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* kernel/acct.c: fix the acct->needcheck check in check_free_space()Oleg Nesterov2018-01-101-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 4d9570158b6260f449e317a5f9ed030c2504a615 upstream. As Tsukada explains, the time_is_before_jiffies(acct->needcheck) check is very wrong, we need time_is_after_jiffies() to make sys_acct() work. Ignoring the overflows, the code should "goto out" if needcheck > jiffies, while currently it checks "needcheck < jiffies" and thus in the likely case check_free_space() does nothing until jiffies overflow. In particular this means that sys_acct() is simply broken, acct_on() sets acct->needcheck = jiffies and expects that check_free_space() should set acct->active = 1 after the free-space check, but this won't happen if jiffies increments in between. This was broken by commit 32dc73086015 ("get rid of timer in kern/acct.c") in 2011, then another (correct) commit 795a2f22a8ea ("acct() should honour the limits from the very beginning") made the problem more visible. Link: http://lkml.kernel.org/r/20171213133940.GA6554@redhat.com Fixes: 32dc73086015 ("get rid of timer in kern/acct.c") Reported-by: TSUKADA Koutaro <tsukada@ascade.co.jp> Suggested-by: TSUKADA Koutaro <tsukada@ascade.co.jp> Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* acct: check FMODE_CAN_WRITEAl Viro2015-04-111-1/+1
| | | | | | it's not calling ->write() directly anymore. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* new fs_pin killing logicsAl Viro2015-01-251-47/+34
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* get rid of the second argument of acct_kill()Al Viro2015-01-251-10/+7
| | | | | | | | Replace the old ns->bacct only with NULL and only if it still points to acct. And assign the new value to it *before* calling acct_kill() in acct_on(). That way we don't need to pass the new acct to acct_kill(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* take count and rcu_head out of fs_pinAl Viro2015-01-251-6/+8
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* pull bumping refcount into ->kill()Al Viro2015-01-251-0/+6
| | | | | | | there will be one more change of ->kill() calling conventions; this isn't final. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* kill pin_put()Al Viro2015-01-251-4/+10
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* acct: eliminate compile warningYing Xue2014-10-091-5/+9
| | | | | | | | | | | | If ACCT_VERSION is not defined to 3, below warning appears: CC kernel/acct.o kernel/acct.c: In function `do_acct_process': kernel/acct.c:475:24: warning: unused variable `ns' [-Wunused-variable] [akpm@linux-foundation.org: retain the local for code size improvements Signed-off-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* kernel/acct.c: fix coding style warnings and errorsIonut Alexa2014-08-071-12/+16
| | | | | | Signed-off-by: Ionut Alexa <ionut.m.alexa@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* death to mnt_pinnedAl Viro2014-08-071-5/+19
| | | | | | | | | | | | | | | | | | | | | Rather than playing silly buggers with vfsmount refcounts, just have acct_on() ask fs/namespace.c for internal clone of file->f_path.mnt and replace it with said clone. Then attach the pin to original vfsmount. Voila - the clone will be alive until the file gets closed, making sure that underlying superblock remains active, etc., and we can drop the original vfsmount, so that it's not kept busy. If the file lives until the final mntput of the original vfsmount, we'll notice that there's an fs_pin (one in bsd_acct_struct that holds that file) and mnt_pin_kill() will take it out. Since ->kill() is synchronous, we won't proceed past that point until these files are closed (and private clones of our vfsmount are gone), so we get the same ordering warranties we used to get. mnt_pin()/mnt_unpin()/->mnt_pinned is gone now, and good riddance - it never became usable outside of kernel/acct.c (and racy wrt umount even there). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* take fs_pin stuff to fs/*Al Viro2014-08-071-95/+32
| | | | | | | | | | | | | | | Add a new field to fs_pin - kill(pin). That's what umount and r/o remount will be calling for all pins attached to vfsmount and superblock resp. Called after bumping the refcount, so it won't go away under us. Dropping the refcount is responsibility of the instance. All generic stuff moved to fs/fs_pin.c; the next step will rip all the knowledge of kernel/acct.c from fs/super.c and fs/namespace.c. After that - death to mnt_pin(); it was intended to be usable as generic mechanism for code that wants to attach objects to vfsmount, so that they would not make the sucker busy and would get killed on umount. Never got it right; it remained acct.c-specific all along. Now it's very close to being killable. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* start carving bsd_acct_struct upAl Viro2014-08-071-19/+23
| | | | | | | | pull generic parts into struct fs_pin. Eventually we want those to replace mnt_pin()/mnt_unpin() mess; that stuff will move to fs/*. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* acct: move mnt_pin() upwards.Al Viro2014-08-071-2/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* make acct_kill() wait for file closing.Al Viro2014-08-071-3/+17
| | | | | | | Do actual closing of file via schedule_work(). And use __fput_sync() there. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* acct: get rid of acct_lock for acct->countAl Viro2014-08-071-33/+52
| | | | | | | | | * make acct->count atomic and acct freeing - rcu-delayed. * instead of grabbing acct_lock around the places where we take a reference, do that under rcu_read_lock() with atomic_long_inc_not_zero(). * have the new acct locked before making ns->bacct point to it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* acct: get rid of acct_listAl Viro2014-08-071-80/+55
| | | | | | | | Put these suckers on per-vfsmount and per-superblock lists instead. Note: right now it's still acct_lock for everything, but that's going to change. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* acct: simplify check_free_space()Al Viro2014-08-071-39/+11
| | | | | | | | | a) file can't be NULL b) file can't be changed under us c) all writes are serialized by acct->lock; no need to mess with spinlock there. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* acct: new lifetime rulesAl Viro2014-08-071-106/+114
| | | | | | | | | | | | | | | | | | | | Do not reuse bsd_acct_struct after closing the damn thing. Structure lifetime is controlled by refcount now. We also have a mutex in there, held over closing and writing (the file is O_APPEND, so we are not losing any concurrency). As the result, we do not need to bother with get_file()/fput() on log write anymore. Moreover, do_acct_process() only needs acct itself; file and pidns are picked from it. Killed instances are distinguished by having NULL ->ns. Refcount is protected by acct_lock; anybody taking the mutex needs to grab a reference first. The things will get a lot simpler in the next commits - this is just the minimal chunk switching to the new lifetime rules. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* acct: serialize acct_on()Al Viro2014-08-071-0/+4
| | | | | | brute-force - on a global mutex that isn't nested into anything. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* acct() should honour the limits from the very beginningAl Viro2014-08-071-2/+2
| | | | | | We need to check free space on the first write to freshly opened log. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* split the slow path in acct_process() offAl Viro2014-08-071-22/+28
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* separate namespace-independent parts of filling acct_tAl Viro2014-08-071-47/+51
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* acct: switch to __kernel_write()Al Viro2014-08-071-19/+12
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* acct: encode_comp_t(0) is 0, fortunately...Al Viro2014-08-071-3/+0
| | | | | | | | | | | | | | | | | | | | | | There was an amusing bogosity in ac_rw calculation - it tried to do encode_comp_t(encode_comp_t(0) / 1024). Seeing that comp_t is a 3-bit exponent + 13-bit mantissa... it's a good thing that 0 is represented by all-bits-clear. The history of that one is interesting - it was introduced in 2.1.68pre1, when acct.c had been reworked and moved to separate file. Two months later (2.1.86) somebody has noticed that the sucker won't compile - there was no task_struct::io_usage. At which point the ac_io calculation had changed from encode_comp_t(current->io_usage) to encode_comp_t(0) and the bug in the next line (absolutely real back then, had it ever managed to compile) become a harmless bogosity. Looks like nobody has ever noticed until now. Anyway, let's bury that idiocy now that it got noticed. 17 years is long enough... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* sched: Make task->start_time nanoseconds basedThomas Gleixner2014-07-231-7/+3
| | | | | | | Simplify the timespec to nsec/usec conversions. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: John Stultz <john.stultz@linaro.org>
* acct: Use ktime_get_ts()Thomas Gleixner2014-06-121-1/+1
| | | | | | | | | | | do_posix_clock_monotonic_gettime() is a leftover from the initial posix timer implementation which maps to ktime_get_ts() Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: John Stultz <john.stultz@linaro.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20140611234606.764810535@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
* ipc, kernel: clear whitespacePaul McQuade2014-06-061-2/+2
| | | | | | | | trailing whitespace Signed-off-by: Paul McQuade <paulmcquad@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ipc, kernel: use Linux headersPaul McQuade2014-06-061-1/+1
| | | | | | | | | Use #include <linux/uaccess.h> instead of <asm/uaccess.h> Use #include <linux/types.h> instead of <asm/types.h> Signed-off-by: Paul McQuade <paulmcquad@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fs: Fix hang with BSD accounting on frozen filesystemJan Kara2013-05-041-1/+6
| | | | | | | | | | | | | | | When BSD process accounting is enabled and logs information to a filesystem which gets frozen, system easily becomes unusable because each attempt to account process information blocks. Thus e.g. every task gets blocked in exit. It seems better to drop accounting information (which can already happen when filesystem is running out of space) instead of locking system up. So we just skip the write if the filesystem is frozen. Reported-by: Nikola Ciprich <nikola.ciprich@linuxbox.cz> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* lift sb_start_write() out of ->write()Al Viro2013-04-091-0/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'for-linus' of ↵Linus Torvalds2013-02-261-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull vfs pile (part one) from Al Viro: "Assorted stuff - cleaning namei.c up a bit, fixing ->d_name/->d_parent locking violations, etc. The most visible changes here are death of FS_REVAL_DOT (replaced with "has ->d_weak_revalidate()") and a new helper getting from struct file to inode. Some bits of preparation to xattr method interface changes. Misc patches by various people sent this cycle *and* ocfs2 fixes from several cycles ago that should've been upstream right then. PS: the next vfs pile will be xattr stuff." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (46 commits) saner proc_get_inode() calling conventions proc: avoid extra pde_put() in proc_fill_super() fs: change return values from -EACCES to -EPERM fs/exec.c: make bprm_mm_init() static ocfs2/dlm: use GFP_ATOMIC inside a spin_lock ocfs2: fix possible use-after-free with AIO ocfs2: Fix oops in ocfs2_fast_symlink_readpage() code path get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero target: writev() on single-element vector is pointless export kernel_write(), convert open-coded instances fs: encode_fh: return FILEID_INVALID if invalid fid_type kill f_vfsmnt vfs: kill FS_REVAL_DOT by adding a d_weak_revalidate dentry op nfsd: handle vfs_getattr errors in acl protocol switch vfs_getattr() to struct path default SET_PERSONALITY() in linux/elf.h ceph: prepopulate inodes only when request is aborted d_hash_and_lookup(): export, switch open-coded instances 9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate() 9p: split dropping the acls from v9fs_set_create_acl() ...
| * new helper: file_inode(file)Al Viro2013-02-221-1/+1
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | cputime: Use accessors to read task cputime statsFrederic Weisbecker2013-01-271-2/+4
|/ | | | | | | | | | | | | | | | | | | This is in preparation for the full dynticks feature. While remotely reading the cputime of a task running in a full dynticks CPU, we'll need to do some extra-computation. This way we can account the time it spent tickless in userspace since its last cputime snapshot. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Li Zhong <zhong@linux.vnet.ibm.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de>
* vfs: make path_openat take a struct filename pointerJeff Layton2012-10-121-3/+3
| | | | | | | | | | | | | ...and fix up the callers. For do_file_open_root, just declare a struct filename on the stack and fill out the .name field. For do_filp_open, make it also take a struct filename pointer, and fix up its callers to call it appropriately. For filp_open, add a variant that takes a struct filename pointer and turn filp_open into a wrapper around it. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: define struct filename and have getname() return itJeff Layton2012-10-121-2/+2
| | | | | | | | | | | | | | | | | | | | | | getname() is intended to copy pathname strings from userspace into a kernel buffer. The result is just a string in kernel space. It would however be quite helpful to be able to attach some ancillary info to the string. For instance, we could attach some audit-related info to reduce the amount of audit-related processing needed. When auditing is enabled, we could also call getname() on the string more than once and not need to recopy it from userspace. This patchset converts the getname()/putname() interfaces to return a struct instead of a string. For now, the struct just tracks the string in kernel space and the original userland pointer for it. Later, we'll add other information to the struct as it becomes convenient. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* acct: constify the name arg to acct_onJeff Layton2012-10-121-1/+1
| | | | | Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* userns: Convert bsd process accounting to use kuid and kgid where appropriateEric W. Biederman2012-09-181-2/+2
| | | | | | | | | | | | | BSD process accounting conveniently passes the file the accounting records will be written into to do_acct_process. The file credentials captured the user namespace of the opener of the file. Use the file credentials to format the uid and the gid of the current process into the user namespace of the user that started the bsd process accounting. Cc: Pavel Emelyanov <xemul@openvz.org> Reviewed-by: Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
* Merge branch 'for-linus2' of ↵Linus Torvalds2012-01-081-31/+11
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs * 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (165 commits) reiserfs: Properly display mount options in /proc/mounts vfs: prevent remount read-only if pending removes vfs: count unlinked inodes vfs: protect remounting superblock read-only vfs: keep list of mounts for each superblock vfs: switch ->show_options() to struct dentry * vfs: switch ->show_path() to struct dentry * vfs: switch ->show_devname() to struct dentry * vfs: switch ->show_stats to struct dentry * switch security_path_chmod() to struct path * vfs: prefer ->dentry->d_sb to ->mnt->mnt_sb vfs: trim includes a bit switch mnt_namespace ->root to struct mount vfs: take /proc/*/mounts and friends to fs/proc_namespace.c vfs: opencode mntget() mnt_set_mountpoint() vfs: spread struct mount - remaining argument of next_mnt() vfs: move fsnotify junk to struct mount vfs: move mnt_devname vfs: move mnt_list to struct mount vfs: switch pnode.h macros to struct mount * ...
| * vfs: prefer ->dentry->d_sb to ->mnt->mnt_sbAl Viro2012-01-061-1/+1
| | | | | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * get rid of timer in kern/acct.cAl Viro2012-01-031-30/+10
| | | | | | | | | | | | ... and clean it up a bit, while we are at it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | [S390] cputime: add sparse checking and cleanupMartin Schwidefsky2011-12-151-2/+2
|/ | | | | | | | Make cputime_t and cputime64_t nocast to enable sparse checking to detect incorrect use of cputime. Drop the cputime macros for simple scalar operations. The conversion macros are still needed. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* pass a struct path to vfs_statfsChristoph Hellwig2010-08-091-1/+1
| | | | | | | | | | | | | | | | We'll need the path to implement the flags field for statvfs support. We do have it available in all callers except: - ecryptfs_statfs. This one doesn't actually need vfs_statfs but just needs to do a caller to the lower filesystem statfs method. - sys_ustat. Add a non-exported statfs_by_dentry helper for it which doesn't won't be able to fill out the flags field later on. In addition rename the helpers for statfs vs fstatfs to do_*statfs instead of the misleading vfs prefix. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'next' into for-linusJames Morris2010-05-181-15/+5
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| * security: remove dead hook acctEric Paris2010-04-121-15/+5
| | | | | | | | | | | | | | Unused hook. Remove. Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: James Morris <jmorris@namei.org>
* | bsdacct: use del_timer_sync() in acct_exit_ns()Vitaliy Gusev2010-05-111-8/+9
|/ | | | | | | | | | acct_exit_ns --> acct_file_reopen deletes timer without check timer execution on other CPUs. So acct_timeout() can change an unmapped memory. Signed-off-by: Vitaliy Gusev <vgusev@openvz.org> Cc: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* copy_signal() cleanup: kill taskstats_tgid_init() and acct_init_pacct()Veaceslav Falico2010-03-121-10/+0
| | | | | | | | | | | | Kill unused functions taskstats_tgid_init() and acct_init_pacct() because we don't use them anywhere after using kmem_cache_zalloc() in copy_signal(). Signed-off-by: Veaceslav Falico <vfalico@redhat.com> Cc: Roland McGrath <roland@redhat.com> Cc: Oleg Nesterov <oleg@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* bsdacct: fix uid/gid misreportingAlexey Dobriyan2009-12-151-1/+2
| | | | | | | | | | | | | | | | | | | | commit d8e180dcd5bbbab9cd3ff2e779efcf70692ef541 "bsdacct: switch credentials for writing to the accounting file" introduced credential switching during final acct data collecting. However, uid/gid pair continued to be collected from current which became credentials of who created acct file, not who exits. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=14676 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Reported-by: Juho K. Juopperi <jkj@kapsi.fi> Acked-by: Serge Hallyn <serue@us.ibm.com> Acked-by: David Howells <dhowells@redhat.com> Reviewed-by: Michal Schmidt <mschmidt@redhat.com> Cc: James Morris <jmorris@namei.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* bsdacct: switch credentials for writing to the accounting fileMichal Schmidt2009-08-241-1/+7
| | | | | | | | | | | | | | | | | | | | | When process accounting is enabled, every exiting process writes a log to the account file. In addition, every once in a while one of the exiting processes checks whether there's enough free space for the log. SELinux policy may or may not allow the exiting process to stat the fs. So unsuspecting processes start generating AVC denials just because someone enabled process accounting. For these filesystem operations, the exiting process's credentials should be temporarily switched to that of the process which enabled accounting, because it's really that process which wanted to have the accounting information logged. Signed-off-by: Michal Schmidt <mschmidt@redhat.com> Acked-by: David Howells <dhowells@redhat.com> Acked-by: Serge Hallyn <serue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Morris <jmorris@namei.org>
* bsdacct: fix access to invalid filp in acct_on()Renaud Lottiaux2009-06-301-2/+4
| | | | | | | | | | | | | | The file opened in acct_on and freshly stored in the ns->bacct struct can be closed in acct_file_reopen by a concurrent call after we release acct_lock and before we call mntput(file->f_path.mnt). Record file->f_path.mnt in a local variable and use this variable only. Signed-off-by: Renaud Lottiaux <renaud.lottiaux@kerlabs.com> Signed-off-by: Louis Rilling <louis.rilling@kerlabs.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [CVE-2009-0029] System call wrappers part 04Heiko Carstens2009-01-141-1/+1
| | | | Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
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