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alistair23-linux/drivers/block
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Zheng Bin f4bd34b139 loop: replace kill_bdev with invalidate_bdev 
When a filesystem is mounted on a loop device and on a loop ioctl
LOOP_SET_STATUS64, because of kill_bdev, buffer_head mappings are getting
destroyed.
kill_bdev
  truncate_inode_pages
    truncate_inode_pages_range
      do_invalidatepage
        block_invalidatepage
          discard_buffer  -->clear BH_Mapped flag

sb_bread
  __bread_gfp
  bh = __getblk_gfp
  -->discard_buffer clear BH_Mapped flag
  __bread_slow
    submit_bh
      submit_bh_wbc
        BUG_ON(!buffer_mapped(bh))  --> hit this BUG_ON

Fixes: 5db470e229 ("loop: drop caches if offset or block_size are changed")
Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 		2020-06-18 09:24:35 -06:00
..
aoe bdi: fix up for "remove the name field in struct backing_dev_info" 2020-05-11 09:08:26 -06:00
drbd Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 2020-06-03 16:27:18 -07:00
mtip32xx block: mtip32xx: Spelling s/configration/configuration/ 2019-10-25 14:31:07 -06:00
paride treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
rnbd RDMA/rnbd: Fix compilation error when CONFIG_MODULES is disabled 2020-05-22 15:50:22 -03:00
rsxx rsxx: use bio_{start,end}_io_acct 2020-05-27 05:21:23 -06:00
xen-blkback xen/blkback: Consistently insert one empty line between functions 2020-01-29 07:35:49 -06:00
zram zcomp: Use ARRAY_SIZE() for backends list 2020-06-04 19:06:24 -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 ataflop: Remove unneeded semicolon 2019-11-28 10:40:47 -07:00
brd.c block: simplify queue allocation 2020-03-27 10:23:43 -06:00
cryptoloop.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 30 2019-05-24 17:27:10 +02:00
floppy.c block/floppy: fix contended case in floppy_queue_rq() 2020-05-26 15:23:54 -06:00
loop.c loop: replace kill_bdev with invalidate_bdev 2020-06-18 09:24:35 -06:00
loop.h block/loop: Use global lock for ioctl() operation. 2018-11-08 06:30:11 -07:00
nbd.c nbd: requeue command if the soecket is changed 2020-03-12 08:01:24 -06:00
null_blk.h null_blk: Cleanup zoned device initialization 2020-04-23 09:35:09 -06:00
null_blk_main.c for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
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 for-5.8/block-2020-06-01 2020-06-02 15:29:19 -07:00
pktcdvd.c pktcdvd: remove redundant initialization of variable ret 2020-06-11 09:15:48 -06:00
ps3disk.c ps3disk: use the default segment boundary 2020-05-19 00:10:35 +10:00
ps3vram.c block: simplify queue allocation 2020-03-27 10:23:43 -06:00
rbd.c rbd: compression_hint option 2020-06-01 23:32:35 +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 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
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 umem: remove redundant initialization of variable ret 2020-06-11 09:16:17 -06:00
umem.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 348 2019-06-05 17:37:08 +02:00
virtio_blk.c virtio-blk: handle block_device_operations callbacks after hot unplug 2020-05-02 10:28:13 -04:00
xen-blkfront.c xen: branch for v5.7-rc1b 2020-04-10 17:20:06 -07:00
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