linux-toradex.git/arch/alpha, branch imx-android-r12 Linux kernel for Apalis and Colibri modules futex: Sanitize futex ops argument types 2011-08-03T22:40:50+00:00 Michel Lespinasse walken@google.com 2011-03-11T02:50:58+00:00 8118a7f45cc160547fb7b9c7fcc71a2601d56649 Change futex_atomic_op_inuser and futex_atomic_cmpxchg_inatomic prototypes to use u32 types for the futex as this is the data type the futex core code uses all over the place. Signed-off-by: Michel Lespinasse <walken@google.com> Cc: Darren Hart <darren@dvhart.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: David Howells <dhowells@redhat.com> Cc: Tony Luck <tony.luck@intel.com> Cc: Michal Simek <monstr@monstr.eu> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Chris Metcalf <cmetcalf@tilera.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <20110311025058.GD26122@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Change futex_atomic_op_inuser and futex_atomic_cmpxchg_inatomic
prototypes to use u32 types for the futex as this is the data type the
futex core code uses all over the place.

Signed-off-by: Michel Lespinasse <walken@google.com>
Cc: Darren Hart <darren@dvhart.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: David Howells <dhowells@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <20110311025058.GD26122@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
futex: Sanitize cmpxchg_futex_value_locked API 2011-08-03T22:40:50+00:00 Michel Lespinasse walken@google.com 2011-03-11T02:48:51+00:00 fe094e6fbfc7745d5240d8672cc7d0be4ebc21ee The cmpxchg_futex_value_locked API was funny in that it returned either the original, user-exposed futex value OR an error code such as -EFAULT. This was confusing at best, and could be a source of livelocks in places that retry the cmpxchg_futex_value_locked after trying to fix the issue by running fault_in_user_writeable(). This change makes the cmpxchg_futex_value_locked API more similar to the get_futex_value_locked one, returning an error code and updating the original value through a reference argument. Signed-off-by: Michel Lespinasse <walken@google.com> Acked-by: Chris Metcalf <cmetcalf@tilera.com> [tile] Acked-by: Tony Luck <tony.luck@intel.com> [ia64] Acked-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Michal Simek <monstr@monstr.eu> [microblaze] Acked-by: David Howells <dhowells@redhat.com> [frv] Cc: Darren Hart <darren@dvhart.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: "James E.J. Bottomley" <jejb@parisc-linux.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Linus Torvalds <torvalds@linux-foundation.org> LKML-Reference: <20110311024851.GC26122@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
The cmpxchg_futex_value_locked API was funny in that it returned either
the original, user-exposed futex value OR an error code such as -EFAULT.
This was confusing at best, and could be a source of livelocks in places
that retry the cmpxchg_futex_value_locked after trying to fix the issue
by running fault_in_user_writeable().

This change makes the cmpxchg_futex_value_locked API more similar to the
get_futex_value_locked one, returning an error code and updating the
original value through a reference argument.

Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>  [tile]
Acked-by: Tony Luck <tony.luck@intel.com>  [ia64]
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Michal Simek <monstr@monstr.eu>  [microblaze]
Acked-by: David Howells <dhowells@redhat.com> [frv]
Cc: Darren Hart <darren@dvhart.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <20110311024851.GC26122@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
alpha: fix compile error from IRQ clean up 2011-03-09T22:03:00+00:00 Matt Turner mattst88@gmail.com 2011-03-09T16:15:13+00:00 fbf855d7c709e991ff5445d4bac432a08b942baa Signed-off-by: Matt Turner <mattst88@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Signed-off-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
alpha: Enable GENERIC_HARDIRQS_NO_DEPRECATED 2011-03-02T19:58:00+00:00 Thomas Gleixner tglx@linutronix.de 2011-02-06T14:33:02+00:00 10e53f5834cd3b9a14e1c944a3e7ad34ee368834 All interrupt chips are converted. Mark it clean. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Matt Turner <mattst88@gmail.com> 
All interrupt chips are converted. Mark it clean.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Matt Turner <mattst88@gmail.com>
alpha: irq: Convert affinity to use irq_data 2011-03-02T19:57:59+00:00 Thomas Gleixner tglx@linutronix.de 2011-02-06T14:33:00+00:00 0b534cf3e86c3fec7703173f45fcb9290b77667b affinity is moving to irq_data. Fix it up. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Matt Turner <mattst88@gmail.com> 
affinity is moving to irq_data. Fix it up.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Matt Turner <mattst88@gmail.com>
alpha: irq: Remove pointless irq status manipulation 2011-03-02T19:57:59+00:00 Thomas Gleixner tglx@linutronix.de 2011-02-06T14:32:58+00:00 eb1e17fb9956eb3156f33cdcd880306102212661 The irq descriptors are initialized IRQ_DISABLED in the generic code. No need to fiddle with them. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Matt Turner <mattst88@gmail.com> 
The irq descriptors are initialized IRQ_DISABLED in the generic
code. No need to fiddle with them.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Matt Turner <mattst88@gmail.com>
alpha: titan: Convert irq_chip functions 2011-03-02T19:57:59+00:00 Thomas Gleixner tglx@linutronix.de 2011-02-06T14:32:56+00:00 628150cae3d83136416a384b939d8a6fad52499e Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Matt Turner <mattst88@gmail.com> 
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Matt Turner <mattst88@gmail.com>
alpha: takara: Convert irq_chip functions 2011-03-02T19:57:58+00:00 Thomas Gleixner tglx@linutronix.de 2011-02-06T14:32:53+00:00 b148c6146147ad9985e08ce518f032d8b01d8b30 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Matt Turner <mattst88@gmail.com> 
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Matt Turner <mattst88@gmail.com>
alpha: sable: Convert irq_chip functions 2011-03-02T19:57:58+00:00 Thomas Gleixner tglx@linutronix.de 2011-02-06T14:32:51+00:00 c90c10c8bf9624c95ba02228fb58e7bebe68fb1b Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Matt Turner <mattst88@gmail.com> 
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Matt Turner <mattst88@gmail.com>
alpha: rx164: Convert irq_chip functions 2011-03-02T19:57:58+00:00 Thomas Gleixner tglx@linutronix.de 2011-02-06T14:32:49+00:00 2758a8af18ca4ea7148927f3a58ddcb1bf163d76 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Matt Turner <mattst88@gmail.com> 
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Matt Turner <mattst88@gmail.com>