Hello:
This patch was applied to jaegeuk/f2fs.git (dev)
by Jaegeuk Kim <jaeg...@kernel.org>:
On Wed, 4 Dec 2024 11:31:13 +0800 you wrote:
> In SSR mode, the segment selected for allocation might be the same as
> the target segment of the GC triggered by ioctl, resulting in the GC
> moving the CURSEG_I(sbi, type)->segno.
> Thread A Thread B or Thread A
> - f2fs_ioc_gc_range
> - __f2fs_ioc_gc_range(.victim_segno=segno#N)
> - f2fs_gc
> - __get_victim
> - f2fs_get_victim
> : segno#N is valid, return segno#N as source segment of GC
> - f2fs_allocate_data_block
> - need_new_seg
> - get_ssr_segment
> - f2fs_get_victim
> : get segno #N as destination
> segment
> - change_curseg
>
> [...]
Here is the summary with links:
- [f2fs-dev,V2] f2fs: The GC triggered by ioctl also needs to mark the segno
as victim
https://git.kernel.org/jaegeuk/f2fs/c/e9a844f6e487
You are awesome, thank you!
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