Hello:
This patch was applied to jaegeuk/f2fs.git (dev)
by Jaegeuk Kim <[email protected]>:
On Tue, 19 May 2026 01:14:38 +0000 you wrote:
> When we mount device w/ gc_merge mount option, we may suffer below
> potential deadlock:
>
> Kworker GC trehad
> Truncator
> - f2fs_write_cache_pages
> - f2fs_write_single_data_page
> - f2fs_do_write_data_page
> - folio_start_writeback --- set writeback flag on folio
> - f2fs_outplace_write_data
> : cached folio in internal bio cache
> - f2fs_balance_fs
> - wake_up(gc_thread)
> : wake up gc thread to run foreground GC
> - finish_wait(fggc_wq)
> : wait on the waitqueue --- wait on GC thread to finish the work
> -
> truncate_inode_pages_range
> -
> __filemap_get_folio(, FGP_LOCK) --- lock folio
> -
> truncate_inode_partial_folio
> -
> folio_wait_writeback --- wait on writeback being cleared
> - do_garbage_collect
> - move_data_page
> - f2fs_get_lock_data_folio
> - lock on folio --- blocked on
> folio's lock
>
> [...]
Here is the summary with links:
- [f2fs-dev] f2fs: fix potential deadlock in gc_merge path of
f2fs_balance_fs()
https://git.kernel.org/jaegeuk/f2fs/c/cf69827e772c
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
_______________________________________________
Linux-f2fs-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
