| Commit message (Collapse) | Author | Age | Files | Lines |
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Pull nfsd updates from Bruce Fields:
"A relatively quiet cycle, with a mix of cleanup and smaller bugfixes"
* 'for-4.2' of git://linux-nfs.org/~bfields/linux: (24 commits)
sunrpc: use sg_init_one() in krb5_rc4_setup_enc/seq_key()
nfsd: wrap too long lines in nfsd4_encode_read
nfsd: fput rd_file from XDR encode context
nfsd: take struct file setup fully into nfs4_preprocess_stateid_op
nfsd: refactor nfs4_preprocess_stateid_op
nfsd: clean up raparams handling
nfsd: use swap() in sort_pacl_range()
rpcrdma: Merge svcrdma and xprtrdma modules into one
svcrdma: Add a separate "max data segs macro for svcrdma
svcrdma: Replace GFP_KERNEL in a loop with GFP_NOFAIL
svcrdma: Keep rpcrdma_msg fields in network byte-order
svcrdma: Fix byte-swapping in svc_rdma_sendto.c
nfsd: Update callback sequnce id only CB_SEQUENCE success
nfsd: Reset cb_status in nfsd4_cb_prepare() at retrying
svcrdma: Remove svc_rdma_xdr_decode_deferred_req()
SUNRPC: Move EXPORT_SYMBOL for svc_process
uapi/nfs: Add NFSv4.1 ACL definitions
nfsd: Remove dead declarations
nfsd: work around a gcc-5.1 warning
nfsd: Checking for acl support does not require fetching any acls
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The 'overloads-avoided' counter itself was removed several years ago by
commit 78c210e (Revert "knfsd: avoid overloading the CPU scheduler with
enormous load averages").
Signed-off-by: Scott Mayhew <smayhew@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull UDF fixes and cleanups from Jan Kara:
"The contains some small fixes and improvements in error handling for
UDF.
Bundled is also one ext3 coding style fix and a fix in quota
documentation"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
udf: fix udf_load_pvoldesc()
udf: remove double err declaration in udf_file_write_iter()
UDF: support NFSv2 export
fs: ext3: super: fixed a space coding style issue
quota: Update documentation
udf: Return error from udf_find_entry()
udf: Make udf_get_filename() return error instead of 0 length file name
udf: bug on exotic flag in udf_get_filename()
udf: improve error management in udf_CS0toNLS()
udf: improve error management in udf_CS0toUTF8()
udf: unicode: update function name in comments
udf: remove unnecessary test in udf_build_ustr_exact()
udf: Return -ENOMEM when allocation fails in udf_get_filename()
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Mention that quota netlink messages are sent only in initial network
namespace.
Signed-off-by: Jan Kara <jack@suse.cz>
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Pull documentation updates from Jonathan Corbet:
"The main thing here is Ingo's big subdirectory documenting feature
support for each architecture. Beyond that, it's the usual pile of
fixes, tweaks, and small additions"
* tag 'docs-for-linus' of git://git.lwn.net/linux-2.6: (79 commits)
doc:md: fix typo in md.txt.
Documentation/mic/mpssd: don't build x86 userspace when cross compiling
Documentation/prctl: don't build tsc tests when cross compiling
Documentation/vDSO: don't build tests when cross compiling
Doc:ABI/testing: Fix typo in sysfs-bus-fcoe
Doc: Docbook: Change wikipedia's URL from http to https in scsi.tmpl
Doc: Change wikipedia's URL from http to https
Documentation/kernel-parameters: add missing pciserial to the earlyprintk
Doc:pps: Fix typo in pps.txt
kbuild : Fix documentation of INSTALL_HDR_PATH
Documentation: filesystems: updated struct file_operations documentation in vfs.txt
kbuild: edit explanation of clean-files variable
Doc: ja_JP: Fix typo in HOWTO
Move freefall program from Documentation/ to tools/
Documentation: ARM: EXYNOS: Describe boot loaders interface
Doc:nfc: Fix typo in nfc-hci.txt
vfs: Minor documentation fix
Doc: networking: txtimestamp: fix printf format warning
Documentation, intel_pstate: Improve legacy mode internal governors description
Documentation: extend use case for EXPORT_SYMBOL_GPL()
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vfs.txt
Updated struct file_operations documentation in vfs.txt to match
current implementation
Signed-off-by: Thomas de Beauchene <chauvo_t@epitech.eu>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The check_acl inode operation and the IPERM_FLAG_RCU flag are long gone; update
the documentation.
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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commit dc6c9a35b66b ("mm: account pmd page tables to the process")
add VmPMD in /proc/PID/status.
This patch add a description in proc.txt for it.
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Change the kernel version in table 1-2 from 3.20 to 4.1
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Reviewed-by: Nathan Scott <nathans@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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The guidelines for adding automount support to a filesystem
in filesystems/automount-support.txt is out or date.
filesystems/autofs4.txt contains more current text, so replace
the out-of-date content with a reference to that.
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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only one instance looks at that argument at all; that sole
exception wants inode rather than dentry.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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its only use is getting passed to nd_jump_link(), which can obtain
it from current->nameidata
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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a) instead of storing the symlink body (via nd_set_link()) and returning
an opaque pointer later passed to ->put_link(), ->follow_link() _stores_
that opaque pointer (into void * passed by address by caller) and returns
the symlink body. Returning ERR_PTR() on error, NULL on jump (procfs magic
symlinks) and pointer to symlink body for normal symlinks. Stored pointer
is ignored in all cases except the last one.
Storing NULL for opaque pointer (or not storing it at all) means no call
of ->put_link().
b) the body used to be passed to ->put_link() implicitly (via nameidata).
Now only the opaque pointer is. In the cases when we used the symlink body
to free stuff, ->follow_link() now should store it as opaque pointer in addition
to returning it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs
Pull xfs update from Dave Chinner:
"This update contains:
- RENAME_WHITEOUT support
- conversion of per-cpu superblock accounting to use generic counters
- new inode mmap lock so that we can lock page faults out of
truncate, hole punch and other direct extent manipulation functions
to avoid racing mmap writes from causing data corruption
- rework of direct IO submission and completion to solve data
corruption issue when running concurrent extending DIO writes.
Also solves problem of running IO completion transactions in
interrupt context during size extending AIO writes.
- FALLOC_FL_INSERT_RANGE support for inserting holes into a file via
direct extent manipulation to avoid needing to copy data within the
file
- attribute block header field overflow fix for 64k block size
filesystems
- Lots of changes to log messaging to be more informative and concise
when errors occur. Also prevent a lot of unnecessary log spamming
due to cascading failures in error conditions.
- lots of cleanups and bug fixes
One thing of note is the direct IO fixes that we merged last week
after the window opened. Even though a little late, they fix a user
reported data corruption and have been pretty well tested. I figured
there was not much point waiting another 2 weeks for -rc1 to be
released just so I could send them to you..."
* tag 'xfs-for-linus-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dgc/linux-xfs: (49 commits)
xfs: using generic_file_direct_write() is unnecessary
xfs: direct IO EOF zeroing needs to drain AIO
xfs: DIO write completion size updates race
xfs: DIO writes within EOF don't need an ioend
xfs: handle DIO overwrite EOF update completion correctly
xfs: DIO needs an ioend for writes
xfs: move DIO mapping size calculation
xfs: factor DIO write mapping from get_blocks
xfs: unlock i_mutex in xfs_break_layouts
xfs: kill unnecessary firstused overflow check on attr3 leaf removal
xfs: use larger in-core attr firstused field and detect overflow
xfs: pass attr geometry to attr leaf header conversion functions
xfs: disallow ro->rw remount on norecovery mount
xfs: xfs_shift_file_space can be static
xfs: Add support FALLOC_FL_INSERT_RANGE for fallocate
fs: Add support FALLOC_FL_INSERT_RANGE for fallocate
xfs: Fix incorrect positive ENOMEM return
xfs: xfs_mru_cache_insert() should use GFP_NOFS
xfs: %pF is only for function pointers
xfs: fix shadow warning in xfs_da3_root_split()
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We recently removed deprecated sysctls; may as well
remove deprecated mount options as well, we've stated
that they'd be gone by now in the docs.
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull InfiniBand/RDMA updates from Roland Dreier:
- IPoIB fixes from Doug Ledford and Erez Shitrit
- iSER updates from Sagi Grimberg
- mlx4 GUID handling changes from Yishai Hadas
- other misc fixes
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (51 commits)
mlx5: wrong page mask if CONFIG_ARCH_DMA_ADDR_T_64BIT enabled for 32Bit architectures
IB/iser: Rewrite bounce buffer code path
IB/iser: Bump version to 1.6
IB/iser: Remove code duplication for a single DMA entry
IB/iser: Pass struct iser_mem_reg to iser_fast_reg_mr and iser_reg_sig_mr
IB/iser: Modify struct iser_mem_reg members
IB/iser: Make fastreg pool cache friendly
IB/iser: Move PI context alloc/free to routines
IB/iser: Move fastreg descriptor pool get/put to helper functions
IB/iser: Merge build page-vec into register page-vec
IB/iser: Get rid of struct iser_rdma_regd
IB/iser: Remove redundant assignments in iser_reg_page_vec
IB/iser: Move memory reg/dereg routines to iser_memory.c
IB/iser: Don't pass ib_device to fall_to_bounce_buff routine
IB/iser: Remove a redundant struct iser_data_buf
IB/iser: Remove redundant cmd_data_len calculation
IB/iser: Fix wrong calculation of protection buffer length
IB/iser: Handle fastreg/local_inv completion errors
IB/iser: Fix unload during ep_poll wrong dereference
ib_srpt: convert printk's to pr_* functions
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The ifconfig command has been deprecated for many years.
To encourage new users not to continue using it and learning
iproute2; the ifconfig should not be used in examples.
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"New features:
- in-memory extent_cache
- fs_shutdown to test power-off-recovery
- use inline_data to store symlink path
- show f2fs as a non-misc filesystem
Major fixes:
- avoid CPU stalls on sync_dirty_dir_inodes
- fix some power-off-recovery procedure
- fix handling of broken symlink correctly
- fix missing dot and dotdot made by sudden power cuts
- handle wrong data index during roll-forward recovery
- preallocate data blocks for direct_io
... and a bunch of minor bug fixes and cleanups"
* tag 'for-f2fs-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (71 commits)
f2fs: pass checkpoint reason on roll-forward recovery
f2fs: avoid abnormal behavior on broken symlink
f2fs: flush symlink path to avoid broken symlink after POR
f2fs: change 0 to false for bool type
f2fs: do not recover wrong data index
f2fs: do not increase link count during recovery
f2fs: assign parent's i_mode for empty dir
f2fs: add F2FS_INLINE_DOTS to recover missing dot dentries
f2fs: fix mismatching lock and unlock pages for roll-forward recovery
f2fs: fix sparse warnings
f2fs: limit b_size of mapped bh in f2fs_map_bh
f2fs: persist system.advise into on-disk inode
f2fs: avoid NULL pointer dereference in f2fs_xattr_advise_get
f2fs: preallocate fallocated blocks for direct IO
f2fs: enable inline data by default
f2fs: preserve extent info for extent cache
f2fs: initialize extent tree with on-disk extent info of inode
f2fs: introduce __{find,grab}_extent_tree
f2fs: split set_data_blkaddr from f2fs_update_extent_cache
f2fs: enable fast symlink by utilizing inline data
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Enable inline_data feature by default since it brings us better
performance and space utilization and now has already stable.
Add another option noinline_data to disable it during mount.
Suggested-by: Jaegeuk Kim <jaegeuk@kernel.org>
Suggested-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch adds a mount option 'extent_cache' in f2fs.
It is try to use a rb-tree based extent cache to cache more mapping information
with less memory if this option is set, otherwise we will use the original one
extent info cache.
Suggested-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Pull documentation updates from Jonathan Corbet:
"Numerous fixes, the overdue removal of the i2o docs, some new Chinese
translations, and, hopefully, the README fix that will end the flow of
identical patches to that file"
* tag 'docs-for-linus' of git://git.lwn.net/linux-2.6: (34 commits)
Documentation/memcg: update memcg/kmem status
Documentation: blackfin: Makefile: Typo building issue
Documentation/vm/pagemap.txt: correct location of page-types tool
Documentation/memory-barriers.txt: typo fix
doc: Add guest_nice column to example output of `cat /proc/stat'
Documentation/kernel-parameters: Move "eagerfpu" to its right place
Documentation: gpio: Update ACPI part of the document to mention _DSD
docs/completion.txt: Various tweaks and corrections
doc: completion: context, scope and language fixes
Documentation:Update Documentation/zh_CN/arm64/memory.txt
Documentation:Update Documentation/zh_CN/arm64/booting.txt
Documentation: Chinese translation of arm64/legacy_instructions.txt
DocBook media: fix broken EIA hyperlink
Documentation: tweak the maintainers entry
README: Change gzip/bzip2 to xz compression format
README: Update version number reference
doc:pci: Fix typo in Documentation/PCI
Documentation: drm: Use '->' when describing access through pointers.
Documentation: Remove mentioning of block barriers
Documentation/email-clients.txt: Fix one grammar mistake, add extra info about TB
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Commit ce0e7b28fb75cb00 ("sched, cpuacct: Fix niced guest time
accounting") added the guest_nice column to /proc/stat, but the example
output of `cat /proc/stat' in Documentation/filesystems/proc.txt wasn't
updated accordingly. Do so now.
Cc: Ryota Ozaki <ozaki.ryota@gmail.com>
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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Merge third patchbomb from Andrew Morton:
- various misc things
- a couple of lib/ optimisations
- provide DIV_ROUND_CLOSEST_ULL()
- checkpatch updates
- rtc tree
- befs, nilfs2, hfs, hfsplus, fatfs, adfs, affs, bfs
- ptrace fixes
- fork() fixes
- seccomp cleanups
- more mmap_sem hold time reductions from Davidlohr
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (138 commits)
proc: show locks in /proc/pid/fdinfo/X
docs: add missing and new /proc/PID/status file entries, fix typos
drivers/rtc/rtc-at91rm9200.c: make IO endian agnostic
Documentation/spi/spidev_test.c: fix warning
drivers/rtc/rtc-s5m.c: allow usage on device type different than main MFD type
.gitignore: ignore *.tar
MAINTAINERS: add Mediatek SoC mailing list
tomoyo: reduce mmap_sem hold for mm->exe_file
powerpc/oprofile: reduce mmap_sem hold for exe_file
oprofile: reduce mmap_sem hold for mm->exe_file
mips: ip32: add platform data hooks to use DS1685 driver
lib/Kconfig: fix up HAVE_ARCH_BITREVERSE help text
x86: switch to using asm-generic for seccomp.h
sparc: switch to using asm-generic for seccomp.h
powerpc: switch to using asm-generic for seccomp.h
parisc: switch to using asm-generic for seccomp.h
mips: switch to using asm-generic for seccomp.h
microblaze: use asm-generic for seccomp.h
arm: use asm-generic for seccomp.h
seccomp: allow COMPAT sigreturn overrides
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Let's show locks which are associated with a file descriptor in
its fdinfo file.
Currently we don't have a reliable way to determine who holds a lock. We
can find some information in /proc/locks, but PID which is reported there
can be wrong. For example, a process takes a lock, then forks a child and
dies. In this case /proc/locks contains the parent pid, which can be
reused by another process.
$ cat /proc/locks
...
6: FLOCK ADVISORY WRITE 324 00:13:13431 0 EOF
...
$ ps -C rpcbind
PID TTY TIME CMD
332 ? 00:00:00 rpcbind
$ cat /proc/332/fdinfo/4
pos: 0
flags: 0100000
mnt_id: 22
lock: 1: FLOCK ADVISORY WRITE 324 00:13:13431 0 EOF
$ ls -l /proc/332/fd/4
lr-x------ 1 root root 64 Mar 5 14:43 /proc/332/fd/4 -> /run/rpcbind.lock
$ ls -l /proc/324/fd/
total 0
lrwx------ 1 root root 64 Feb 27 14:50 0 -> /dev/pts/0
lrwx------ 1 root root 64 Feb 27 14:50 1 -> /dev/pts/0
lrwx------ 1 root root 64 Feb 27 14:49 2 -> /dev/pts/0
You can see that the process with the 324 pid doesn't hold the lock.
This information is required for proper dumping and restoring file
locks.
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Acked-by: Jeff Layton <jlayton@poochiereds.net>
Acked-by: "J. Bruce Fields" <bfields@fieldses.org>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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docs: add missing and new /proc/PID/status file entries, fix typos
Signed-off-by: Nathan Scott <nathans@redhat.com>
Signed-off-by: Chen Hanxiao <chenhanxiao@cn.fujitsu.com>
Cc: Serge Hallyn <serge.hallyn@canonical.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull third hunk of vfs changes from Al Viro:
"This contains the ->direct_IO() changes from Omar + saner
generic_write_checks() + dealing with fcntl()/{read,write}() races
(mirroring O_APPEND/O_DIRECT into iocb->ki_flags and instead of
repeatedly looking at ->f_flags, which can be changed by fcntl(2),
check ->ki_flags - which cannot) + infrastructure bits for dhowells'
d_inode annotations + Christophs switch of /dev/loop to
vfs_iter_write()"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (30 commits)
block: loop: switch to VFS ITER_BVEC
configfs: Fix inconsistent use of file_inode() vs file->f_path.dentry->d_inode
VFS: Make pathwalk use d_is_reg() rather than S_ISREG()
VFS: Fix up debugfs to use d_is_dir() in place of S_ISDIR()
VFS: Combine inode checks with d_is_negative() and d_is_positive() in pathwalk
NFS: Don't use d_inode as a variable name
VFS: Impose ordering on accesses of d_inode and d_flags
VFS: Add owner-filesystem positive/negative dentry checks
nfs: generic_write_checks() shouldn't be done on swapout...
ocfs2: use __generic_file_write_iter()
mirror O_APPEND and O_DIRECT into iocb->ki_flags
switch generic_write_checks() to iocb and iter
ocfs2: move generic_write_checks() before the alignment checks
ocfs2_file_write_iter: stop messing with ppos
udf_file_write_iter: reorder and simplify
fuse: ->direct_IO() doesn't need generic_write_checks()
ext4_file_write_iter: move generic_write_checks() up
xfs_file_aio_write_checks: switch to iocb/iov_iter
generic_write_checks(): drop isblk argument
blkdev_write_iter: expand generic_file_checks() call in there
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Now that no one is using rw, remove it completely.
Signed-off-by: Omar Sandoval <osandov@osandov.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge second patchbomb from Andrew Morton:
- the rest of MM
- various misc bits
- add ability to run /sbin/reboot at reboot time
- printk/vsprintf changes
- fiddle with seq_printf() return value
* akpm: (114 commits)
parisc: remove use of seq_printf return value
lru_cache: remove use of seq_printf return value
tracing: remove use of seq_printf return value
cgroup: remove use of seq_printf return value
proc: remove use of seq_printf return value
s390: remove use of seq_printf return value
cris fasttimer: remove use of seq_printf return value
cris: remove use of seq_printf return value
openrisc: remove use of seq_printf return value
ARM: plat-pxa: remove use of seq_printf return value
nios2: cpuinfo: remove use of seq_printf return value
microblaze: mb: remove use of seq_printf return value
ipc: remove use of seq_printf return value
rtc: remove use of seq_printf return value
power: wakeup: remove use of seq_printf return value
x86: mtrr: if: remove use of seq_printf return value
linux/bitmap.h: improve BITMAP_{LAST,FIRST}_WORD_MASK
MAINTAINERS: CREDITS: remove Stefano Brivio from B43
.mailmap: add Ricardo Ribalda
CREDITS: add Ricardo Ribalda Delgado
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This will allow FS that uses VM_PFNMAP | VM_MIXEDMAP (no page structs) to
get notified when access is a write to a read-only PFN.
This can happen if we mmap() a file then first mmap-read from it to
page-in a read-only PFN, than we mmap-write to the same page.
We need this functionality to fix a DAX bug, where in the scenario above
we fail to set ctime/mtime though we modified the file. An xfstest is
attached to this patchset that shows the failure and the fix. (A DAX
patch will follow)
This functionality is extra important for us, because upon dirtying of a
pmem page we also want to RDMA the page to a remote cluster node.
We define a new pfn_mkwrite and do not reuse page_mkwrite because
1 - The name ;-)
2 - But mainly because it would take a very long and tedious
audit of all page_mkwrite functions of VM_MIXEDMAP/VM_PFNMAP
users. To make sure they do not now CRASH. For example current
DAX code (which this is for) would crash.
If we would want to reuse page_mkwrite, We will need to first
patch all users, so to not-crash-on-no-page. Then enable this
patch. But even if I did that I would not sleep so well at night.
Adding a new vector is the safest thing to do, and is not that
expensive. an extra pointer at a static function vector per driver.
Also the new vector is better for performance, because else we
Will call all current Kernel vectors, so to:
check-ha-no-page-do-nothing and return.
No need to call it from do_shared_fault because do_wp_page is called to
change pte permissions anyway.
Signed-off-by: Yigal Korman <yigal@plexistor.com>
Signed-off-by: Boaz Harrosh <boaz@plexistor.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Dave Chinner <david@fromorbit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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no remaining users
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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All places outside of core VFS that checked ->read and ->write for being NULL or
called the methods directly are gone now, so NULL {read,write} with non-NULL
{read,write}_iter will do the right thing in all cases.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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We (the Ocfs2 project) recently moved the location of our ocfs2-tools
git tree and project web page. The pertinent discussion can be seen
here:
https://oss.oracle.com/pipermail/ocfs2-devel/2015-February/010579.html
The following patch updates the Ocfs2 documentation in MAINTAINERS,
ocfs2.txt, and dlmfs.txt. I added our new official web page, changed
the location of our tools git tree and removed the link to Joel's
ancient kernel git tree - Andrew has handled our patches for a while
now.
Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs into for-next
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Reported-by: Fabian Sturm <fabian.sturm@aduu.de>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
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Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
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Allow "lowerdir=" option to contain multiple lower directories separated by
a colon (e.g. "lowerdir=/bin:/usr/bin"). Colon characters in filenames can
be escaped with a backslash.
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
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The DAX code accesses the underlying storage through the kernel's linear
mapping, which may not be cache-coherent with user mappings on ARM, MIPS
or SPARC. Temporarily disable the DAX code until this problem is
resolved.
The original XIP code also had this problem, but it was never noticed.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Andreas Dilger <andreas.dilger@intel.com>
Cc: Boaz Harrosh <boaz@plexistor.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This is a port of the DAX functionality found in the current version of
ext2.
[matthew.r.wilcox@intel.com: heavily tweaked]
[akpm@linux-foundation.org: remap_pages went away]
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Boaz Harrosh <boaz@plexistor.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This new function allows us to support hole-punch for DAX files by zeroing
a partial page, as opposed to the dax_truncate_page() function which can
only truncate to the end of the page. Reimplement dax_truncate_page() to
call dax_zero_page_range().
[ross.zwisler@linux.intel.com: ported to 3.13-rc2]
[akpm@linux-foundation.org: fix typos in comments]
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Andreas Dilger <andreas.dilger@intel.com>
Cc: Boaz Harrosh <boaz@plexistor.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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To help people transition, accept the 'xip' mount option (and report it in
/proc/mounts), but print a message encouraging people to switch over to
the 'dax' option.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andreas Dilger <andreas.dilger@intel.com>
Cc: Boaz Harrosh <boaz@plexistor.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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All callers of get_xip_mem() are now gone. Remove checks for it,
initialisers of it, documentation of it and the only implementation of it.
Also remove mm/filemap_xip.c as it is now empty. Also remove
documentation of the long-gone get_xip_page().
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Cc: Andreas Dilger <andreas.dilger@intel.com>
Cc: Boaz Harrosh <boaz@plexistor.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Based on the original XIP documentation, this documents the current state
of affairs, and includes instructions on how users can enable DAX if their
devices and kernel support it.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Andreas Dilger <andreas.dilger@intel.com>
Cc: Boaz Harrosh <boaz@plexistor.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Ross Zwisler <ross.zwisler@linux.intel.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"Major changes are to:
- add f2fs_io_tracer and F2FS_IOC_GETVERSION
- fix wrong acl assignment from parent
- fix accessing wrong data blocks
- fix wrong condition check for f2fs_sync_fs
- align start block address for direct_io
- add and refactor the readahead flows of FS metadata
- refactor atomic and volatile write policies
But most of patches are for clean-ups and minor bug fixes. Some of
them refactor old code too"
* tag 'for-f2fs-3.20' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (64 commits)
f2fs: use spinlock for segmap_lock instead of rwlock
f2fs: fix accessing wrong indexed data blocks
f2fs: avoid variable length array
f2fs: fix sparse warnings
f2fs: allocate data blocks in advance for f2fs_direct_IO
f2fs: introduce macros to convert bytes and blocks in f2fs
f2fs: call set_buffer_new for get_block
f2fs: check node page contents all the time
f2fs: avoid data offset overflow when lseeking huge file
f2fs: fix to use highmem for pages of newly created directory
f2fs: introduce a batched trim
f2fs: merge {invalidate,release}page for meta/node/data pages
f2fs: show the number of writeback pages in stat
f2fs: keep PagePrivate during releasepage
f2fs: should fail mount when trying to recover data on read-only dev
f2fs: split UMOUNT and FASTBOOT flags
f2fs: avoid write_checkpoint if f2fs is mounted readonly
f2fs: support norecovery mount option
f2fs: fix not to drop mount options when retrying fill_super
f2fs: merge flags in struct f2fs_sb_info
...
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This patch introduces a batched trimming feature, which submits split discard
commands.
This is to avoid long latency due to huge trim commands.
If fstrim was triggered ranging from 0 to the end of device, we should lock
all the checkpoint-related mutexes, resulting in very long latency.
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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This patch adds a mount option, norecovery, which is mostly same as
disable_roll_forward. The only difference is that norecovery should be activated
with read-only mount option.
This can be used when user wants to check whether f2fs is mountable or not
without any recovery process. (e.g., xfstests/200)
Reviewed-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Merge third set of updates from Andrew Morton:
- the rest of MM
[ This includes getting rid of the numa hinting bits, in favor of
just generic protnone logic. Yay. - Linus ]
- core kernel
- procfs
- some of lib/ (lots of lib/ material this time)
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (104 commits)
lib/lcm.c: replace include
lib/percpu_ida.c: remove redundant includes
lib/strncpy_from_user.c: replace module.h include
lib/stmp_device.c: replace module.h include
lib/sort.c: move include inside #if 0
lib/show_mem.c: remove redundant include
lib/radix-tree.c: change to simpler include
lib/plist.c: remove redundant include
lib/nlattr.c: remove redundant include
lib/kobject_uevent.c: remove redundant include
lib/llist.c: remove redundant include
lib/md5.c: simplify include
lib/list_sort.c: rearrange includes
lib/genalloc.c: remove redundant include
lib/idr.c: remove redundant include
lib/halfmd4.c: simplify includes
lib/dynamic_queue_limits.c: simplify includes
lib/sort.c: use simpler includes
lib/interval_tree.c: simplify includes
hexdump: make it return number of bytes placed in buffer
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The output of /proc/$pid/numa_maps is in terms of number of pages like
anon=22 or dirty=54. Here's some output:
7f4680000000 default file=/hugetlb/bigfile anon=50 dirty=50 N0=50
7f7659600000 default file=/anon_hugepage\040(deleted) anon=50 dirty=50 N0=50
7fff8d425000 default stack anon=50 dirty=50 N0=50
Looks like we have a stack and a couple of anonymous hugetlbfs
areas page which both use the same amount of memory. They don't.
The 'bigfile' uses 1GB pages and takes up ~50GB of space. The
anon_hugepage uses 2MB pages and takes up ~100MB of space while the stack
uses normal 4k pages. You can go over to smaps to figure out what the
page size _really_ is with KernelPageSize or MMUPageSize. But, I think
this is a pretty nasty and counterintuitive interface as it stands.
This patch introduces 'kernelpagesize_kB' line element to
/proc/<pid>/numa_maps report file in order to help identifying the size of
pages that are backing memory areas mapped by a given task. This is
specially useful to help differentiating between HUGE and GIGANTIC page
backed VMAs.
This patch is based on Dave Hansen's proposal and reviewer's follow-ups
taken from the following dicussion threads:
* https://lkml.org/lkml/2011/9/21/454
* https://lkml.org/lkml/2014/12/20/66
Signed-off-by: Rafael Aquini <aquini@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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explanation snippet
Add a small section to proc.txt doc in order to document its
/proc/pid/numa_maps interface. It does not introduce any functional
changes, just documentation.
Signed-off-by: Rafael Aquini <aquini@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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