- 11 6月, 2009 1 次提交
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由 Aoi Shinkai 提交于
This fixes up a typo in the ll/sc based cmpxchg code which apparently wasn't getting a lot of testing due to the swapped old/new pair. With that fixed up, the ll/sc code also starts using it and provides its own atomic_add_unless(). Signed-off-by: NAoi Shinkai <shinkoi2005@gmail.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 07 1月, 2009 1 次提交
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由 Matthew Wilcox 提交于
The atomic_t type cannot currently be used in some header files because it would create an include loop with asm/atomic.h. Move the type definition to linux/types.h to break the loop. Signed-off-by: NMatthew Wilcox <willy@linux.intel.com> Cc: Huang Ying <ying.huang@intel.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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- 29 7月, 2008 1 次提交
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由 Paul Mundt 提交于
This follows the sparc changes a439fe51. Most of the moving about was done with Sam's directions at: http://marc.info/?l=linux-sh&m=121724823706062&w=2 with subsequent hacking and fixups entirely my fault. Signed-off-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 28 1月, 2008 1 次提交
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由 Stuart Menefy 提交于
This implements kernel-level atomic rollback built on top of gUSA, as an alternative non-IRQ based atomicity method. This is generally a faster method for platforms that are lacking the LL/SC pairs that SH-4A and later use, and is only supportable on legacy cores. Signed-off-by: NStuart Menefy <stuart.menefy@st.com> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 12 12月, 2006 1 次提交
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由 Paul Mundt 提交于
We have a few different ways to do the atomic operations, so split them out in to different headers rather than bloating atomic.h. Kernelspace gUSA will take this up to a third implementation. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 06 12月, 2006 1 次提交
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由 Paul Mundt 提交于
gcc4 gets a bit pissy about the outputs: include/asm/atomic.h: In function 'atomic_add': include/asm/atomic.h:37: error: invalid lvalue in asm statement include/asm/atomic.h:30: error: invalid lvalue in asm output 1 ... this ended up being a thinko anyways, so just fix it up. Verified for proper behaviour with the older toolchains, too. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 27 9月, 2006 2 次提交
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由 Paul Mundt 提交于
SH-4A implements LL/SC instructions, so we implement a simple set of atomic operations using these. Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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由 Paul Mundt 提交于
We had quite a bit of whitespace damage, clean most of it up.. Signed-off-by: NStuart Menefy <stuart.menefy@st.com> Signed-off-by: NArthur Othieno <a.othieno@bluewin.ch> Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
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- 10 1月, 2006 1 次提交
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由 Ingo Molnar 提交于
add atomic_xchg() to all the architectures. Needed by the new mutex code. Signed-off-by: NIngo Molnar <mingo@elte.hu> Signed-off-by: NArjan van de Ven <arjan@infradead.org>
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- 07 1月, 2006 1 次提交
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由 Christoph Lameter 提交于
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: NChristoph Lameter <clameter@sgi.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 14 11月, 2005 2 次提交
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由 Nick Piggin 提交于
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: NNick Piggin <npiggin@suse.de> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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由 Nick Piggin 提交于
Introduce an atomic_cmpxchg operation. Signed-off-by: NNick Piggin <npiggin@suse.de> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NLinus Torvalds <torvalds@osdl.org>
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- 17 4月, 2005 1 次提交
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由 Linus Torvalds 提交于
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!
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