wrapfs-3.3.y.git
3 years agoWrapfs: add ->bmap support wrapfs
Erez Zadok [Fri, 13 May 2022 23:42:17 +0000 (19:42 -0400)]
Wrapfs: add ->bmap support

Signed-off-by: Aditya Sonavane <aditya.sonavane@stonybrook.edu>
Signed-off-by: Erez Zadok <ezk@cs.stonybrook.edu>
3 years agowrapfs: copyright year update
Erez Zadok [Sat, 7 May 2022 22:12:48 +0000 (18:12 -0400)]
wrapfs: copyright year update

3 years agowrapfs: change http URLs to https
Erez Zadok [Sat, 7 May 2022 20:48:42 +0000 (16:48 -0400)]
wrapfs: change http URLs to https

5 years agomerge changes
Erez Zadok [Mon, 16 Dec 2019 00:02:08 +0000 (19:02 -0500)]
merge changes

5 years agowrapfs: update copyright
Erez Zadok [Sat, 14 Dec 2019 05:06:50 +0000 (00:06 -0500)]
wrapfs: update copyright

5 years agowrapfs: remove unused variable
Erez Zadok [Sat, 14 Dec 2019 04:22:14 +0000 (23:22 -0500)]
wrapfs: remove unused variable

6 years agoupdate copyright
Erez Zadok [Fri, 29 Mar 2019 20:46:23 +0000 (16:46 -0400)]
update copyright

6 years agofix spell error
Erez Zadok [Fri, 29 Mar 2019 20:40:30 +0000 (16:40 -0400)]
fix spell error

8 years agoWrapfs: ->iget fixes
Erez Zadok [Sun, 19 Feb 2017 00:11:23 +0000 (19:11 -0500)]
Wrapfs: ->iget fixes

Change where we igrab/iput to ensure we always hold a valid lower_inode.
Return ENOMEM (not EACCES) if iget5_locked returns NULL.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
8 years agoWrapfs: update copyrights for 2017
Erez Zadok [Sat, 18 Feb 2017 20:19:52 +0000 (15:19 -0500)]
Wrapfs: update copyrights for 2017

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
9 years agoWrapfs: support NFS exports
Erez Zadok [Sun, 22 May 2016 05:28:37 +0000 (01:28 -0400)]
Wrapfs: support NFS exports

Based on patch from Sandeep Joshi <sanjos100@gmail.com>.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
9 years agoWrapfs: use d_splice_alias
Erez Zadok [Sun, 22 May 2016 05:28:37 +0000 (01:28 -0400)]
Wrapfs: use d_splice_alias

Refactor interpose code to allow lookup to use d_splice_alias.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
9 years agoWrapfs: update nlinks after rename
Erez Zadok [Mon, 14 Dec 2015 23:40:31 +0000 (18:40 -0500)]
Wrapfs: update nlinks after rename

Signed-off-by: Logeswari P Viswanath <logeswari.pv@hpe.com>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
9 years agoWrapfs: update copyright year to 2015
Erez Zadok [Wed, 4 Nov 2015 06:26:18 +0000 (01:26 -0500)]
Wrapfs: update copyright year to 2015

9 years agoWrapfs: use vfs xattr helpers
Erez Zadok [Wed, 4 Nov 2015 06:26:18 +0000 (01:26 -0500)]
Wrapfs: use vfs xattr helpers

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
11 years agoWrapfs: properly copy meta-data after AIO operations from lower inode
Erez Zadok [Sat, 16 Aug 2014 03:24:09 +0000 (23:24 -0400)]
Wrapfs: properly copy meta-data after AIO operations from lower inode

Signed-off-by: Mengyang Li <li.mengyang@stonybrook.edu>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
11 years agoWrapfs: leave placeholders for updating upper inode after AIO
Erez Zadok [Mon, 11 Aug 2014 23:01:28 +0000 (19:01 -0400)]
Wrapfs: leave placeholders for updating upper inode after AIO

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
11 years agoWrapfs: protect lower_file by ref-count during aio operation
Erez Zadok [Sun, 10 Aug 2014 06:56:35 +0000 (02:56 -0400)]
Wrapfs: protect lower_file by ref-count during aio operation

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Signed-off-by: Mengyang Li <li.mengyang@stonybrook.edu>
11 years agoWrapfs: fix ->llseek to update upper and lower offsets
Erez Zadok [Thu, 26 Jun 2014 03:25:16 +0000 (23:25 -0400)]
Wrapfs: fix ->llseek to update upper and lower offsets

Fixes bug: xfstests generic/257. f_pos consistently is required by and
only by dir_ops->wrapfs_readdir, main_ops is not affected.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Signed-off-by: Mengyang Li <li.mengyang@stonybrook.edu>
11 years ago Wrapfs: support extended attributes (xattr) operations
Erez Zadok [Thu, 26 Jun 2014 03:25:16 +0000 (23:25 -0400)]
 Wrapfs: support extended attributes (xattr) operations

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Signed-off-by: Mengyang Li <li.mengyang@stonybrook.edu>
11 years agoWrapfs: support asynchronous-IO (AIO) operations
Erez Zadok [Sat, 21 Jun 2014 00:29:58 +0000 (20:29 -0400)]
Wrapfs: support asynchronous-IO (AIO) operations

Signed-off-by: Li Mengyang <li.mengyang@stonybrook.edu>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
11 years agoWrapfs: support direct-IO (DIO) operations
Erez Zadok [Sat, 21 Jun 2014 00:29:58 +0000 (20:29 -0400)]
Wrapfs: support direct-IO (DIO) operations

Signed-off-by: Li Mengyang <li.mengyang@stonybrook.edu>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
11 years agoWrapfs: implement vm_ops->page_mkwrite
Erez Zadok [Thu, 15 May 2014 04:16:04 +0000 (00:16 -0400)]
Wrapfs: implement vm_ops->page_mkwrite

Some file systems (e.g., ext4) require it.  Reported by Ted Ts'o.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
11 years agoWrapfs: update documentation
Erez Zadok [Thu, 3 Apr 2014 18:08:53 +0000 (14:08 -0400)]
Wrapfs: update documentation

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
11 years agoWrapfs: update maintainers
Erez Zadok [Thu, 3 Apr 2014 18:08:44 +0000 (14:08 -0400)]
Wrapfs: update maintainers

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
11 years agoWrapfs: update documentation
Erez Zadok [Tue, 21 Jan 2014 08:21:52 +0000 (03:21 -0500)]
Wrapfs: update documentation

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
11 years agoWrapfs: 2014 Copyright update
Erez Zadok [Tue, 21 Jan 2014 06:16:57 +0000 (01:16 -0500)]
Wrapfs: 2014 Copyright update

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: copy lower inode attributes in ->ioctl
Erez Zadok [Wed, 5 Jun 2013 05:44:34 +0000 (01:44 -0400)]
Wrapfs: copy lower inode attributes in ->ioctl

Some ioctls (e.g., EXT2_IOC_SETFLAGS) can change inode attributes, so copy
them from lower inode.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: remove unnecessary call to vm_unmap in ->mmap
Erez Zadok [Wed, 5 Jun 2013 05:43:34 +0000 (01:43 -0400)]
Wrapfs: remove unnecessary call to vm_unmap in ->mmap

Code is unnecessary and causes deadlocks in newer kernels.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agopatch copyright-2013.patch
Erez Zadok [Mon, 3 Jun 2013 01:55:18 +0000 (21:55 -0400)]
patch copyright-2013.patch

12 years agoWrapfs: use mode_t
Erez Zadok [Tue, 31 Jan 2012 09:40:19 +0000 (04:40 -0500)]
Wrapfs: use mode_t

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: use set_nlink()
Erez Zadok [Mon, 30 Jan 2012 01:34:27 +0000 (20:34 -0500)]
Wrapfs: use set_nlink()

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: drop our dentry in ->rmdir
Erez Zadok [Fri, 9 Sep 2011 04:47:49 +0000 (00:47 -0400)]
Wrapfs: drop our dentry in ->rmdir

Also clear nlinks on our inode.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: use d_alloc_root
Erez Zadok [Tue, 6 Sep 2011 04:10:32 +0000 (00:10 -0400)]
Wrapfs: use d_alloc_root

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: use d_set_d_op
Erez Zadok [Tue, 6 Sep 2011 04:10:31 +0000 (00:10 -0400)]
Wrapfs: use d_set_d_op

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: use updated vfs_path_lookup prototype
Erez Zadok [Tue, 6 Sep 2011 04:10:30 +0000 (00:10 -0400)]
Wrapfs: use updated vfs_path_lookup prototype

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: ->fsync updates for new prototype
Erez Zadok [Tue, 6 Sep 2011 04:10:30 +0000 (00:10 -0400)]
Wrapfs: ->fsync updates for new prototype

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: support LOOKUP_RCU in ->d_revalidate
Erez Zadok [Tue, 6 Sep 2011 04:10:29 +0000 (00:10 -0400)]
Wrapfs: support LOOKUP_RCU in ->d_revalidate

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: new ->permission prototype and fixes.
Erez Zadok [Tue, 6 Sep 2011 04:10:28 +0000 (00:10 -0400)]
Wrapfs: new ->permission prototype and fixes.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: lookup fixes
Erez Zadok [Mon, 2 May 2011 06:00:02 +0000 (02:00 -0400)]
Wrapfs: lookup fixes

Don't use lookup_one_len any longer (doesn't work for NFS).
Initialize lower wrapfs_dentry_info so lower_path is NULL.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: remove extra debug in rmdir
Erez Zadok [Fri, 18 Mar 2011 17:14:28 +0000 (13:14 -0400)]
Wrapfs: remove extra debug in rmdir

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: checkpatch fixes
Erez Zadok [Fri, 18 Mar 2011 16:38:01 +0000 (12:38 -0400)]
Wrapfs: checkpatch fixes

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: port to 2.6.39
Erez Zadok [Fri, 18 Mar 2011 04:45:17 +0000 (00:45 -0400)]
Wrapfs: port to 2.6.39

Remove lock/unlock_kernel in ->fasync.
Convert from ->get_sb to ->mount op.
Remove include to smp_lock.h, added sched.h.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: copyright update for 2011
Erez Zadok [Fri, 18 Mar 2011 03:21:55 +0000 (23:21 -0400)]
Wrapfs: copyright update for 2011

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: better handling of NFS silly-renamed files
Erez Zadok [Fri, 18 Mar 2011 03:21:55 +0000 (23:21 -0400)]
Wrapfs: better handling of NFS silly-renamed files

In ->unlink, if we try to unlink an NFS silly-renamed file, NFS returns
-EBUSY.  We have to treat it as a success and return 0 to the VFS.  NFS will
remove silly-deleted files later on anyway.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: update parent directory inode size in inode ops
Erez Zadok [Fri, 18 Mar 2011 03:21:55 +0000 (23:21 -0400)]
Wrapfs: update parent directory inode size in inode ops

After ->unlink, ->rmdir, and ->rename, we need to copy the (possibly
changed) inode size of the parent directory(ies) where the operation took
place.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: remove unnecessary calls to copy lower inode->n_links
Erez Zadok [Fri, 18 Mar 2011 03:21:55 +0000 (23:21 -0400)]
Wrapfs: remove unnecessary calls to copy lower inode->n_links

Removed from ->create, ->symlink, and ->mknod.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: ->setattr fixes
Erez Zadok [Tue, 8 Mar 2011 04:20:33 +0000 (23:20 -0500)]
Wrapfs: ->setattr fixes

Call inode_change_ok on our inode, not lower.
Don't copy inode sizes (VFS does it).
Pass lower file in struct iattr passed to notify_change on lower inode.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: update ->permission prototye and code for new iperm flag
Erez Zadok [Sun, 6 Mar 2011 21:23:16 +0000 (16:23 -0500)]
Wrapfs: update ->permission prototye and code for new iperm flag

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: handle maxbytes properly
Erez Zadok [Fri, 12 Nov 2010 23:15:05 +0000 (18:15 -0500)]
Wrapfs: handle maxbytes properly

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: support ->unlocked_ioctl and ->compat_ioctl
Erez Zadok [Sat, 11 Sep 2010 19:49:33 +0000 (15:49 -0400)]
Wrapfs: support ->unlocked_ioctl and ->compat_ioctl

Old ->ioctl was split into ->unlocked_ioctl and ->compat_ioctl.  Compat
version doesn't need to lock_kernel any longer.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: new vfs_statfs and ->evict_inode prototypes
Erez Zadok [Wed, 11 Aug 2010 03:50:14 +0000 (23:50 -0400)]
Wrapfs: new vfs_statfs and ->evict_inode prototypes

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: update ->fsync prototype
Erez Zadok [Sat, 7 Aug 2010 03:37:29 +0000 (23:37 -0400)]
Wrapfs: update ->fsync prototype

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: update documentation
Erez Zadok [Wed, 21 Apr 2010 01:22:02 +0000 (21:22 -0400)]
Wrapfs: update documentation

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: include slab.h
Erez Zadok [Tue, 20 Apr 2010 19:32:09 +0000 (15:32 -0400)]
Wrapfs: include slab.h

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: avoid an extra path_get/put pair in wrapfs_open
Erez Zadok [Tue, 20 Apr 2010 19:26:02 +0000 (15:26 -0400)]
Wrapfs: avoid an extra path_get/put pair in wrapfs_open

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: decrement nd_path on follow_link error
Erez Zadok [Fri, 26 Feb 2010 08:18:04 +0000 (03:18 -0500)]
Wrapfs: decrement nd_path on follow_link error

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: don't mention kernel version in modload message
Erez Zadok [Tue, 5 Jan 2010 09:27:00 +0000 (04:27 -0500)]
Wrapfs: don't mention kernel version in modload message

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs/VFS: remove init_lower_nd and unexport release_lower_nd
Erez Zadok [Tue, 5 Jan 2010 09:28:11 +0000 (04:28 -0500)]
Wrapfs/VFS: remove init_lower_nd and unexport release_lower_nd

Only wrapfs_create used it, and it is unnecessary to init a completely new
nameidata for the lower file system.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoKconfig: hook to configure Wrapfs
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Kconfig: hook to configure Wrapfs

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoMakefile: hook to compile Wrapfs
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Makefile: hook to compile Wrapfs

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoVFS: export release_open_intent symbol
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
VFS: export release_open_intent symbol

Needed to release the resources of the lower nameidata structures that we
create and pass to lower file systems (e.g., when calling vfs_create).

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: file system magic number
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Wrapfs: file system magic number

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: Kconfig options
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Wrapfs: Kconfig options

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: main Makefile
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Wrapfs: main Makefile

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: vm_ops operations
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Wrapfs: vm_ops operations

Includes necessary address_space workaround ops.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: mount-time and module-linkage functions
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Wrapfs: mount-time and module-linkage functions

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: lookup-related functions
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Wrapfs: lookup-related functions

Main lookup function, nameidata helpers, and stacking-interposition
functions.

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: file operations
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Wrapfs: file operations

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: dentry operations
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Wrapfs: dentry operations

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: inode operations
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Wrapfs: inode operations

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: superblock operations
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Wrapfs: superblock operations

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: main header file
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Wrapfs: main header file

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: Maintainers
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Wrapfs: Maintainers

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoDocumentation: index entry for Wrapfs
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Documentation: index entry for Wrapfs

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
12 years agoWrapfs: introduction and usage documentation
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Wrapfs: introduction and usage documentation

Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
13 years agoLinux 3.3.8 master v3.3.8
Greg Kroah-Hartman [Fri, 1 Jun 2012 07:16:13 +0000 (15:16 +0800)]
Linux 3.3.8

13 years agomd: Avoid OOPS when reshaping raid1 to raid0
Jes Sorensen [Sun, 1 Apr 2012 13:48:38 +0000 (23:48 +1000)]
md: Avoid OOPS when reshaping raid1 to raid0

commit 24b961f811a3e790a9b93604d2594bfb6cce4fa4 upstream.

raid1 arrays do not have the notion of chunk size. Calculate the
largest chunk sector size we can use to avoid a divide by zero OOPS
when aligning the size of the new array to the chunk size.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agortlwifi: rtl8192de: Fix firmware initialization
Larry Finger [Tue, 3 Apr 2012 20:31:41 +0000 (15:31 -0500)]
rtlwifi: rtl8192de: Fix firmware initialization

commit 0298dc9f2273fb2d596ae10d7700f054bfce601d upstream.

Before the switch to asynchronous firmware loading (mainline commit b0302ab),
it was necessary to load firmware when initializing the first of the units
in a dual-mac system. After the change, it is necessary to load firmware in
both units.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agoi2c: tegra: notify transfer-complete after clearing status.
Laxman Dewangan [Mon, 7 May 2012 06:46:19 +0000 (12:16 +0530)]
i2c: tegra: notify transfer-complete after clearing status.

commit c889e91d2cc22123f20f40dde0c0a91856a20eea upstream.

The notification of the transfer complete by calling complete()
should be done after clearing all interrupt status.
This avoids the race condition of misconfigure the i2c controller
in multi-core environment.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agoi2c: davinci: Free requested IRQ in remove
Marcus Folkesson [Thu, 3 May 2012 13:56:36 +0000 (15:56 +0200)]
i2c: davinci: Free requested IRQ in remove

commit 9868a060ccf769c08ec378a9829137e272e9a92c upstream.

The freed IRQ is not necessary the one requested in probe.
Even if it was, with two or more i2c-controllers it will fails anyway.

Signed-off-by: Marcus Folkesson <marcus.folkesson@gmail.com>
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agoMCE: Fix vm86 handling for 32bit mce handler
Andi Kleen [Fri, 19 Nov 2010 12:16:22 +0000 (13:16 +0100)]
MCE: Fix vm86 handling for 32bit mce handler

commit a129a7c84582629741e5fa6f40026efcd7a65bd4 upstream.

When running on 32bit the mce handler could misinterpret
vm86 mode as ring 0. This can affect whether it does recovery
or not; it was possible to panic when recovery was actually
possible.

Fix this by always forcing vm86 to look like ring 3.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agoARM: 7409/1: Do not call flush_cache_user_range with mmap_sem held
Dima Zavin [Mon, 30 Apr 2012 09:26:14 +0000 (10:26 +0100)]
ARM: 7409/1: Do not call flush_cache_user_range with mmap_sem held

commit 435a7ef52db7d86e67a009b36cac1457f8972391 upstream.

We can't be holding the mmap_sem while calling flush_cache_user_range
because the flush can fault. If we fault on a user address, the
page fault handler will try to take mmap_sem again. Since both places
acquire the read lock, most of the time it succeeds. However, if another
thread tries to acquire the write lock on the mmap_sem (e.g. mmap) in
between the call to flush_cache_user_range and the fault, the down_read
in do_page_fault will deadlock.

[will: removed drop of vma parameter as already queued by rmk (7365/1)]

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Dima Zavin <dima@android.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agoARM: 7365/1: drop unused parameter from flush_cache_user_range
Dima Zavin [Thu, 29 Mar 2012 19:44:06 +0000 (20:44 +0100)]
ARM: 7365/1: drop unused parameter from flush_cache_user_range

commit 4542b6a0fa6b48d9ae6b41c1efeb618b7a221b2a upstream.

vma isn't used and flush_cache_user_range isn't a standard macro that
is used on several archs with the same prototype. In fact only unicore32
has a macro with the same name (with an identical implementation and no
in-tree users).

This is a part of a patch proposed by Dima Zavin (with Message-id:
1272439931-12795-1-git-send-email-dima@android.com) that didn't get
accepted.

Cc: Dima Zavin <dima@android.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agortlwifi: fix for race condition when firmware is cached
Larry Finger [Fri, 4 May 2012 13:27:43 +0000 (08:27 -0500)]
rtlwifi: fix for race condition when firmware is cached

commit 574e02abaf816b582685805f0c1150ca9f1f18ee upstream.

In commit b0302ab, the rtlwifi family of drivers was converted to use
asynchronous firmware loading. Unfortumately, the implementation was
racy, and the ieee80211 routines could be started before rtl_init_core()
was called to setup the data.

This patch fixes the bug noted in https://bugzilla.kernel.org/show_bug.cgi?id=43187.

Reported-by: Joshua Roys <Joshua.Roys@gtri.gatech.edu>
Tested-by: Neptune Ning <frostyplanet@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agoiommu: Fix off by one in dmar_get_fault_reason()
Dan Carpenter [Sun, 13 May 2012 17:09:38 +0000 (20:09 +0300)]
iommu: Fix off by one in dmar_get_fault_reason()

commit fefe1ed1398b81e3fadc92d11d91162d343c8836 upstream.

fault_reason - 0x20 == ARRAY_SIZE(irq_remap_fault_reasons) is
one past the end of the array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Joerg Roedel <joerg.roedel@amd.com>
Cc: Youquan Song <youquan.song@intel.com>
Cc: walter harms <wharms@bfs.de>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Link: http://lkml.kernel.org/r/20120513170938.GA4280@elgon.mountain
Signed-off-by: Ingo Molnar <mingo@kernel.org>
[bwh: Backported to 3.2: s/irq_remap_fault_reasons/intr_remap_fault_reasons/]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agointel-iommu: Add device info into list before doing context mapping
David Woodhouse [Fri, 25 May 2012 16:42:54 +0000 (17:42 +0100)]
intel-iommu: Add device info into list before doing context mapping

commit e2ad23d04c1304431ab5176c89b7b476ded2d995 upstream.

Add device info into list before doing context mapping, because device
info will be used by iommu_enable_dev_iotlb(). Without it, ATS won't get
enabled as it should be.

ATS, while a dubious decision from a security point of view, can be very
important for performance.

Signed-off-by: Xudong Hao <xudong.hao@intel.com>
Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Acked-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agotile: fix bug where fls(0) was not returning 0
Chris Metcalf [Fri, 25 May 2012 16:32:09 +0000 (12:32 -0400)]
tile: fix bug where fls(0) was not returning 0

commit 9f1d62bed7f015d11b9164078b7fea433b474114 upstream.

This is because __builtin_clz(0) returns 64 for the "undefined" case
of 0, since the builtin just does a right-shift 32 and "clz" instruction.
So, use the alpha approach of casting to u32 and using __builtin_clzll().

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agommc: omap_hsmmc: pass IRQF_ONESHOT to request_threaded_irq
Ming Lei [Thu, 17 May 2012 02:27:12 +0000 (10:27 +0800)]
mmc: omap_hsmmc: pass IRQF_ONESHOT to request_threaded_irq

commit db35f83ef47b5f180f2670d11f5f93992314ea09 upstream.

The flag of IRQF_ONESHOT should be passed to request_threaded_irq,
otherwise the following failure message should be dumped because
hardware handler is defined as NULL:

[    3.383483] genirq: Threaded irq requested with handler=NULL and
!ONESHOT for irq 368
[    3.392730] omap_hsmmc: probe of omap_hsmmc.0 failed with error -22

The patch fixes one kernel hang bug which is caused by mmc card
probe failure and root device can't be brought up.

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agommc: cd-gpio: protect against NULL context in mmc_cd_gpio_free()
Guennadi Liakhovetski [Tue, 24 Apr 2012 15:56:29 +0000 (17:56 +0200)]
mmc: cd-gpio: protect against NULL context in mmc_cd_gpio_free()

commit 0e9f480bb553d39ee06ccd45639ba7a5446a7b81 upstream.

Do not oops, even if mmc_cd_gpio_free() is mistakenly called on a driver
cleanup path, even though a previous call to mmc_cd_gpio_request() failed.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
[stable@: please apply to 3.3-stable]
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agommc: sdio: avoid spurious calls to interrupt handlers
Nicolas Pitre [Mon, 16 Apr 2012 23:16:54 +0000 (19:16 -0400)]
mmc: sdio: avoid spurious calls to interrupt handlers

commit bbbc4c4d8c5face097d695f9bf3a39647ba6b7e7 upstream.

Commit 06e8935feb ("optimized SDIO IRQ handling for single irq")
introduced some spurious calls to SDIO function interrupt handlers,
such as when the SDIO IRQ thread is started, or the safety check
performed upon a system resume.  Let's add a flag to perform the
optimization only when a real interrupt is signaled by the host
driver and we know there is no point confirming it.

Reported-by: Sujit Reddy Thumma <sthumma@codeaurora.org>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agox86/mce: Fix check for processor context when machine check was taken.
Tony Luck [Wed, 23 May 2012 21:14:22 +0000 (14:14 -0700)]
x86/mce: Fix check for processor context when machine check was taken.

commit 875e26648cf9b6db9d8dc07b7959d7c61fb3f49c upstream.

Linus pointed out that there was no value is checking whether m->ip
was zero - because zero is a legimate value.  If we have a reliable
(or faked in the VM86 case) "m->cs" we can use it to tell whether we
were in user mode or kernelwhen the machine check hit.

Reported-by: Linus Torvalds <torvalds@linuxfoundation.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agox86, relocs: Add jiffies and jiffies_64 to the relative whitelist
H. Peter Anvin [Thu, 24 May 2012 14:01:38 +0000 (07:01 -0700)]
x86, relocs: Add jiffies and jiffies_64 to the relative whitelist

commit ea17e7414bc62e8d3bde8d08e3df1d921c518c17 upstream.

The symbol jiffies is created in the linker script as an alias to
jiffies_64.  Unfortunately this is done outside any section, and
apparently GNU ld 2.21 doesn't carry the section with it, so we end up
with an absolute symbol and therefore a broken kernel.

Add jiffies and jiffies_64 to the whitelist.

The most disturbing bit with this discovery is that it shows that we
have had multiple linker bugs in this area crossing multiple
generations, and have been silently building bad kernels for some time.

Link: http://lkml.kernel.org/r/20120524171604.0d98284f3affc643e9714470@canb.auug.org.au
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agox86-32, relocs: Whitelist more symbols for ld bug workaround
H. Peter Anvin [Wed, 23 May 2012 21:02:34 +0000 (14:02 -0700)]
x86-32, relocs: Whitelist more symbols for ld bug workaround

commit fd952815307f0f272bf49fd364a7fd2f9992bc42 upstream.

As noted in checkin:

a3e854d95 x86, relocs: Workaround for binutils 2.22.52.0.1 section bug

ld version 2.22.52.0.[12] can incorrectly promote relative symbols to
absolute, if the output section they appear in is otherwise empty.

Since checkin:

6520fe55 x86, realmode: 16-bit real-mode code support for relocs tool

we actually check for this and error out rather than silently creating
a kernel which will malfunction if relocated.

Ingo found a configuration in which __start_builtin_fw triggered the
warning.

Go through the linker script sources and look for more symbols that
could plausibly get bogusly promoted to absolute, and add them to the
whitelist.

In general, if the following error triggers:

Invalid absolute R_386_32 relocation: <symbol>

... then we should verify that <symbol> is really meant to be
relocated, and add it and any related symbols manually to the S_REL
regexp.

Please note that 6520fe55 does not introduce the error, only the check
for the error -- without 6520fe55 this version of ld will simply
produce a corrupt kernel if CONFIG_RELOCATABLE is set on x86-32.

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agox86, relocs: Build clean fix
Jarkko Sakkinen [Mon, 21 May 2012 17:51:24 +0000 (20:51 +0300)]
x86, relocs: Build clean fix

commit b2d668da9307c4c163dd603d2bb3cadb10f9fd37 upstream.

relocs was not cleaned up when "make clean" is issued. This
patch fixes the issue.

Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
Link: http://lkml.kernel.org/r/1337622684-6834-1-git-send-email-jarkko.sakkinen@intel.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agox86, relocs: When printing an error, say relative or absolute
H. Peter Anvin [Fri, 18 May 2012 16:52:01 +0000 (09:52 -0700)]
x86, relocs: When printing an error, say relative or absolute

commit 24ab82bd9bf18f3efc69a131d73577940941e1b7 upstream.

When the relocs tool throws an error, let the error message say if it
is an absolute or relative symbol.  This should make it a lot more
clear what action the programmer needs to take and should help us find
the reason if additional symbol bugs show up.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agox86, relocs: Workaround for binutils 2.22.52.0.1 section bug
H. Peter Anvin [Fri, 18 May 2012 07:24:09 +0000 (00:24 -0700)]
x86, relocs: Workaround for binutils 2.22.52.0.1 section bug

commit a3e854d95a76862cd37937e0b0438f540536771a upstream.

GNU ld 2.22.52.0.1 has a bug that it blindly changes symbols from
section-relative to absolute if they are in a section of zero length.
This turns the symbols __init_begin and __init_end into absolute
symbols.  Let the relocs program know that those should be treated as
relative symbols.

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Cc: H.J. Lu <hjl.tools@gmail.com>
Cc: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agox86, realmode: 16-bit real-mode code support for relocs tool
H. Peter Anvin [Tue, 8 May 2012 18:22:24 +0000 (21:22 +0300)]
x86, realmode: 16-bit real-mode code support for relocs tool

commit 6520fe5564acf07ade7b18a1272db1184835c487 upstream.

A new option is added to the relocs tool called '--realmode'.
This option causes the generation of 16-bit segment relocations
and 32-bit linear relocations for the real-mode code. When
the real-mode code is moved to the low-memory during kernel
initialization, these relocation entries can be used to
relocate the code properly.

In the assembly code 16-bit segment relocations must be relative
to the 'real_mode_seg' absolute symbol. Linear relocations must be
relative to a symbol prefixed with 'pa_'.

16-bit segment relocation is used to load cs:ip in 16-bit code.
Linear relocations are used in the 32-bit code for relocatable
data references. They are declared in the linker script of the
real-mode code.

The relocs tool is moved to arch/x86/tools/relocs.c, and added new
target archscripts that can be used to build scripts needed building
an architecture.  be compiled before building the arch/x86 tree.

[ hpa: accelerating this because it detects invalid absolute
  relocations, a serious bug in binutils 2.22.52.0.x which currently
  produces bad kernels. ]

[ jsakkine: applied against 3.3.7 ]

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1336501366-28617-2-git-send-email-jarkko.sakkinen@intel.com
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agomedia: uvcvideo: Fix ENUMINPUT handling
Laurent Pinchart [Wed, 21 Mar 2012 12:50:36 +0000 (09:50 -0300)]
media: uvcvideo: Fix ENUMINPUT handling

commit 31c5f0c5e25ed71eeced170f113bb590f2f1f6f3 upstream.

Properly validate the user-supplied index against the number of inputs.
The code used the pin local variable instead of the index by mistake.

Reported-by: Jozef Vesely <vesely@gjh.sk>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
13 years agosmsusb: add autodetection support for USB ID 2040:c0a0
Michael Krufky [Thu, 22 Mar 2012 16:55:05 +0000 (13:55 -0300)]
smsusb: add autodetection support for USB ID 2040:c0a0

commit 4d1b58b84472d1d300a66e1c5fd765b21e74ba15 upstream.

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>