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Each afs dentry is tagged with the version that the parent directory was at
last time it was validated and, currently, if this differs, the directory
is scanned and the dentry is refreshed.
However, this leads to an excessive amount of revalidation on directories
that get modified on the client without conflict with another client. We
know there's no conflict because the parent directory's data version number
got incremented by exactly 1 on any create, mkdir, unlink, etc., therefore
we can trust the current state of the unaffected dentries when we perform a
local directory modification.
Optimise by keeping track of the last version of the parent directory that
was changed outside of the client in the parent directory's vnode and using
that to validate the dentries rather than the current version.
Signed-off-by: David Howells <dhowells@redhat.com>
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Rearrange the AFSFetchStatus to inode attribute mapping code in a number of
ways:
(1) Use an XDR structure rather than a series of incremented pointer
accesses when decoding an AFSFetchStatus object. This allows
out-of-order decode.
(2) Don't store the if_version value but rather just check it and abort if
it's not something we can handle.
(3) Store the owner and group in the status record as raw values rather
than converting them to kuid/kgid. Do that when they're mapped into
i_uid/i_gid.
(4) Validate the type and abort code up front and abort if they're wrong.
(5) Split the inode attribute setting out into its own function from the
XDR decode of an AFSFetchStatus object. This allows it to be called
from elsewhere too.
(6) Differentiate changes to data from changes to metadata.
(7) Use the split-out attribute mapping function from afs_iget().
Signed-off-by: David Howells <dhowells@redhat.com>
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Store the data version number indicated by an FS.FetchData op into the read
request structure so that it's accessible by the page reader.
Signed-off-by: David Howells <dhowells@redhat.com>
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We no longer parse symlinks when we get the inode to determine if this
symlink is actually a mountpoint as we detect that by examining the mode
instead (symlinks are always 0777 and mountpoints 0644).
Access the cache after mapping the status so that we don't have to manually
set the inode size now.
Note that this may need adjusting if the disconnected operation is
implemented as the file metadata may have to be obtained from the cache.
Signed-off-by: David Howells <dhowells@redhat.com>
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Introduce a proc file that displays a bunch of statistics for the AFS
filesystem in the current network namespace.
Signed-off-by: David Howells <dhowells@redhat.com>
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Dump an AFS FileStatus record that is detected as invalid.
Signed-off-by: David Howells <dhowells@redhat.com>
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Implement @cell substitution handling such that if @cell is seen as a name
in a dynamic root mount, then the name of the root cell for that network
namespace will be substituted for @cell during lookup.
The substitution of @cell for the current net namespace is set by writing
the cell name to /proc/fs/afs/rootcell. The value can be obtained by
reading the file.
For example:
# mount -t afs none /kafs -o dyn
# echo grand.central.org >/proc/fs/afs/rootcell
# ls /kafs/@cell
archive/ cvs/ doc/ local/ project/ service/ software/ user/ www/
# cat /proc/fs/afs/rootcell
grand.central.org
Signed-off-by: David Howells <dhowells@redhat.com>
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Implement the AFS feature by which @sys at the end of a pathname component
may be substituted for one of a list of values, typically naming the
operating system. Up to 16 alternatives may be specified and these are
tried in turn until one works. Each network namespace has[*] a separate
independent list.
Upon creation of a new network namespace, the list of values is
initialised[*] to a single OpenAFS-compatible string representing arch type
plus "_linux26". For example, on x86_64, the sysname is "amd64_linux26".
[*] Or will, once network namespace support is finalised in kAFS.
The list may be set by:
# for i in foo bar linux-x86_64; do echo $i; done >/proc/fs/afs/sysname
for which separate writes to the same fd are amalgamated and applied on
close. The LF character may be used as a separator to specify multiple
items in the same write() call.
The list may be cleared by:
# echo >/proc/fs/afs/sysname
and read by:
# cat /proc/fs/afs/sysname
foo
bar
linux-x86_64
Signed-off-by: David Howells <dhowells@redhat.com>
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When afs_lookup() is called, prospectively look up the next 50 uncached
fids also from that same directory and cache the results, rather than just
looking up the one file requested.
This allows us to use the FS.InlineBulkStatus RPC op to increase efficiency
by fetching up to 50 file statuses at a time.
Signed-off-by: David Howells <dhowells@redhat.com>
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AFS cells that are added or set as the workstation cell through /proc are
pinned against removal by setting the AFS_CELL_FL_NO_GC flag on them and
taking a ref. The ref should be only taken if the flag wasn't already set.
Fix this by making it conditional.
Without this an assertion failure will occur during module removal
indicating that the refcount is too elevated.
Signed-off-by: David Howells <dhowells@redhat.com>
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Fix warnings raised by checker, including:
(*) Warnings raised by unequal comparison for the purposes of sorting,
where the endianness doesn't matter:
fs/afs/addr_list.c:246:21: warning: restricted __be16 degrades to integer
fs/afs/addr_list.c:246:30: warning: restricted __be16 degrades to integer
fs/afs/addr_list.c:248:21: warning: restricted __be32 degrades to integer
fs/afs/addr_list.c:248:49: warning: restricted __be32 degrades to integer
fs/afs/addr_list.c:283:21: warning: restricted __be16 degrades to integer
fs/afs/addr_list.c:283:30: warning: restricted __be16 degrades to integer
(*) afs_set_cb_interest() is not actually used and can be removed.
(*) afs_cell_gc_delay() should be provided with a sysctl.
(*) afs_cell_destroy() needs to use rcu_access_pointer() to read
cell->vl_addrs.
(*) afs_init_fs_cursor() should be static.
(*) struct afs_vnode::permit_cache needs to be marked __rcu.
(*) afs_server_rcu() needs to use rcu_access_pointer().
(*) afs_destroy_server() should use rcu_access_pointer() on
server->addresses as the server object is no longer accessible.
(*) afs_find_server() casts __be16/__be32 values to int in order to
directly compare them for the purpose of finding a match in a list,
but is should also annotate the cast with __force to avoid checker
warnings.
(*) afs_check_permit() accesses vnode->permit_cache outside of the RCU
readlock, though it doesn't then access the value; the extraneous
access is deleted.
False positives:
(*) Conditional locking around the code in xdr_decode_AFSFetchStatus. This
can be dealt with in a separate patch.
fs/afs/fsclient.c:148:9: warning: context imbalance in 'xdr_decode_AFSFetchStatus' - different lock contexts for basic block
(*) Incorrect handling of seq-retry lock context balance:
fs/afs/inode.c:455:38: warning: context imbalance in 'afs_getattr' - different
lock contexts for basic block
fs/afs/server.c:52:17: warning: context imbalance in 'afs_find_server' - different lock contexts for basic block
fs/afs/server.c:128:17: warning: context imbalance in 'afs_find_server_by_uuid' - different lock contexts for basic block
Errors:
(*) afs_lookup_cell_rcu() needs to break out of the seq-retry loop, not go
round again if it successfully found the workstation cell.
(*) Fix UUID decode in afs_deliver_cb_probe_uuid().
(*) afs_cache_permit() has a missing rcu_read_unlock() before one of the
jumps to the someone_else_changed_it label. Move the unlock to after
the label.
(*) afs_vl_get_addrs_u() is using ntohl() rather than htonl() when
encoding to XDR.
(*) afs_deliver_yfsvl_get_endpoints() is using htonl() rather than ntohl()
when decoding from XDR.
Signed-off-by: David Howells <dhowells@redhat.com>
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Remove the const marking from the actor function pointer in the dir_context
struct. The const prevents the structure from being used as part of a
kmalloc'd object as it makes the compiler require that the actor member be
set at object initialisation time (or not at all), incuring something like
the following error if you try and set it later:
fs/afs/dir.c:556:20: error: assignment of read-only member 'actor'
Marking the member const like this adds very little in the way of sanity
checking as the type checking system is likely to provide sufficient - and
if not, the kernel is very likely to oops repeatably in this case.
Fixes: ac6614b76478 ("[readdir] constify ->actor")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
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Commit 0619f0f5e36f ("selinux: wrap selinuxfs state") triggers a BUG
when SELinux is runtime-disabled (i.e. systemd or equivalent disables
SELinux before initial policy load via /sys/fs/selinux/disable based on
/etc/selinux/config SELINUX=disabled).
This does not manifest if SELinux is disabled via kernel command line
argument or if SELinux is enabled (permissive or enforcing).
Before:
SELinux: Disabled at runtime.
BUG: Dentry 000000006d77e5c7{i=17,n=null} still in use (1) [unmount of selinuxfs selinuxfs]
After:
SELinux: Disabled at runtime.
Fixes: 0619f0f5e36f ("selinux: wrap selinuxfs state")
Reported-by: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Reported-by: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit 3c8ba0d61d04 ("kernel.h: Retain constant expression output for
max()/min()") rewrote our min/max macros to be very clever, but in the
meantime resurrected a variable name shadow issue that we had had
previously fixed in commit 589a9785ee3a ("min/max: remove sparse
warnings when they're nested").
That commit talks about the sparse warnings that this shadowing causes,
which we ignored as just a minor annoyance. But it turns out that the
sparse warning is the least of our problems. We actually have a real
bug due to the shadowing through the interaction with "min_not_zero()",
which ends up doing
min(__x, __y)
internally, and then the new declaration of "__x" and "__y" as new
variables in __cmp_once() results in a complete mess of an expression,
and "min_not_zero()" doesn't work at all.
For some odd reason, this only ever caused (reported) problems on s390,
even though it is a generic issue and most of the (obviously successful)
testing of the problematic commit had happened on other architectures.
Quoting Sebastian Ott:
"What happened is that the bio build by the partition detection code
was attempted to be split by the block layer because the block queue
had a max_sector setting of 0. blk_queue_max_hw_sectors uses
min_not_zero."
So re-introduce the use of __UNIQUE_ID() to make sure that the min/max
macros do not have these kinds of clashes.
[ That said, __UNIQUE_ID() itself has several issues that make it less
than wonderful.
In particular, the "uniqueness" has a fallback on the line number,
which means that it's not actually unique in more complex cases if you
don't build with gcc or clang (which have working unique counters that
aren't tied to line numbers).
That historical broken fallback also means that we have that pointless
"prefix" argument that doesn't actually make much sense _except_ for
the known-broken case. Oh well. ]
Fixes: 3c8ba0d61d04 ("kernel.h: Retain constant expression output for max()/min()")
Reported-and-tested-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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missed it in "kill struct filename.separate" several years ago.
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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memory-barriers.txt has been updated with the following requirement.
"When using writel(), a prior wmb() is not needed to guarantee that the
cache coherent memory writes have completed before writing to the MMIO
region."
Current writeX() and iowriteX() implementations on alpha are not
satisfying this requirement as the barrier is after the register write.
Move mb() in writeX() and iowriteX() functions to guarantee that HW
observes memory changes before performing register operations.
Signed-off-by: Sinan Kaya <okaya@codeaurora.org>
Reported-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Matt Turner <mattst88@gmail.com>
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Implement the CPU vulnerabilty show functions for meltdown, spectre_v1
and spectre_v2 on Alpha.
Tests on XP1000 (EV67/667MHz) and ES45 (EV68CB/1.25GHz) show them
to be vulnerable to Meltdown and Spectre V1. In the case of
Meltdown I saw a 1 to 2% success rate in reading bytes on the
XP1000 and 50 to 60% success rate on the ES45. (This compares to
99.97% success reported for Intel CPUs.) Report EV6 and later
CPUs as vulnerable.
Tests on PWS600au (EV56/600MHz) for Spectre V1 attack were
unsuccessful (though I did not try particularly hard) so mark EV4
through to EV56 as not vulnerable.
Signed-off-by: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Matt Turner <mattst88@gmail.com>
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The RTC core is always calling rtc_valid_tm after the read_time callback.
It is not necessary to call it just before returning from the callback.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
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The .set_mmss and .setmmss64 ops are only called when the RTC is not
providing an implementation for the .set_time callback.
On alpha, .set_time is provided so .set_mmss64 is never called. Remove the
unused code.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Matt Turner <mattst88@gmail.com>
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Joe Perches noted that we have a few source files that for some
inexplicable reason (read: I'm too lazy to even go look at the history)
are marked executable:
drivers/gpu/drm/amd/amdgpu/vce_v4_0.c
drivers/net/ethernet/cadence/macb_ptp.c
A simple git command line to show executable C/asm/header files is this:
git ls-files -s '*.[chsS]' | grep '^100755'
and then you can fix them up with scripting by just feeding that output
into:
| cut -f2 | xargs chmod -x
and commit it.
Which is exactly what this commit does.
Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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MAINTAINERS is out of date for leaking_addresses.pl. There is now a tree on
kernel.org for development of this script. We have a second maintainer now,
thanks Tycho. Development of this scripts was started on kernel-hardening
mailing list so let's keep it there.
Update maintainer details; Add mailing list, kernel.org hosted tree, and second
maintainer.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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Sometimes files may be created by using output from printk. As the scan
traverses the directory tree we should parse each path name and check if
it is leaking an address.
Add check for leaking address on each path name.
Suggested-by: Tycho Andersen <tycho@tycho.ws>
Acked-by: Tycho Andersen <tycho@tycho.ws>
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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Currently sub routine may_leak_address() is checking regex against Perl
special variable $_ which is _fortunately_ being set correctly in a loop
before this sub routine is called. We already have declared a variable
to hold this value '$line' we should use it.
Use $line in regex match instead of implicit $_
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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We have git now, we don't need a version number. This was originally
added because leaking_addresses.pl shamelessly (and mindlessly) copied
checkpatch.pl
Remove version number from script.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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The pointers listed in /proc/1/syscall are user pointers, and negative
syscall args will show up like kernel addresses.
For example
/proc/31808/syscall: 0 0x3 0x55b107a38180 0x2000 0xffffffffffffffb0 \
0x55b107a302d0 0x55b107a38180 0x7fffa313b8e8 0x7ff098560d11
Skip parsing /proc/1/syscall
Suggested-by: Tycho Andersen <tycho@tycho.ws>
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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When the system is idle it is likely that most files under /proc/PID
will be identical for various processes. Scanning _all_ the PIDs under
/proc is unnecessary and implies that we are thoroughly scanning /proc.
This is _not_ the case because there may be ways userspace can trigger
creation of /proc files that leak addresses but were not present during
a scan. For these two reasons we should exclude all PID directories
under /proc except '1/'
Exclude all /proc/PID except /proc/1.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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Currently we are repeatedly calling `uname -m`. This is causing the
script to take a long time to run (more than 10 seconds to parse
/proc/kallsyms). We can use Perl state variables to cache the result of
the first call to `uname -m`. With this change in place the script
scans the whole kernel in under a minute.
Cache machine architecture in state variable.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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Currently script has multiple configuration arrays. This is confusing,
evident by the fact that a bunch of the entries are in the wrong place.
We can simplify the code by just having a single array for absolute
paths to skip and a single array for file names to skip wherever they
appear in the scanned directory tree. There are also currently multiple
subroutines to handle the different arrays, we can reduce these to a
single subroutine also.
Simplify the path skipping code.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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Currently script parses binary files. Since we are scanning for
readable kernel addresses there is no need to parse binary files. We
can use Perl to check if file is binary and skip parsing it if so.
Do not parse binary files.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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Currently script only supports x86_64 and ppc64. It would be nice to be
able to scan 32-bit machines also. We can add support for 32-bit
architectures by modifying how we check for false positives, taking
advantage of the page offset used by the kernel, and using the correct
regular expression.
Support for 32-bit machines is enabled by the observation that the kernel
addresses on 32-bit machines are larger [in value] than the page offset.
We can use this to filter false positives when scanning the kernel for
leaking addresses.
Programmatic determination of the running architecture is not
immediately obvious (current 32-bit machines return various strings from
`uname -m`). We therefore provide a flag to enable scanning of 32-bit
kernels. Also we can check the kernel config file for the offset and if
not found default to 0xc0000000. A command line option to parse in the
page offset is also provided. We do automatically detect architecture
if running on ix86.
Add support for 32-bit kernels. Add a command line option for page
offset.
Suggested-by: Kaiwan N Billimoria <kaiwan.billimoria@gmail.com>
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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Currently there is duplicate code when checking the architecture type.
We can remove the duplication by implementing a wrapper function
is_arch().
Implement and use wrapper function is_arch().
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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Currently script uses Perl to get the machine architecture. This can be
erroneous since Perl uses the architecture of the machine that Perl was
compiled on not the architecture of the running machine. We should use
the systems `uname` command instead.
Use `uname -m` instead of Perl to get the machine architecture.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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Currently script only supports 4 page table levels because of the way
the kernel address regular expression is crafted. We can do better than
this. Using previously added support for kernel configuration options we
can get the number of page table levels defined by
CONFIG_PGTABLE_LEVELS. Using this value a correct regular expression can
be crafted. This only supports 5 page tables on x86_64.
Add support for 5 page table levels on x86_64.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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Features that rely on the ability to get kernel configuration options
are ready to be implemented in script. In preparation for this we can
add support for kernel config options as a separate patch to ease
review.
Add support for locating and parsing kernel configuration file.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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Currently script checks only first and last address in the vsyscall
memory range. We can do better than this. When checking for false
positives against $match, we can convert $match to a hexadecimal value
then check if it lies within the range of vsyscall addresses.
Check whole range of vsyscall addresses when checking for false
positive.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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A number of the command line options to script are dependant on the
option --input-raw being set. If we indent these options it makes
explicit this dependency.
Indent options dependant on --input-raw.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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Currently help output includes command examples. These were cute when we
first started development of this script but are unnecessary.
Remove command examples.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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leaking_addresses.pl can be run with kptr_restrict==0 now, we don't need
the comment about setting kptr_restrict any more.
Remove comment suggesting setting kptr_restrict.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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Currently code uses a check against an undefined variable because the
variable is a sub routine name and is not evaluated.
Evaluate subroutine; add parenthesis to sub routine name.
Signed-off-by: Tobin C. Harding <me@tobin.cc>
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Commit 58eb5b670747 ("pstore: fix crypto dependencies") fixed up the crypto
dependencies but missed the case when no compression is selected.
With CONFIG_PSTORE=y, CONFIG_PSTORE_COMPRESS=n and CONFIG_CRYPTO=m we see
the following link error:
fs/pstore/platform.o: In function `pstore_register':
(.text+0x1b1): undefined reference to `crypto_has_alg'
(.text+0x205): undefined reference to `crypto_alloc_base'
fs/pstore/platform.o: In function `pstore_unregister':
(.text+0x3b0): undefined reference to `crypto_destroy_tfm'
Fix this by checking at compile-time if CONFIG_PSTORE_COMPRESS is enabled.
Fixes: 58eb5b670747 ("pstore: fix crypto dependencies")
Signed-off-by: Tobias Regnery <tobias.regnery@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kees Cook <keescook@chromium.org>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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lookup_slow() sans locking/unlocking the directory
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Make the function static to avoid a
warning: no previous prototype for ‘vmx_enable_tdp’
Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Switch simpad's CF implementation to use the gpiod APIs. The inverted
detection is handled using gpiolib's native inversion abilities.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Convert shannon to use the generic CF socket support.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Convert nanoengine to use the generic CF socket support.
Makefile fix from Arnd Bergmann <arnd@arndb.de>.
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
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Maintain a catalogue of allocated cookies so that cookie collisions can be
handled properly. For the moment, this just involves printing a warning
and returning a NULL cookie to the caller of fscache_acquire_cookie(), but
in future it might make sense to wait for the old cookie to finish being
cleaned up.
This requires the cookie key to be stored attached to the cookie so that we
still have the key available if the netfs relinquishes the cookie. This is
done by an earlier patch.
The catalogue also renders redundant fscache_netfs_list (used for checking
for duplicates), so that can be removed.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Anna Schumaker <anna.schumaker@netapp.com>
Tested-by: Steve Dickson <steved@redhat.com>
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Pass the object size in to fscache_acquire_cookie() and
fscache_write_page() rather than the netfs providing a callback by which it
can be received. This makes it easier to update the size of the object
when a new page is written that extends the object.
The current object size is also passed by fscache to the check_aux
function, obviating the need to store it in the aux data.
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Anna Schumaker <anna.schumaker@netapp.com>
Tested-by: Steve Dickson <steved@redhat.com>
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I got "oom_reaper: unable to reap pid:" messages when the victim thread
was blocked inside free_pgtables() (which occurred after returning from
unmap_vmas() and setting MMF_OOM_SKIP). We don't need to complain when
exit_mmap() already set MMF_OOM_SKIP.
Killed process 7558 (a.out) total-vm:4176kB, anon-rss:84kB, file-rss:0kB, shmem-rss:0kB
oom_reaper: unable to reap pid:7558 (a.out)
a.out D13272 7558 6931 0x00100084
Call Trace:
schedule+0x2d/0x80
rwsem_down_write_failed+0x2bb/0x440
call_rwsem_down_write_failed+0x13/0x20
down_write+0x49/0x60
unlink_file_vma+0x28/0x50
free_pgtables+0x36/0x100
exit_mmap+0xbb/0x180
mmput+0x50/0x110
copy_process.part.41+0xb61/0x1fe0
_do_fork+0xe6/0x560
do_syscall_64+0x74/0x230
entry_SYSCALL_64_after_hwframe+0x42/0xb7
Link: http://lkml.kernel.org/r/201803221946.DHG65638.VFJHFtOSQLOMOF@I-love.SAKURA.ne.jp
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: David Rientjes <rientjes@google.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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David Howells
Stephen Smalley
Linus Torvalds
Al Viro
Sinan Kaya
Michael Cree
Alexandre Belloni
Tobin C. Harding
Tobias Regnery
Peng Hao
Russell King
Tetsuo Handa