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Jan Kara 2c5555983b bcache: Fix bcache device claiming 
Commit 2736e8eeb0 ("block: use the holder as indication for exclusive
opens") introduced a change that blkdev_put() has to get exclusive
holder of the bdev as an argument. However it overlooked that
register_bdev() and register_cache() overwrite the bdev->bd_holder field
in the block device to point to the real owning object which was not
available at the time we called blkdev_get_by_path(). Messing with bdev
internals like this is a layering violation and it also causes
blkdev_put() to issue warning about mismatching holders.

Fix bcache to reopen the block device with appropriate holder once it is
available which also restores the behavior that multiple bcache caches
cannot claim the same device which was broken by commit 29499ab060
("bcache: don't pass a stack address to blkdev_get_by_path").

Fixes: 2736e8eeb0 ("block: use the holder as indication for exclusive opens")
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Kent Overstreet <kent.overstreet@linux.dev>
Acked-by: Coly Li <colyli@suse.de>
Link: https://lore.kernel.org/r/20230622164658.12861-2-jack@suse.cz
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 		2023-06-23 16:10:04 -06:00
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accel Driver core changes for 6.4-rc1 2023-04-27 11:53:57 -07:00
accessibility
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acpi ACPI: video: Remove acpi_backlight=video quirk for Lenovo ThinkPad W530 2023-05-04 20:23:41 +02:00
amba
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android
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ata Driver core changes for 6.4-rc1 2023-04-27 11:53:57 -07:00
atm
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auxdisplay
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base driver core: return bool from driver_probe_done 2023-06-05 10:55:20 -06:00
bcma
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block ublk: make ublk_chr_class a static const structure 2023-06-21 07:46:13 -06:00
bluetooth Bluetooth: btusb: Add WCN6855 devcoredump support 2023-04-23 22:07:27 -07:00
bus modules-6.4-rc1 2023-04-27 16:36:55 -07:00
cdrom cdrom: Fix spectre-v1 gadget 2023-06-22 07:48:08 -06:00
cdx cdx: fix build failure due to sysfs 'bus_type' argument needing to be const 2023-04-27 16:21:32 -07:00
char tty, proc, kernfs, random: Use copy_splice_read() 2023-05-24 08:42:16 -06:00
clk A couple more patches that would be good to get into -rc1. 2023-05-07 10:31:45 -07:00
clocksource Timekeeping and clocksource/event driver updates the second batch: 2023-04-29 10:24:30 -07:00
comedi
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connector
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counter - New Drivers 2023-05-02 10:41:31 -07:00
cpufreq Driver core changes for 6.4-rc1 2023-04-27 11:53:57 -07:00
cpuidle RISC-V: Align SBI probe implementation with spec 2023-04-29 13:04:50 -07:00
crypto This push fixes the following problems: 2023-05-07 10:57:14 -07:00
cxl cxl: Add missing return to cdat read error path 2023-05-13 00:20:06 -07:00
dax
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dca Mainly singleton patches all over the place. Series of note are: 2023-04-27 19:57:00 -07:00
devfreq Driver core changes for 6.4-rc1 2023-04-27 11:53:57 -07:00
dio
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dma dmaengine updates for v6.4 2023-05-03 11:11:56 -07:00
dma-buf - Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of 2023-04-27 19:42:02 -07:00
edac Driver core changes for 6.4-rc1 2023-04-27 11:53:57 -07:00
eisa
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extcon
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firewire firewire: net: fix unexpected release of object for asynchronous request packet 2023-05-11 09:06:49 +09:00
firmware Merge tag 'drm-misc-fixes-2023-05-11' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes 2023-05-12 05:32:36 +10:00
fpga Char/Misc drivers for 6.4-rc1 2023-04-27 12:07:50 -07:00
fsi
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gnss
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gpio hte: Changes for v6.4-rc1 2023-05-03 11:00:27 -07:00
gpu Merge tag 'amd-drm-fixes-6.4-2023-05-11' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes 2023-05-12 06:46:34 +10:00
greybus
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hid Driver core changes for 6.4-rc1 2023-04-27 11:53:57 -07:00
hsi
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hte Devicetree updates for v6.4, part 2: 2023-04-27 10:09:05 -07:00
hv hyperv-next for v6.4 2023-04-27 17:17:12 -07:00
hwmon hwmon: (k10temp) Add PCI ID for family 19, model 78h 2023-05-08 11:36:19 +02:00
hwspinlock
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hwtracing
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i2c i2c: gxp: fix build failure without CONFIG_I2C_SLAVE 2023-05-03 17:27:29 +02:00
i3c i3c: ast2600: set variable ast2600_i3c_ops storage-class-specifier to static 2023-04-30 23:50:26 +02:00
idle intel_idle: mark few variables as __read_mostly 2023-04-27 19:37:36 +02:00
iio Char/Misc drivers for 6.4-rc1 2023-04-27 12:07:50 -07:00
infiniband v6.4 merge window RDMA pull request 2023-04-29 17:21:24 -07:00
input Input updates for 6.4 merge window: 2023-05-01 17:18:56 -07:00
interconnect modules-6.4-rc1 2023-04-27 16:36:55 -07:00
iommu IOMMU Updates for Linux 6.4 2023-04-30 13:00:38 -07:00
ipack
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irqchip - Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of 2023-04-27 19:42:02 -07:00
isdn Including fixes from netfilter. 2023-05-05 19:12:01 -07:00
leds - New Drivers 2023-05-02 10:36:02 -07:00
macintosh powerpc updates for 6.4 2023-04-28 16:24:32 -07:00
mailbox - mailbox api: allow direct registration to a channel 2023-05-07 10:17:33 -07:00
mcb mcb-lpc: Reallocate memory region to avoid memory overlapping 2023-04-20 14:24:01 +02:00
md bcache: Fix bcache device claiming 2023-06-23 16:10:04 -06:00
media media: nxp: imx8-isi: fix buiding on 32-bit 2023-05-08 09:10:07 -07:00
memory ARM: SoC drivers for v6.4 2023-04-25 12:02:16 -07:00
memstick
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message Objtool changes for v6.4: 2023-04-28 14:02:54 -07:00
mfd - New Drivers 2023-05-02 10:41:31 -07:00
misc Objtool changes for v6.4: 2023-04-28 14:02:54 -07:00
mmc block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
most
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mtd block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
mux
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net net: mscc: ocelot: fix stat counter register values 2023-05-10 12:11:18 +01:00
nfc drivers: nfc: nfcsim: remove return value check of `dev_dir` 2023-04-24 18:12:42 -07:00
ntb
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nubus
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nvdimm
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nvme nvme: forward port sysfs delete fix 2023-06-16 08:15:57 -07:00
nvmem modules-6.4-rc1 2023-04-27 16:36:55 -07:00
of Devicetree fixes for 6.4, part 1: 2023-05-05 13:27:59 -07:00
opp Devicetree updates for v6.4, part 2: 2023-04-27 10:09:05 -07:00
parisc parisc: Replace regular spinlock with spin_trylock on panic path 2023-05-03 17:43:26 +02:00
parport
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pci cxl for v6.4 2023-04-30 11:51:51 -07:00
pcmcia
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peci
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perf RISC-V: Align SBI probe implementation with spec 2023-04-29 13:04:50 -07:00
phy phy fixes for 6.4 2023-05-05 11:57:29 -07:00
pinctrl Pin control bulk changes for the v6.4 kernel: 2023-05-02 15:40:41 -07:00
platform platform/mellanox: fix potential race in mlxbf-tmfifo driver 2023-05-09 11:54:35 +02:00
pnp
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power power supply and reset changes for the v6.4 series 2023-04-29 17:37:02 -07:00
powercap
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pps
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ps3
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ptp Driver core changes for 6.4-rc1 2023-04-27 11:53:57 -07:00
pwm pwm: Changes for v6.4-rc1 2023-05-03 11:25:01 -07:00
rapidio Mainly singleton patches all over the place. Series of note are: 2023-04-27 19:57:00 -07:00
ras
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regulator modules-6.4-rc1 2023-04-27 16:36:55 -07:00
remoteproc Mainly singleton patches all over the place. Series of note are: 2023-04-27 19:57:00 -07:00
reset Nothing looks out of the ordinary in this batch of clk driver updates. There 2023-04-29 17:29:39 -07:00
rpmsg Driver core changes for 6.4-rc1 2023-04-27 11:53:57 -07:00
rtc - New Drivers 2023-05-02 10:41:31 -07:00
s390 block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
sbus Driver core changes for 6.4-rc1 2023-04-27 11:53:57 -07:00
scsi scsi/sg: don't grab scsi host module reference 2023-06-23 08:28:18 -06:00
sh
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siox
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slimbus
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soc modules-6.4-rc1 2023-04-27 16:36:55 -07:00
soundwire
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spi Char/Misc drivers for 6.4-rc1 2023-04-27 12:07:50 -07:00
spmi spmi: Add a check for remove callback when removing a SPMI driver 2023-04-20 14:16:39 +02:00
ssb
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staging modules-6.4-rc1 2023-04-27 16:36:55 -07:00
target block: replace fmode_t with a block-specific type for block open flags 2023-06-12 08:04:05 -06:00
tc
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tee Driver core changes for 6.4-rc1 2023-04-27 11:53:57 -07:00
thermal thermal: intel: powerclamp: Fix NULL pointer access issue 2023-05-04 20:30:18 +02:00
thunderbolt
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tty tty, proc, kernfs, random: Use copy_splice_read() 2023-05-24 08:42:16 -06:00
ufs scsi: ufs: core: Fix I/O hang that occurs when BKOPS fails in W-LUN suspend 2023-05-08 07:15:05 -04:00
uio
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usb Char/Misc drivers for 6.4-rc1 2023-04-27 12:07:50 -07:00
vdpa virtio,vhost,vdpa: features, fixes, cleanups 2023-04-27 17:05:34 -07:00
vfio VFIO updates for v6.4-rc1 2023-05-02 11:56:43 -07:00
vhost Scheduler changes for v6.4: 2023-04-28 14:53:30 -07:00
video fbdev: stifb: Fix info entry in sti_struct on error path 2023-05-12 11:50:33 +02:00
virt Devicetree updates for v6.4, part 2: 2023-04-27 10:09:05 -07:00
virtio - Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of 2023-04-27 19:42:02 -07:00
vlynq
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w1 Char/Misc drivers for 6.4-rc1 2023-04-27 12:07:50 -07:00
watchdog linux-watchdog 6.4-rc1 tag 2023-05-04 18:33:56 -07:00
xen xen: branch for v6.4-rc1 2023-04-27 17:27:06 -07:00
zorro
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Kconfig
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Makefile
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