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linux/drivers/block
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Xie Yongji cca9d5035b virtio-blk: Don't use MAX_DISCARD_SEGMENTS if max_discard_seg is zero 
[ Upstream commit dacc73ed0b88f1a787ec20385f42ca9dd9eddcd0 ]

Currently the value of max_discard_segment will be set to
MAX_DISCARD_SEGMENTS (256) with no basis in hardware if device
set 0 to max_discard_seg in configuration space. It's incorrect
since the device might not be able to handle such large descriptors.
To fix it, let's follow max_segments restrictions in this case.

Fixes: 1f23816b8eb8 ("virtio_blk: add discard and write zeroes support")
Signed-off-by: Xie Yongji <xieyongji@bytedance.com>
Link: https://lore.kernel.org/r/20220304100058.116-1-xieyongji@bytedance.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-03-16 14:15:57 +01:00
..
aoe
block: lift setting the readahead size into the block layer
2020-09-24 13:43:39 -06:00
drbd
block-5.10-2020-10-12
2020-10-13 12:12:44 -07:00
mtip32xx
blk-mq: move failure injection out of blk_mq_complete_request
2020-06-24 09:15:57 -06:00
paride
paride/pcd: use bdev_check_media_change
2020-09-10 09:32:31 -06:00
rnbd
block/rnbd-clt: Check the return value of the function rtrs_clt_query
2021-05-19 10:13:06 +02:00
rsxx
block: rsxx: fix error return code of rsxx_pci_probe()
2021-03-17 17:06:33 +01:00
xen-blkback
xen-blkback: fix compatibility bug with single page rings
2021-05-14 09:50:21 +02:00
zram
zram: off by one in read_block_state()
2021-11-18 14:04:27 +01:00
amiflop.c
amiflop: use bdev_check_media_change
2020-09-10 09:32:30 -06:00
ataflop.c
ataflop: use bdev_check_media_change
2020-09-10 09:32:30 -06:00
brd.c
bdi: remove BDI_CAP_SYNCHRONOUS_IO
2020-09-24 13:43:39 -06:00
cryptoloop.c
cryptoloop: add a deprecation warning
2021-09-08 08:49:01 +02:00
floppy.c
floppy: Add max size check for user space request
2022-01-27 10:54:14 +01:00
Kconfig
cryptoloop: add a deprecation warning
2021-09-08 08:49:01 +02:00
loop.c
loop: Use blk_validate_block_size() to validate block size
2021-11-21 13:46:35 +01:00
loop.h
…
Makefile
block/rnbd: include client and server modules into kernel compilation
2020-05-17 18:57:17 -03:00
nbd.c
Revert "block: nbd: add sanity check for first_minor"
2021-09-16 12:51:23 +02:00
null_blk_main.c
null_blk: fix command timeout completion handling
2021-04-16 11:43:21 +02:00
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
drivers/block/null_blk/main: Fix a double free in null_init.
2021-05-14 09:50:28 +02:00
null_blk.h
null_blk: fix command timeout completion handling
2021-04-16 11:43:21 +02:00
pktcdvd.c
pktcdvd: use blkdev_get_by_dev instead of open coding it
2020-09-23 10:43:19 -06:00
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_types.h
libceph, rbd: replace zero-length array with flexible-array
2020-06-01 13:22:53 +02:00
rbd.c
rbd: always kick acquire on "acquired" and "released" notifications
2021-07-28 14:35:46 +02:00
skd_main.c
skd_main: remove unused including <linux/version.h>
2020-10-17 08:11:14 -06:00
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
swim3.c
swim3: use bdev_check_media_changed
2020-09-10 09:32:31 -06:00
swim_asm.S
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152
2019-05-30 11:26:32 -07:00
swim.c
swim: simplify media change handling
2020-09-10 09:32:30 -06:00
sx8.c
…
umem.c
umem: fix error return code in mm_pci_probe()
2021-03-30 14:31:50 +02:00
umem.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 348
2019-06-05 17:37:08 +02:00
virtio_blk.c
virtio-blk: Don't use MAX_DISCARD_SEGMENTS if max_discard_seg is zero
2022-03-16 14:15:57 +01:00
xen-blkfront.c
xen/blkfront: don't use gnttab_query_foreign_access() for mapped status
2022-03-11 12:11:54 +01:00
xsysace.c
xsysace: use platform_get_resource() and platform_get_irq_optional()
2020-10-29 08:22:33 -06:00
z2ram.c
mm: reorder includes after introduction of linux/pgtable.h
2020-06-09 09:39:13 -07:00