Christoph Hellwig a70aae1250 zram: always compile read_from_bdev_sync ... Patch series "zram I/O path cleanups and fixups", v3. This series cleans up the zram I/O path, and fixes the handling of synchronous I/O to the underlying device in the writeback_store function or for > 4K PAGE_SIZE systems. The fixes are at the end, as I could not fully reason about them being safe before untangling the callchain. This patch (of 17): read_from_bdev_sync is currently only compiled for non-4k PAGE_SIZE, which means it won't be built with the most common configurations. Replace the ifdef with a check for the PAGE_SIZE in an if instead. The check uses an extra symbol and IS_ENABLED to allow the compiler to eliminate the dead code, leading to the same generated code size: text data bss dec hex filename 16709 1428 12 18149 46e5 drivers/block/zram/zram_drv.o.old 16709 1428 12 18149 46e5 drivers/block/zram/zram_drv.o.new Link: https://lkml.kernel.org/r/20230411171459.567614-1-hch@lst.de Link: https://lkml.kernel.org/r/20230411171459.567614-2-hch@lst.de Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org> Cc: Jens Axboe <axboe@kernel.dk> Cc: Minchan Kim <minchan@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2023-04-18 16:29:56 -07:00
..
aoe
drbd
mtip32xx
null_blk	block: null_blk: cleanup null_queue_rq()	2023-03-15 06:50:24 -06:00
rnbd
xen-blkback
zram	zram: always compile read_from_bdev_sync	2023-04-18 16:29:56 -07:00
amiflop.c
ataflop.c
brd.c
floppy.c	mm, treewide: redefine MAX_ORDER sanely	2023-04-05 19:42:46 -07:00
Kconfig
loop.c
Makefile
n64cart.c
nbd.c
pktcdvd.c
ps3disk.c
ps3vram.c
rbd.c
rbd_types.h
sunvdc.c	block: sunvdc: add check for mdesc_grab() returning NULL	2023-03-15 08:48:58 -06:00
swim.c
swim3.c
swim_asm.S
ublk_drv.c	block/io_uring: pass in issue_flags for uring_cmd task_work handling	2023-03-20 20:01:25 -06:00
virtio_blk.c
xen-blkfront.c
z2ram.c