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Coly Li fb25ebe1b2 drbd: code cleanup by using sendpage_ok() to check page for kernel_sendpage() 
In _drbd_send_page() a page is checked by following code before sending
it by kernel_sendpage(),
        (page_count(page) < 1) || PageSlab(page)
If the check is true, this page won't be send by kernel_sendpage() and
handled by sock_no_sendpage().

This kind of check is exactly what macro sendpage_ok() does, which is
introduced into include/linux/net.h to solve a similar send page issue
in nvme-tcp code.

This patch uses macro sendpage_ok() to replace the open coded checks to
page type and refcount in _drbd_send_page(), as a code cleanup.

Signed-off-by: Coly Li <colyli@suse.de>
Cc: Philipp Reisner <philipp.reisner@linbit.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2020-10-02 15:27:08 -07:00
..
aoe treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
drbd drbd: code cleanup by using sendpage_ok() to check page for kernel_sendpage() 2020-10-02 15:27:08 -07:00
mtip32xx blk-mq: move failure injection out of blk_mq_complete_request 2020-06-24 09:15:57 -06:00
paride treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
rnbd block/rnbd: Ensure err is always initialized in process_rdma 2020-08-21 17:09:11 -06:00
rsxx treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
xen-blkback treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
zram for-5.9/block-20200802 2020-08-03 11:57:03 -07:00
Kconfig treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
Makefile block/rnbd: include client and server modules into kernel compilation 2020-05-17 18:57:17 -03:00
amiflop.c treewide: Add SPDX license identifier for more missed files 2019-05-21 10:50:45 +02:00
ataflop.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
brd.c block: move ->make_request_fn to struct block_device_operations 2020-07-01 07:27:24 -06:00
cryptoloop.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 30 2019-05-24 17:27:10 +02:00
floppy.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
loop.c block-5.9-2020-08-28 2020-08-28 16:38:29 -07:00
loop.h block/loop: Use global lock for ioctl() operation. 2018-11-08 06:30:11 -07:00
nbd.c nbd: restore default timeout when setting it to zero 2020-08-26 09:08:49 -06:00
null_blk.h null_blk: introduce zone capacity for zoned device 2020-07-08 16:16:19 +02:00
null_blk_main.c null_blk: fix passing of REQ_FUA flag in null_handle_rq 2020-08-21 17:14:28 -06:00
null_blk_trace.c null_blk: add tracepoint helpers for zoned mode 2020-03-27 13:39:10 -06:00
null_blk_trace.h null_blk: add tracepoint helpers for zoned mode 2020-03-27 13:39:10 -06:00
null_blk_zoned.c null_blk: introduce zone capacity for zoned device 2020-07-08 16:16:19 +02:00
pktcdvd.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
ps3disk.c ps3disk: use the default segment boundary 2020-05-19 00:10:35 +10:00
ps3vram.c block: move ->make_request_fn to struct block_device_operations 2020-07-01 07:27:24 -06:00
rbd.c rbd: require global CAP_SYS_ADMIN for mapping and unmapping 2020-09-07 13:14:30 +02:00
rbd_types.h libceph, rbd: replace zero-length array with flexible-array 2020-06-01 13:22:53 +02:00
skd_main.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
skd_s1120.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 497 2019-06-19 17:09:53 +02:00
sunvdc.c compat_ioctl: block: handle cdrom compat ioctl in non-cdrom drivers 2020-01-03 09:33:15 +01:00
swim.c block/swim3: use set_current_state macro 2020-05-16 14:28:37 -06:00
swim3.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
swim_asm.S treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
sx8.c sx8: use a per-host tag_set 2018-11-09 08:14:14 -07:00
umem.c block: move ->make_request_fn to struct block_device_operations 2020-07-01 07:27:24 -06:00
umem.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 348 2019-06-05 17:37:08 +02:00
virtio_blk.c block: virtio_blk: fix handling single range discard request 2020-08-17 06:59:41 -07:00
xen-blkfront.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
xsysace.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
z2ram.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00