Commits · 719ea2fbb553ab3f61a174a4b5861289dcc46cb1 · nexedi / linux

25 Oct, 2013 30 commits
- new helpers: lock_mount_hash/unlock_mount_hash · 719ea2fb
  Al Viro authored Sep 29, 2013
```
aka br_write_{lock,unlock} of vfsmount_lock.  Inlines in fs/mount.h,
vfsmount_lock extern moved over there as well.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  719ea2fb
- don't bother with vfsmount_lock in mounts_poll() · aab407fc
  Al Viro authored Sep 29, 2013
```
wake_up_interruptible/poll_wait provide sufficient barriers;
just use ACCESS_ONCE() to fetch ns->event and that's it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  aab407fc
- namespace.c: get rid of mnt_ghosts · aba809cf
  Al Viro authored Sep 28, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  aba809cf
- fold dup_mnt_ns() into its only surviving caller · 9559f689
  Al Viro authored Sep 28, 2013
```
should've been done 6 years ago...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  9559f689
- mnt_set_expiry() doesn't need vfsmount_lock · f6b742d8
  Al Viro authored Sep 28, 2013
```
->mnt_expire is protected by namespace_sem
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  f6b742d8
- finish_automount() doesn't need vfsmount_lock for removal from expiry list · 22a79192
  Al Viro authored Sep 28, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  22a79192
- fs/namespace.c: bury long-dead define · 085e83ff
  Al Viro authored Sep 28, 2013
```
MNT_WRITER_UNDERFLOW_LIMIT has been missed 4 years ago when it became unused.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  085e83ff
- fold mntfree() into mntput_no_expire() · 649a795a
  Al Viro authored Sep 28, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  649a795a
- do_remount(): pull touch_mnt_namespace() up · 6339dab8
  Al Viro authored Sep 16, 2013
```
... and don't bother with dropping and regaining vfsmount_lock
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  6339dab8
- dup_mnt_ns(): get rid of pointless grabbing of vfsmount_lock · aa7a574d
  Al Viro authored Sep 16, 2013
```
mnt_list is protected by namespace_sem, not vfsmount_lock
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  aa7a574d
- fs_is_visible only needs namespace_sem held shared · 44bb4385
  Al Viro authored Sep 16, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  44bb4385
- initialize namespace_sem statically · 59aa0da8
  Al Viro authored Sep 16, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  59aa0da8
- file->f_op is never NULL... · 72c2d531
  Al Viro authored Sep 22, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  72c2d531
- rtl8188eu: remove dead code · 22bd002e
  Al Viro authored Sep 22, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  22bd002e
- dmxdev: get rid of pointless clearing ->f_op · 79b185dd
  Al Viro authored Sep 22, 2013
```
nobody else will see that struct file after return from ->release()
anyway; just leave ->f_op as is and let __fput() do that fops_put().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  79b185dd
- consolidate the reassignments of ->f_op in ->open() instances · e84f9e57
  Al Viro authored Sep 22, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  e84f9e57
- put_mnt_ns(): use drop_collected_mounts() · 7b00ed6f
  Al Viro authored Sep 16, 2013
```
... rather than open-coding it
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  7b00ed6f
- ncpfs: switch to %p[dD] · 84eb3532
  Al Viro authored Sep 16, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  84eb3532
- ubifs: switch to %pd · 4cb2a01d
  Al Viro authored Sep 16, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  4cb2a01d
- sunrpc: switch to %pd · 1e903eda
  Al Viro authored Sep 16, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  1e903eda
- nfsd: switch to %p[dD] · a6a9f18f
  Al Viro authored Sep 16, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  a6a9f18f
- nfs: use %p[dD] instead of open-coded (and often racy) equivalents · 6de1472f
  Al Viro authored Sep 16, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  6de1472f
- befs: split symlink iops in two - for short and long symlinks resp. · 48bc06e7
  Al Viro authored Sep 16, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  48bc06e7
- new helper: kfree_put_link() · 87dc800b
  Al Viro authored Sep 16, 2013
```
duplicated to hell and back...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  87dc800b
- libfs: get exports to definitions of objects being exported... · 12f38872
  Al Viro authored Sep 15, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  12f38872
- ecryptfs: ->lower_path.dentry is never NULL · cbe9c085
  Al Viro authored Sep 15, 2013
```
... on anything found via ->d_fsdata
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  cbe9c085
- ecryptfs: get rid of ecryptfs_set_dentry_lower{,_mnt} · 92dd1230
  Al Viro authored Sep 15, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  92dd1230
- ecryptfs: don't leave RCU pathwalk immediately · 2edbfbf1
  Al Viro authored Sep 15, 2013
```
If the underlying dentry doesn't have ->d_revalidate(), there's no need to
force dropping out of RCU mode.  All we need for that is to make freeing
ecryptfs_dentry_info RCU-delayed.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  2edbfbf1
- ecryptfs: check DCACHE_OP_REVALIDATE instead of ->d_op · 3a93e17c
  Al Viro authored Sep 15, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  3a93e17c
- 9p: make v9fs_cache_inode_{get,put,set}_cookie empty inlines for !9P_CACHEFS · ceaec15d
  Al Viro authored Sep 17, 2013
```
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
```
  ceaec15d
06 Oct, 2013 4 commits

Linux 3.12-rc4 · d0e639c9
Linus Torvalds authored Oct 06, 2013

d0e639c9

net: Update the sysctl permissions handler to test effective uid/gid · 2433c8f0

Eric W. Biederman authored Oct 05, 2013

Modify the code to use current_euid(), and in_egroup_p, as in done
in fs/proc/proc_sysctl.c:test_perm()

Cc: stable@vger.kernel.org
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Reported-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2433c8f0

Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending · 13caa8ed

Linus Torvalds authored Oct 06, 2013

Pull SCSI target fixes from Nicholas Bellinger:
 "Here are the outstanding target fixes queued up for v3.12-rc4 code.

  The highlights include:

   - Make vhost/scsi tag percpu_ida_alloc() use GFP_ATOMIC
   - Allow sess_cmd_map allocation failure fallback to use vzalloc
   - Fix COMPARE_AND_WRITE se_cmd->data_length bug with FILEIO backends
   - Fixes for COMPARE_AND_WRITE callback recursive failure OOPs + non
     zero scsi_status bug
   - Make iscsi-target do acknowledgement tag release from RX context
   - Setup iscsi-target with extra (cmdsn_depth / 2) percpu_ida tags

  Also included is a iscsi-target patch CC'ed for v3.10+ that avoids
  legacy wait_for_task=true release during fast-past StatSN
  acknowledgement, and two other SRP target related patches that address
  long-standing issues that are CC'ed for v3.3+.

  Extra thanks to Thomas Glanzmann for his testing feedback with
  COMPARE_AND_WRITE + EXTENDED_COPY VAAI logic"

* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
  iscsi-target; Allow an extra tag_num / 2 number of percpu_ida tags
  iscsi-target: Perform release of acknowledged tags from RX context
  iscsi-target: Only perform wait_for_tasks when performing shutdown
  target: Fail on non zero scsi_status in compare_and_write_callback
  target: Fix recursive COMPARE_AND_WRITE callback failure
  target: Reset data_length for COMPARE_AND_WRITE to NoLB * block_size
  ib_srpt: always set response for task management
  target: Fall back to vzalloc upon ->sess_cmd_map kzalloc failure
  vhost/scsi: Use GFP_ATOMIC with percpu_ida_alloc for obtaining tag
  ib_srpt: Destroy cm_id before destroying QP.
  target: Fix xop->dbl assignment in target_xcopy_parse_segdesc_02

13caa8ed

Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma · 831ae3c1

Linus Torvalds authored Oct 06, 2013

Pull slave-dmaengine fixes from Vinod Koul:
 "Here is the slave dmanegine fixes.  We have the fix for deadlock issue
  on imx-dma by Michael and Josh's edma config fix along with author
  change"

* 'fixes' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: imx-dma: fix callback path in tasklet
  dmaengine: imx-dma: fix lockdep issue between irqhandler and tasklet
  dmaengine: imx-dma: fix slow path issue in prep_dma_cyclic
  dma/Kconfig: Make TI_EDMA select TI_PRIV_EDMA
  edma: Update author email address

831ae3c1

05 Oct, 2013 6 commits

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs · e62063d6

Linus Torvalds authored Oct 05, 2013

Pull btrfs fixes from Chris Mason:
 "This is a small collection of fixes, including a regression fix from
  Liu Bo that solves rare crashes with compression on.

  I've merged my for-linus up to 3.12-rc3 because the top commit is only
  meant for 3.12.  The rest of the fixes are also available in my master
  branch on top of my last 3.11 based pull"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
  btrfs: Fix crash due to not allocating integrity data for a bioset
  Btrfs: fix a use-after-free bug in btrfs_dev_replace_finishing
  Btrfs: eliminate races in worker stopping code
  Btrfs: fix crash of compressed writes
  Btrfs: fix transid verify errors when recovering log tree

e62063d6

Merge tag 'gpio-v3.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio · 85f6d2db

Linus Torvalds authored Oct 05, 2013

Pull GPIO fixes from Linus Walleij:
 "Two patches for the OMAP driver, dealing with setting up IRQs properly
  on the device tree boot path"

* tag 'gpio-v3.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio/omap: auto-setup a GPIO when used as an IRQ
  gpio/omap: maintain GPIO and IRQ usage separately

85f6d2db

Merge tag 'usb-3.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb · 4ed54764

Linus Torvalds authored Oct 05, 2013

Pull USB fixes from Greg KH:
 "Here are none fixes for various USB driver problems.  The majority are
  gadget/musb fixes, but there are some new device ids in here as well"

* tag 'usb-3.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: chipidea: add Intel Clovertrail pci id
  usb: gadget: s3c-hsotg: fix can_write limit for non-periodic endpoints
  usb: gadget: f_fs: fix error handling
  usb: musb: dsps: do not bind to "musb-hdrc"
  USB: serial: option: Ignore card reader interface on Huawei E1750
  usb: musb: gadget: fix otg active status flag
  usb: phy: gpio-vbus: fix deferred probe from __init
  usb: gadget: pxa25x_udc: fix deferred probe from __init
  usb: musb: fix otg default state

4ed54764

Merge tag 'tty-3.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty · e3757a1f

Linus Torvalds authored Oct 05, 2013

Pull tty fixes from Greg KH:
 "Here are two tty driver fixes for 3.12-rc4.

  One fixes the reported regression in the n_tty code that a number of
  people found recently, and the other one fixes an issue with xen
  consoles that broke in 3.10"

* tag 'tty-3.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
  xen/hvc: allow xenboot console to be used again
  tty: Fix pty master read() after slave closes

e3757a1f

Merge tag 'staging-3.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging · 20fa7867

Linus Torvalds authored Oct 05, 2013

Pull staging fixes from Greg KH:
 "Here are 4 tiny staging and iio driver fixes for 3.12-rc4.  Nothing
  major, just some small fixes for reported issues"

* tag 'staging-3.12-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
  staging: comedi: ni_65xx: (bug fix) confine insn_bits to one subdevice
  iio:magnetometer: Bugfix magnetometer default output registers
  iio: Remove debugfs entries in iio_device_unregister()
  iio: amplifiers: ad8366: Remove regulator_put

20fa7867

btrfs: Fix crash due to not allocating integrity data for a bioset · b208c2f7

Darrick J. Wong authored Sep 19, 2013

When btrfs creates a bioset, we must also allocate the integrity data pool.
Otherwise btrfs will crash when it tries to submit a bio to a checksumming
disk:

 BUG: unable to handle kernel NULL pointer dereference at 0000000000000018
 IP: [<ffffffff8111e28a>] mempool_alloc+0x4a/0x150
 PGD 2305e4067 PUD 23063d067 PMD 0
 Oops: 0000 [#1] PREEMPT SMP
 Modules linked in: btrfs scsi_debug xfs ext4 jbd2 ext3 jbd mbcache
sch_fq_codel eeprom lpc_ich mfd_core nfsd exportfs auth_rpcgss af_packet
raid6_pq xor zlib_deflate libcrc32c [last unloaded: scsi_debug]
 CPU: 1 PID: 4486 Comm: mount Not tainted 3.12.0-rc1-mcsum #2
 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
 task: ffff8802451c9720 ti: ffff880230698000 task.ti: ffff880230698000
 RIP: 0010:[<ffffffff8111e28a>]  [<ffffffff8111e28a>] mempool_alloc+0x4a/0x150
 RSP: 0018:ffff880230699688  EFLAGS: 00010286
 RAX: 0000000000000001 RBX: 0000000000000000 RCX: 00000000005f8445
 RDX: 0000000000000001 RSI: 0000000000000010 RDI: 0000000000000000
 RBP: ffff8802306996f8 R08: 0000000000011200 R09: 0000000000000008
 R10: 0000000000000020 R11: ffff88009d6e8000 R12: 0000000000011210
 R13: 0000000000000030 R14: ffff8802306996b8 R15: ffff8802451c9720
 FS:  00007f25b8a16800(0000) GS:ffff88024fc80000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
 CR2: 0000000000000018 CR3: 0000000230576000 CR4: 00000000000007e0
 Stack:
  ffff8802451c9720 0000000000000002 ffffffff81a97100 0000000000281250
  ffffffff81a96480 ffff88024fc99150 ffff880228d18200 0000000000000000
  0000000000000000 0000000000000040 ffff880230e8c2e8 ffff8802459dc900
 Call Trace:
  [<ffffffff811b2208>] bio_integrity_alloc+0x48/0x1b0
  [<ffffffff811b26fc>] bio_integrity_prep+0xac/0x360
  [<ffffffff8111e298>] ? mempool_alloc+0x58/0x150
  [<ffffffffa03e8041>] ? alloc_extent_state+0x31/0x110 [btrfs]
  [<ffffffff81241579>] blk_queue_bio+0x1c9/0x460
  [<ffffffff8123e58a>] generic_make_request+0xca/0x100
  [<ffffffff8123e639>] submit_bio+0x79/0x160
  [<ffffffffa03f865e>] btrfs_map_bio+0x48e/0x5b0 [btrfs]
  [<ffffffffa03c821a>] btree_submit_bio_hook+0xda/0x110 [btrfs]
  [<ffffffffa03e7eba>] submit_one_bio+0x6a/0xa0 [btrfs]
  [<ffffffffa03ef450>] read_extent_buffer_pages+0x250/0x310 [btrfs]
  [<ffffffff8125eef6>] ? __radix_tree_preload+0x66/0xf0
  [<ffffffff8125f1c5>] ? radix_tree_insert+0x95/0x260
  [<ffffffffa03c66f6>] btree_read_extent_buffer_pages.constprop.128+0xb6/0x120
[btrfs]
  [<ffffffffa03c8c1a>] read_tree_block+0x3a/0x60 [btrfs]
  [<ffffffffa03caefd>] open_ctree+0x139d/0x2030 [btrfs]
  [<ffffffffa03a282a>] btrfs_mount+0x53a/0x7d0 [btrfs]
  [<ffffffff8113ab0b>] ? pcpu_alloc+0x8eb/0x9f0
  [<ffffffff81167305>] ? __kmalloc_track_caller+0x35/0x1e0
  [<ffffffff81176ba0>] mount_fs+0x20/0xd0
  [<ffffffff81191096>] vfs_kern_mount+0x76/0x120
  [<ffffffff81193320>] do_mount+0x200/0xa40
  [<ffffffff81135cdb>] ? strndup_user+0x5b/0x80
  [<ffffffff81193bf0>] SyS_mount+0x90/0xe0
  [<ffffffff8156d31d>] system_call_fastpath+0x1a/0x1f
 Code: 4c 8d 75 a8 4c 89 6d e8 45 89 e0 4c 8d 6f 30 48 89 5d d8 41 83 e0 af 48
89 fb 49 83 c6 18 4c 89 7d f8 65 4c 8b 3c 25 c0 b8 00 00 <48> 8b 73 18 44 89 c7
44 89 45 98 ff 53 20 48 85 c0 48 89 c2 74
 RIP  [<ffffffff8111e28a>] mempool_alloc+0x4a/0x150
  RSP <ffff880230699688>
 CR2: 0000000000000018
 ---[ end trace 7a96042017ed21e2 ]---
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

b208c2f7