01 Mar, 2017
1 commit
-
Pull ceph updates from Ilya Dryomov:
"This time around we have:- support for rbd data-pool feature, which enables rbd images on
erasure-coded pools (myself). CEPH_PG_MAX_SIZE has been bumped to
allow erasure-coded profiles with k+m up to 32.- a patch for ceph_d_revalidate() performance regression introduced
in 4.9, along with some cleanups in the area (Jeff Layton)- a set of fixes for unsafe ->d_parent accesses in CephFS (Jeff
Layton)- buffered reads are now processed in rsize windows instead of rasize
windows (Andreas Gerstmayr). The new default for rsize mount option
is 64M.- ack vs commit distinction is gone, greatly simplifying ->fsync()
and MOSDOpReply handling code (myself)... also a few filesystem bug fixes from Zheng, a CRUSH sync up (CRUSH
computations are still serialized though) and several minor fixes and
cleanups all over"* tag 'ceph-for-4.11-rc1' of git://github.com/ceph/ceph-client: (52 commits)
libceph, rbd, ceph: WRITE | ONDISK -> WRITE
libceph: get rid of ack vs commit
ceph: remove special ack vs commit behavior
ceph: tidy some white space in get_nonsnap_parent()
crush: fix dprintk compilation
crush: do is_out test only if we do not collide
ceph: remove req from unsafe list when unregistering it
rbd: constify device_type structure
rbd: kill obj_request->object_name and rbd_segment_name_cache
rbd: store and use obj_request->object_no
rbd: RBD_V{1,2}_DATA_FORMAT macros
rbd: factor out __rbd_osd_req_create()
rbd: set offset and length outside of rbd_obj_request_create()
rbd: support for data-pool feature
rbd: introduce rbd_init_layout()
rbd: use rbd_obj_bytes() more
rbd: remove now unused rbd_obj_request_wait() and helpers
rbd: switch rbd_obj_method_sync() to ceph_osdc_call()
libceph: pass reply buffer length through ceph_osdc_call()
rbd: do away with obj_request in rbd_obj_read_sync()
...
28 Feb, 2017
4 commits
-
Fix typos and add the following to the scripts/spelling.txt:
an user||a user
an userspace||a userspaceI also added "userspace" to the list since it is a common word in Linux.
I found some instances for "an userfaultfd", but I did not add it to the
list. I felt it is endless to find words that start with "user" such as
"userland" etc., so must draw a line somewhere.Link: http://lkml.kernel.org/r/1481573103-11329-4-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This is the same as bf72eda5 except that it's a different file. Sync
documentation with changes made by 730c9eec in 2009.Link: http://lkml.kernel.org/r/148577165630.9801.6081791213151121657.stgit@pluto.themaw.net
Signed-off-by: Tomohiro Kusumi
Signed-off-by: Ian Kent
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This is the same as d8732841 except that it's a different file. A
caller has no devid input, and devid is obtained via superblock.Link: http://lkml.kernel.org/r/148577165119.9801.16967562019122274820.stgit@pluto.themaw.net
Signed-off-by: Tomohiro Kusumi
Signed-off-by: Ian Kent
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Link: http://lkml.kernel.org/r/148577164606.9801.12571810310561599401.stgit@pluto.themaw.net
Signed-off-by: Tomohiro Kusumi
Signed-off-by: Ian Kent
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
20 Feb, 2017
1 commit
-
This patch sets the io_pages bdi hint based on the rsize mount option.
Without this patch large buffered reads (request size > max readahead)
are processed sequentially in chunks of the readahead size (i.e. read
requests are sent out up to the readahead size, then the
do_generic_file_read() function waits until the first page is received).With this patch read requests are sent out at once up to the size
specified in the rsize mount option (default: 64 MB).Signed-off-by: Andreas Gerstmayr
Acked-by: Jeff Layton
Signed-off-by: Yan, Zheng
18 Feb, 2017
1 commit
-
Change module filename from af-rxrpc.ko to rxrpc.ko so as to be consistent
with the other protocol drivers.Also adjust the documentation to reflect this.
Further, there is no longer a standalone rxkad module, as it has been
merged into the rxrpc core, so get rid of references to that.Reported-by: Marc Dionne
Signed-off-by: David Howells
Signed-off-by: David S. Miller
25 Jan, 2017
1 commit
-
Commit bc3e53f682d9 ("mm: distinguish between mlocked and pinned pages")
added VmPin in /proc//status. Report that in
Documentation/filesystems/proc.txtAlso move Umask after Name to keep correct order.
Link: http://lkml.kernel.org/r/20170114201219.30387-1-fabf@skynet.be
Signed-off-by: Fabian Frederick
Cc: Christoph Lameter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
18 Dec, 2016
2 commits
-
…/linux/kernel/git/mszeredi/vfs
Pull partial readlink cleanups from Miklos Szeredi.
This is the uncontroversial part of the readlink cleanup patch-set that
simplifies the default readlink handling.Miklos and Al are still discussing the rest of the series.
* git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
vfs: make generic_readlink() static
vfs: remove ".readlink = generic_readlink" assignments
vfs: default to generic_readlink()
vfs: replace calling i_op->readlink with vfs_readlink()
proc/self: use generic_readlink
ecryptfs: use vfs_get_link()
bad_inode: add missing i_op initializers -
Pull more vfs updates from Al Viro:
"In this pile:- autofs-namespace series
- dedupe stuff
- more struct path constification"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (40 commits)
ocfs2: implement the VFS clone_range, copy_range, and dedupe_range features
ocfs2: charge quota for reflinked blocks
ocfs2: fix bad pointer cast
ocfs2: always unlock when completing dio writes
ocfs2: don't eat io errors during _dio_end_io_write
ocfs2: budget for extent tree splits when adding refcount flag
ocfs2: prohibit refcounted swapfiles
ocfs2: add newlines to some error messages
ocfs2: convert inode refcount test to a helper
simple_write_end(): don't zero in short copy into uptodate
exofs: don't mess with simple_write_{begin,end}
9p: saner ->write_end() on failing copy into non-uptodate page
fix gfs2_stuffed_write_end() on short copies
fix ceph_write_end()
nfs_write_end(): fix handling of short copies
vfs: refactor clone/dedupe_file_range common functions
fs: try to clone files first in vfs_copy_file_range
vfs: misc struct path constification
namespace.c: constify struct path passed to a bunch of primitives
quota: constify struct path in quota_on
...
17 Dec, 2016
2 commits
-
Pull overlayfs updates from Miklos Szeredi:
"This update contains:- try to clone on copy-up
- allow renaming a directory
- split source into managable chunks
- misc cleanups and fixes
It does not contain the read-only fd data inconsistency fix, which Al
didn't like. I'll leave that to the next year..."* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: (36 commits)
ovl: fix reStructuredText syntax errors in documentation
ovl: fix return value of ovl_fill_super
ovl: clean up kstat usage
ovl: fold ovl_copy_up_truncate() into ovl_copy_up()
ovl: create directories inside merged parent opaque
ovl: opaque cleanup
ovl: show redirect_dir mount option
ovl: allow setting max size of redirect
ovl: allow redirect_dir to default to "on"
ovl: check for emptiness of redirect dir
ovl: redirect on rename-dir
ovl: lookup redirects
ovl: consolidate lookup for underlying layers
ovl: fix nested overlayfs mount
ovl: check namelen
ovl: split super.c
ovl: use d_is_dir()
ovl: simplify lookup
ovl: check lower existence of rename target
ovl: rename: simplify handling of lower/merged directory
... -
Pull vfs updates from Al Viro:
- more ->d_init() stuff (work.dcache)
- pathname resolution cleanups (work.namei)
- a few missing iov_iter primitives - copy_from_iter_full() and
friends. Either copy the full requested amount, advance the iterator
and return true, or fail, return false and do _not_ advance the
iterator. Quite a few open-coded callers converted (and became more
readable and harder to fuck up that way) (work.iov_iter)- several assorted patches, the big one being logfs removal
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
logfs: remove from tree
vfs: fix put_compat_statfs64() does not handle errors
namei: fold should_follow_link() with the step into not-followed link
namei: pass both WALK_GET and WALK_MORE to should_follow_link()
namei: invert WALK_PUT logics
namei: shift interpretation of LOOKUP_FOLLOW inside should_follow_link()
namei: saner calling conventions for mountpoint_last()
namei.c: get rid of user_path_parent()
switch getfrag callbacks to ..._full() primitives
make skb_add_data,{_nocache}() and skb_copy_to_page_nocache() advance only on success
[iov_iter] new primitives - copy_from_iter_full() and friends
don't open-code file_inode()
ceph: switch to use of ->d_init()
ceph: unify dentry_operations instances
lustre: switch to use of ->d_init()
16 Dec, 2016
4 commits
-
- Fix broken long line block quote
- Fix missing newline before bullets list
- Use correct numbered list syntaxSigned-off-by: Amir Goldstein
Signed-off-by: Miklos Szeredi -
Current code returns EXDEV when a directory would need to be copied up to
move. We could copy up the directory tree in this case, but there's
another, simpler solution: point to old lower directory from moved upper
directory.This is achieved with a "trusted.overlay.redirect" xattr storing the path
relative to the root of the overlay. After such attribute has been set,
the directory can be moved without further actions required.This is a backward incompatible feature, old kernels won't be able to
correctly mount an overlay containing redirected directories.Signed-off-by: Miklos Szeredi
-
The quirk for file locks and leases no longer applies.
Add missing info about renaming directory residing on lower layer.
Signed-off-by: Miklos Szeredi
-
Pull PCI updates from Bjorn Helgaas:
"PCI changes:- add support for PCI on ARM64 boxes with ACPI. We already had this
for theoretical spec-compliant hardware; now we're adding quirks
for the actual hardware (Cavium, HiSilicon, Qualcomm, X-Gene)- add runtime PM support for hotplug ports
- enable runtime suspend for Intel UHCI that uses platform-specific
wakeup signaling- add yet another host bridge registration interface. We hope this is
extensible enough to subsume the others- expose device revision in sysfs for DRM
- to avoid device conflicts, make sure any VF BAR updates are done
before enabling the VF- avoid unnecessary link retrains for ASPM
- allow INTx masking on Mellanox devices that support it
- allow access to non-standard VPD for Chelsio devices
- update Broadcom iProc support for PAXB v2, PAXC v2, inbound DMA,
etc- update Rockchip support for max-link-speed
- add NVIDIA Tegra210 support
- add Layerscape LS1046a support
- update R-Car compatibility strings
- add Qualcomm MSM8996 support
- remove some uninformative bootup messages"
* tag 'pci-v4.10-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (115 commits)
PCI: Enable access to non-standard VPD for Chelsio devices (cxgb3)
PCI: Expand "VPD access disabled" quirk message
PCI: pciehp: Remove loading message
PCI: hotplug: Remove hotplug core message
PCI: Remove service driver load/unload messages
PCI/AER: Log AER IRQ when claiming Root Port
PCI/AER: Log errors with PCI device, not PCIe service device
PCI/AER: Remove unused version macros
PCI/PME: Log PME IRQ when claiming Root Port
PCI/PME: Drop unused support for PMEs from Root Complex Event Collectors
PCI: Move config space size macros to pci_regs.h
x86/platform/intel-mid: Constify mid_pci_platform_pm
PCI/ASPM: Don't retrain link if ASPM not possible
PCI: iproc: Skip check for legacy IRQ on PAXC buses
PCI: pciehp: Leave power indicator on when enabling already-enabled slot
PCI: pciehp: Prioritize data-link event over presence detect
PCI: rcar: Add gen3 fallback compatibility string for pcie-rcar
PCI: rcar: Use gen2 fallback compatibility last
PCI: rcar-gen2: Use gen2 fallback compatibility last
PCI: rockchip: Move the deassert of pm/aclk/pclk after phy_init()
..
15 Dec, 2016
5 commits
-
Pull xfs updates from Dave Chinner:
"There is quite a varied bunch of stuff in this update, and some of it
you will have already merged through the ext4 tree which imported the
dax-4.10-iomap-pmd topic branch from the XFS tree.There is also a new direct IO implementation that uses the iomap
infrastructure. It's much simpler, faster, and has lower IO latency
than the existing direct IO infrastructure.Summary:
- DAX PMD faults via iomap infrastructure
- Direct-io support in iomap infrastructure
- removal of now-redundant XFS inode iolock, replaced with VFS
i_rwsem
- synchronisation with fixes and changes in userspace libxfs code
- extent tree lookup helpers
- lots of little corruption detection improvements to verifiers
- optimised CRC calculations
- faster buffer cache lookups
- deprecation of barrier/nobarrier mount options - we always use
REQ_FUA/REQ_FLUSH where appropriate for data integrity now
- cleanups to speculative preallocation
- miscellaneous minor bug fixes and cleanups"* tag 'xfs-for-linus-4.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (63 commits)
xfs: nuke unused tracepoint definitions
xfs: use GPF_NOFS when allocating btree cursors
xfs: use xfs_vn_setattr_size to check on new size
xfs: deprecate barrier/nobarrier mount option
xfs: Always flush caches when integrity is required
xfs: ignore leaf attr ichdr.count in verifier during log replay
xfs: use rhashtable to track buffer cache
xfs: optimise CRC updates
xfs: make xfs btree stats less huge
xfs: don't cap maximum dedupe request length
xfs: don't allow di_size with high bit set
xfs: error out if trying to add attrs and anextents > 0
xfs: don't crash if reading a directory results in an unexpected hole
xfs: complain if we don't get nextents bmap records
xfs: check for bogus values in btree block headers
xfs: forbid AG btrees with level == 0
xfs: several xattr functions can be void
xfs: handle cow fork in xfs_bmap_trace_exlist
xfs: pass state not whichfork to trace_xfs_extlist
xfs: Move AGI buffer type setting to xfs_read_agi
... -
Logfs was introduced to the kernel in 2009, and hasn't seen any non
drive-by changes since 2012, while having lots of unsolved issues
including the complete lack of error handling, with more and more
issues popping up without any fixes.The logfs.org domain has been bouncing from a mail, and the maintainer
on the non-logfs.org domain hasn't repsonded to past queries either.Signed-off-by: Christoph Hellwig
Signed-off-by: Al Viro -
Currently we have two different structures for passing fault information
around - struct vm_fault and struct fault_env. DAX will need more
information in struct vm_fault to handle its faults so the content of
that structure would become event closer to fault_env. Furthermore it
would need to generate struct fault_env to be able to call some of the
generic functions. So at this point I don't think there's much use in
keeping these two structures separate. Just embed into struct vm_fault
all that is needed to use it for both purposes.Link: http://lkml.kernel.org/r/1479460644-25076-2-git-send-email-jack@suse.cz
Signed-off-by: Jan Kara
Acked-by: Kirill A. Shutemov
Cc: Ross Zwisler
Cc: Dan Williams
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Pull configfs update from Christoph Hellwig:
"Just one simple change from Andrzej to drop the pointless return value
from the ->drop_link method"* tag 'configfs-for-4.10' of git://git.infradead.org/users/hch/configfs:
fs: configfs: don't return anything from drop_link -
Pull ext4 updates from Ted Ts'o:
"This merge request includes the dax-4.0-iomap-pmd branch which is
needed for both ext4 and xfs dax changes to use iomap for DAX. It also
includes the fscrypt branch which is needed for ubifs encryption work
as well as ext4 encryption and fscrypt cleanups.Lots of cleanups and bug fixes, especially making sure ext4 is robust
against maliciously corrupted file systems --- especially maliciously
corrupted xattr blocks and a maliciously corrupted superblock. Also
fix ext4 support for 64k block sizes so it works well on ppcle. Fixed
mbcache so we don't miss some common xattr blocks that can be merged"* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (86 commits)
dax: Fix sleep in atomic contex in grab_mapping_entry()
fscrypt: Rename FS_WRITE_PATH_FL to FS_CTX_HAS_BOUNCE_BUFFER_FL
fscrypt: Delay bounce page pool allocation until needed
fscrypt: Cleanup page locking requirements for fscrypt_{decrypt,encrypt}_page()
fscrypt: Cleanup fscrypt_{decrypt,encrypt}_page()
fscrypt: Never allocate fscrypt_ctx on in-place encryption
fscrypt: Use correct index in decrypt path.
fscrypt: move the policy flags and encryption mode definitions to uapi header
fscrypt: move non-public structures and constants to fscrypt_private.h
fscrypt: unexport fscrypt_initialize()
fscrypt: rename get_crypt_info() to fscrypt_get_crypt_info()
fscrypto: move ioctl processing more fully into common code
fscrypto: remove unneeded Kconfig dependencies
MAINTAINERS: fscrypto: recommend linux-fsdevel for fscrypto patches
ext4: do not perform data journaling when data is encrypted
ext4: return -ENOMEM instead of success
ext4: reject inodes with negative size
ext4: remove another test in ext4_alloc_file_blocks()
Documentation: fix description of ext4's block_validity mount option
ext4: fix checks for data=ordered and journal_async_commit options
...
13 Dec, 2016
2 commits
-
Pull documentation update from Jonathan Corbet:
"These are the documentation changes for 4.10.It's another busy cycle for the docs tree, as the sphinx conversion
continues. Highlights include:- Further work on PDF output, which remains a bit of a pain but
should be more solid now.- Five more DocBook template files converted to Sphinx. Only 27 to
go... Lots of plain-text files have also been converted and
integrated.- Images in binary formats have been replaced with more
source-friendly versions.- Various bits of organizational work, including the renaming of
various files discussed at the kernel summit.- New documentation for the device_link mechanism.
... and, of course, lots of typo fixes and small updates"
* tag 'docs-4.10' of git://git.lwn.net/linux: (193 commits)
dma-buf: Extract dma-buf.rst
Update Documentation/00-INDEX
docs: 00-INDEX: document directories/files with no docs
docs: 00-INDEX: remove non-existing entries
docs: 00-INDEX: add missing entries for documentation files/dirs
docs: 00-INDEX: consolidate process/ and admin-guide/ description
scripts: add a script to check if Documentation/00-INDEX is sane
Docs: change sh -> awk in REPORTING-BUGS
Documentation/core-api/device_link: Add initial documentation
core-api: remove an unexpected unident
ppc/idle: Add documentation for powersave=off
Doc: Correct typo, "Introdution" => "Introduction"
Documentation/atomic_ops.txt: convert to ReST markup
Documentation/local_ops.txt: convert to ReST markup
Documentation/assoc_array.txt: convert to ReST markup
docs-rst: parse-headers.pl: cleanup the documentation
docs-rst: fix media cleandocs target
docs-rst: media/Makefile: reorganize the rules
docs-rst: media: build SVG from graphviz files
docs-rst: replace bayer.png by a SVG image
... -
Similar to being able to examine if a process has been correctly
confined with seccomp, the state of no_new_privs is equally interesting,
so this adds it to /proc/$pid/status.Link: http://lkml.kernel.org/r/20161103214041.GA58566@beast
Signed-off-by: Kees Cook
Reviewed-by: Jann Horn
Cc: Jonathan Corbet
Cc: Vlastimil Babka
Cc: Michal Hocko
Cc: Konstantin Khlebnikov
Cc: Hugh Dickins
Cc: Naoya Horiguchi
Cc: Rodrigo Freire
Cc: John Stultz
Cc: Ross Zwisler
Cc: Robert Ho
Cc: Jerome Marchand
Cc: Andy Lutomirski
Cc: Johannes Weiner
Cc: Alexey Dobriyan
Cc: "Richard W.M. Jones"
Cc: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
09 Dec, 2016
2 commits
-
If i_op->readlink is NULL, but i_op->get_link is set then vfs_readlink()
defaults to calling generic_readlink().The IOP_DEFAULT_READLINK flag indicates that the above conditions are met
and the default action can be taken.Signed-off-by: Miklos Szeredi
-
We always perform integrity operations now, so these mount options
don't do anything. Deprecate them and mark them for removal in
in a year.Signed-Off-By: Dave Chinner
Reviewed-by: Christoph Hellwig
Signed-off-by: Dave Chinner
04 Dec, 2016
1 commit
-
Fix ext4 documentation according to commit 45f1a9c3f63d
("ext4: enable block_validity by default")Also fix some typos.
[ Further documentation cleanups by tytso ]
Signed-off-by: Fabian Frederick
Signed-off-by: Theodore Ts'o
03 Dec, 2016
1 commit
-
For the autofs module to be able to reliably check if a dentry is a
mountpoint in a multiple namespace environment the ->d_manage() dentry
operation will need to take a path argument instead of a dentry.Link: http://lkml.kernel.org/r/20161011053352.27645.83962.stgit@pluto.themaw.net
Signed-off-by: Ian Kent
Cc: Al Viro
Cc: Eric W. Biederman
Cc: Omar Sandoval
Signed-off-by: Andrew Morton
Signed-off-by: Al Viro
01 Dec, 2016
1 commit
-
Documentation/filesystems/configfs/configfs.txt says:
"When unlink(2) is called on the symbolic link, the source item is
notified via the ->drop_link() method. Like the ->drop_item() method,
this is a void function and cannot return failure."The ->drop_item() is indeed a void function, the ->drop_link() is
actually not. This, together with the fact that the value of ->drop_link()
is silently ignored suggests, that it is the ->drop_link() return
type that should be corrected and changed to void.This patch changes drop_link() signature and all its users.
Signed-off-by: Andrzej Pietrasiewicz
[hch: reverted reformatting of some code]
Signed-off-by: Christoph Hellwig
22 Nov, 2016
1 commit
-
Currently the revision isn't available via sysfs/libudev thus if one wants
to know the value one needs to read through the config file, which can be
quite time-consuming because it wakes/powers up the device.There are at least two userspace components which could make use the new
file: libpciaccess and libdrm. The former wakes up _every_ PCI device,
which can be observed via glxinfo when using Mesa 10.0+ drivers. The
latter, in association with Mesa 13.0, can lead to 2-3 second delays while
starting firefox, thunderbird or chromium.Link: https://bugs.freedesktop.org/show_bug.cgi?id=98502
Tested-by: Mauro Santos
Signed-off-by: Emil Velikov
Signed-off-by: Bjorn Helgaas
Reviewed-by: Alex Deucher
Reviewed-by: Daniel Vetter
21 Nov, 2016
1 commit
-
No one uses functions using the get_block callback anymore. Rip them
out and update documentation.Reviewed-by: Ross Zwisler
Signed-off-by: Jan Kara
Signed-off-by: Theodore Ts'o
20 Nov, 2016
1 commit
-
The iowait is not reliable by reading from /proc/stat, so this
method to get iowait is not suggested. And we mark it in the
document.Signed-off-by: Cao Jin
Signed-off-by: Chao Fan
Signed-off-by: Jonathan Corbet
19 Nov, 2016
1 commit
-
Bring in -rc4 patches so I can successfully merge the sound doc changes.
31 Oct, 2016
1 commit
-
Signed-off-by: Christoph Hellwig
Signed-off-by: Al Viro
24 Oct, 2016
1 commit
-
The previous patch renamed several files that are cross-referenced
along the Kernel documentation. Adjust the links to point to
the right places.Signed-off-by: Mauro Carvalho Chehab
20 Oct, 2016
1 commit
-
This reverts more of:
b76437579d13 ("procfs: mark thread stack correctly in proc//maps")
... which was partially reverted by:
65376df58217 ("proc: revert /proc//maps [stack:TID] annotation")
Originally, /proc/PID/task/TID/maps was the same as /proc/TID/maps.
In current kernels, /proc/PID/maps (or /proc/TID/maps even for
threads) shows "[stack]" for VMAs in the mm's stack address range.In contrast, /proc/PID/task/TID/maps uses KSTK_ESP to guess the
target thread's stack's VMA. This is racy, probably returns garbage
and, on arches with CONFIG_TASK_INFO_IN_THREAD=y, is also crash-prone:
KSTK_ESP is not safe to use on tasks that aren't known to be running
ordinary process-context kernel code.This patch removes the difference and just shows "[stack]" for VMAs
in the mm's stack range. This is IMO much more sensible -- the
actual "stack" address really is treated specially by the VM code,
and the current thread stack isn't even well-defined for programs
that frequently switch stacks on their own.Reported-by: Jann Horn
Signed-off-by: Andy Lutomirski
Acked-by: Thomas Gleixner
Cc: Al Viro
Cc: Andrew Morton
Cc: Borislav Petkov
Cc: Brian Gerst
Cc: Johannes Weiner
Cc: Kees Cook
Cc: Linus Torvalds
Cc: Linux API
Cc: Peter Zijlstra
Cc: Tycho Andersen
Link: http://lkml.kernel.org/r/3e678474ec14e0a0ec34c611016753eea2e1b8ba.1475257877.git.luto@kernel.org
Signed-off-by: Ingo Molnar
15 Oct, 2016
1 commit
-
…/kernel/git/shuah/linux-kselftest
Pull kselftest updates from Shuah Khan:
"This update consists of:- Fixes and improvements to existing tests
- Moving code from Documentation to selftests, samples, and tools:
* Moves dnotify_test, prctl, ptp, vDSO, ia64, watchdog, and
networking tests from Documentation to selftests.* Moves mic/mpssd, misc-devices/mei, timers, watchdog, auxdisplay,
and blackfin examples from Documentation to samples.* Moves accounting, laptops/dslm, and pcmcia/crc32hash tools from
Documentation to tools.* Deletes BUILD_DOCSRC and its dependencies"
* tag 'linux-kselftest-4.9-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (21 commits)
selftests/futex: Check ANSI terminal color support
Doc: update 00-INDEX files to reflect the runnable code move
samples: move blackfin gptimers-example from Documentation
tools: move pcmcia crc32hash tool from Documentation
tools: move laptops dslm tool from Documentation
tools: move accounting tool from Documentation
samples: move auxdisplay example code from Documentation
samples: move watchdog example code from Documentation
samples: move timers example code from Documentation
samples: move misc-devices/mei example code from Documentation
samples: move mic/mpssd example code from Documentation
selftests: Move networking/timestamping from Documentation
selftests: move watchdog tests from Documentation/watchdog
selftests: move ia64 tests from Documentation/ia64
selftests: move vDSO tests from Documentation/vDSO
selftests: move ptp tests from Documentation/ptp
selftests: move prctl tests from Documentation/prctl
selftests: move dnotify_test from Documentation/filesystems
selftests/timers: Add missing error code assignment before test
selftests/zram: replace ZRAM_LZ4_COMPRESS
...
12 Oct, 2016
3 commits
-
Sync with changes made by commit 730c9eeca980 ("autofs4: improve
parameter usage") which introduced an union for various ioctl commands
instead of having statically named arg1,2.This commit simply replaces arg1,2 with the corresponding fields without
changing semantics.Link: http://lkml.kernel.org/r/20160812024831.12352.24667.stgit@pluto.themaw.net
Signed-off-by: Tomohiro Kusumi
Signed-off-by: Ian Kent
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The explanation on how ioctl handles devid seems incorrect. Userspace who
calls this ioctl has no input regarding devid, and ioctl implementation
retrieves devid via superblock.Link: http://lkml.kernel.org/r/20160812024825.12352.13486.stgit@pluto.themaw.net
Signed-off-by: Tomohiro Kusumi
Signed-off-by: Ian Kent
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
plus minor whitespace fixes.
Link: http://lkml.kernel.org/r/20160812024734.12352.17122.stgit@pluto.themaw.net
Signed-off-by: Tomohiro Kusumi
Signed-off-by: Ian Kent
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
11 Oct, 2016
1 commit
-
Pull more vfs updates from Al Viro:
">rename2() work from Miklos + current_time() from Deepa"* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
fs: Replace current_fs_time() with current_time()
fs: Replace CURRENT_TIME_SEC with current_time() for inode timestamps
fs: Replace CURRENT_TIME with current_time() for inode timestamps
fs: proc: Delete inode time initializations in proc_alloc_inode()
vfs: Add current_time() api
vfs: add note about i_op->rename changes to porting
fs: rename "rename2" i_op to "rename"
vfs: remove unused i_op->rename
fs: make remaining filesystems use .rename2
libfs: support RENAME_NOREPLACE in simple_rename()
fs: support RENAME_NOREPLACE for local filesystems
ncpfs: fix unused variable warning