| Age | Commit message (Collapse) | Author |
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Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Some required information is not exposed to userspace currently (eg. the
PASID), pass this information back, along with other information which
is currently communicated via sysfs, which saves some parsing effort in
userspace.
Signed-off-by: Alastair D'Silva <alastair@d-silva.org>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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BUG: unable to handle kernel NULL pointer dereference at 0000000000000100
[ 985.596918] IP: _raw_spin_lock_bh+0x17/0x30
[ 985.601581] PGD 0 P4D 0
[ 985.604405] Oops: 0002 [#1] SMP
:
[ 985.704533] CPU: 16 PID: 1156 Comm: qedi_thread/16 Not tainted 4.16.0-rc2 #1
[ 985.712397] Hardware name: Dell Inc. PowerEdge R730/0599V5, BIOS 2.4.3 01/17/2017
[ 985.720747] RIP: 0010:_raw_spin_lock_bh+0x17/0x30
[ 985.725996] RSP: 0018:ffffa4b1c43d3e10 EFLAGS: 00010246
[ 985.731823] RAX: 0000000000000000 RBX: ffff94a31bd03000 RCX: 0000000000000000
[ 985.739783] RDX: 0000000000000001 RSI: ffff94a32fa16938 RDI: 0000000000000100
[ 985.747744] RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000a33
[ 985.755703] R10: 0000000000000000 R11: ffffa4b1c43d3af0 R12: 0000000000000000
[ 985.763662] R13: ffff94a301f40818 R14: 0000000000000000 R15: 000000000000000c
[ 985.771622] FS: 0000000000000000(0000) GS:ffff94a32fa00000(0000) knlGS:0000000000000000
[ 985.780649] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 985.787057] CR2: 0000000000000100 CR3: 000000067a009006 CR4: 00000000001606e0
[ 985.795017] Call Trace:
[ 985.797747] qedi_fp_process_cqes+0x258/0x980 [qedi]
[ 985.803294] qedi_percpu_io_thread+0x10f/0x1b0 [qedi]
[ 985.808931] kthread+0xf5/0x130
[ 985.812434] ? qedi_free_uio+0xd0/0xd0 [qedi]
[ 985.817298] ? kthread_bind+0x10/0x10
[ 985.821372] ? do_syscall_64+0x6e/0x1a0
Signed-off-by: Manish Rangankar <manish.rangankar@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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commit a4239945b8ad ("scsi: qla2xxx: Add switch command to simplify
fabric discovery") introduced regression when it did not consider
FC-NVMe code path which broke NVMe LUN discovery.
Fixes: a4239945b8ad ("scsi: qla2xxx: Add switch command to simplify fabric discovery")
Signed-off-by: Darren Trapp <darren.trapp@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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When converting __scsi_error_from_host_byte() to BLK_STS error codes the
case DID_OK was forgotten, resulting in it always returning an error.
Fixes: 2a842acab109 ("block: introduce new block status code type")
Cc: Doug Gilbert <dgilbert@interlog.com>
Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Avoid that the recently introduced call_rcu() call in the SCSI core
triggers a double call_rcu() call.
Reported-by: Natanael Copa <ncopa@alpinelinux.org>
Reported-by: Damien Le Moal <damien.lemoal@wdc.com>
References: https://bugzilla.kernel.org/show_bug.cgi?id=198861
Fixes: 3bd6f43f5cb3 ("scsi: core: Ensure that the SCSI error handler gets woken up")
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@wdc.com>
Cc: Natanael Copa <ncopa@alpinelinux.org>
Cc: Damien Le Moal <damien.lemoal@wdc.com>
Cc: Alexandre Oliva <oliva@gnu.org>
Cc: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Johannes Thumshirn <jthumshirn@suse.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The fcport flags FCF_ASYNC_ACTIVE and FCF_ASYNC_SENT are used to
throttle the state machine, so we need to ensure to always set and unset
them correctly. Not doing so will lead to the state machine getting
confused and no login attempt into remote ports.
Cc: Quinn Tran <quinn.tran@cavium.com>
Cc: Himanshu Madhani <himanshu.madhani@cavium.com>
Fixes: 3dbec59bdf63 ("scsi: qla2xxx: Prevent multiple active discovery commands per session")
Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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When no loop id is assigned in qla24xx_fcport_handle_login() the login
state needs to be ignored; it will get set later on in
qla_chk_n2n_b4_login().
Cc: Quinn Tran <quinn.tran@cavium.com>
Cc: Himanshu Madhani <himanshu.madhani@cavium.com>
Fixes: 040036bb0bc1 ("scsi: qla2xxx: Delay loop id allocation at login")
Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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Commit d8630bb95f46 ('Serialize session deletion by using work_lock')
tries to fixup a deadlock when deleting sessions, but fails to take into
account the locking rules. This patch resolves the situation by
introducing a separate lock for processing the GNLIST response, and
ensures that sess_lock is released before calling
qlt_schedule_sess_delete().
Cc: Himanshu Madhani <himanshu.madhani@cavium.com>
Cc: Quinn Tran <quinn.tran@cavium.com>
Fixes: d8630bb95f46 ("scsi: qla2xxx: Serialize session deletion by using work_lock")
Signed-off-by: Hannes Reinecke <hare@suse.com>
Acked-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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This patch fixes NULL pointer crash due to active timer running for abort
IOCB.
From crash dump analysis it was discoverd that get_next_timer_interrupt()
encountered a corrupted entry on the timer list.
#9 [ffff95e1f6f0fd40] page_fault at ffffffff914fe8f8
[exception RIP: get_next_timer_interrupt+440]
RIP: ffffffff90ea3088 RSP: ffff95e1f6f0fdf0 RFLAGS: 00010013
RAX: ffff95e1f6451028 RBX: 000218e2389e5f40 RCX: 00000001232ad600
RDX: 0000000000000001 RSI: ffff95e1f6f0fdf0 RDI: 0000000001232ad6
RBP: ffff95e1f6f0fe40 R8: ffff95e1f6451188 R9: 0000000000000001
R10: 0000000000000016 R11: 0000000000000016 R12: 00000001232ad5f6
R13: ffff95e1f6450000 R14: ffff95e1f6f0fdf8 R15: ffff95e1f6f0fe10
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
Looking at the assembly of get_next_timer_interrupt(), address came
from %r8 (ffff95e1f6451188) which is pointing to list_head with single
entry at ffff95e5ff621178.
0xffffffff90ea307a <get_next_timer_interrupt+426>: mov (%r8),%rdx
0xffffffff90ea307d <get_next_timer_interrupt+429>: cmp %r8,%rdx
0xffffffff90ea3080 <get_next_timer_interrupt+432>: je 0xffffffff90ea30a7 <get_next_timer_interrupt+471>
0xffffffff90ea3082 <get_next_timer_interrupt+434>: nopw 0x0(%rax,%rax,1)
0xffffffff90ea3088 <get_next_timer_interrupt+440>: testb $0x1,0x18(%rdx)
crash> rd ffff95e1f6451188 10
ffff95e1f6451188: ffff95e5ff621178 ffff95e5ff621178 x.b.....x.b.....
ffff95e1f6451198: ffff95e1f6451198 ffff95e1f6451198 ..E.......E.....
ffff95e1f64511a8: ffff95e1f64511a8 ffff95e1f64511a8 ..E.......E.....
ffff95e1f64511b8: ffff95e77cf509a0 ffff95e77cf509a0 ...|.......|....
ffff95e1f64511c8: ffff95e1f64511c8 ffff95e1f64511c8 ..E.......E.....
crash> rd ffff95e5ff621178 10
ffff95e5ff621178: 0000000000000001 ffff95e15936aa00 ..........6Y....
ffff95e5ff621188: 0000000000000000 00000000ffffffff ................
ffff95e5ff621198: 00000000000000a0 0000000000000010 ................
ffff95e5ff6211a8: ffff95e5ff621198 000000000000000c ..b.............
ffff95e5ff6211b8: 00000f5800000000 ffff95e751f8d720 ....X... ..Q....
ffff95e5ff621178 belongs to freed mempool object at ffff95e5ff621080.
CACHE NAME OBJSIZE ALLOCATED TOTAL SLABS SSIZE
ffff95dc7fd74d00 mnt_cache 384 19785 24948 594 16k
SLAB MEMORY NODE TOTAL ALLOCATED FREE
ffffdc5dabfd8800 ffff95e5ff620000 1 42 29 13
FREE / [ALLOCATED]
ffff95e5ff621080 (cpu 6 cache)
Examining the contents of that memory reveals a pointer to a constant string
in the driver, "abort\0", which is set by qla24xx_async_abort_cmd().
crash> rd ffffffffc059277c 20
ffffffffc059277c: 6e490074726f6261 0074707572726574 abort.Interrupt.
ffffffffc059278c: 00676e696c6c6f50 6920726576697244 Polling.Driver i
ffffffffc059279c: 646f6d207325206e 6974736554000a65 n %s mode..Testi
ffffffffc05927ac: 636976656420676e 786c252074612065 ng device at %lx
ffffffffc05927bc: 6b63656843000a2e 646f727020676e69 ...Checking prod
ffffffffc05927cc: 6f20444920746375 0a2e706968632066 uct ID of chip..
ffffffffc05927dc: 5120646e756f4600 204130303232414c .Found QLA2200A
ffffffffc05927ec: 43000a2e70696843 20676e696b636568 Chip...Checking
ffffffffc05927fc: 65786f626c69616d 6c636e69000a2e73 mailboxes...incl
ffffffffc059280c: 756e696c2f656475 616d2d616d642f78 ude/linux/dma-ma
crash> struct -ox srb_iocb
struct srb_iocb {
union {
struct {...} logio;
struct {...} els_logo;
struct {...} tmf;
struct {...} fxiocb;
struct {...} abt;
struct ct_arg ctarg;
struct {...} mbx;
struct {...} nack;
[0x0 ] } u;
[0xb8] struct timer_list timer;
[0x108] void (*timeout)(void *);
}
SIZE: 0x110
crash> ! bc
ibase=16
obase=10
B8+40
F8
The object is a srb_t, and at offset 0xf8 within that structure
(i.e. ffff95e5ff621080 + f8 -> ffff95e5ff621178) is a struct timer_list.
Cc: <stable@vger.kernel.org> #4.4+
Fixes: 4440e46d5db7 ("[SCSI] qla2xxx: Add IOCB Abort command asynchronous handling.")
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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The subpage_prot syscall is only functional when the system is using
the Hash MMU. Since commit 5b2b80714796 ("powerpc/mm: Invalidate
subpage_prot() system call on radix platforms") it returns ENOENT when
the Radix MMU is active. Currently this just makes the test fail.
Additionally the syscall is not available if the kernel is built with
4K pages, or if CONFIG_PPC_SUBPAGE_PROT=n, in which case it returns
ENOSYS because the syscall is missing entirely.
So check explicitly for ENOENT and ENOSYS and skip if we see either of
those.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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The package name is ncurses-devel for Redhat based distros
and libncurses-dev for Debian based distros.
Signed-off-by: Arvind Prasanna <arvindprasanna@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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'--build-id' is passed to $(LD), so it should be tested by 'ld-option'.
This seems a kind of misconversion when ld-option was renamed to
cc-ldoption.
Commit f86fd3066052 ("kbuild: rename ld-option to cc-ldoption") renamed
all instances of 'ld-option' to 'cc-ldoption'.
Then, commit 691ef3e7fdc1 ("kbuild: introduce ld-option") re-added
'ld-option' as a new implementation.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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GCC_PLUGINS_CFLAGS is already in the environment, so it is superfluous
to add it in commandline of final build of init/.
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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The named choice is not used in the kernel tree, but if it were used,
it would not be freed.
The intention of the named choice can be seen in the log of
commit 5a1aa8a1aff6 ("kconfig: add named choice group").
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com>
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If CONFIG_USE_BUILTIN_DTB is enabled, but CONFIG_BUILTIN_DTB_SOURCE
is empty (for example, allmodconfig), it fails to build, like this:
make[2]: *** No rule to make target 'arch/sh/boot/dts/.dtb.o',
needed by 'arch/sh/boot/dts/built-in.o'. Stop.
Surround obj-y with ifneq ... endif.
I replaced $(CONFIG_USE_BUILTIN_DTB) with 'y' since this is always
the case from the following code from arch/sh/Makefile:
core-$(CONFIG_USE_BUILTIN_DTB) += arch/sh/boot/dts/
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
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The 'defconfig_list' is a weird attribute. If the '.config' is
missing, conf_read_simple() iterates over all visible defaults,
then it uses the first one for which fopen() succeeds.
config DEFCONFIG_LIST
string
depends on !UML
option defconfig_list
default "/lib/modules/$UNAME_RELEASE/.config"
default "/etc/kernel-config"
default "/boot/config-$UNAME_RELEASE"
default "$ARCH_DEFCONFIG"
default "arch/$ARCH/defconfig"
However, like other symbols, the first visible default is always
written out to the .config file. This might be different from what
has been actually used.
For example, on my machine, the third one "/boot/config-$UNAME_RELEASE"
is opened, like follows:
$ rm .config
$ make oldconfig 2>/dev/null
scripts/kconfig/conf --oldconfig Kconfig
#
# using defaults found in /boot/config-4.4.0-112-generic
#
*
* Restart config...
*
*
* IRQ subsystem
*
Expose irq internals in debugfs (GENERIC_IRQ_DEBUGFS) [N/y/?] (NEW)
However, the resulted .config file contains the first one since it is
visible:
$ grep CONFIG_DEFCONFIG_LIST .config
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
In order to stop confusing people, prevent this CONFIG option from
being written to the .config file.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Ulf Magnusson <ulfalizer@gmail.com>
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git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"Pretty much run of the mill drm fixes.
amdgpu:
- power management fixes
- some display fixes
- one ppc 32-bit dma fix
i915:
- two display fixes
- three gem fixes
sun4i:
- display regression fixes
nouveau:
- display regression fix
virtio-gpu:
- dumb airlied ioctl fix"
* tag 'drm-fixes-for-v4.16-rc4' of git://people.freedesktop.org/~airlied/linux: (25 commits)
drm/amdgpu: skip ECC for SRIOV in gmc late_init
drm/amd/amdgpu: Correct VRAM width for APUs with GMC9
drm/amdgpu: fix&cleanups for wb_clear
drm/amdgpu: Correct sdma_v4 get_wptr(v2)
drm/amd/powerplay: fix power over limit on Fiji
drm/amdgpu:Fixed wrong emit frame size for enc
drm/amdgpu: move WB_FREE to correct place
drm/amdgpu: only flush hotplug work without DC
drm/amd/display: check for ipp before calling cursor operations
drm/i915: Make global seqno known in i915_gem_request_execute tracepoint
drm/i915: Clear the in-use marker on execbuf failure
drm/i915/cnl: Fix PORT_TX_DW5/7 register address
drm/i915/audio: fix check for av_enc_map overflow
drm/i915: Fix rsvd2 mask when out-fence is returned
virtio-gpu: fix ioctl and expose the fixed status to userspace.
drm/sun4i: Protect the TCON pixel clocks
drm/sun4i: Enable the output on the pins (tcon0)
drm/nouveau: prefer XBGR2101010 for addfb ioctl
drm/radeon: insist on 32-bit DMA for Cedar on PPC64/PPC64LE
drm/amd/display: VGA black screen from s3 when attached to hook
...
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git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC fixes from Vineet Gupta:
- MCIP aka ARconnect fixes for SMP builds [Euginey]
- preventive fix for SLC (L2 cache) flushing [Euginey]
- Kconfig default fix [Ulf Magnusson]
- trailing semicolon fixes [Luis de Bethencourt]
- other assorted minor fixes
* tag 'arc-4.15-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: setup cpu possible mask according to possible-cpus dts property
ARC: mcip: update MCIP debug mask when the new cpu came online
ARC: mcip: halt GFRC counter when ARC cores halt
ARCv2: boot log: fix HS48 release number
arc: dts: use 'atmel' as manufacturer for at24 in axs10x_mb
ARC: Fix malformed ARC_EMUL_UNALIGNED default
ARC: boot log: Fix trailing semicolon
ARC: dw2 unwind: Fix trailing semicolon
ARC: Enable fatal signals on boot for dev platforms
ARCv2: Don't pretend we may set L-bit in STATUS32 with kflag instruction
ARCv2: cache: fix slc_entire_op: flush only instead of flush-n-inv
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Fix xfs_file_iomap_begin to trylock the ilock if IOMAP_NOWAIT is passed,
so that we don't block io_submit callers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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There is no reason to take the ilock exclusively at the start of
xfs_file_iomap_begin for direct I/O, given that it will be demoted
just before calling xfs_iomap_write_direct anyway.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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The iomap zeroing interface is smart enough to skip zeroing holes or
unwritten extents. Don't subvert this logic for reflink files.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Moving the code around broke this rare configuration.
Use this opportunity to finally call lapic reset from vcpu reset.
Reported-by: syzbot+fb7a33a4b6c35007a72b@syzkaller.appspotmail.com
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Fixes: 0b2e9904c159 ("KVM: x86: move LAPIC initialization after VMCS creation")
Cc: stable@vger.kernel.org
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
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Linux (among the others) has checks to make sure that certain features
aren't enabled on a certain family/model/stepping if the microcode version
isn't greater than or equal to a known good version.
By exposing the real microcode version, we're preventing buggy guests that
don't check that they are running virtualized (i.e., they should trust the
hypervisor) from disabling features that are effectively not buggy.
Suggested-by: Filippo Sironi <sironi@amazon.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Liran Alon <liran.alon@oracle.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
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Introduce kvm_get_msr_feature() to handle the msrs which are supported
by different vendors and sharing the same emulation logic.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: Liran Alon <liran.alon@oracle.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Wanpeng Li <wanpengli@tencent.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
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git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform drivers fixes from Andy Shevchenko:
- fix a regression on laptops like Dell XPS 9360 where keyboard stopped
working.
- correct sysfs wakeup attribute after removal of some drivers to
reflect that they are not able to wake system up anymore.
* tag 'platform-drivers-x86-v4.16-5' of git://git.infradead.org/linux-platform-drivers-x86:
platform/x86: wmi: Fix misuse of vsprintf extension %pULL
platform/x86: intel-hid: Reset wakeup capable flag on removal
platform/x86: intel-vbtn: Reset wakeup capable flag on removal
platform/x86: intel-vbtn: Only activate tablet mode switch on 2-in-1's
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The newly introudced ip_min_valid_pmtu variable is only used when
CONFIG_SYSCTL is set:
net/ipv4/route.c:135:12: error: 'ip_min_valid_pmtu' defined but not used [-Werror=unused-variable]
This moves it to the other variables like it, to avoid the harmless
warning.
Fixes: c7272c2f1229 ("net: ipv4: don't allow setting net.ipv4.route.min_pmtu below 68")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Pull MD bugfixes from Shaohua Li:
- fix raid5-ppl flush request handling hang from Artur
- fix a potential deadlock in raid5/10 reshape from BingJing
- fix a deadlock for dm-raid from Heinz
- fix two md-cluster of raid10 from Lidong and Guoqing
- fix a NULL deference problem in device removal from Neil
- fix a NULL deference problem in raid1/raid10 in specific condition
from Yufen
- other cleanup and fixes
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
md/raid1: fix NULL pointer dereference
md: fix a potential deadlock of raid5/raid10 reshape
md-cluster: choose correct label when clustered layout is not supported
md: raid5: avoid string overflow warning
raid5-ppl: fix handling flush requests
md raid10: fix NULL deference in handle_write_completed()
md: only allow remove_and_add_spares when no sync_thread running.
md: document lifetime of internal rdev pointer.
md: fix md_write_start() deadlock w/o metadata devices
MD: Free bioset when md_run fails
raid10: change the size of resync window for clustered raid
md-multipath: Use seq_putc() in multipath_status()
md/raid1: Fix trailing semicolon
md/raid5: simplify uninitialization of shrinker
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|
git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk
Pull printk fix from Petr Mladek:
"Make sure that we wake up userspace loggers. This fixes a race
introduced by the console waiter logic during this merge window"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
printk: Wake klogd when passing console_lock owner
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|
%pULL doesn't officially exist but %pUL does.
Miscellanea:
o Add missing newlines to a couple logging messages
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
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|
In order to determine if LFENCE is a serializing instruction on AMD
processors, MSR 0xc0011029 (MSR_F10H_DECFG) must be read and the state
of bit 1 checked. This patch will add support to allow a guest to
properly make this determination.
Add the MSR feature callback operation to svm.c and add MSR 0xc0011029
to the list of MSR-based features. If LFENCE is serializing, then the
feature is supported, allowing the hypervisor to set the value of the
MSR that guest will see. Support is also added to write (hypervisor only)
and read the MSR value for the guest. A write by the guest will result in
a #GP. A read by the guest will return the value as set by the host. In
this way, the support to expose the feature to the guest is controlled by
the hypervisor.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
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|
Provide a new KVM capability that allows bits within MSRs to be recognized
as features. Two new ioctls are added to the /dev/kvm ioctl routine to
retrieve the list of these MSRs and then retrieve their values. A kvm_x86_ops
callback is used to determine support for the listed MSR-based features.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[Tweaked documentation. - Radim]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
|
|
The vq->vq.num_free hasn't been changed when error happens,
so it shouldn't be changed when handling the error.
Fixes: 780bc7903a32 ("virtio_ring: Support DMA APIs")
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tiwei Bie <tiwei.bie@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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|
84676c1f21 ("genirq/affinity: assign vectors to all possible CPUs")
has switched to do irq vectors spread among all possible CPUs, so
pass num_possible_cpus() as max vecotrs to be assigned.
For example, in a 8 cores system, 0~3 online, 4~8 offline/not present,
see 'lscpu':
[ming@box]$lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 1
Core(s) per socket: 2
Socket(s): 2
NUMA node(s): 2
...
NUMA node0 CPU(s): 0-3
NUMA node1 CPU(s):
...
1) before this patch, follows the allocated vectors and their affinity:
irq 47, cpu list 0,4
irq 48, cpu list 1,6
irq 49, cpu list 2,5
irq 50, cpu list 3,7
2) after this patch, follows the allocated vectors and their affinity:
irq 43, cpu list 0
irq 44, cpu list 1
irq 45, cpu list 2
irq 46, cpu list 3
irq 47, cpu list 4
irq 48, cpu list 6
irq 49, cpu list 5
irq 50, cpu list 7
Cc: Keith Busch <keith.busch@intel.com>
Cc: Sagi Grimberg <sagi@grimberg.me>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <keith.busch@intel.com>
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|
Triggering PPC EEH detection and handling requires a memory mapped read
failure. The NVMe driver removed the periodic health check MMIO, so
there's no early detection mechanism to trigger the recovery. Instead,
the detection now happens when the nvme driver handles an IO timeout
event. This takes the pci channel offline, so we do not want the driver
to proceed with escalating its own recovery efforts that may conflict
with the EEH handler.
This patch ensures the driver will observe the channel was set to offline
after a failed MMIO read and resets the IO timer so the EEH handler has
a chance to recover the device.
Signed-off-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
[updated change log]
Signed-off-by: Keith Busch <keith.busch@intel.com>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"The only core change is the fix for possible memory corruption by ALSA
ctl API since 4.14 kernel due to a thinko.
The rest are all device-specific: in addition to the usual suspects
(HD-audio and USB-audio fixups), a few LPE HDMI audio fixes came in at
this time"
* tag 'sound-4.16-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: x86: Fix potential crash at error path
ALSA: x86: Fix missing spinlock and mutex initializations
ALSA: control: Fix memory corruption risk in snd_ctl_elem_read
ALSA: hda - Fix pincfg at resume on Lenovo T470 dock
ALSA: usb-audio: Add a quirck for B&W PX headphones
ALSA: hda: Add a power_save blacklist
ALSA: x86: hdmi: Add single_port option for compatible behavior
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|
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Two smallish pin control fixes: one actual code fix for the Meson and
a MAINTAINERS update.
Summary:
- fix a pin group on the Meson
- assign maintainers for Freescale/NXP pin controllers"
* tag 'pinctrl-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
MAINTAINERS: add Freescale pin controllers
pinctrl: meson-axg: adjust uart_ao_b pin group naming
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Fix up device tree properties readout caused by my own refactorings"
* tag 'gpio-v4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: Handle deferred probing in of_find_gpio() properly
gpiolib: Keep returning EPROBE_DEFER when we should
|
|
Fix a typo in pkt_start_recovery.
Fixes: 74d46992e0d9 ("block: replace bi_bdev with a gendisk pointer and partitions index")
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jiufei Xue <jiufei.xue@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
bio_devname use __bdevname to display the device name, and can
only show the major and minor of the part0,
Fix this by using disk_name to display the correct name.
Fixes: 74d46992e0d9 ("block: replace bi_bdev with a gendisk pointer and partitions index")
Reviewed-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jiufei Xue <jiufei.xue@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
The vm counters is counted in sectors, so we should do the conversation
in submit_bio.
Fixes: 74d46992e0d9 ("block: replace bi_bdev with a gendisk pointer and partitions index")
Cc: stable@vger.kernel.org
Reviewed-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jiufei Xue <jiufei.xue@linux.alibaba.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
There is lack of cache destroy operation for ceph_file_cachep
when failing from fscache register.
Signed-off-by: Chengguang Xu <cgxu519@icloud.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
|
|
In case of a failed write request (all retries failed) and when using
libata, the SCSI error handler calls scsi_finish_command(). In the
case of blk-mq this means that scsi_mq_done() does not get called,
that blk_mq_complete_request() does not get called and also that the
mq-deadline .completed_request() method is not called. This results in
the target zone of the failed write request being left in a locked
state, preventing that any new write requests are issued to the same
zone.
Fix this by replacing the .completed_request() method with the
.finish_request() method as this method is always called whether or
not a request completes successfully. Since the .finish_request()
method is only called by the blk-mq core if a .prepare_request()
method exists, add a dummy .prepare_request() method.
Fixes: 5700f69178e9 ("mq-deadline: Introduce zone locking support")
Cc: Hannes Reinecke <hare@suse.com>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
[ bvanassche: edited patch description ]
Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
|
|
We already have xmalloc(), xcalloc(), and xrealloc((). Add xstrdup()
as well to save tedious error handling.
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
Currently, sparse issues warnings on code using an attribute
it doesn't know about.
One of the problem with this is that these warnings have no
value for the developer, it's just noise for him. At best these
warnings tell something about some deficiencies of sparse itself
but not about a potential problem with code analyzed.
A second problem with this is that sparse release are, alas,
less frequent than new attributes are added to GCC.
So, avoid the noise by asking sparse to not warn about
attributes it doesn't know about.
Reference: https://marc.info/?l=linux-sparse&m=151871600016790
Reference: https://marc.info/?l=linux-sparse&m=151871725417322
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
The comment above the silentoldconfig invocation is outdated.
'make oldconfig' updates just .config and doesn't touch the
include/config/ tree.
This came up in https://lkml.org/lkml/2018/2/12/415.
While fixing the comment, make it more informative by explaining the
purpose of the unfortunately named silentoldconfig.
I can't make sense of the comment re. auto.conf.cmd and a cleaned tree.
include/config/auto.conf and include/config/auto.conf.cmd are both
created simultaneously by silentoldconfig (in
scripts/kconfig/confdata.c, by conf_write_autoconf()), and nothing seems
to remove auto.conf.cmd that wouldn't remove auto.conf. Remove that part
of the comment rather than blindly copying it. It might be a leftover
from an older way of doing things.
The include/config/auto.conf.cmd prerequisite might be there to ensure
that silentoldconfig gets rerun if conf_write_autoconf() fails between
writing out auto.conf.cmd and auto.conf (a comment in the function
indicates that auto.conf is deliberately written out last to mark
completion of the operation). It seems the Makefile dependency between
include/config/auto.conf and .config would already take care of that
though, since include/config/auto.conf would still be out of date re.
.config if the operation fails.
Cop out and leave the prerequisite in for now.
Signed-off-by: Ulf Magnusson <ulfalizer@gmail.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
If we have a file with 2 (or more) hard links in the same directory,
remove one of the hard links, create a new file (or link an existing file)
in the same directory with the name of the removed hard link, and then
finally fsync the new file, we end up with a log that fails to replay,
causing a mount failure.
Example:
$ mkfs.btrfs -f /dev/sdb
$ mount /dev/sdb /mnt
$ mkdir /mnt/testdir
$ touch /mnt/testdir/foo
$ ln /mnt/testdir/foo /mnt/testdir/bar
$ sync
$ unlink /mnt/testdir/bar
$ touch /mnt/testdir/bar
$ xfs_io -c "fsync" /mnt/testdir/bar
<power failure>
$ mount /dev/sdb /mnt
mount: mount(2) failed: /mnt: No such file or directory
When replaying the log, for that example, we also see the following in
dmesg/syslog:
[71813.671307] BTRFS info (device dm-0): failed to delete reference to bar, inode 258 parent 257
[71813.674204] ------------[ cut here ]------------
[71813.675694] BTRFS: Transaction aborted (error -2)
[71813.677236] WARNING: CPU: 1 PID: 13231 at fs/btrfs/inode.c:4128 __btrfs_unlink_inode+0x17b/0x355 [btrfs]
[71813.679669] Modules linked in: btrfs xfs f2fs dm_flakey dm_mod dax ghash_clmulni_intel ppdev pcbc aesni_intel aes_x86_64 crypto_simd cryptd glue_helper evdev psmouse i2c_piix4 parport_pc i2c_core pcspkr sg serio_raw parport button sunrpc loop autofs4 ext4 crc16 mbcache jbd2 zstd_decompress zstd_compress xxhash raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor raid6_pq libcrc32c crc32c_generic raid1 raid0 multipath linear md_mod ata_generic sd_mod virtio_scsi ata_piix libata virtio_pci virtio_ring crc32c_intel floppy virtio e1000 scsi_mod [last unloaded: btrfs]
[71813.679669] CPU: 1 PID: 13231 Comm: mount Tainted: G W 4.15.0-rc9-btrfs-next-56+ #1
[71813.679669] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.10.2-0-g5f4c7b1-prebuilt.qemu-project.org 04/01/2014
[71813.679669] RIP: 0010:__btrfs_unlink_inode+0x17b/0x355 [btrfs]
[71813.679669] RSP: 0018:ffffc90001cef738 EFLAGS: 00010286
[71813.679669] RAX: 0000000000000025 RBX: ffff880217ce4708 RCX: 0000000000000001
[71813.679669] RDX: 0000000000000000 RSI: ffffffff81c14bae RDI: 00000000ffffffff
[71813.679669] RBP: ffffc90001cef7c0 R08: 0000000000000001 R09: 0000000000000001
[71813.679669] R10: ffffc90001cef5e0 R11: ffffffff8343f007 R12: ffff880217d474c8
[71813.679669] R13: 00000000fffffffe R14: ffff88021ccf1548 R15: 0000000000000101
[71813.679669] FS: 00007f7cee84c480(0000) GS:ffff88023fc80000(0000) knlGS:0000000000000000
[71813.679669] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[71813.679669] CR2: 00007f7cedc1abf9 CR3: 00000002354b4003 CR4: 00000000001606e0
[71813.679669] Call Trace:
[71813.679669] btrfs_unlink_inode+0x17/0x41 [btrfs]
[71813.679669] drop_one_dir_item+0xfa/0x131 [btrfs]
[71813.679669] add_inode_ref+0x71e/0x851 [btrfs]
[71813.679669] ? __lock_is_held+0x39/0x71
[71813.679669] ? replay_one_buffer+0x53/0x53a [btrfs]
[71813.679669] replay_one_buffer+0x4a4/0x53a [btrfs]
[71813.679669] ? rcu_read_unlock+0x3a/0x57
[71813.679669] ? __lock_is_held+0x39/0x71
[71813.679669] walk_up_log_tree+0x101/0x1d2 [btrfs]
[71813.679669] walk_log_tree+0xad/0x188 [btrfs]
[71813.679669] btrfs_recover_log_trees+0x1fa/0x31e [btrfs]
[71813.679669] ? replay_one_extent+0x544/0x544 [btrfs]
[71813.679669] open_ctree+0x1cf6/0x2209 [btrfs]
[71813.679669] btrfs_mount_root+0x368/0x482 [btrfs]
[71813.679669] ? trace_hardirqs_on_caller+0x14c/0x1a6
[71813.679669] ? __lockdep_init_map+0x176/0x1c2
[71813.679669] ? mount_fs+0x64/0x10b
[71813.679669] mount_fs+0x64/0x10b
[71813.679669] vfs_kern_mount+0x68/0xce
[71813.679669] btrfs_mount+0x13e/0x772 [btrfs]
[71813.679669] ? trace_hardirqs_on_caller+0x14c/0x1a6
[71813.679669] ? __lockdep_init_map+0x176/0x1c2
[71813.679669] ? mount_fs+0x64/0x10b
[71813.679669] mount_fs+0x64/0x10b
[71813.679669] vfs_kern_mount+0x68/0xce
[71813.679669] do_mount+0x6e5/0x973
[71813.679669] ? memdup_user+0x3e/0x5c
[71813.679669] SyS_mount+0x72/0x98
[71813.679669] entry_SYSCALL_64_fastpath+0x1e/0x8b
[71813.679669] RIP: 0033:0x7f7cedf150ba
[71813.679669] RSP: 002b:00007ffca71da688 EFLAGS: 00000206
[71813.679669] Code: 7f a0 e8 51 0c fd ff 48 8b 43 50 f0 0f ba a8 30 2c 00 00 02 72 17 41 83 fd fb 74 11 44 89 ee 48 c7 c7 7d 11 7f a0 e8 38 f5 8d e0 <0f> ff 44 89 e9 ba 20 10 00 00 eb 4d 48 8b 4d b0 48 8b 75 88 4c
[71813.679669] ---[ end trace 83bd473fc5b4663b ]---
[71813.854764] BTRFS: error (device dm-0) in __btrfs_unlink_inode:4128: errno=-2 No such entry
[71813.886994] BTRFS: error (device dm-0) in btrfs_replay_log:2307: errno=-2 No such entry (Failed to recover log tree)
[71813.903357] BTRFS error (device dm-0): cleaner transaction attach returned -30
[71814.128078] BTRFS error (device dm-0): open_ctree failed
This happens because the log has inode reference items for both inode 258
(the first file we created) and inode 259 (the second file created), and
when processing the reference item for inode 258, we replace the
corresponding item in the subvolume tree (which has two names, "foo" and
"bar") witht he one in the log (which only has one name, "foo") without
removing the corresponding dir index keys from the parent directory.
Later, when processing the inode reference item for inode 259, which has
a name of "bar" associated to it, we notice that dir index entries exist
for that name and for a different inode, so we attempt to unlink that
name, which fails because the inode reference item for inode 258 no longer
has the name "bar" associated to it, making a call to btrfs_unlink_inode()
fail with a -ENOENT error.
Fix this by unlinking all the names in an inode reference item from a
subvolume tree that are not present in the inode reference item found in
the log tree, before overwriting it with the item from the log tree.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
|
|
If in the same transaction we rename a special file (fifo, character/block
device or symbolic link), create a hard link for it having its old name
then sync the log, we will end up with a log that can not be replayed and
at when attempting to replay it, an EEXIST error is returned and mounting
the filesystem fails. Example scenario:
$ mkfs.btrfs -f /dev/sdc
$ mount /dev/sdc /mnt
$ mkdir /mnt/testdir
$ mkfifo /mnt/testdir/foo
# Make sure everything done so far is durably persisted.
$ sync
# Create some unrelated file and fsync it, this is just to create a log
# tree. The file must be in the same directory as our special file.
$ touch /mnt/testdir/f1
$ xfs_io -c "fsync" /mnt/testdir/f1
# Rename our special file and then create a hard link with its old name.
$ mv /mnt/testdir/foo /mnt/testdir/bar
$ ln /mnt/testdir/bar /mnt/testdir/foo
# Create some other unrelated file and fsync it, this is just to persist
# the log tree which was modified by the previous rename and link
# operations. Alternatively we could have modified file f1 and fsync it.
$ touch /mnt/f2
$ xfs_io -c "fsync" /mnt/f2
<power failure>
$ mount /dev/sdc /mnt
mount: mount /dev/sdc on /mnt failed: File exists
This happens because when both the log tree and the subvolume's tree have
an entry in the directory "testdir" with the same name, that is, there
is one key (258 INODE_REF 257) in the subvolume tree and another one in
the log tree (where 258 is the inode number of our special file and 257
is the inode for directory "testdir"). Only the data of those two keys
differs, in the subvolume tree the index field for inode reference has
a value of 3 while the log tree it has a value of 5. Because the same key
exists in both trees, but have different index, the log replay fails with
an -EEXIST error when attempting to replay the inode reference from the
log tree.
Fix this by setting the last_unlink_trans field of the inode (our special
file) to the current transaction id when a hard link is created, as this
forces logging the parent directory inode, solving the conflict at log
replay time.
A new generic test case for fstests was also submitted.
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
|
|
When doing an incremental send of a filesystem with the no-holes feature
enabled, we end up issuing a write operation when using the no data mode
send flag, instead of issuing an update extent operation. Fix this by
issuing the update extent operation instead.
Trivial reproducer:
$ mkfs.btrfs -f -O no-holes /dev/sdc
$ mkfs.btrfs -f /dev/sdd
$ mount /dev/sdc /mnt/sdc
$ mount /dev/sdd /mnt/sdd
$ xfs_io -f -c "pwrite -S 0xab 0 32K" /mnt/sdc/foobar
$ btrfs subvolume snapshot -r /mnt/sdc /mnt/sdc/snap1
$ xfs_io -c "fpunch 8K 8K" /mnt/sdc/foobar
$ btrfs subvolume snapshot -r /mnt/sdc /mnt/sdc/snap2
$ btrfs send /mnt/sdc/snap1 | btrfs receive /mnt/sdd
$ btrfs send --no-data -p /mnt/sdc/snap1 /mnt/sdc/snap2 \
| btrfs receive -vv /mnt/sdd
Before this change the output of the second receive command is:
receiving snapshot snap2 uuid=f6922049-8c22-e544-9ff9-fc6755918447...
utimes
write foobar, offset 8192, len 8192
utimes foobar
BTRFS_IOC_SET_RECEIVED_SUBVOL uuid=f6922049-8c22-e544-9ff9-...
After this change it is:
receiving snapshot snap2 uuid=564d36a3-ebc8-7343-aec9-bf6fda278e64...
utimes
update_extent foobar: offset=8192, len=8192
utimes foobar
BTRFS_IOC_SET_RECEIVED_SUBVOL uuid=564d36a3-ebc8-7343-aec9-bf6fda278e64...
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
|
