Erez Zadok [Sun, 22 May 2016 04:41:20 +0000 (00:41 -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>
Erez Zadok [Wed, 4 Nov 2015 04:35:30 +0000 (23:35 -0500)]
Wrapfs: update copyright year to 2015
Erez Zadok [Wed, 4 Nov 2015 04:35:30 +0000 (23:35 -0500)]
Wrapfs: use vfs xattr helpers
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sat, 16 Aug 2014 02:56:54 +0000 (22:56 -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>
Erez Zadok [Mon, 11 Aug 2014 22:30:05 +0000 (18:30 -0400)]
Wrapfs: leave placeholders for updating upper inode after AIO
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sun, 10 Aug 2014 04:59:12 +0000 (00:59 -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>
Erez Zadok [Thu, 26 Jun 2014 02:40:51 +0000 (22:40 -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>
Erez Zadok [Thu, 26 Jun 2014 02:40:51 +0000 (22:40 -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>
Erez Zadok [Sat, 21 Jun 2014 00:03:07 +0000 (20:03 -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>
Erez Zadok [Sat, 21 Jun 2014 00:03:07 +0000 (20:03 -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>
Erez Zadok [Thu, 15 May 2014 04:16:03 +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>
Erez Zadok [Thu, 3 Apr 2014 17:24:28 +0000 (13:24 -0400)]
Wrapfs: update documentation
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Thu, 3 Apr 2014 17:17:55 +0000 (13:17 -0400)]
Wrapfs: update maintainers
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 21 Jan 2014 08:03:00 +0000 (03:03 -0500)]
Wrapfs: update documentation
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 21 Jan 2014 06:25:54 +0000 (01:25 -0500)]
Wrapfs: 2014 Copyright update
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 27 Nov 2013 04:05:22 +0000 (23:05 -0500)]
Wrapfs: use generic put_link helper
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 27 Nov 2013 04:03:46 +0000 (23:03 -0500)]
Wrapfs: remove unnecessary initializations
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Sun, 24 Nov 2013 16:12:07 +0000 (11:12 -0500)]
Wrapfs: remove deprecated init_lower_nd
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 20 Nov 2013 00:00:00 +0000 (19:00 -0500)]
Wrapfs: update MAINTAINERS info
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 19 Nov 2013 23:59:47 +0000 (18:59 -0500)]
patch wrapfs-copyright-update.patch
Erez Zadok [Tue, 19 Nov 2013 22:23:31 +0000 (17:23 -0500)]
Wrapfs: use DCACHE_OP_REVALIDATE flag in ->d_revalidate
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 19 Nov 2013 22:22:31 +0000 (17:22 -0500)]
Wrapfs: implement ->getattr
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 19 Nov 2013 22:21:31 +0000 (17:21 -0500)]
Wrapfs: use file_inode helper
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 19 Nov 2013 22:20:31 +0000 (17:20 -0500)]
Wrapfs: call filemap_write_and_wait in ->flush
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 19 Nov 2013 22:19:31 +0000 (17:19 -0500)]
Wrapfs: handle new VFS API with delegation support
For now, wrapfs isn't supporting NFS delegations.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 19 Nov 2013 22:18:31 +0000 (17:18 -0500)]
VFS: export vfs_path_lookup
In 3.12, this useful function was unexported: wrapfs needs a way to lookup
relative to a struct path and use a proper vfsmount, unlike lookup_one_len.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Tue, 19 Nov 2013 22:17:31 +0000 (17:17 -0500)]
Wrapfs: ->readdir op now ->iterate
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 5 Jun 2013 05:36:58 +0000 (01:36 -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>
Erez Zadok [Wed, 5 Jun 2013 05:36:58 +0000 (01:36 -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>
Erez Zadok [Wed, 5 Jun 2013 03:19:32 +0000 (23:19 -0400)]
Wrapfs: declare MODULE_ALIAS_FS
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 5 Jun 2013 03:19:32 +0000 (23:19 -0400)]
Wrapfs: don't use FS_REVAL_DOT in fs_flags
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 5 Jun 2013 03:19:31 +0000 (23:19 -0400)]
Wrapfs: remove dependency on now-defunct CONFIG_EXPERIMENTAL
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 5 Jun 2013 03:19:31 +0000 (23:19 -0400)]
Wrapfs: dentry_open() no longer does mntput/dput
We need to grab a reference on the path before dentry_open, and drop it
after.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 5 Jun 2013 03:19:30 +0000 (23:19 -0400)]
Wrapfs: no need to call mnt_want_write any longer
Apparently this is now being done by the VFS.
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 5 Jun 2013 03:19:30 +0000 (23:19 -0400)]
Wrapfs: remove VM_CAN_NONLINEAR flag use in ->mmap
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 5 Jun 2013 03:19:29 +0000 (23:19 -0400)]
Wrapfs: ->lookup takes flags not a nameidata
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 5 Jun 2013 03:19:29 +0000 (23:19 -0400)]
Wrapfs: ->create no longer takes a nameidata, only a flag
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 5 Jun 2013 03:19:29 +0000 (23:19 -0400)]
Wrapfs: ->d_revalidate now takes namei flags, not nameidata
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 5 Jun 2013 03:19:28 +0000 (23:19 -0400)]
Wrapfs: struct nameidata no longer has an open-intent data
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 5 Jun 2013 03:19:28 +0000 (23:19 -0400)]
Wrapfs: dentry_open now takes a struct path
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 5 Jun 2013 03:19:27 +0000 (23:19 -0400)]
Wrapfs: use vm_munmap in ->mmap
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 5 Jun 2013 03:19:27 +0000 (23:19 -0400)]
Wrapfs: use clear_inode in evict_inode
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Erez Zadok [Wed, 5 Jun 2013 03:19:26 +0000 (23:19 -0400)]
Wrapfs: use d_make_root
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
Erez Zadok [Tue, 5 Jan 2010 01:45:06 +0000 (20:45 -0500)]
Wrapfs: Maintainers
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
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>
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>
Greg Kroah-Hartman [Sun, 11 Sep 2016 08:00:18 +0000 (10:00 +0200)]
Linux 3.14.79
Andrea Arcangeli [Fri, 26 Feb 2016 23:19:28 +0000 (15:19 -0800)]
mm: thp: fix SMP race condition between THP page fault and MADV_DONTNEED
commit
ad33bb04b2a6cee6c1f99fabb15cddbf93ff0433 upstream.
pmd_trans_unstable()/pmd_none_or_trans_huge_or_clear_bad() were
introduced to locklessy (but atomically) detect when a pmd is a regular
(stable) pmd or when the pmd is unstable and can infinitely transition
from pmd_none() and pmd_trans_huge() from under us, while only holding
the mmap_sem for reading (for writing not).
While holding the mmap_sem only for reading, MADV_DONTNEED can run from
under us and so before we can assume the pmd to be a regular stable pmd
we need to compare it against pmd_none() and pmd_trans_huge() in an
atomic way, with pmd_trans_unstable(). The old pmd_trans_huge() left a
tiny window for a race.
Useful applications are unlikely to notice the difference as doing
MADV_DONTNEED concurrently with a page fault would lead to undefined
behavior.
[js] 3.12 backport: no pmd_devmap in 3.12 yet.
[akpm@linux-foundation.org: tidy up comment grammar/layout]
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Reported-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Willy Tarreau [Sat, 27 Aug 2016 09:31:35 +0000 (11:31 +0200)]
fix d_walk()/non-delayed __d_free() race
I checked Jari's explanation below and found that v3.14.77 and v3.12.62
are missing the same fix as 3.10. In fact Al's original commit
3d56c25
("fix d_walk()/non-delayed __d_free() race") used to mention to check
this __d_materialise_dentry() function in the Cc: stable line, but this
got lost during the backports.
Normally all of our 3 kernels need to apply the following patch that
Ben correctly put in 3.16 and 3.2. I'm fixing the backport in 3.10.103
right now.
On Mon, Aug 22, 2016 at 04:56:57PM +0300, Jari Ruusu wrote:
> This patch for 3.10 branch appears to be missing one important
>
> + dentry->d_flags |= DCACHE_RCUACCESS;
>
> in fs/dcache.c __d_materialise_dentry() function. When Ben Hutchings
> backported Al Viro's original fix to stable branches that he maintains,
> he added that one additional line to both 3.2 and 3.16 branches. Please
> consider including that additional one line fix for 3.10 stable branch
> also.
>
>
> Ben Hutchings said this on his 3.2.82-rc1 patch:
> [bwh: Backported to 3.2:
> - Adjust context
> - Also set the flag in __d_materialise_dentry())]
>
> http://marc.info/?l=linux-kernel&m=
147117565612275&w=2
>
>
> Ben Hutchings said this on his 3.16.37-rc1 patch:
> [bwh: Backported to 3.16:
> - Adjust context
> - Also set the flag in __d_materialise_dentry())]
>
> http://marc.info/?l=linux-kernel&m=
147117433412006&w=2
>
>
> Also mentioned by Sasha Levin on 3.18 and 4.1 commits:
> Cc: stable@vger.kernel.org # v3.2+ (and watch out for __d_materialise_dentry())
>
> http://marc.info/?l=linux-stable-commits&m=
146648034410827&w=2
> http://marc.info/?l=linux-stable-commits&m=
146647471009771&w=2
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Martin Schwidefsky [Mon, 25 Apr 2016 15:54:28 +0000 (17:54 +0200)]
s390/sclp_ctl: fix potential information leak with /dev/sclp
commit
532c34b5fbf1687df63b3fcd5b2846312ac943c6 upstream.
The sclp_ctl_ioctl_sccb function uses two copy_from_user calls to
retrieve the sclp request from user space. The first copy_from_user
fetches the length of the request which is stored in the first two
bytes of the request. The second copy_from_user gets the complete
sclp request, but this copies the length field a second time.
A malicious user may have changed the length in the meantime.
Reported-by: Pengfei Wang <wpengfeinudt@gmail.com>
Reviewed-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Juerg Haefliger <juerg.haefliger@hpe.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Kangjie Lu [Thu, 2 Jun 2016 08:11:20 +0000 (04:11 -0400)]
rds: fix an infoleak in rds_inc_info_copy
commit
4116def2337991b39919f3b448326e21c40e0dbb upstream.
The last field "flags" of object "minfo" is not initialized.
Copying this object out may leak kernel stack data.
Assign 0 to it to avoid leak.
Signed-off-by: Kangjie Lu <kjlu@gatech.edu>
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Juerg Haefliger <juerg.haefliger@hpe.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ian Abbott [Wed, 7 Sep 2016 14:33:12 +0000 (15:33 +0100)]
staging: comedi: ni_mio_common: fix wrong insn_write handler
commit
5ca05345c56cb979e1a25ab6146437002f95cac8 upstream.
For counter subdevices, the `s->insn_write` handler is being set to the
wrong function, `ni_tio_insn_read()`. It should be
`ni_tio_insn_write()`.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reported-by: Éric Piel <piel@delmic.com>
Fixes: 10f74377eec3 ("staging: comedi: ni_tio: make ni_tio_winsn() a proper comedi (*insn_write)")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Theodore Ts'o [Mon, 1 Aug 2016 04:51:02 +0000 (00:51 -0400)]
ext4: validate that metadata blocks do not overlap superblock
commit
829fa70dddadf9dd041d62b82cd7cea63943899d upstream.
A number of fuzzing failures seem to be caused by allocation bitmaps
or other metadata blocks being pointed at the superblock.
This can cause kernel BUG or WARNings once the superblock is
overwritten, so validate the group descriptor blocks to make sure this
doesn't happen.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Alexander Shiyan [Wed, 26 Feb 2014 02:41:14 +0000 (23:41 -0300)]
stb6100: fix buffer length check in stb6100_write_reg_range()
commit
7e6bd12fb77b0067df13fb3ba3fadbdff2945396 upstream.
We are checking sizeof() the wrong variable!
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tomer Barletz [Sun, 2 Aug 2015 09:08:57 +0000 (02:08 -0700)]
ALSA: oxygen: Fix logical-not-parentheses warning
commit
8ec7cfce3762299ae289c384e281b2f4010ae231 upstream.
This fixes the following warning, that is seen with gcc 5.1:
warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses].
Signed-off-by: Tomer Barletz <barletz@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
James C Boyd [Wed, 27 May 2015 22:09:06 +0000 (17:09 -0500)]
HID: hid-input: Add parentheses to quell gcc warning
commit
09a5c34e8d6b05663ec4c3d22b1fbd9fec89aaf9 upstream.
GCC reports a -Wlogical-not-parentheses warning here; therefore
add parentheses to shut it up and to express our intent more.
Signed-off-by: James C Boyd <jcboyd.dev@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tim Gardner [Fri, 30 Oct 2015 18:22:58 +0000 (12:22 -0600)]
be2iscsi: Fix bogus WARN_ON length check
commit
dd29dae00d39186890a5eaa2fe4ad8768bfd41a9 upstream.
drivers/scsi/be2iscsi/be_main.c: In function 'be_sgl_create_contiguous':
drivers/scsi/be2iscsi/be_main.c:3187:18: warning: logical not is only applied to the left hand side of comparison [-Wlogical-not-parentheses]
WARN_ON(!length > 0);
gcc version 5.2.1
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Cc: Jayamohan Kallickal <jayamohan.kallickal@avagotech.com>
Cc: Minh Tran <minh.tran@avagotech.com>
Cc: John Soni Jose <sony.john-n@avagotech.com>
Cc: "James E.J. Bottomley" <JBottomley@odin.com>
Reported-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Manoj Kumar <manoj@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Fri, 9 Sep 2016 11:32:42 +0000 (13:32 +0200)]
Revert "can: fix handling of unmodifiable configuration options fix"
This reverts commit
6f8f768a3586b6fbd50e249e7fe4f964a6994685 which was
bce271f255dae8335dc4d2ee2c4531e09cc67f5a upstream.
It was applied incorrectly, and isn't needed for 3.14-stable.
Reported-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
Greg Kroah-Hartman [Wed, 7 Sep 2016 06:30:12 +0000 (08:30 +0200)]
Linux 3.14.78
projects / wrapfs-3.14.y.git / log