linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2007-05-08	atomic.h: atomic_add_unless as inline. Remove system.h atomic.h circular dependency	Mathieu Desnoyers	1	-0/+1
	atomic_add_unless as inline. Remove system.h atomic.h circular dependency. I agree (with Andi Kleen) this typeof is not needed and more error prone. All the original atomic.h code that uses cmpxchg (which includes the atomic_add_unless) uses defines instead of inline functions, probably to circumvent a circular dependency between system.h and atomic.h on powerpc (which my patch addresses). Therefore, it makes sense to use inline functions that will provide type checking. atomic_add_unless as inline. Remove system.h atomic.h circular dependency. Digging into the FRV architecture shows me that it is also affected by such a circular dependency. Here is the diff applying this against the rest of my atomic.h patches. It applies over the atomic.h standardization patches. Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-15	[ARM] 4264/1: ldrex/strex syntax errors with recent compilers	Stelian Pop	1	-2/+2
	Trying to build some code using atomic_clear_mask() on a ARM v6 processor with a recent compiler (tried with gcc version 4.1.1 (CodeSourcery ARM Sourcery G++ 2006q3-26), but all gcc > 4.1 might be affected) results in the following: /tmp/ccWKLJV8.s: Assembler messages: /tmp/ccWKLJV8.s:581: Error: instruction does not accept this addressing mode -- `ldrex r0,r3' /tmp/ccWKLJV8.s:583: Error: instruction does not accept this addressing mode -- `strex r1,r0,r3' Older gcc (like gcc version 4.0.0 (DENX ELDK 4.1 4.0.0)) have no problem with this. The patch below fixes the compile error. I also verified that gcc-4.0.0 generates identical code using both forms. Signed-off-by: Stelian Pop <stelian@popies.net> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25	[ARM] 3810/1: switch atomic helpers over to raw_local_irq_{save,restore}	Lennert Buytenhek	1	-8/+8
	Now that we have raw_* variants of local_irq_$FOO(), switch the atomic helpers over to use those raw_* variants. This is necessary when using lockdep on pre-ARMv6 hardware, as lockdep uses atomic_t counters in the trace_hardirqs_off() path. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-04-26	Don't include linux/config.h from anywhere else in include/	David Woodhouse	1	-1/+0
	Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-01-09	[PATCH] mutex subsystem, add atomic_xchg() to all arches	Ingo Molnar	1	-0/+2
	add atomic_xchg() to all the architectures. Needed by the new mutex code. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arjan van de Ven <arjan@infradead.org>
2006-01-06	[PATCH] atomic_long_t & include/asm-generic/atomic.h V2	Christoph Lameter	1	-0/+1
	Several counters already have the need to use 64 atomic variables on 64 bit platforms (see mm_counter_t in sched.h). We have to do ugly ifdefs to fall back to 32 bit atomic on 32 bit platforms. The VM statistics patch that I am working on will also make more extensive use of atomic64. This patch introduces a new type atomic_long_t by providing definitions in asm-generic/atomic.h that works similar to the c "long" type. Its 32 bits on 32 bit platforms and 64 bits on 64 bit platforms. Also cleans up the determination of the mm_counter_t in sched.h. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-16	[ARM] Use unsigned long not u32 in atomic_cmpxchg	Russell King	1	-1/+1
	Since atomic.h does not include types.h, u32 may not be defined. Since atomics are supposed to work on unsigned long quantities, use unsigned long instead. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-16	[ARM] Add linux/compiler.h includes where required	Russell King	1	-0/+1
	atomic.h, bitops.h and mmu_context.h are using likely/unlikely. thread_info.h uses __attribute_const__. Hence these files require linux/compiler.h to be included. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-16	[ARM] 3165/1: fix atomic_cmpxchg() implementation for ARMv6+	Nicolas Pitre	1	-0/+1
	Patch from Nicolas Pitre If 'old' and 'oldval' are different then 'res' never gets set. In that case, if ever %0 happened to contain anything but zero (rather likely) then the code will loop forever (or until another CPU just come along and change the atomic value to match 'old' which is rather unlikely). Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2005-11-13	[PATCH] atomic: inc_not_zero	Nick Piggin	1	-0/+11
	Introduce an atomic_inc_not_zero operation. Make this a special case of atomic_add_unless because lockless pagecache actually wants atomic_inc_not_negativeone due to its offset refcount. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-13	[PATCH] atomic: cmpxchg	Nick Piggin	1	-0/+31
	Introduce an atomic_cmpxchg operation. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-04-16	Linux-2.6.12-rc2	Linus Torvalds	1	-0/+165
	Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!