linux-toradex.git/include/linux/rwsem.h, branch Colibri_T30_LinuxImageV2.1Beta2_20140206

atomic: use

2011-07-26T23:49:47+00:00

This allows us to move duplicated code in 
(atomic_inc_not_zero() for now) to 

Signed-off-by: Arun Sharma 
Reviewed-by: Eric Dumazet 
Cc: Ingo Molnar 
Cc: David Miller 
Cc: Eric Dumazet 
Acked-by: Mike Frysinger 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

rw_semaphore: remove up/down_read_non_owner

2011-07-21T00:47:47+00:00

Now that the last users is gone these can be removed.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Al Viro

rwsem: Remove redundant asmregparm annotation

2011-01-27T11:30:40+00:00

Peter Zijlstra pointed out, that the only user of asmregparm (x86) is
compiling the kernel already with -mregparm=3. So the annotation of
the rwsem functions is redundant. Remove it.

Signed-off-by: Thomas Gleixner 
Cc: Peter Zijlstra 
Cc: David Howells 
Cc: Benjamin Herrenschmidt 
Cc: Matt Turner 
Cc: Tony Luck 
Cc: Heiko Carstens 
Cc: Paul Mundt 
Cc: David Miller 
Cc: Chris Zankel 
LKML-Reference: 
Signed-off-by: Thomas Gleixner

rwsem: Move duplicate function prototypes to linux/rwsem.h

2011-01-27T11:30:39+00:00

All architecture specific rwsem headers carry the same function
prototypes. Just x86 adds asmregparm, which is an empty define on all
other architectures. S390 has a stale rwsem_downgrade_write()
prototype.

Remove the duplicates and add the prototypes to linux/rwsem.h

Signed-off-by: Thomas Gleixner 
Cc: Peter Zijlstra 
Cc: David Howells 
Cc: Benjamin Herrenschmidt 
Cc: Richard Henderson 
Acked-by: Tony Luck 
Acked-by: Heiko Carstens 
Cc: Paul Mundt 
Acked-by: David Miller 
Cc: Chris Zankel 
LKML-Reference: <20110126195833.970840140@linutronix.de>
Signed-off-by: Thomas Gleixner

rwsem: Unify the duplicate rwsem_is_locked() inlines

2011-01-27T11:30:39+00:00

Instead of having the same implementation in each architecture, move
it to linux/rwsem.h and remove the duplicates. It's unlikely that an
arch will ever implement something different, but we can deal with
that when it happens.

Signed-off-by: Thomas Gleixner 
Cc: Peter Zijlstra 
Cc: David Howells 
Cc: Benjamin Herrenschmidt 
Cc: Matt Turner 
Acked-by: Tony Luck 
Acked-by: Heiko Carstens 
Cc: Paul Mundt 
Acked-by: David Miller 
Cc: Chris Zankel 
LKML-Reference: <20110126195833.876773757@linutronix.de>
Signed-off-by: Thomas Gleixner

rwsem: Move duplicate init macros and functions to linux/rwsem.h

2011-01-27T11:30:39+00:00

The rwsem initializers and related macros and functions are mostly the
same. Some of them lack the lockdep initializer, but having it in
place does not matter for architectures which do not support lockdep.

powerpc, sparc, x86: No functional change

sh, s390: Removes the duplicate init_rwsem (inline and #define)

alpha, ia64, xtensa: Use the lockdep capable init function in
       	     	     lib/rwsem.c which is just uninlining the init
       	     	     function for the LOCKDEP=n case

Signed-off-by: Thomas Gleixner 
Cc: Peter Zijlstra 
Cc: David Howells 
Cc: Benjamin Herrenschmidt 
Cc: Matt Turner 
Acked-by: Tony Luck 
Acked-by: Heiko Carstens 
Cc: Paul Mundt 
Acked-by: David Miller 
Cc: Chris Zankel 
LKML-Reference: <20110126195833.771812729@linutronix.de>

rwsem: Move duplicate struct rwsem declaration to linux/rwsem.h

2011-01-27T11:30:39+00:00

The difference between these declarations is the data type of the
count member and the lack of lockdep in some architectures/

long is equivivalent to signed long and the #ifdef guarded dep_map
member does not hurt anyone.

Signed-off-by: Thomas Gleixner 
Cc: Peter Zijlstra 
Cc: David Howells 
Cc: Benjamin Herrenschmidt 
Cc: Matt Turner 
Acked-by: Tony Luck 
Acked-by: Heiko Carstens 
Cc: Paul Mundt 
Acked-by: David Miller 
Cc: Chris Zankel 
LKML-Reference: <20110126195833.679641914@linutronix.de>
Signed-off-by: Thomas Gleixner

rwsem: Cleanup includes

2011-01-27T11:30:38+00:00

All rwsem implementations include the same headers. Include them from
include/linux/rwsem.h

Signed-off-by: Thomas Gleixner 
Cc: Peter Zijlstra 
Cc: David Howells 
Cc: Benjamin Herrenschmidt 
Cc: Matt Turner 
Acked-by: Tony Luck 
Acked-by: Heiko Carstens 
Cc: Paul Mundt 
Acked-by: David Miller 
Cc: Chris Zankel 
LKML-Reference: <20110126195833.483520950@linutronix.de>

Remove "#ifdef KERNEL" checks from unexported headers

2008-04-30T15:29:54+00:00

Remove the "#ifdef __KERNEL__" tests from unexported header files in
linux/include whose entire contents are wrapped in that preprocessor
test.

Signed-off-by: Robert P. J. Day 
Cc: David Woodhouse 
Cc: Sam Ravnborg 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] lockdep: add more rwsem.h documentation

2006-07-10T20:24:14+00:00

Add more documentation to rwsem.h.

Signed-off-by: Ingo Molnar 
Cc: David Howells 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

linux-toradex.git/include/linux/rwsem.h, branch Colibri_T30_LinuxImageV2.1Beta2_20140206

atomic: use

rw_semaphore: remove up/down_read_non_owner

rwsem: Remove redundant asmregparm annotation

rwsem: Move duplicate function prototypes to linux/rwsem.h

rwsem: Unify the duplicate rwsem_is_locked() inlines

rwsem: Move duplicate init macros and functions to linux/rwsem.h

rwsem: Move duplicate struct rwsem declaration to linux/rwsem.h

rwsem: Cleanup includes

Remove "#ifdef __KERNEL__" checks from unexported headers

[PATCH] lockdep: add more rwsem.h documentation

Remove "#ifdef KERNEL" checks from unexported headers