Hello:
This patch was applied to jaegeuk/f2fs.git (dev)
by Jaegeuk Kim <jaeg...@kernel.org>:
On Fri, 25 Oct 2024 03:18:23 -0600 you wrote:
> When the free segment is used up during CP disable, many write or
> ioctl operations will get ENOSPC error codes, even if there are
> still many blocks available. We can reproduce it in the following
> steps:
>
> dd if=/dev/zero of=f2fs.img bs=1M count=65
> mkfs.f2fs -f f2fs.img
> mount f2fs.img f2fs_dir -o checkpoint=disable:10%
> cd f2fs_dir
> i=1 ; while [[ $i -lt 50 ]] ; do (file_name=./2M_file$i ; dd \
> if=/dev/random of=$file_name bs=1M count=2); i=$((i+1)); done
> sync
> i=1 ; while [[ $i -lt 50 ]] ; do (file_name=./2M_file$i ; truncate \
> -s 1K $file_name); i=$((i+1)); done
> sync
> dd if=/dev/zero of=./file bs=1M count=20
>
> [...]
Here is the summary with links:
- [f2fs-dev,v4] f2fs: modify f2fs_is_checkpoint_ready logic to allow more
data to be written with the CP disable
https://git.kernel.org/jaegeuk/f2fs/c/84b5bb8bf0f6
You are awesome, thank you!
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