ext4: fix insufficient credits calculation in ext4_meta_trans_blocks()
authorZhang Yi <yi.zhang@huawei.com>
Mon, 7 Jul 2025 14:08:13 +0000 (22:08 +0800)
committerTheodore Ts'o <tytso@mit.edu>
Mon, 14 Jul 2025 03:41:52 +0000 (23:41 -0400)
commit5137d6c8906b55b3c7b5d1aa5a549753ec8520f5
tree8bc02907ad4db6bd2f805647ff9063cede2445ca
parent57661f28756c59510e31543520b5b8f5e591f384
ext4: fix insufficient credits calculation in ext4_meta_trans_blocks()

The calculation of journal credits in ext4_meta_trans_blocks() should
include pextents, as each extent separately may be allocated from a
different group and thus need to update different bitmap and group
descriptor block.

Fixes: 0e32d8617012 ("ext4: correct the journal credits calculations of allocating blocks")
Reported-by: Jan Kara <jack@suse.cz>
Closes: https://lore.kernel.org/linux-ext4/nhxfuu53wyacsrq7xqgxvgzcggyscu2tbabginahcygvmc45hy@t4fvmyeky33e/
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Baokun Li <libaokun1@huawei.com>
Link: https://patch.msgid.link/20250707140814.542883-11-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
fs/ext4/inode.c