: fix potential htree index checksum
corruption) removed a required restart when multiple levels of index
nodes need to be split.  Fix this to avoid directory htree corruptions
when using the large_dir feature.

Cc: stable@kernel.org # v5.11
Cc: Благодаренко Артём <artem.blagodarenko@gmail.com>
Fixes: b5776e7524af ("ext4: fix potential htree index checksum corruption)
Reported-by: Denis <denis@voxelsoft.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Theodore Ts'o 2021-08-04 14:23:55 -04:00 committed by AuxXxilium
parent 20bfab1a3d
commit 0b6bc338a9
1 changed files with 1 additions and 1 deletions
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2
fs/ext4/namei.c
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@ -2602,7 +2602,7 @@ static int ext4_dx_add_entry(handle_t *handle, struct ext4_filename *fname,
goto journal_error;
err = ext4_handle_dirty_dx_node(handle, dir,
frame->bh);
if (err)
if (restart || err)
goto journal_error;
} else {
struct dx_root *dxroot;