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* [PATCH] kill PF_DEAD flagOleg Nesterov2006-09-294-15/+12
| | | | | | | | | | After the previous change (->flags & PF_DEAD) <=> (->state == EXIT_DEAD), we don't need PF_DEAD any longer. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] set EXIT_DEAD state in do_exit(), not in schedule()Oleg Nesterov2006-09-292-3/+1
| | | | | | | | | | | | | | | | | | | schedule() checks PF_DEAD on every context switch and sets ->state = EXIT_DEAD to ensure that the exiting task will be deactivated. Note that this EXIT_DEAD is in fact a "random" value, we can use any bit except normal TASK_XXX values. It is better to set this state in do_exit() along with PF_DEAD flag and remove that check in schedule(). We are safe wrt concurrent try_to_wake_up() (for example ptrace, tkill), it can not change task's ->state: the 'state' argument of try_to_wake_up() can't have EXIT_DEAD bit. And in case when try_to_wake_up() sees a stale value of ->state == TASK_RUNNING it will do nothing. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] lockdep: core, add enable/disable_irq_irqsave/irqrestore() APIsArjan van de Ven2006-09-292-3/+19
| | | | | | | | | | | | | | | Introduce the disable_irq_nosync_lockdep_irqsave() and enable_irq_lockdep_irqrestore() APIs. These are needed for NE2000; basically NE2000 calls disable_irq and enable_irq as locking against the IRQ handler, but both in cases where interrupts are on and off. This means that lockdep needs to track the old state of the virtual irq flags on disable_irq, and restore these at enable_irq time. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Ban register_filesystem(NULL);Alexey Dobriyan2006-09-291-2/+0
| | | | | | | | Everyone passes valid pointer there. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] 9p: fix leak on error pathAlexey Dobriyan2006-09-291-2/+4
| | | | | | | | | | | If register_filesystem() fails mux workqueue must be killed. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Eric Van Hensbergen <ericvh@gmail.com> Cc: Ron Minnich <rminnich@lanl.gov> Cc: Latchesar Ionkov <lucho@ionkov.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] cramfs: make cramfs_uncompress_exit() return voidAlexey Dobriyan2006-09-292-3/+2
| | | | | | | | | | It always returns 0, so relying on it is useless. The only caller isn't checking return value. In general, un-, de-, -free functions should return void. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] freevxfs: fix leak on error pathAlexey Dobriyan2006-09-291-3/+8
| | | | | | | | | If register_filesystem() fails, vxfs_inode cache must be destroyed. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] cramfs: rewrite init_cramfs_fs()Alexey Dobriyan2006-09-291-2/+9
| | | | | | | | Two lines -- two bugs. :-( Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Pass a lock expression to __cond_lock, like __acquire and __releaseJosh Triplett2006-09-292-7/+7
| | | | | | | | | | | Currently, __acquire and __release take a lock expression, but __cond_lock takes only a condition, not the lock acquired if the expression evaluates to true. Change __cond_lock to accept a lock expression, and change all the callers to pass in a lock expression. Signed-off-by: Josh Triplett <josh@freedesktop.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] doc: fix kernel-parameters 'quiet'Randy Dunlap2006-09-291-1/+1
| | | | | | | | | Fix "quiet" parameter doc. No trailing '=' sign, no value after it. And it disables "most" kernel messages, not all of them. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix mem_write() return valueFrederik Deweerdt2006-09-291-1/+2
| | | | | | | | | | | | At the beginning of the routine, "copied" is set to 0, but it is no good because in lines 805 and 812 it is set to other values. Finally, the routine returns as if it copied 12 (=ENOMEM) bytes less than it actually did. Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com> Acked-by: Eric Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] block_dev.c mutex_lock_nested() fixJason Baron2006-09-291-1/+1
| | | | | | | | | | | In the case below we are locking the whole disk not a partition. This change simply brings the code in line with the piece above where when we are the 'first' opener, and we are a partition. Signed-off-by: Jason Baron <jbaron@redhat.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Replace _spin_trylock with spin_trylock in the IRQ variants to use ↵Josh Triplett2006-09-291-2/+2
| | | | | | | | | | | | | | __cond_lock spin_trylock_irq and spin_trylock_irqsave use _spin_trylock, which does not use the __cond_lock wrapper annotation and thus does not affect the lock context; change them to use spin_trylock instead, which does use __cond_lock. Signed-off-by: Josh Triplett <josh@freedesktop.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Make spinlock/rwlock annotations more accurate by using parameters, ↵Josh Triplett2006-09-291-25/+25
| | | | | | | | | | | | | | | | | | | not types The lock annotations used on spinlocks and rwlocks currently use __{acquires,releases}(spinlock_t) and __{acquires,releases}(rwlock_t), respectively. This loses the information of which lock actually got acquired or released, and assumes a different type for the parameter of __acquires and __releases than the rest of the kernel. While the current implementations of __acquires and __releases throw away their argument, this will not always remain the case. Change this to use the lock parameter instead, to preserve this information and increase consistency in usage of __acquires and __releases. Signed-off-by: Josh Triplett <josh@freedesktop.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] windfarm_smu_sat.c: simplify around i2c_add_driver()Alexey Dobriyan2006-09-291-6/+1
| | | | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] tty: Fix bits and note more bits to fixAlan Cox2006-09-291-8/+11
| | | | | | | | | | | | | | | If your driver implements "break on" and "break off" this ensures you won't get multiple overlapping requests or requests in parallel. If your driver has its own break handling then its still your problem as the driver author. Break is also now serialized against writes from user space properly but no new guarantees are made driver level about writes from the line discipline itself (eg flow control or echo) Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] solaris emulation: incorrect tty lockingAlan Cox2006-09-292-0/+4
| | | | | | | | | [akpm@osdl.org: build fix] [akpm@osdl.org: warning fix] Signed-off-by: Alan Cox <alan@redhat.com> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] docbook: fix segfault in docproc.cHenrik Kretzschmar2006-09-291-0/+1
| | | | | | | | | | | Adds a missing exit, if the file that should be parsed couldn't be opened. Without it crashes with a segfault, cause the filedescriptor is accessed even if the file could not be opened. Signed-off-by: Henrik Kretzschmar <henne@nachtwindheim.de> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] sys_get_robust_list(): don't take tasklist_lockOleg Nesterov2006-09-291-3/+3
| | | | | | | | | | use rcu locks for find_task_by_pid(). Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] futex_find_get_task(): don't take tasklist_lockOleg Nesterov2006-09-291-2/+2
| | | | | | | | | | | | | It is ok to do find_task_by_pid() + get_task_struct() under rcu_read_lock(), we cand drop tasklist_lock. Note that testing of ->exit_state is racy with or without tasklist anyway. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] autofs4: pending flag not cleared on mount failIan Kent2006-09-291-3/+3
| | | | | | | | | | During testing I've found that the mount pending flag can be left set at exit from autofs4_lookup after a failed mount request. This shouldn't be allowed to happen and causes incorrect error returns. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] autofs4: autofs4_follow_link false negative fixIan Kent2006-09-291-1/+1
| | | | | | | | | | | The check for an empty directory in the autofs4_follow_link method fails occassionally due to old dentrys. We had the same problem autofs4_revalidate ages ago. I thought we wouldn't need this in autofs4_follow_link, silly me. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] copy_process: cosmetic ->ioprio tweakOleg Nesterov2006-09-291-6/+3
| | | | | | | | | | | | | | | | | | | | | copy_process: // holds tasklist_lock + ->siglock /* * inherit ioprio */ p->ioprio = current->ioprio; Why? ->ioprio was already copied in dup_task_struct(). I guess this is needed to ensure that the child can't escape sys_ioprio_set(IOPRIO_WHO_{PGRP,USER}), yes? In that case we don't need ->siglock held, and the comment should be updated. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] reparent_to_init(): use has_rt_policy()Oleg Nesterov2006-09-291-3/+1
| | | | | | | | | | | | Remove open-coded has_rt_policy(), no changes in kernel/exit.o Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] sched_setscheduler: fix? policy checksOleg Nesterov2006-09-291-20/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I am not sure this patch is correct: I can't understand what the current code does, and I don't know what it was supposed to do. The comment says: * can't change policy, except between SCHED_NORMAL * and SCHED_BATCH: The code: if (((policy != SCHED_NORMAL && p->policy != SCHED_BATCH) && (policy != SCHED_BATCH && p->policy != SCHED_NORMAL)) && But this is equivalent to: if ( (is_rt_policy(policy) && has_rt_policy(p)) && which means something different. We can't _decrease_ the current ->rt_priority with such a check (if rlim[RLIMIT_RTPRIO] == 0). Probably, it was supposed to be: if ( !(policy == SCHED_NORMAL && p->policy == SCHED_BATCH) && !(policy == SCHED_BATCH && p->policy == SCHED_NORMAL) this matches the comment, but strange: it doesn't allow to _drop_ the realtime priority when rlim[RLIMIT_RTPRIO] == 0. I think the right check would be: /* can't set/change rt policy */ if (is_rt_policy(policy) && policy != p->policy && !rlim_rtprio) return -EPERM; Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] introduce is_rt_policy() helperOleg Nesterov2006-09-292-5/+4
| | | | | | | | | | | | Imho, makes the code a bit easier to read. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] do_sched_setscheduler(): don't take tasklist_lockOleg Nesterov2006-09-291-10/+18
| | | | | | | | | | | | | Use rcu locks instead. sched_setscheduler() now takes ->siglock before reading ->signal->rlim[]. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] kill extraneous printk in kernel_restart()Cal Peake2006-09-291-1/+0
| | | | | | | | | Get rid of an extraneous printk in kernel_restart(). Signed-off-by: Cal Peake <cp@absolutedigital.net> Acked-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix ____call_usermodehelper errors being silently ignoredBjörn Steinbrink2006-09-291-1/+11
| | | | | | | | | | | | | | If ____call_usermodehelper fails, we're not interested in the child process' exit value, but the real error, so let's stop wait_for_helper from overwriting it in that case. Issue discovered by Benedikt Böhm while working on a Linux-VServer usermode helper. Signed-off-by: Björn Steinbrink <B.Steinbrink@gmx.de> Cc: Rusty Russell <rusty@rustcorp.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Return better error codes if drivers/char/raw.c module init failsRolf Eike Beer2006-09-291-8/+11
| | | | | | | | | | | | Currently this module just returns 1 if anything on module init fails. Store the error code of the different function calls and return their error on problems. Signed-off-by: Rolf Eike Beer <eike-kernel@sf-tec.de> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> [ Fixed to not unregister twice on error ] Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Use decimal for PTRACE_ATTACH and PTRACE_DETACH.Roland McGrath2006-09-291-2/+2
| | | | | | | | | | | | | | | | | | It is sure confusing that linux/ptrace.h has: #define PTRACE_SINGLESTEP 9 #define PTRACE_ATTACH 0x10 #define PTRACE_DETACH 0x11 #define PTRACE_SYSCALL 24 All the low-numbered constants are in decimal, but the last two in hex. It sure makes it likely that someone will look at this and think that 9, 10, 11 are used, and that 16 and 17 are not used. How about we use the same notation for all the numbers [0,24] in the same short list? Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] cdev documentationJonathan Corbet2006-09-292-0/+64
| | | | | | | | | | Add some documentation comments for the cdev interface. Signed-off-by: Jonathan Corbet <corbet@lwn.net> Cc: Rolf Eike Beer <eike-kernel@sf-tec.de> Acked-by: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] tty: make termios_sem a mutexArjan van de Ven2006-09-293-20/+22
| | | | | | | | [akpm@osdl.org: fix] Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] exit: fix crash caseAlan Cox2006-09-291-1/+2
| | | | | | | | | If we are going to BUG() not panic() here then we should cover the case of the BUG being compiled out Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] tty: stop the tty vanishing under procfs accessAlan Cox2006-09-291-0/+3
| | | | | | Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] tty: lock ticogwinszAlan Cox2006-09-291-7/+10
| | | | | | | | | | Now we lock the set ioctl its trivial to lock the get one so the data copied is consistent. At the moment we have the BKL here but this removes the need for it and is a step in the right direction Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] tty: trivial kzalloc opportunityAlan Cox2006-09-291-7/+1
| | | | | | Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] kexec warning fixRoland McGrath2006-09-291-2/+4
| | | | | | | | | This fixes a couple of compiler warnings, and adds paranoia checks as well. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] simplify update_times (avoid jiffies/jiffies_64 aliasing problem)Atsushi Nemoto2006-09-2938-60/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pass ticks to do_timer() and update_times(), and adjust x86_64 and s390 timer interrupt handler with this change. Currently update_times() calculates ticks by "jiffies - wall_jiffies", but callers of do_timer() should know how many ticks to update. Passing ticks get rid of this redundant calculation. Also there are another redundancy pointed out by Martin Schwidefsky. This cleanup make a barrier added by 5aee405c662ca644980c184774277fc6d0769a84 needless. So this patch removes it. As a bonus, this cleanup make wall_jiffies can be removed easily, since now wall_jiffies is always synced with jiffies. (This patch does not really remove wall_jiffies. It would be another cleanup patch) Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: john stultz <johnstul@us.ibm.com> Cc: Andi Kleen <ak@muc.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Acked-by: Russell King <rmk@arm.linux.org.uk> Cc: Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Acked-by: David Howells <dhowells@redhat.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Hirokazu Takata <takata.hirokazu@renesas.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Cc: Richard Curnow <rc@rc0.org.uk> Cc: William Lee Irwin III <wli@holomorphy.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Miles Bader <uclinux-v850@lsi.nec.co.jp> Cc: Chris Zankel <chris@zankel.net> Acked-by: "Luck, Tony" <tony.luck@intel.com> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] __dequeue_signal() cleanupRoland McGrath2006-09-291-4/+2
| | | | | | | | | | | This tightens up __dequeue_signal a little. It also avoids doing recalc_sigpending twice in a row, instead doing it once in dequeue_signal. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] has_stopped_jobs() cleanupRoland McGrath2006-09-291-11/+0
| | | | | | | | | | | This check has been obsolete since the introduction of TASK_TRACED. Now TASK_STOPPED always means job control stop. Signed-off-by: Roland McGrath <roland@redhat.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] I/O Error attempting to read last partial block of a file in an ↵Joel & Rebecca VanderZee2006-09-291-24/+24
| | | | | | | | | | | | | | | | | | | | | ISO9660 file system There was an I/O error that prevented reading the last partial block of large files in an ISO9660 filesystem. The error was generated when a file comprised more than one section and had a size that was not an exact multiple of the filesystem block size. This patch removes the check (and failure) for reading into the last partial block (and possibly beyond) for multiple-section files. It worked in my testing to prevent reading beyond the end of the section; my first patch just incremented the sect_size block count for a partial block and continued doing the check. But there is a commment in the source code about reading beyond the end of the file to fill a page cache. Failing to access beyond the section would prevent reading beyond the end of the file. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] posix-timers: Fix the flags handling in posix_cpu_nsleep()Toyo Abe2006-09-291-26/+58
| | | | | | | | | | | | | | | | | | When a posix_cpu_nsleep() sleep is interrupted by a signal more than twice, it incorrectly reports the sleep time remaining to the user. Because posix_cpu_nsleep() doesn't report back to the user when it's called from restart function due to the wrong flags handling. This patch, which applies after previous one, moves the nanosleep() function from posix_cpu_nsleep() to do_cpu_nanosleep() and cleans up the flags handling appropriately. Signed-off-by: Toyo Abe <toyoa@mvista.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] posix-timers: Fix clock_nanosleep() doesn't return the remaining ↵Toyo Abe2006-09-296-15/+81
| | | | | | | | | | | | | | | | | | | | | | | time in compatibility mode The clock_nanosleep() function does not return the time remaining when the sleep is interrupted by a signal. This patch creates a new call out, compat_clock_nanosleep_restart(), which handles returning the remaining time after a sleep is interrupted. This patch revives clock_nanosleep_restart(). It is now accessed via the new call out. The compat_clock_nanosleep_restart() is used for compatibility access. Since this is implemented in compatibility mode the normal path is virtually unaffected - no real performance impact. Signed-off-by: Toyo Abe <toyoa@mvista.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] update Documentation/kernel-parameters.txtjens m. noedler2006-09-291-0/+7
| | | | | | Signed-off-by: jens m. noedler <noedler@web.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] dquot: add proper locking when using current->signal->ttyJan Kara2006-09-291-0/+5
| | | | | | | | | Dquot passes the tty to tty_write_message without locking Signed-off-by: Jan Kara <jack@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix memory leak in vc_resize/vc_allocateCatalin Marinas2006-09-291-1/+2
| | | | | | | | | | | | | | | | | | | | | | | Memory leaks can happen in the vc_resize() function in drivers/char/vt.c because of the vc->vc_screenbuf variable overriding in vc_allocate(). The kmemleak reported trace is as follows: <__kmalloc> <vc_resize> <fbcon_init> <visual_init> <vc_allocate> <con_open> <tty_open> <chrdev_open> This patch no longer allocates a screen buffer in vc_allocate() if it was already allocated by vc_resize(). Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] elf_fdpic_core_dump: don't take tasklist_lockOleg Nesterov2006-09-291-4/+3
| | | | | | | | | | | | | do_each_thread() is rcu-safe, and all tasks which use this ->mm must sleep in wait_for_completion(&mm->core_done) at this point, so we can use RCU locks. Also, remove unneeded INIT_LIST_HEAD(new) before list_add(new, head). Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Acked-By: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] elf_core_dump: don't take tasklist_lockOleg Nesterov2006-09-291-4/+3
| | | | | | | | | | | | do_each_thread() is rcu-safe, and all tasks which use this ->mm must sleep in wait_for_completion(&mm->core_done) at this point, so we can use RCU locks. Also, remove unneeded INIT_LIST_HEAD(new) before list_add(new, head). Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix serial/amba-pl011.c console KconfigPeter Korsgaard2006-09-291-1/+1
| | | | | | | | Fix the Kconfig entry for console on AMBA PL011 to match the code. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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