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linux-next/fs/iomap
Christoph Hellwig 3e08773c38 block: switch polling to be bio based
Replace the blk_poll interface that requires the caller to keep a queue
and cookie from the submissions with polling based on the bio.

Polling for the bio itself leads to a few advantages:

 - the cookie construction can made entirely private in blk-mq.c
 - the caller does not need to remember the request_queue and cookie
   separately and thus sidesteps their lifetime issues
 - keeping the device and the cookie inside the bio allows to trivially
   support polling BIOs remapping by stacking drivers
 - a lot of code to propagate the cookie back up the submission path can
   be removed entirely.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Mark Wunderlich <mark.wunderlich@intel.com>
Link: https://lore.kernel.org/r/20211012111226.760968-15-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18 06:17:36 -06:00
..
buffered-io.c iomap: constify iomap_iter_srcmap 2021-08-16 21:26:33 -07:00
direct-io.c block: switch polling to be bio based 2021-10-18 06:17:36 -06:00
fiemap.c iomap: switch iomap_bmap to use iomap_iter 2021-08-16 21:26:33 -07:00
iter.c iomap: move loop control code to iter.c 2021-08-16 21:26:33 -07:00
Makefile iomap: move loop control code to iter.c 2021-08-16 21:26:33 -07:00
seek.c iomap: switch iomap_seek_data to use iomap_iter 2021-08-16 21:26:33 -07:00
swapfile.c mm/swap: consider max pages in iomap_swapfile_add_extent 2021-08-18 12:47:52 -07:00
trace.c iomap: lift common tracing code from xfs to iomap 2019-10-21 08:51:59 -07:00
trace.h iomap: standardize tracepoint formatting and storage 2021-08-26 09:18:53 -07:00