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This bug was found by a static code checker tool for copy paste
problems.
Signed-off-by: Maninder Singh <maninder1.s@samsung.com>
Signed-off-by: Vaneet Narang <v.narang@samsung.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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On a 32-bit platform, the value of n_blcoks_count may be wrong during
the file system is resized to size larger than 2^32 blocks. This may
caused the superblock being corrupted with zero blocks count.
Fixes: 1c6bd7173d66
Signed-off-by: Jerry Lee <jerrylee@qnap.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org # 3.7+
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When upgrading from old format, try to set project id
to old file first time, it will return EOVERFLOW, but if
that file is dirtied(touch etc), changing project id will
be allowed, this might be confusing for users, we could
try to expand @i_extra_isize here too.
Reported-by: Zhang Yi <yi.zhang@huawei.com>
Signed-off-by: Miao Xie <miaoxie@huawei.com>
Signed-off-by: Wang Shilong <wshilong@ddn.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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Clean up some goto statement, make ext4_expand_extra_isize_ea() clearer.
Signed-off-by: Miao Xie <miaoxie@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Wang Shilong <wshilong@ddn.com>
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Current ext4_expand_extra_isize just tries to expand extra isize, if
someone is holding xattr lock or some check fails, it will give up.
So rename its name to ext4_try_to_expand_extra_isize.
Besides that, we clean up unnecessary check and move some relative checks
into it.
Signed-off-by: Miao Xie <miaoxie@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Wang Shilong <wshilong@ddn.com>
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We should avoid the contention between the i_extra_isize update and
the inline data insertion, so move the xattr trylock in front of
i_extra_isize update.
Signed-off-by: Miao Xie <miaoxie@huawei.com>
Reviewed-by: Wang Shilong <wshilong@ddn.com>
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ext4_xattr_inode_read() currently reads each block sequentially while
waiting for io operation to complete before moving on to the next
block. This prevents request merging in block layer.
Add a ext4_bread_batch() function that starts reads for all blocks
then optionally waits for them to complete. A similar logic is used
in ext4_find_entry(), so update that code to use the new function.
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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When an xattr block has a single reference, block is updated inplace
and it is reinserted to the cache. Later, a cache lookup is performed
to see whether an existing block has the same contents. This cache
lookup will most of the time return the just inserted entry so
deduplication is not achieved.
Running the following test script will produce two xattr blocks which
can be observed in "File ACL: " line of debugfs output:
mke2fs -b 1024 -I 128 -F -O extent /dev/sdb 1G
mount /dev/sdb /mnt/sdb
touch /mnt/sdb/{x,y}
setfattr -n user.1 -v aaa /mnt/sdb/x
setfattr -n user.2 -v bbb /mnt/sdb/x
setfattr -n user.1 -v aaa /mnt/sdb/y
setfattr -n user.2 -v bbb /mnt/sdb/y
debugfs -R 'stat x' /dev/sdb | cat
debugfs -R 'stat y' /dev/sdb | cat
This patch defers the reinsertion to the cache so that we can locate
other blocks with the same contents.
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
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ext4_alloc_file_blocks() does not use its mode parameter. Remove it.
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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After commit 62d1034f53e3 ("fortify: use WARN instead of BUG for now"),
we get a warning about possible stack overflow from a memcpy that
was not strictly bounded to the size of the local variable:
inlined from 'ext4_mb_seq_groups_show' at fs/ext4/mballoc.c:2322:2:
include/linux/string.h:309:9: error: '__builtin_memcpy': writing between 161 and 1116 bytes into a region of size 160 overflows the destination [-Werror=stringop-overflow=]
We actually had a bug here that would have been found by the warning,
but it was already fixed last year in commit 30a9d7afe70e ("ext4: fix
stack memory corruption with 64k block size").
This replaces the fixed-length structure on the stack with a variable-length
structure, using the correct upper bound that tells the compiler that
everything is really fine here. I also change the loop count to check
for the same upper bound for consistency, but the existing code is
already correct here.
Note that while clang won't allow certain kinds of variable-length arrays
in structures, this particular instance is fine, as the array is at the
end of the structure, and the size is strictly bounded.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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The dir_nlink feature has been enabled by default for new ext4
filesystems since e2fsprogs-1.41 in 2008, and was automatically
enabled by the kernel for older ext4 filesystems since the
dir_nlink feature was added with ext4 in kernel 2.6.28+ when
the subdirectory count exceeded EXT4_LINK_MAX-1.
Automatically adding the file system features such as dir_nlink is
generally frowned upon, since it could cause the file system to not be
mountable on older kernel, thus preventing the administrator from
rolling back to an older kernel if necessary.
In this case, the administrator might also want to disable the feature
because glibc's fts_read() function does not correctly optimize
directory traversal for directories that use st_nlinks field of 1 to
indicate that the number of links in the directory are not tracked by
the file system, and could fail to traverse the full directory
hierarchy. Fortunately, in the past ten years very few users have
complained about incomplete file system traversal by glibc's
fts_read().
This commit also changes ext4_inc_count() to allow i_nlinks to reach
the full EXT4_LINK_MAX links on the parent directory (including "."
and "..") before changing i_links_count to be 1.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=196405
Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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I get a static checker warning:
fs/ext4/ext4.h:3091 ext4_set_de_type()
error: buffer overflow 'ext4_type_by_mode' 15 <= 15
It seems unlikely that we would hit this read overflow in real life, but
it's also simple enough to make the array 16 bytes instead of 15.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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ext4_find_unwritten_pgoff() does not properly handle a situation when
starting index is in the middle of a page and blocksize < pagesize. The
following command shows the bug on filesystem with 1k blocksize:
xfs_io -f -c "falloc 0 4k" \
-c "pwrite 1k 1k" \
-c "pwrite 3k 1k" \
-c "seek -a -r 0" foo
In this example, neither lseek(fd, 1024, SEEK_HOLE) nor lseek(fd, 2048,
SEEK_DATA) will return the correct result.
Fix the problem by neglecting buffers in a page before starting offset.
Reported-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jan Kara <jack@suse.cz>
CC: stable@vger.kernel.org # 3.8+
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We've changed the discard command handling into parallel manner.
But, in this change, I forgot decreasing the usage count of the bio
which was used to send discard request. I'm sorry about that.
Fixes: a015434480dc ("ext4: send parallel discards on commit completions")
Signed-off-by: Daeho Jeong <daeho.jeong@samsung.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
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For some odd reason, it forces a byte-by-byte copy of each field. A
plain old swap() on most of these fields would be more efficient. We
do need to retain the memswap of i_data however as that field is an array.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Jan Kara <jack@suse.cz>
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For Lustre, if ea_inode fails in hash validation but passes parent
inode and generation checks, it won't be added to the cache as well
as the error "-EFSCORRUPTED" should be cleared, otherwise it will
cause "Structure needs cleaning" when running getfattr command.
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-9723
Cc: stable@vger.kernel.org
Fixes: dec214d00e0d78a08b947d7dccdfdb84407a9f4d
Signed-off-by: Emoly Liu <emoly.liu@intel.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Reviewed-by: tahsin@google.com
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When new directory 'DIR1' is created in a directory 'DIR0' with SGID bit
set, DIR1 is expected to have SGID bit set (and owning group equal to
the owning group of 'DIR0'). However when 'DIR0' also has some default
ACLs that 'DIR1' inherits, setting these ACLs will result in SGID bit on
'DIR1' to get cleared if user is not member of the owning group.
Fix the problem by moving posix_acl_update_mode() out of
__ext4_set_acl() into ext4_set_acl(). That way the function will not be
called when inheriting ACLs which is what we want as it prevents SGID
bit clearing and the mode has been properly set by posix_acl_create()
anyway.
Fixes: 073931017b49d9458aa351605b43a7e34598caef
CC: stable@vger.kernel.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
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When changing a file's acl mask, __ext4_set_acl() will first set the group
bits of i_mode to the value of the mask, and only then set the actual
extended attribute representing the new acl.
If the second part fails (due to lack of space, for example) and the file
had no acl attribute to begin with, the system will from now on assume
that the mask permission bits are actual group permission bits, potentially
granting access to the wrong users.
Prevent this by only changing the inode mode after the acl has been set.
Signed-off-by: Ernesto A. Fernández <ernesto.mnd.fernandez@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
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Two variables in ext4_inode_info, i_reserved_meta_blocks and
i_allocated_meta_blocks, are unused. Removing them saves a little
memory per in-memory inode and cleans up clutter in several tracepoints.
Adjust tracepoint output from ext4_alloc_da_blocks() for consistency
and fix a typo and whitespace near these changes.
Signed-off-by: Eric Whitney <enwlinux@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
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Commit 914f82a32d0268847 "ext4: refactor direct IO code" deleted
ext4_ext_direct_IO(), but references to that function remain in
comments. Update them to refer to ext4_direct_IO_write().
Signed-off-by: Eric Whitney <enwlinux@gmail.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Reviewed-by: Jan Kara <jack@suse.cz>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fixes from Thomas Gleixner:
"A small set of x86 fixes:
- prevent the kernel from using the EFI reboot method when EFI is
disabled.
- two patches addressing clang issues"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/boot: Disable the address-of-packed-member compiler warning
x86/efi: Fix reboot_mode when EFI runtime services are disabled
x86/boot: #undef memcpy() et al in string.c
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Thomas Gleixner:
"Two patches addressing build warnings caused by inconsistent kernel
doc comments"
* 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/wait: Clean up some documentation warnings
sched/core: Fix some documentation build warnings
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf fixes from Thomas Gleixner:
"A couple of fixes for performance counters and kprobes:
- a series of small patches which make the uncore performance
counters on Skylake server systems work correctly
- add a missing instruction slot release to the failure path of
kprobes"
* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
kprobes/x86: Release insn_slot in failure path
perf/x86/intel/uncore: Fix missing marker for skx_uncore_cha_extra_regs
perf/x86/intel/uncore: Fix SKX CHA event extra regs
perf/x86/intel/uncore: Remove invalid Skylake server CHA filter field
perf/x86/intel/uncore: Fix Skylake server CHA LLC_LOOKUP event umask
perf/x86/intel/uncore: Fix Skylake server PCU PMU event format
perf/x86/intel/uncore: Fix Skylake UPI PMU event masks
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fix from Thomas Gleixner:
"Fix for a regression caused by the conversion of x86 to the generic
hotplug code.
Instead of doing a plain single line revert, this adds a pile of
comments so the semantics of the force argument are clear"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
genirq/cpuhotplug: Revert "Set force affinity flag on hotplug migration"
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git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree fixes from Rob Herring:
"Two small DT fixes:
- Fix error handling in of_irq_to_resource_table() due to
of_irq_to_resource() error return changes.
- Fix dtx_diff script due to dts include path changes"
* tag 'devicetree-fixes-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
of: irq: fix of_irq_to_resource() error check
scripts/dtc: dtx_diff - update include dts paths to match build
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Pull NFS client fixes from Anna Schumaker:
"More NFS client bugfixes for 4.13.
Most of these fix locking bugs that Ben and Neil noticed, but I also
have a patch to fix one more access bug that was reported after last
week.
Stable fixes:
- Fix a race where CB_NOTIFY_LOCK fails to wake a waiter
- Invalidate file size when taking a lock to prevent corruption
Other fixes:
- Don't excessively generate tiny writes with fallocate
- Use the raw NFS access mask in nfs4_opendata_access()"
* tag 'nfs-for-4.13-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
NFSv4.1: Fix a race where CB_NOTIFY_LOCK fails to wake a waiter
NFS: Optimize fallocate by refreshing mapping when needed.
NFS: invalidate file size when taking a lock.
NFS: Use raw NFS access mask in nfs4_opendata_access()
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Pull xfs fixes from Darrick Wong:
- fix firstfsb variables that we left uninitialized, which could lead
to locking problems.
- check for NULL metadata buffer pointers before using them.
- don't allow btree cursor manipulation if the btree block is corrupt.
Better to just shut down.
- fix infinite loop problems in quotacheck.
- fix buffer overrun when validating directory blocks.
- fix deadlock problem in bunmapi.
* tag 'xfs-4.13-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: fix multi-AG deadlock in xfs_bunmapi
xfs: check that dir block entries don't off the end of the buffer
xfs: fix quotacheck dquot id overflow infinite loop
xfs: check _alloc_read_agf buffer pointer before using
xfs: set firstfsb to NULLFSBLOCK before feeding it to _bmapi_write
xfs: check _btree_check_block value
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Pull KVM fixes from Paolo Bonzini:
"s390:
- SRCU fix
PPC:
- host crash fixes
x86:
- bugfixes, including making nested posted interrupts really work
Generic:
- tweaks to kvm_stat and to uevents"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: LAPIC: Fix reentrancy issues with preempt notifiers
tools/kvm_stat: add '-f help' to get the available event list
tools/kvm_stat: use variables instead of hard paths in help output
KVM: nVMX: Fix loss of L2's NMI blocking state
KVM: nVMX: Fix posted intr delivery when vcpu is in guest mode
x86: irq: Define a global vector for nested posted interrupts
KVM: x86: do mask out upper bits of PAE CR3
KVM: make pid available for uevents without debugfs
KVM: s390: take srcu lock when getting/setting storage keys
KVM: VMX: remove unused field
KVM: PPC: Book3S HV: Fix host crash on changing HPT size
KVM: PPC: Book3S HV: Enable TM before accessing TM registers
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git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
"Three minor cleanups for xen related drivers"
* tag 'for-linus-4.13b-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen: dont fiddle with event channel masking in suspend/resume
xen: selfballoon: remove unnecessary static in frontswap_selfshrink()
xen: Drop un-informative message during boot
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"I'd been collecting these whilst we debugged a CPU hotplug failure,
but we ended up diagnosing that one to tglx, who has taken a fix via
the -tip tree separately.
We're seeing some NFS issues that we haven't gotten to the bottom of
yet, and we've uncovered some issues with our backtracing too so there
might be another fixes pull before we're done.
Summary:
- Ensure we have a guard page after the kernel image in vmalloc
- Fix incorrect prefetch stride in copy_page
- Ensure irqs are disabled in die()
- Fix for event group validation in QCOM L2 PMU driver
- Fix requesting of PMU IRQs on AMD Seattle
- Minor cleanups and fixes"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mmu: Place guard page after mapping of kernel image
drivers/perf: arm_pmu: Request PMU SPIs with IRQF_PER_CPU
arm64: sysreg: Fix unprotected macro argmuent in write_sysreg
perf: qcom_l2: fix column exclusion check
arm64/lib: copy_page: use consistent prefetch stride
arm64/numa: Drop duplicate message
perf: Convert to using %pOF instead of full_name
arm64: Convert to using %pOF instead of full_name
arm64: traps: disable irq in die()
arm64: atomics: Remove '&' from '+&' asm constraint in lse atomics
arm64: uaccess: Remove redundant __force from addr cast in __range_ok
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"The highlight is Ben's patch to work around a host killing bug when
running KVM guests with the Radix MMU on Power9. See the long change
log of that commit for more detail.
And then three fairly minor fixes:
- fix of_node_put() underflow during reconfig remove, using old DLPAR
tools.
- fix recently introduced ld version check with 64-bit LE-only
toolchain.
- free the subpage_prot_table correctly, avoiding a memory leak.
Thanks to: Aneesh Kumar K.V, Benjamin Herrenschmidt, Laurent Vivier"
* tag 'powerpc-4.13-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm/hash: Free the subpage_prot_table correctly
powerpc/Makefile: Fix ld version check with 64-bit LE-only toolchain
powerpc/pseries: Fix of_node_put() underflow during reconfig remove
powerpc/mm/radix: Workaround prefetch issue with KVM
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nfs4_retry_setlk() sets the task's state to TASK_INTERRUPTIBLE within the
same region protected by the wait_queue's lock after checking for a
notification from CB_NOTIFY_LOCK callback. However, after releasing that
lock, a wakeup for that task may race in before the call to
freezable_schedule_timeout_interruptible() and set TASK_WAKING, then
freezable_schedule_timeout_interruptible() will set the state back to
TASK_INTERRUPTIBLE before the task will sleep. The result is that the task
will sleep for the entire duration of the timeout.
Since we've already set TASK_INTERRUPTIBLE in the locked section, just use
freezable_schedule_timout() instead.
Fixes: a1d617d8f134 ("nfs: allow blocking locks to be awoken by lock callbacks")
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Cc: stable@vger.kernel.org # v4.9+
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fixes from Herbert Xu:
- remove broken dt bindings in inside-secure
- fix authencesn crash when used with digest_null
- fix cavium/nitrox firmware path
- fix SHA3 failure in brcm
- fix Kconfig dependency for brcm
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
crypto: authencesn - Fix digest_null crash
crypto: brcm - remove BCM_PDC_MBOX dependency in Kconfig
Documentation/bindings: crypto: remove the dma-mask property
crypto: inside-secure - do not parse the dma mask from dt
crypto: cavium/nitrox - Change in firmware path.
crypto: brcm - Fix SHA3-512 algorithm failure
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
Pull btrfs fixes from David Sterba:
"Fixes addressing problems reported by users, and there's one more
regression fix"
* 'for-4.13-part3' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
btrfs: round down size diff when shrinking/growing device
Btrfs: fix early ENOSPC due to delalloc
btrfs: fix lockup in find_free_extent with read-only block groups
Btrfs: fix dir item validation when replaying xattr deletes
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Pull MD fixes from Shaohua Li:
"This fixes several bugs, three of them are marked for stable:
- an initialization issue fixed by Ming
- a bio clone race issue fixed by me
- an async tx flush issue fixed by Ofer
- other cleanups"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md:
MD: fix warnning for UP case
md/raid5: add thread_group worker async_tx_issue_pending_all
md: simplify code with bio_io_error
md/raid1: fix writebehind bio clone
md: raid1-10: move raid1/raid10 common code into raid1-10.c
md: raid1/raid10: initialize bvec table via bio_add_page()
md: remove 'idx' from 'struct resync_pages'
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
- a few DM integrity fixes that improve performance. One that address
inefficiencies in the on-disk journal device layout. Another that
makes use of the block layer's on-stack plugging when writing the
journal.
- a dm-bufio fix for the blk_status_t conversion that went in during
the merge window.
- a few DM raid fixes that address correctness when suspending the
device and a validation fix for validation that occurs during device
activation.
- a couple DM zoned target fixes. Important one being the fix to not
use GFP_KERNEL in the IO path due to concerns about deadlock in
low-memory conditions (e.g. swap over a DM zoned device, etc).
- a DM DAX device fix to make sure dm_dax_flush() is called if the
underlying DAX device is operating as a write cache.
* tag 'for-4.13/dm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm, dax: Make sure dm_dax_flush() is called if device supports it
dm verity fec: fix GFP flags used with mempool_alloc()
dm zoned: use GFP_NOIO in I/O path
dm zoned: remove test for impossible REQ_OP_FLUSH conditions
dm raid: bump target version
dm raid: avoid mddev->suspended access
dm raid: fix activation check in validate_raid_redundancy()
dm raid: remove WARN_ON() in raid10_md_layout_to_format()
dm bufio: fix error code in dm_bufio_write_dirty_buffers()
dm integrity: test for corrupted disk format during table load
dm integrity: WARN_ON if variables representing journal usage get out of sync
dm integrity: use plugging when writing the journal
dm integrity: fix inefficient allocation of journal space
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Pull block fixes from Jens Axboe:
"A small collection of fixes that should go into this series. This
contains:
- NVMe pull request from Christoph, with various fixes for nvme
proper and nvme-fc.
- disable runtime PM for blk-mq for now.
With scsi now defaulting to using blk-mq, this reared its head as
an issue. Longer term we'll fix up runtime PM for blk-mq, for now
just disable it to prevent a hang on laptop resume for some folks.
- blk-mq CPU <-> hw queue map fix from Christoph.
- xen/blkfront pull request from Konrad, with two small fixes for the
blkfront driver.
- a few fixups for nbd from Joseph.
- a stable fix for pblk from Javier"
* 'for-linus' of git://git.kernel.dk/linux-block:
lightnvm: pblk: advance bio according to lba index
nvme: validate admin queue before unquiesce
nbd: clear disconnected on reconnect
nvme-pci: fix HMB size calculation
nvme-fc: revise TRADDR parsing
nvme-fc: address target disconnect race conditions in fcp io submit
nvme: fabrics commands should use the fctype field for data direction
nvme: also provide a UUID in the WWID sysfs attribute
xen/blkfront: always allocate grants first from per-queue persistent grants
xen-blkfront: fix mq start/stop race
blk-mq: map queues to all present CPUs
block: disable runtime-pm for blk-mq
xen-blkfront: Fix handling of non-supported operations
nbd: only set sndtimeo if we have a timeout set
nbd: take tx_lock before disconnecting
nbd: allow multiple disconnects to be sent
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
"Here are a couple of mmc fixes intended for v4.13-rc1.
I have also included a couple of cleanup patches in this pull request
for OMAP2+, related to the omap_hsmmc driver. The reason is because of
the changes are also depending on OMAP SoC specific code, so this
simplifies how to deal with this.
Summary:
MMC host:
- sunxi: Correct time phase settings
- omap_hsmmc: Clean up some dead code
- dw_mmc: Fix message printed for deprecated num-slots DT binding
- dw_mmc: Fix DT documentation"
* tag 'mmc-v4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
Documentation: dw-mshc: deprecate num-slots
mmc: dw_mmc: fix the wrong condition check of getting num-slots from DT
mmc: host: omap_hsmmc: remove unused platform callbacks
ARM: OMAP2+: hsmmc.c: Remove dead code
mmc: sunxi: Keep default timing phase settings for new timing mode
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When a lba either hits the cache or corresponds to an empty entry in the
L2P table, we need to advance the bio according to the position in which
the lba is located. Otherwise, we will copy data in the wrong page, thus
causing data corruption for the application.
In case of a cache hit, we assumed that bio->bi_iter.bi_idx would
contain the correct index, but this is no necessarily true. Instead, use
the local bio advance counter and iterator. This guarantees that lbas
hitting the cache are copied into the right bv_page.
In case of an empty L2P entry, we omitted to advance the bio. In the
cases when the same I/O also contains a cache hit, data corresponding
to this lba will be copied to the wrong bv_page. Fix this by advancing
the bio as we do in the case of a cache hit.
Fixes: a4bd217b4326 lightnvm: physical block device (pblk) target
Signed-off-by: Javier González <javier@javigon.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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The vast majority of virtual allocations in the vmalloc region are followed
by a guard page, which can help to avoid overruning on vma into another,
which may map a read-sensitive device.
This patch adds a guard page to the end of the kernel image mapping (i.e.
following the data/bss segments).
Cc: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
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The clang warning 'address-of-packed-member' is disabled for the general
kernel code, also disable it for the x86 boot code.
This suppresses a bunch of warnings like this when building with clang:
./arch/x86/include/asm/processor.h:535:30: warning: taking address of
packed member 'sp0' of class or structure 'x86_hw_tss' may result in an
unaligned pointer value [-Waddress-of-packed-member]
return this_cpu_read_stable(cpu_tss.x86_tss.sp0);
^~~~~~~~~~~~~~~~~~~
./arch/x86/include/asm/percpu.h:391:59: note: expanded from macro
'this_cpu_read_stable'
#define this_cpu_read_stable(var) percpu_stable_op("mov", var)
^~~
./arch/x86/include/asm/percpu.h:228:16: note: expanded from macro
'percpu_stable_op'
: "p" (&(var)));
^~~
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Cc: Doug Anderson <dianders@chromium.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20170725215053.135586-1-mka@chromium.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"These iare the fixes for 4.13-rc3: vmwgfx, exynos, i915, amdgpu,
nouveau, host1x and displayport fixes.
As expected people woke up this week, i915 didn't do an -rc2 pull so
got a bumper -rc3 pull, and Ben resurfaced on nouveau and fixed a
bunch of major crashers seen on Fedora 26, and there are a few vmwgfx
fixes as well.
Otherwise exynos had some regression fixes/cleanups, and amdgpu has an
rcu locking regression fix and a couple of minor fixes"
* tag 'drm-fixes-for-v4.13-rc3' of git://people.freedesktop.org/~airlied/linux: (44 commits)
drm/i915: Fix bad comparison in skl_compute_plane_wm.
drm/i915: Force CPU synchronisation even if userspace requests ASYNC
drm/i915: Only skip updating execobject.offset after error
drm/i915: Only mark the execobject as pinned on success
drm/i915: Remove assertion from raw __i915_vma_unpin()
drm/i915/cnl: Fix loadgen select programming on ddi vswing sequence
drm/i915: Fix scaler init during CRTC HW state readout
drm/i915/selftests: Fix an error handling path in 'mock_gem_device()'
drm/i915: Unbreak gpu reset vs. modeset locking
gpu: host1x: Free the IOMMU domain when there is no device to attach
drm/i915: Fix cursor updates on some platforms
drm/i915: Fix user ptr check size in eb_relocate_vma()
drm: exynos: mark pm functions as __maybe_unused
drm/exynos: select CEC_CORE if CEC_NOTIFIER
drm/exynos/hdmi: fix disable sequence
drm/exynos: mic: add a bridge at probe
drm/exynos/dsi: Remove error handling for bridge_node DT parsing
drm/exynos: dsi: do not try to find bridge
drm: exynos: hdmi: make of_device_ids const.
drm: exynos: constify mixer_match_types and *_mxr_drv_data.
...
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git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-fixes
Summary:
- fix probing fail issue of dsi driver without bridge device.
- fix disable sequence of hdmi driver.
- trivial cleanups.
* tag 'exynos-drm-fixes-for-v4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
drm: exynos: mark pm functions as __maybe_unused
drm/exynos: select CEC_CORE if CEC_NOTIFIER
drm/exynos/hdmi: fix disable sequence
drm/exynos: mic: add a bridge at probe
drm/exynos/dsi: Remove error handling for bridge_node DT parsing
drm/exynos: dsi: do not try to find bridge
drm: exynos: hdmi: make of_device_ids const.
drm: exynos: constify mixer_match_types and *_mxr_drv_data.
exynos_drm: Clean up duplicated assignment in exynos_drm_driver
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git://anongit.freedesktop.org/git/drm-intel into drm-fixes
i915 fixes for -rc3
Bit more than usual since we missed -rc2. 4x cc: stable, 2 gvt
patches, but all fairly minor stuff. Last minute rebase was to add a
few missing cc: stable, I did prep the pull this morning already and
made sure CI approves.
* tag 'drm-intel-fixes-2017-07-27' of git://anongit.freedesktop.org/git/drm-intel:
drm/i915: Fix bad comparison in skl_compute_plane_wm.
drm/i915: Force CPU synchronisation even if userspace requests ASYNC
drm/i915: Only skip updating execobject.offset after error
drm/i915: Only mark the execobject as pinned on success
drm/i915: Remove assertion from raw __i915_vma_unpin()
drm/i915/cnl: Fix loadgen select programming on ddi vswing sequence
drm/i915: Fix scaler init during CRTC HW state readout
drm/i915/selftests: Fix an error handling path in 'mock_gem_device()'
drm/i915: Unbreak gpu reset vs. modeset locking
drm/i915: Fix cursor updates on some platforms
drm/i915: Fix user ptr check size in eb_relocate_vma()
drm/i915/gvt: Extend KBL platform support in GVT-g
drm/i915/gvt: Fix the vblank timer close issue after shutdown VMs in reverse
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git://anongit.freedesktop.org/git/drm-misc into drm-fixes
Core Changes:
- dp: A few fixes in drm_dp_downstream_debug() (Chris)
- rockchip: sanitize the Kconfig dependencies (fallout from EXTCON) (Arnd)
- host1x: Free the iommu domain when attach_device fails (Paul)
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Paul Kocialkowski <contact@paulk.fr>
* tag 'drm-misc-fixes-2017-07-27' of git://anongit.freedesktop.org/git/drm-misc:
gpu: host1x: Free the IOMMU domain when there is no device to attach
drm/rockchip: fix Kconfig dependencies
drm/dp: Don't trust drm_dp_downstream_id()
drm/dp: Fix read pointer for drm_dp_downsteam_debug()
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These are two fixups for the suspend-to-idle handling in the ACPI
subsystem after recent changes in that area and two simple fixes of
the ACPI NUMA code.
Specifics:
- Add an ACPI module parameter to allow users to override the new
default behavior on some systems where the EC GPE is not disabled
during suspend-to-idle in case the EC on their systems generates
excessive wakeup events and they want to sacrifice some
functionality (like power button wakeups) for extra battery life
while suspended (Rafael Wysocki).
- Fix flushing of the outstanding EC work in the ACPI core
suspend-to-idle code (Rafael Wysocki).
- Add a missing include and fix a messed-up comment in the ACPI NUMA
code (Ross Zwisler)"
* tag 'acpi-4.13-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: NUMA: Fix typo in the full name of SRAT
ACPI: NUMA: add missing include in acpi_numa.h
ACPI / PM / EC: Flush all EC work in acpi_freeze_sync()
ACPI / EC: Add parameter to force disable the GPE on suspend
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* acpi-pm:
ACPI / PM / EC: Flush all EC work in acpi_freeze_sync()
ACPI / EC: Add parameter to force disable the GPE on suspend
* acpi-numa:
ACPI: NUMA: Fix typo in the full name of SRAT
ACPI: NUMA: add missing include in acpi_numa.h
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drm-intel-fixes
gvt-fixes-2017-07-26
- Turn on KBL support for more SKUs (Jianjun)
- Fix vblank timer close bug (Fred)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20170726075621.hrauvik62gi2jecj@zhen-hp.sh.intel.com
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ddb_allocation && ddb_allocation / blocks_per_line >= 1 is the same
as ddb_allocation >= blocks_per_line, so use the latter to simplify
this.
This fixes the following compiler warning:
drivers/gpu/drm/i915/intel_pm.c:4467]: (warning) Comparison of a
boolean expression with an integer other than 0 or 1.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Fixes: d555cb5827d6 ("drm/i915/skl+: use linetime latency if ddb size is not available")
Cc: "Mahesh Kumar" <mahesh1.kumar@intel.com>
Reported-by: David Binderman <dcb314@hotmail.com>
Cc: David Binderman <dcb314@hotmail.com>
Cc: <drm-intel-fixes@lists.freedesktop.org> # v4.13-rc1+
Reviewed-by: Mahesh Kumar <mahesh1.kumar@intel.com>
(cherry picked from commit 54d20ed1fff23c7d2633f01fc788111bf9c51c5d)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170717111355.4523-1-maarten.lankhorst@linux.intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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