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551667f99b
commit 7e91ae31e2d264155dfd102101afc2de7bd74a64 upstream.
Otherwise, if ext4_inode_attach_jinode() fails, a hung task will
happen because filemap_invalidate_unlock() isn't called to unlock
mapping->invalidate_lock. Like this:
EXT4-fs error (device sda) in ext4_setattr:5557: Out of memory
INFO: task fsstress:374 blocked for more than 122 seconds.
Not tainted 6.14.0-rc1-next-20250206-xfstests-dirty #726
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:fsstress state:D stack:0 pid:374 tgid:374 ppid:373
task_flags:0x440140 flags:0x00000000
Call Trace:
<TASK>
__schedule+0x2c9/0x7f0
schedule+0x27/0xa0
schedule_preempt_disabled+0x15/0x30
rwsem_down_read_slowpath+0x278/0x4c0
down_read+0x59/0xb0
page_cache_ra_unbounded+0x65/0x1b0
filemap_get_pages+0x124/0x3e0
filemap_read+0x114/0x3d0
vfs_read+0x297/0x360
ksys_read+0x6c/0xe0
do_syscall_64+0x4b/0x110
entry_SYSCALL_64_after_hwframe+0x76/0x7e
Fixes: c7fc0366c656 ("ext4: partial zero eof block on unaligned inode size extension")
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Link: https://patch.msgid.link/20250213112247.3168709-1-libaokun@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Ricardo Cañuelo Navarro <rcn@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>