Re: [f2fs-dev] [PATCH] f2fs: fix to avoid use-after-free for cached IPU bio

[patchwork-bot+f2fs]

Hello:

This patch was applied to jaegeuk/f2fs.git (dev)
by Jaegeuk Kim <jaegeuk@xxxxxxxxxx>:

On Mon, 10 Apr 2023 10:14:02 +0800 you wrote:
> xfstest generic/019 reports a bug:
> 
> kernel BUG at mm/filemap.c:1619!
> RIP: 0010:folio_end_writeback+0x8a/0x90
> Call Trace:
>  end_page_writeback+0x1c/0x60
>  f2fs_write_end_io+0x199/0x420
>  bio_endio+0x104/0x180
>  submit_bio_noacct+0xa5/0x510
>  submit_bio+0x48/0x80
>  f2fs_submit_write_bio+0x35/0x300
>  f2fs_submit_merged_ipu_write+0x2a0/0x2b0
>  f2fs_write_single_data_page+0x838/0x8b0
>  f2fs_write_cache_pages+0x379/0xa30
>  f2fs_write_data_pages+0x30c/0x340
>  do_writepages+0xd8/0x1b0
>  __writeback_single_inode+0x44/0x370
>  writeback_sb_inodes+0x233/0x4d0
>  __writeback_inodes_wb+0x56/0xf0
>  wb_writeback+0x1dd/0x2d0
>  wb_workfn+0x367/0x4a0
>  process_one_work+0x21d/0x430
>  worker_thread+0x4e/0x3c0
>  kthread+0x103/0x130
>  ret_from_fork+0x2c/0x50
> 
> [...]

Here is the summary with links:
  - [f2fs-dev] f2fs: fix to avoid use-after-free for cached IPU bio
    https://git.kernel.org/jaegeuk/f2fs/c/5cdb422c8391

You are awesome, thank you!
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