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linux/drivers/block
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Bart Van Assche b9853b4d6f null_blk: Suppress an UBSAN complaint triggered when setting 'memory_backed' 
Although it is not clear to me why UBSAN complains when 'memory_backed'
is set, this patch suppresses the UBSAN complaint that is triggered when
setting that configfs attribute.

UBSAN: Undefined behaviour in drivers/block/null_blk_main.c:327:1
load of value 16 is not a valid value for type '_Bool'
CPU: 2 PID: 8396 Comm: check Not tainted 5.6.0-rc1-dbg+ #14
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
Call Trace:
 dump_stack+0xa5/0xe6
 ubsan_epilogue+0x9/0x26
 __ubsan_handle_load_invalid_value+0x6d/0x76
 nullb_device_memory_backed_store.cold+0x2c/0x38 [null_blk]
 configfs_write_file+0x1c4/0x250 [configfs]
 __vfs_write+0x4c/0x90
 vfs_write+0x145/0x2c0
 ksys_write+0xd7/0x180
 __x64_sys_write+0x47/0x50
 do_syscall_64+0x6f/0x2f0
 entry_SYSCALL_64_after_hwframe+0x49/0xbe

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Cc: Johannes Thumshirn <jth@kernel.org>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Ming Lei <ming.lei@redhat.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-03-10 07:09:59 -06:00
..
aoe
compat_ioctl: ubd, aoe: use blkdev_compat_ptr_ioctl
2020-01-03 09:33:02 +01:00
drbd
drbd: fifo_alloc() should use struct_size
2020-01-29 21:03:33 -07:00
mtip32xx
block: mtip32xx: Spelling s/configration/configuration/
2019-10-25 14:31:07 -06:00
paride
scsi: compat_ioctl: cdrom: Replace .ioctl with .compat_ioctl in four appropriate places
2020-02-24 15:06:07 -05:00
rsxx
rsxx: add missed destroy_workqueue calls in remove
2019-11-14 13:59:49 -07:00
xen-blkback
xen/blkback: Consistently insert one empty line between functions
2020-01-29 07:35:49 -06:00
zram
drivers/block/zram/zram_drv.c: fix error return codes not being returned in writeback_store
2020-01-31 10:30:39 -08:00
amiflop.c
treewide: Add SPDX license identifier for more missed files
2019-05-21 10:50:45 +02:00
ataflop.c
ataflop: Remove unneeded semicolon
2019-11-28 10:40:47 -07:00
brd.c
brd: check and limit max_part par
2020-02-04 07:19:33 -07:00
cryptoloop.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 30
2019-05-24 17:27:10 +02:00
floppy.c
floppy: check FDC index for errors before assigning it
2020-02-24 11:25:33 -08:00
Kconfig
virtio-blk: remove VIRTIO_BLK_F_SCSI support
2020-02-06 03:40:26 -05:00
loop.c
block: remove (__)blkdev_reread_part as an exported API
2019-11-14 07:43:59 -07:00
loop.h
block/loop: Use global lock for ioctl() operation.
2018-11-08 06:30:11 -07:00
Makefile
drivers/block: Remove DAC960 driver
2018-10-17 09:42:30 -06:00
nbd.c
nbd: add a flush_workqueue in nbd_start_device
2020-01-29 21:05:53 -07:00
null_blk_main.c
null_blk: Suppress an UBSAN complaint triggered when setting 'memory_backed'
2020-03-10 07:09:59 -06:00
null_blk_zoned.c
null_blk: Fix zone write handling
2020-01-15 08:18:39 -07:00
null_blk.h
null_blk: remove unused fields in 'nullb_cmd'
2020-02-25 09:43:29 -07:00
pktcdvd.c
compat_ioctl: cdrom: handle CDROM_LAST_WRITTEN
2020-01-03 09:33:11 +01:00
ps3disk.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 164
2019-05-30 11:26:38 -07:00
ps3vram.c
block/ps3vram: Use %llu to format sector_t after LBDAF removal
2019-06-13 03:17:50 -06:00
rbd_types.h
rbd: support for object-map and fast-diff
2019-07-08 14:01:45 +02:00
rbd.c
Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2020-02-08 13:26:41 -08:00
skd_main.c
Linux 5.2-rc6
2019-07-01 08:16:08 -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
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
swim.c
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
remove ioremap_nocache and devm_ioremap_nocache
2020-01-06 09:45:59 +01:00
umem.h
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 348
2019-06-05 17:37:08 +02:00
virtio_blk.c
virtio-blk: remove VIRTIO_BLK_F_SCSI support
2020-02-06 03:40:26 -05:00
xen-blkfront.c
xen/blkfront: fix ring info addressing
2020-03-05 09:55:01 -06:00
xsysace.c
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500
2019-06-19 17:09:55 +02:00
z2ram.c
powerpc updates for 4.20
2018-10-26 14:36:21 -07:00