Messages in this thread |  | | Subject | Re: [f2fs-dev] [PATCH 1/6] f2fs: call f2fs_balance_fs outside of locked page | From | Chao Yu <> | Date | Tue, 10 Dec 2019 10:09:22 +0800 |
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On 2019/12/10 6:23, Jaegeuk Kim wrote: > Otherwise, we can hit deadlock by waiting for the locked page in > move_data_block in GC. > > Thread A Thread B > - do_page_mkwrite > - f2fs_vm_page_mkwrite > - lock_page > - f2fs_balance_fs > - mutex_lock(gc_mutex) > - f2fs_gc > - do_garbage_collect > - ra_data_block > - grab_cache_page > - f2fs_balance_fs > - mutex_lock(gc_mutex) > > Fixes: 39a8695824510 ("f2fs: refactor ->page_mkwrite() flow") > Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Thanks,
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