Commit Graph

899988 Commits

Author SHA1 Message Date
Eric Biggers
bfca9d0cc7 ANDROID: dm: prevent default-key from being enabled without needed hooks
While dm-default-key no longer requires that the filesystem is also
using inline encryption (i.e. mounted with '-o inlinecrypt'), it does
still rely on the inline crypto hooks like fscrypt_set_bio_crypt_ctx()
being built into the kernel rather than stubbed out, as these are used
to set the bi_skip_dm_default_key flag on bios for encrypted files.
I.e., CONFIG_FS_ENCRYPTION_INLINE_CRYPT=y is still needed.

The proper solution is to fix these hooks to handle DM_DEFAULT_KEY &&
!FS_ENCRYPTION_INLINE_CRYPT, but that would introduce a case that
wouldn't get tested.  So for now, to avoid problems just make
dm-default-key depend on FS_ENCRYPTION_INLINE_CRYPT.

Test: make gki_defconfig
      echo CONFIG_FS_ENCRYPTION_INLINE_CRYPT=n >> .config
      make olddefconfig
      grep CONFIG_DM_DEFAULT_KEY .config  # was disabled

Bug: 147814592
Change-Id: Ie52686a72d5d14457d87dcf81677e33e291680bb
Signed-off-by: Eric Biggers <ebiggers@google.com>
2020-02-10 18:06:41 +00:00
Greg Kroah-Hartman
e7803e419a ANDROID: sdcardfs: fix up fs parsing calls
The filesystem param parsing logic has changed, so fix up sdcardfs to
use the correct api and not break the build.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I4e8b8f0b4998a852988a710ca18736046e3d8697
2020-02-10 08:40:18 -08:00
Greg Kroah-Hartman
aa601dde64 Merge c9d35ee049 ("Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs") into android-mainline
Tiny steps to deal with merge issues in sdcardfs due to fs param passing
api changes.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I03ba8763e8cc324c25fb6316c363b59957103474
2020-02-10 08:39:09 -08:00
Greg Kroah-Hartman
32aad4282b Merge 236f453294 ("Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs") into android-mainline
Merge right before the filesystem parsing happened to make merges
easier.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I7d2449b3876e6fbd96838f703f13f2c0a7ec0354
2020-02-10 07:53:52 -08:00
Guru Das Srinagesh
d2ee0ef1e0 FROMLIST: pwm: Convert period and duty cycle to u64
Because period and duty cycle are defined as ints with units of
nanoseconds, the maximum time duration that can be set is limited to
~2.147 seconds. Change their definitions to u64 in the structs of the
PWM framework so that higher durations may be set.

Also make the relevant fixes to those drivers that use the period and
duty_cycle struct members in division operations, viz. replacing the
division operations with 64-bit division macros as appropriate.

Bug: 140290586
Link: https://www.spinics.net/lists/linux-pwm/msg11133.html
Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>
Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ife96637115f8f704aef938291eb189cb29378afb
2020-02-10 06:35:58 -08:00
Greg Kroah-Hartman
8885e88692 Merge 4c7d00ccf4 ("Merge tag 'pwm/for-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm") into android-mainline.
This resolves the pwm merge issues with 5.6-rc1.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ie479409535c5fa80046dede9bba4f06b889d8399
2020-02-10 05:38:33 -08:00
Greg Kroah-Hartman
e3ae1a9891 Revert "FROMLIST: pwm: Convert period and duty cycle to u64"
This reverts commit 79650f61a7 as it
causes merge issues with the 5.6-rc1 merge.

Bug: 140290586
Cc: Guru Das Srinagesh <gurus@codeaurora.org>
Cc: Todd Kjos <tkjos@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I397f72b24bc9230cc04c35e77abf1f167147f4de
2020-02-10 05:37:49 -08:00
Will Deacon
527f6994c4 Merge 4fc2ea6a86 ("Merge tag 'iommu-updates-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu") into android-mainline
Merge in 5.6 merge window IOMMU updates and resolve conflicts with
downstream.

Change-Id: I6202f5d22cc4a9d4c60f4f6459e7105e424b781f
Signed-off-by: Will Deacon <willdeacon@google.com>
2020-02-10 12:44:25 +00:00
Linus Torvalds
c9d35ee049 Merge branch 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs file system parameter updates from Al Viro:
 "Saner fs_parser.c guts and data structures. The system-wide registry
  of syntax types (string/enum/int32/oct32/.../etc.) is gone and so is
  the horror switch() in fs_parse() that would have to grow another case
  every time something got added to that system-wide registry.

  New syntax types can be added by filesystems easily now, and their
  namespace is that of functions - not of system-wide enum members. IOW,
  they can be shared or kept private and if some turn out to be widely
  useful, we can make them common library helpers, etc., without having
  to do anything whatsoever to fs_parse() itself.

  And we already get that kind of requests - the thing that finally
  pushed me into doing that was "oh, and let's add one for timeouts -
  things like 15s or 2h". If some filesystem really wants that, let them
  do it. Without somebody having to play gatekeeper for the variants
  blessed by direct support in fs_parse(), TYVM.

  Quite a bit of boilerplate is gone. And IMO the data structures make a
  lot more sense now. -200LoC, while we are at it"

* 'merge.nfs-fs_parse.1' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (25 commits)
  tmpfs: switch to use of invalfc()
  cgroup1: switch to use of errorfc() et.al.
  procfs: switch to use of invalfc()
  hugetlbfs: switch to use of invalfc()
  cramfs: switch to use of errofc() et.al.
  gfs2: switch to use of errorfc() et.al.
  fuse: switch to use errorfc() et.al.
  ceph: use errorfc() and friends instead of spelling the prefix out
  prefix-handling analogues of errorf() and friends
  turn fs_param_is_... into functions
  fs_parse: handle optional arguments sanely
  fs_parse: fold fs_parameter_desc/fs_parameter_spec
  fs_parser: remove fs_parameter_description name field
  add prefix to fs_context->log
  ceph_parse_param(), ceph_parse_mon_ips(): switch to passing fc_log
  new primitive: __fs_parse()
  switch rbd and libceph to p_log-based primitives
  struct p_log, variants of warnf() et.al. taking that one instead
  teach logfc() to handle prefices, give it saner calling conventions
  get rid of cg_invalf()
  ...
2020-02-08 13:26:41 -08:00
Linus Torvalds
236f453294 Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull misc vfs updates from Al Viro:

 - bmap series from cmaiolino

 - getting rid of convolutions in copy_mount_options() (use a couple of
   copy_from_user() instead of the __get_user() crap)

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  saner copy_mount_options()
  fibmap: Reject negative block numbers
  fibmap: Use bmap instead of ->bmap method in ioctl_fibmap
  ecryptfs: drop direct calls to ->bmap
  cachefiles: drop direct usage of ->bmap method.
  fs: Enable bmap() function to properly return errors
2020-02-08 13:04:49 -08:00
Linus Torvalds
995933305e Merge branch 'pipe-exclusive-wakeup'
Merge thundering herd avoidance on pipe IO.

This would have been applied for 5.5 already, but got delayed because of
a user-space race condition in the GNU make jobserver code.  Now that
there's a new GNU make 4.3 release, and most distributions seem to have
at least applied the (almost three year old) fix for the problem, let's
see if people notice.

And it might have been just bad random timing luck on my machine.

If you do hit the race condition, things will still work, but the
symptom is that you don't get nearly the expected parallelism when using
"make -j<N>".

The jobserver bug can definitely happen without this patch too, but
seems to be easier to trigger when we no longer wake up pipe waiters
unnecessarily.

* pipe-exclusive-wakeup:
  pipe: use exclusive waits when reading or writing
2020-02-08 11:44:02 -08:00
Linus Torvalds
0ddad21d3e pipe: use exclusive waits when reading or writing
This makes the pipe code use separate wait-queues and exclusive waiting
for readers and writers, avoiding a nasty thundering herd problem when
there are lots of readers waiting for data on a pipe (or, less commonly,
lots of writers waiting for a pipe to have space).

While this isn't a common occurrence in the traditional "use a pipe as a
data transport" case, where you typically only have a single reader and
a single writer process, there is one common special case: using a pipe
as a source of "locking tokens" rather than for data communication.

In particular, the GNU make jobserver code ends up using a pipe as a way
to limit parallelism, where each job consumes a token by reading a byte
from the jobserver pipe, and releases the token by writing a byte back
to the pipe.

This pattern is fairly traditional on Unix, and works very well, but
will waste a lot of time waking up a lot of processes when only a single
reader needs to be woken up when a writer releases a new token.

A simplified test-case of just this pipe interaction is to create 64
processes, and then pass a single token around between them (this
test-case also intentionally passes another token that gets ignored to
test the "wake up next" logic too, in case anybody wonders about it):

    #include <unistd.h>

    int main(int argc, char **argv)
    {
        int fd[2], counters[2];

        pipe(fd);
        counters[0] = 0;
        counters[1] = -1;
        write(fd[1], counters, sizeof(counters));

        /* 64 processes */
        fork(); fork(); fork(); fork(); fork(); fork();

        do {
                int i;
                read(fd[0], &i, sizeof(i));
                if (i < 0)
                        continue;
                counters[0] = i+1;
                write(fd[1], counters, (1+(i & 1)) *sizeof(int));
        } while (counters[0] < 1000000);
        return 0;
    }

and in a perfect world, passing that token around should only cause one
context switch per transfer, when the writer of a token causes a
directed wakeup of just a single reader.

But with the "writer wakes all readers" model we traditionally had, on
my test box the above case causes more than an order of magnitude more
scheduling: instead of the expected ~1M context switches, "perf stat"
shows

        231,852.37 msec task-clock                #   15.857 CPUs utilized
        11,250,961      context-switches          #    0.049 M/sec
           616,304      cpu-migrations            #    0.003 M/sec
             1,648      page-faults               #    0.007 K/sec
 1,097,903,998,514      cycles                    #    4.735 GHz
   120,781,778,352      instructions              #    0.11  insn per cycle
    27,997,056,043      branches                  #  120.754 M/sec
       283,581,233      branch-misses             #    1.01% of all branches

      14.621273891 seconds time elapsed

       0.018243000 seconds user
       3.611468000 seconds sys

before this commit.

After this commit, I get

          5,229.55 msec task-clock                #    3.072 CPUs utilized
         1,212,233      context-switches          #    0.232 M/sec
           103,951      cpu-migrations            #    0.020 M/sec
             1,328      page-faults               #    0.254 K/sec
    21,307,456,166      cycles                    #    4.074 GHz
    12,947,819,999      instructions              #    0.61  insn per cycle
     2,881,985,678      branches                  #  551.096 M/sec
        64,267,015      branch-misses             #    2.23% of all branches

       1.702148350 seconds time elapsed

       0.004868000 seconds user
       0.110786000 seconds sys

instead. Much better.

[ Note! This kernel improvement seems to be very good at triggering a
  race condition in the make jobserver (in GNU make 4.2.1) for me. It's
  a long known bug that was fixed back in June 2017 by GNU make commit
  b552b0525198 ("[SV 51159] Use a non-blocking read with pselect to
  avoid hangs.").

  But there wasn't a new release of GNU make until 4.3 on Jan 19 2020,
  so a number of distributions may still have the buggy version. Some
  have backported the fix to their 4.2.1 release, though, and even
  without the fix it's quite timing-dependent whether the bug actually
  is hit. ]

Josh Triplett says:
 "I've been hammering on your pipe fix patch (switching to exclusive
  wait queues) for a month or so, on several different systems, and I've
  run into no issues with it. The patch *substantially* improves
  parallel build times on large (~100 CPU) systems, both with parallel
  make and with other things that use make's pipe-based jobserver.

  All current distributions (including stable and long-term stable
  distributions) have versions of GNU make that no longer have the
  jobserver bug"

Tested-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-02-08 11:39:19 -08:00
Greg Kroah-Hartman
8462c91245 Merge d271ab2923 ("Merge tag 'for-linus-5.6-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip") into android-mainline
More baby steps for the 5.6-rc1 merge

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I0e11fa22329a23f2b8b1bec2abdd5446c2ec03cc
2020-02-08 17:17:43 +01:00
Mark Salyzyn
6120a4d780 FROMLIST: overlayfs: override_creds=off option bypass creator_cred
By default, all access to the upper, lower and work directories is the
recorded mounter's MAC and DAC credentials.  The incoming accesses are
checked against the caller's credentials.

If the principles of least privilege are applied, the mounter's
credentials might not overlap the credentials of the caller's when
accessing the overlayfs filesystem.  For example, a file that a lower
DAC privileged caller can execute, is MAC denied to the generally
higher DAC privileged mounter, to prevent an attack vector.

We add the option to turn off override_creds in the mount options; all
subsequent operations after mount on the filesystem will be only the
caller's credentials.  The module boolean parameter and mount option
override_creds is also added as a presence check for this "feature",
existence of /sys/module/overlay/parameters/override_creds.

It was not always this way.  Circa 4.6 there was no recorded mounter's
credentials, instead privileged access to upper or work directories
were temporarily increased to perform the operations.  The MAC
(selinux) policies were caller's in all cases.  override_creds=off
partially returns us to this older access model minus the insecure
temporary credential increases.  This is to permit use in a system
with non-overlapping security models for each executable including
the agent that mounts the overlayfs filesystem.  In Android
this is the case since init, which performs the mount operations,
has a minimal MAC set of privileges to reduce any attack surface,
and services that use the content have a different set of MAC
privileges (eg: read, for vendor labelled configuration, execute for
vendor libraries and modules).  The caveats are not a problem in
the Android usage model, however they should be fixed for
completeness and for general use in time.

Signed-off-by: Mark Salyzyn <salyzyn@android.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Amir Goldstein <amir73il@gmail.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Cc: linux-unionfs@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: kernel-team@android.com

(cherry picked from https://lore.kernel.org/lkml/20191104215253.141818-5-salyzyn@android.com/)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 133515582
Bug: 136124883
Bug: 129319403
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[fixed up for 5.6-rc1 changes]
Change-Id: I7980d18e2a5aa97dd2d9fb291fea6deb649f6a34
2020-02-08 17:13:08 +01:00
Greg Kroah-Hartman
10852347dc ANDROID: dummy-cpufreq: fix up 5.6-rc1 API changes
The cpufreq api changed, so handle it properly in dummy-cpufreq so that
things keep building.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Iaf496cf2777bf0f7fceb388c8d3baabad232b576
2020-02-08 16:06:57 +01:00
Greg Kroah-Hartman
2908995dfe ANDROID: cpufreq_times: fix up 5.6-rc1 api changes
__krealloc() is now gone, so open code the functionality and fix up the
proc_ops change from file_operations.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ic71372c1708d987c7499acfc448c8c4b25e6e043
2020-02-08 16:06:21 +01:00
Greg Kroah-Hartman
8a35207f24 ANDROID: fix up xt_quota2 for proc_ops changes
proc now uses proc_ops, not file_operations, so fix it up to handle the
5.6-rc1 merge.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I80b5ca4448bffa3a0c5cc99a964b7e8aba2450c0
2020-02-08 16:05:35 +01:00
Greg Kroah-Hartman
860f41ebc8 ANDROID: fix up uio_sys_stats to handle recent proc_ops changes
proc files have their own filesystem ops type now, to make things
smaller and simpler.  Fix up this code to handle this, otherwise it
breaks the build.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I683c03a4744cb1356ba92bd5ed98adb395a3d1d5
2020-02-08 15:11:47 +01:00
Greg Kroah-Hartman
791d8a9831 Revert "Revert "FROMLIST: overlayfs: internal getxattr operations without sepolicy checking""
This reverts commit d987f90515 which was
reverting 4aa24aec05.

All should be good now.

Cc: Mark Salyzyn <salyzyn@android.com>
Cc: kernel-team@android.com
Cc: Mark Salyzyn <salyzyn@google.com>
Bug: 133515582
Bug: 136124883
Bug: 129319403
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ic764d90114d41daf6defdbfbc4db43a8c224e6dc
2020-02-08 14:23:00 +01:00
Greg Kroah-Hartman
9406c91e36 Revert "Revert "FROMLIST: overlayfs: handle XATTR_NOSECURITY flag for get xattr method""
This reverts commit 4e35d38c0c which was
commit ba11202b98.

It should now all be good...

Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 133515582
Bug: 136124883
Bug: 129319403
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2020-02-08 14:18:12 +01:00
Greg Kroah-Hartman
a1874d42e3 Merge 7f879e1a94 ("Merge tag 'ovl-update-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs") into android-mainline
This handles the conflicts we had with the overlayfs upstream merge
point in a single place.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I243c97135839d901654c89ff0c8b11712341a1c5
2020-02-08 14:11:43 +01:00
Greg Kroah-Hartman
4e35d38c0c Revert "FROMLIST: overlayfs: handle XATTR_NOSECURITY flag for get xattr method"
This reverts commit ba11202b98 as it was
not upstream and causes problems with the overlayfs upstream merge
point.  It needs to be added back "soon".

Cc: Mark Salyzyn <salyzyn@android.com>
Cc: kernel-team@android.com
Cc: Mark Salyzyn <salyzyn@google.com>
Bug: 133515582
Bug: 136124883
Bug: 129319403
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ib87b89346ee15079d10afc7d3fc924108b70d6bb
2020-02-08 14:11:08 +01:00
Greg Kroah-Hartman
d987f90515 Revert "FROMLIST: overlayfs: internal getxattr operations without sepolicy checking"
This reverts commit 4aa24aec05 as it was
not upstream and causes problems with the overlayfs upstream merge
point.  It needs to be added back "soon".

Cc: Mark Salyzyn <salyzyn@android.com>
Cc: kernel-team@android.com
Cc: Mark Salyzyn <salyzyn@google.com>
Bug: 133515582
Bug: 136124883
Bug: 129319403
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ic429c8b13181fbaaf7e060b463e86bb9a06ad66e
2020-02-08 14:10:46 +01:00
Greg Kroah-Hartman
5905d79c33 Revert "FROMLIST: overlayfs: override_creds=off option bypass creator_cred"
This reverts commit 0ee40e0e58 as it was
not upstream and causes problems with the overlayfs upstream merge
point.  It needs to be added back "soon".

Cc: Mark Salyzyn <salyzyn@android.com>
Cc: kernel-team@android.com
Cc: Mark Salyzyn <salyzyn@google.com>
Bug: 133515582
Bug: 136124883
Bug: 129319403
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I16c3ff9cbb6f9fd5342cef26a4fa773abe2db812
2020-02-08 14:09:29 +01:00
Greg Kroah-Hartman
1f77f18bb8 Merge a45ad71e89 ("Merge tag 'rproc-v5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc") into android-mainline
Another "small" merge point to handle conflicts in a sane way.

Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I5dc2f5f11275b29f3c9b5b8d4dd59864ceb6faf9
2020-02-08 13:32:37 +01:00
Linus Torvalds
f757165705 Merge tag 'fuse-fixes-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:

 - Fix a regression introduced in v5.1 that triggers WARNINGs for some
   fuse filesystems

 - Fix an xfstest failure

 - Allow overlayfs to be used on top of fuse/virtiofs

 - Code and documentation cleanups

* tag 'fuse-fixes-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
  fuse: use true,false for bool variable
  Documentation: filesystems: convert fuse to RST
  fuse: Support RENAME_WHITEOUT flag
  fuse: don't overflow LLONG_MAX with end offset
  fix up iter on short count in fuse_direct_io()
2020-02-07 17:59:07 -08:00
Linus Torvalds
175787e011 Merge tag 'gfs2-for-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2
Pull gfs2 fixes from Andreas Gruenbacher:

 - Fix a bug in Abhi Das's journal head lookup improvements that can
   cause a valid journal to be rejected.

 - Fix an O_SYNC write handling bug reported by Christoph Hellwig.

* tag 'gfs2-for-5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: fix O_SYNC write handling
  gfs2: move setting current->backing_dev_info
  gfs2: fix gfs2_find_jhead that returns uninitialized jhead with seq 0
2020-02-07 17:54:46 -08:00
Linus Torvalds
60ea27e936 Merge tag 'for-linus-5.6-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux
Pull orangefs fix from Mike Marshall:
 "Debugfs fix for orangefs.

  Vasliy Averin noticed that 'if seq_file .next function does not change
  position index, read after some lseek can generate unexpected output'
  and sent in this fix"

* tag 'for-linus-5.6-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
  help_next should increase position index
2020-02-07 17:52:38 -08:00
Linus Torvalds
08dffcc7d9 Merge tag 'nfsd-5.6' of git://linux-nfs.org/~bfields/linux
Pull nfsd updates from Bruce Fields:
 "Highlights:

   - Server-to-server copy code from Olga.

     To use it, client and both servers must have support, the target
     server must be able to access the source server over NFSv4.2, and
     the target server must have the inter_copy_offload_enable module
     parameter set.

   - Improvements and bugfixes for the new filehandle cache, especially
     in the container case, from Trond

   - Also from Trond, better reporting of write errors.

   - Y2038 work from Arnd"

* tag 'nfsd-5.6' of git://linux-nfs.org/~bfields/linux: (55 commits)
  sunrpc: expiry_time should be seconds not timeval
  nfsd: make nfsd_filecache_wq variable static
  nfsd4: fix double free in nfsd4_do_async_copy()
  nfsd: convert file cache to use over/underflow safe refcount
  nfsd: Define the file access mode enum for tracing
  nfsd: Fix a perf warning
  nfsd: Ensure sampling of the write verifier is atomic with the write
  nfsd: Ensure sampling of the commit verifier is atomic with the commit
  sunrpc: clean up cache entry add/remove from hashtable
  sunrpc: Fix potential leaks in sunrpc_cache_unhash()
  nfsd: Ensure exclusion between CLONE and WRITE errors
  nfsd: Pass the nfsd_file as arguments to nfsd4_clone_file_range()
  nfsd: Update the boot verifier on stable writes too.
  nfsd: Fix stable writes
  nfsd: Allow nfsd_vfs_write() to take the nfsd_file as an argument
  nfsd: Fix a soft lockup race in nfsd_file_mark_find_or_create()
  nfsd: Reduce the number of calls to nfsd_file_gc()
  nfsd: Schedule the laundrette regularly irrespective of file errors
  nfsd: Remove unused constant NFSD_FILE_LRU_RESCAN
  nfsd: Containerise filecache laundrette
  ...
2020-02-07 17:50:21 -08:00
Linus Torvalds
f43574d0ac Merge tag 'nfs-for-5.6-1' of git://git.linux-nfs.org/projects/anna/linux-nfs
Puyll NFS client updates from Anna Schumaker:
 "Stable bugfixes:
   - Fix memory leaks and corruption in readdir # v2.6.37+
   - Directory page cache needs to be locked when read # v2.6.37+

  New features:
   - Convert NFS to use the new mount API
   - Add "softreval" mount option to let clients use cache if server goes down
   - Add a config option to compile without UDP support
   - Limit the number of inactive delegations the client can cache at once
   - Improved readdir concurrency using iterate_shared()

  Other bugfixes and cleanups:
   - More 64-bit time conversions
   - Add additional diagnostic tracepoints
   - Check for holes in swapfiles, and add dependency on CONFIG_SWAP
   - Various xprtrdma cleanups to prepare for 5.7's changes
   - Several fixes for NFS writeback and commit handling
   - Fix acls over krb5i/krb5p mounts
   - Recover from premature loss of openstateids
   - Fix NFS v3 chacl and chmod bug
   - Compare creds using cred_fscmp()
   - Use kmemdup_nul() in more places
   - Optimize readdir cache page invalidation
   - Lease renewal and recovery fixes"

* tag 'nfs-for-5.6-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (93 commits)
  NFSv4.0: nfs4_do_fsinfo() should not do implicit lease renewals
  NFSv4: try lease recovery on NFS4ERR_EXPIRED
  NFS: Fix memory leaks
  nfs: optimise readdir cache page invalidation
  NFS: Switch readdir to using iterate_shared()
  NFS: Use kmemdup_nul() in nfs_readdir_make_qstr()
  NFS: Directory page cache pages need to be locked when read
  NFS: Fix memory leaks and corruption in readdir
  SUNRPC: Use kmemdup_nul() in rpc_parse_scope_id()
  NFS: Replace various occurrences of kstrndup() with kmemdup_nul()
  NFSv4: Limit the total number of cached delegations
  NFSv4: Add accounting for the number of active delegations held
  NFSv4: Try to return the delegation immediately when marked for return on close
  NFS: Clear NFS_DELEGATION_RETURN_IF_CLOSED when the delegation is returned
  NFSv4: nfs_inode_evict_delegation() should set NFS_DELEGATION_RETURNING
  NFS: nfs_find_open_context() should use cred_fscmp()
  NFS: nfs_access_get_cached_rcu() should use cred_fscmp()
  NFSv4: pnfs_roc() must use cred_fscmp() to compare creds
  NFS: remove unused macros
  nfs: Return EINVAL rather than ERANGE for mount parse errors
  ...
2020-02-07 17:39:56 -08:00
Alistair Delva
c4834220ee ANDROID: gki_defconfig: Relocate INCREMENTAL_FS
Ensure we build incrementalfs.ko as a module. As GKI is not ready for
module artifacts, move this to the board fragments.

Bug: 133435829
Change-Id: Ice50969b49b437606a0d9fd64844c8cfff05536e
Signed-off-by: Alistair Delva <adelva@google.com>
2020-02-07 14:34:52 -08:00
Linus Torvalds
41dcd67e88 Merge tag 'docs-5.6-2' of git://git.lwn.net/linux
Pull Documentation fixes from Jonathan Corbet:
 "A handful of small documentation fixes that wandered in"

* tag 'docs-5.6-2' of git://git.lwn.net/linux:
  Allow git builds of Sphinx
  Documentation: changes.rst: update several outdated project URLs
  Documentation: build warnings related to missing blank lines after explicit markups has been fixed
  mailmap: add entry for Tiezhu Yang
  Documentation/ko_KR/howto: Update a broken link
  Documentation/ko_KR/howto: Update broken web addresses
  docs/locking: Fix outdated section names
2020-02-07 13:03:10 -08:00
Linus Torvalds
11777ee8b0 Merge branch 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux
Pull i2c updates from Wolfram Sang:
 "i2c core:

   - huge improvements and refactorizations of the Linux I2C
     documentation (lots of thanks to Luca for doing it and Jean for the
     careful review)

   - subsystem wide API conversion to i2c_new_client_device()

   - remove obsolete parport-light driver

   - smaller core updates (removal of 'extern', enabling more compile
     testing, use more helper macros)

   - and quite a bunch of driver updates (new IDs, simplifications,
     better PM, support of atomic transfers and other improvements)

  i2c-mux:

   - The main feature is the idle-state rework of the pca954x driver
     from Biwen Li

  at24 driver:

   - minor maintenance: update the license tag, sort headers

   - move support for the write-protect pin into nvmem core

   - add a reference to the new wp-gpios property in nvmem to at25
     bindings

   - add support for regulator and pm_runtime control"

* 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (91 commits)
  i2c: cros-ec-tunnel: Fix ACPI identifier
  i2c: cros-ec-tunnel: Fix slave device enumeration
  i2c: stm32f7: add PM_SLEEP suspend/resume support
  i2c: cadence: Fix wording in i2c-cadence driver
  i2c: cadence: Fix power management order of operations
  i2c: cadence: Fix error printing in case of defer
  i2c: cadence: Handle transfer_size rollover
  i2c: i801: Add support for Intel Comet Lake PCH-V
  docs: i2c: writing-clients: properly name the stop condition
  docs: i2c: i2c-protocol: use same wording as smbus-protocol
  docs: i2c: rename sections so the overall picture is clearer
  docs: i2c: old-module-parameters: use monospace instead of ""
  docs: i2c: old-module-parameters: clarify this is for obsolete kernels
  docs: i2c: old-module-parameters: fix internal hyperlink
  docs: i2c: instantiating-devices: use monospace for sysfs attributes
  docs: i2c: instantiating-devices: rearrange static instatiation
  docs: i2c: instantiating-devices: fix internal hyperlink
  docs: i2c: smbus-protocol: improve I2C Block transactions description
  docs: i2c: smbus-protocol: fix punctuation
  docs: i2c: smbus-protocol: fix typo
  ...
2020-02-07 12:54:13 -08:00
Linus Torvalds
ed39ba0ec1 Merge tag 'acpi-5.6-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
 "Add Hisilicon Hip08-Lite I2C controller clock frequency support to the
  ACPI driver for AMD SoCs (APD) and to the Designware I2C driver
  (Hanjun Guo)"

* tag 'acpi-5.6-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  i2c: designware: Add ACPI HID for Hisilicon Hip08-Lite I2C controller
  ACPI / APD: Add clock frequency for Hisilicon Hip08-Lite I2C controller
2020-02-07 12:51:54 -08:00
Linus Torvalds
ba7dcfc7ba Merge tag 'pm-5.6-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:

 - Update the recently merged CPR (Core Power Reduction) support in the
   AVS (Adaptive Voltage Scaling) subsystem (Brendan Higgins, Nathan
   Chancellor, Niklas Cassel)

 - Update the rockchip-io AVS driver (Heiko Stuebner)

 - Add two more module parameters to intel_idle on top of the recently
   merged material (Rafael Wysocki)

 - Clean up a piece of cpuidle documentation and consolidate system
   sleep states documentation (Rafael Wysocki)

* tag 'pm-5.6-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  cpuidle: Documentation: Clean up PM QoS description
  Documentation: admin-guide: PM: Update sleep states documentation
  intel_idle: Introduce 'states_off' module parameter
  intel_idle: Introduce 'use_acpi' module parameter
  power: avs: qcom-cpr: Avoid clang -Wsometimes-uninitialized in cpr_scale
  power: avs: qcom-cpr: add unspecified HAS_IOMEM dependency
  PM / AVS: rockchip-io: fix the supply naming for the emmc supply on px30
  power: avs: qcom-cpr: add a printout after the driver has been initialized
2020-02-07 12:49:10 -08:00
Linus Torvalds
c16b99d6c5 Merge tag 'drm-next-2020-02-07' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
 "Just some fixes for this merge window: the tegra changes fix some
  regressions in the merge, nouveau has a few modesetting fixes.

  The amdgpu fixes are bit bigger, but they contain a couple of weeks of
  fixes, and don't seem to contain anything that isn't really a fix.

  Summary:

  tegra:
   - merge window regression fixes

  nouveau:
   - couple of volta/turing modesetting fixes

  amdgpu:
   - EDC fixes for Arcturus
   - GDDR6 memory training fixe
   - Fix for reading gfx clockgating registers while in GFXOFF state
   - i2c freq fixes
   - Misc display fixes
   - TLB invalidation fix when using semaphores
   - VCN 2.5 instancing fixes
   - Switch raven1 gfxoff to a blacklist
   - Coreboot workaround for KV/KB
   - Root cause dongle fixes for display and revert workaround
   - Enable GPU reset for renoir and navi
   - Navi overclocking fixes
   - Fix up confusing warnings in display clock validation on raven

  amdkfd:
   - SDMA fix

  radeon:
   - Misc LUT fixes"

* tag 'drm-next-2020-02-07' of git://anongit.freedesktop.org/drm/drm: (90 commits)
  gpu: host1x: Set DMA direction only for DMA-mapped buffer objects
  drm/tegra: Reuse IOVA mapping where possible
  drm/tegra: Relax IOMMU usage criteria on old Tegra
  drm/amd/dm/mst: Ignore payload update failures
  drm/amdgpu: update default voltage for boot od table for navi1x
  drm/amdgpu/smu10: fix smu10_get_clock_by_type_with_voltage
  drm/amdgpu/smu10: fix smu10_get_clock_by_type_with_latency
  drm/amdgpu/display: handle multiple numbers of fclks in dcn_calcs.c (v2)
  drm/amdgpu: fetch default VDDC curve voltages (v2)
  drm/amdgpu/smu_v11_0: Correct behavior of restoring default tables (v2)
  drm/amdgpu/navi10: add OD_RANGE for navi overclocking
  drm/amdgpu/navi: fix index for OD MCLK
  drm/amd/display: Fix HW/SW state mismatch
  drm/amd/display: Fix a typo when computing dsc configuration
  drm/amd/powerplay: fix navi10 system intermittent reboot issue V2
  drm/amdkfd: Fix a bug in SDMA RLC queue counting under HWS mode
  drm/amd/display: Only enable cursor on pipes that need it
  drm/nouveau/kms/gv100-: avoid sending a core update until the first modeset
  drm/nouveau/kms/gv100-: move window ownership setup into modesetting path
  drm/nouveau/disp/gv100-: halt NV_PDISP_FE_RM_INTR_STAT_CTRL_DISP_ERROR storms
  ...
2020-02-07 12:46:08 -08:00
Linus Torvalds
8bf5973a4e Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
 "A collection of fixes:

   - Make of_clk.h self contained

   - Fix new qcom DT bindings that just merged to match the DTS files

   - Fix qcom clk driver to properly detect DFS clk frequencies

   - Fix the ls1028a driver to not deref a pointer before assigning it"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  of: clk: Make <linux/of_clk.h> self-contained
  clk: qcom: Use ARRAY_SIZE in videocc-sc7180 for parent clocks
  clk: qcom: Get rid of the test clock for videocc-sc7180
  dt-bindings: clock: Cleanup qcom,videocc bindings for sdm845/sc7180
  clk: qcom: Use ARRAY_SIZE in gpucc-sc7180 for parent clocks
  clk: qcom: Get rid of the test clock for gpucc-sc7180
  dt-bindings: clock: Fix qcom,gpucc bindings for sdm845/sc7180/msm8998
  clk: qcom: Use ARRAY_SIZE in dispcc-sc7180 for parent clocks
  clk: qcom: Get rid of the test clock for dispcc-sc7180
  clk: qcom: Get rid of fallback global names for dispcc-sc7180
  dt-bindings: clock: Fix qcom,dispcc bindings for sdm845/sc7180
  clk: qcom: rcg2: Don't crash if our parent can't be found; return an error
  clk: ls1028a: fix a dereference of pointer 'parent' before a null check
  dt-bindings: clk: qcom: Fix self-validation, split, and clean cruft
  clk: qcom: Don't overwrite 'cfg' in clk_rcg2_dfs_populate_freq()
2020-02-07 12:40:50 -08:00
Linus Torvalds
b34f01f76a Merge tag 'linux-watchdog-5.6-rc1' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:

 - add IT8786 chipset ID

 - addition of sam9x60 compatible watchdog

 - da9062 improvements

 - fix UAF in reboot notifier handling in watchdog core code

 - other fixes and small improvements

* tag 'linux-watchdog-5.6-rc1' of git://www.linux-watchdog.org/linux-watchdog:
  watchdog: da9062: make restart handler atomic safe
  watchdog: mtk_wdt: mt2712: Add reset controller
  watchdog: mtk_wdt: mt8183: Add reset controller
  dt-bindings: mediatek: mt2712: Add #reset-cells
  dt-bindings: mediatek: mt8183: Add #reset-cells
  dt-bindings: watchdog: da9062: add suspend disable option
  watchdog: it87_wdt: add IT8786 ID
  watchdog: dw_wdt: ping watchdog to reset countdown before start
  watchdog: fix UAF in reboot notifier handling in watchdog core code
  watchdog: cadence: Skip printing pointer value
  watchdog: qcom: Use platform_get_irq_optional() for bark irq
  watchdog: da9062: add power management ops
  watchdog: make DesignWare watchdog allow users to set bigger timeout value
  drivers: watchdog: stm32_iwdg: set WDOG_HW_RUNNING at probe
  watchdog: sama5d4_wdt: addition of sam9x60 compatible watchdog
2020-02-07 12:30:16 -08:00
Linus Torvalds
e0f121c5cc Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio updates from Michael Tsirkin:
 "Some bug fixes/cleanups.

  The deprecated scsi passthrough for virtio_blk is removed"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
  virtio_balloon: Fix memory leaks on errors in virtballoon_probe()
  virtio-balloon: Fix memory leak when unloading while hinting is in progress
  virtio_balloon: prevent pfn array overflow
  virtio-blk: remove VIRTIO_BLK_F_SCSI support
  virtio-pci: check name when counting MSI-X vectors
  virtio-balloon: initialize all vq callbacks
  virtio-mmio: convert to devm_platform_ioremap_resource
2020-02-07 12:26:34 -08:00
Linus Torvalds
9b7fa2880f Merge tag 'xtensa-20200206' of git://github.com/jcmvbkbc/linux-xtensa
Pull xtensa updates from Max Filippov:

 - reorganize exception vectors placement

 - small cleanups (drop unused functions/headers/defconfig entries,
   spelling fixes)

* tag 'xtensa-20200206' of git://github.com/jcmvbkbc/linux-xtensa:
  xtensa: ISS: improve simcall assembly
  xtensa: reorganize vectors placement
  xtensa: separate SMP and XIP support
  xtensa: move fast exception handlers close to vectors
  arch/xtensa: fix Kconfig typos for HAVE_SMP
  xtensa: clean up optional XCHAL_* definitions
  xtensa: drop unused function fast_coprocessor_double
  xtensa: drop empty platform_* functions from platforms
  xtensa: clean up platform headers
  xtensa: drop set_except_vector declaration
  xtensa: configs: Cleanup old Kconfig IO scheduler options
2020-02-07 12:22:29 -08:00
Al Viro
f35aa2bc80 tmpfs: switch to use of invalfc()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-02-07 14:48:44 -05:00
Al Viro
58c025f0e8 cgroup1: switch to use of errorfc() et.al.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-02-07 14:48:43 -05:00
Al Viro
bf45f7fcc4 procfs: switch to use of invalfc()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-02-07 14:48:42 -05:00
Al Viro
b5db30cfb9 hugetlbfs: switch to use of invalfc()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-02-07 14:48:42 -05:00
Al Viro
e1ee7d8511 cramfs: switch to use of errofc() et.al.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-02-07 14:48:41 -05:00
Al Viro
77cb271e6a gfs2: switch to use of errorfc() et.al.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-02-07 14:48:41 -05:00
Al Viro
2e28c49ea6 fuse: switch to use errorfc() et.al.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-02-07 14:48:40 -05:00
Al Viro
d53d0f7461 ceph: use errorfc() and friends instead of spelling the prefix out
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-02-07 14:48:39 -05:00
Al Viro
a3ff937b33 prefix-handling analogues of errorf() and friends
called errorfc/infofc/warnfc/invalfc

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-02-07 14:48:39 -05:00
Al Viro
328de5287b turn fs_param_is_... into functions
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2020-02-07 14:48:38 -05:00