[Resending because of messed up mailing list address] Hello, this is second revision of my patch series improving NFS throughput for buffered writes. Changes since v1: * Added Reviewed-by tags * Made sleep waiting for congestion to resolve killable Original cover letter below: I was thinking how to best address the performance regression coming from NFS write congestion. After considering various options and concerns raised in the previous discussion, I've got an idea for a simple option that could help to keep the server more busy - just mimick what block devices do and block the flush worker waiting for congestion to resolve instead of aborting the writeback. And it actually helps enough that I don't think more complex solutions are warranted at this point. This patch series has two preparatory cleanups and then a patch implementing this idea. Honza Previous versions: Link: http://lore.kernel.org/r/20240612153022.25454-1-jack@xxxxxxx # v1
