On Thu, Aug 07, 2025 at 11:48:38AM +0800, Chao Yu wrote: > This patch introduces a new sysfs entry /sys/fs/f2fs/<disk>/flush_policy > in order to tune performance of f2fs data flush flow. > > For example, checkpoint will use REQ_FUA to persist CP metadata, however, > some kind device has bad performance on REQ_FUA command, result in that > checkpoint being blocked for long time, w/ this sysfs entry, we can give > an option to use REQ_PREFLUSH command instead of REQ_FUA during checkpoint, > it can help to mitigate long latency of checkpoint.
That's and odd place to deal with this. If that's a real issue it should be a block layer tweak to disable FUA, potentially with a quirk entry in the driver to disable it rather than having to touch a file system sysfs attribute. _______________________________________________ Linux-f2fs-devel mailing list Linux-f2fs-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
