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This patch implements a number of smp_processor_id() cleanup ideas that
Arjan van de Ven and I came up with.
The previous __smp_processor_id/_smp_processor_id/smp_processor_id API
spaghetti was hard to follow both on the implementational and on the
usage side.
Some of the complexity arose from picking wrong names, some of the
complexity comes from the fact that not all architectures defined
__smp_processor_id.
In the new code, there are two externally visible symbols:
- smp_processor_id(): debug variant.
- raw_smp_processor_id(): nondebug variant. Replaces all existing
uses of _smp_processor_id() and __smp_processor_id(). Defined
by every SMP architecture in include/asm-*/smp.h.
There is one new internal symbol, dependent on DEBUG_PREEMPT:
- debug_smp_processor_id(): internal debug variant, mapped to
smp_processor_id().
Also, i moved debug_smp_processor_id() from lib/kernel_lock.c into a new
lib/smp_processor_id.c file. All related comments got updated and/or
clarified.
I have build/boot tested the following 8 .config combinations on x86:
{SMP,UP} x {PREEMPT,!PREEMPT} x {DEBUG_PREEMPT,!DEBUG_PREEMPT}
I have also build/boot tested x64 on UP/PREEMPT/DEBUG_PREEMPT. (Other
architectures are untested, but should work just fine.)
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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SGI-PV: 931572
SGI-Modid: xfs-linux-melb:xfs-kern:189560a
Signed-off-by: Dean Roehrich <roehrich@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 932952
SGI-Modid: xfs-linux-melb:xfs-kern:22929a
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 938145
SGI-Modid: xfs-linux:xfs-kern:22901a
Signed-off-by: Nathan Scott <nathans@sgi.com>
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not enabled though.
SGI-PV: 938145
SGI-Modid: xfs-linux:xfs-kern:22900a
Signed-off-by: Nathan Scott <nathans@sgi.com>
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ioctls for project IDs.
SGI-PV: 938145
SGI-Modid: xfs-linux:xfs-kern:22899a
Signed-off-by: Nathan Scott <nathans@sgi.com>
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direct I/O locking changes it is just a wrapper around
VOP_FLUSHINVAL_PAGES, so it's not nessecary anymore. Keep a simplified
version for kernels < 2.4.22, as these don't have the changed direct I/O
locking.
SGI-PV: 938064
SGI-Modid: xfs-linux:xfs-kern:194420a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 938063
SGI-Modid: xfs-linux:xfs-kern:194416a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 938062
SGI-Modid: xfs-linux:xfs-kern:194415a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 936977
SGI-Modid: xfs-linux:xfs-kern:193840a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 928382
SGI-Modid: xfs-linux:xfs-kern:193778a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 936255
SGI-Modid: xfs-linux:xfs-kern:193691a
Signed-off-by: Eric Sandeen <sandeen@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 932952
SGI-Modid: xfs-linux:xfs-kern:22806a
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 932952
SGI-Modid: xfs-linux:xfs-kern:22805a
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 936977
SGI-Modid: xfs-linux:xfs-kern:193409a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 936891
SGI-Modid: xfs-linux:xfs-kern:193408a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 936890
SGI-Modid: xfs-linux:xfs-kern:193349a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 936255
SGI-Modid: xfs-linux:xfs-kern:192760a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 936255
SGI-Modid: xfs-linux:xfs-kern:192759a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 908809
SGI-Modid: xfs-linux:xfs-kern:192756a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 934679
SGI-Modid: xfs-linux:xfs-kern:192570a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 908809
SGI-Modid: xfs-linux:xfs-kern:192348a
Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 933551
SGI-Modid: xfs-linux:xfs-kern:190622a
Signed-off-by: Dean Roehrich <roehrich@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI-PV: 932952
SGI-Modid: xfs-linux:xfs-kern:21938a
Signed-off-by: Nathan Scott <nathans@sgi.com>
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SGI Modid: xfs-linux:xfs-kern:21810a
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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This may be the cause of several open PV's of incorrect
delay flags being set and then tripping asserts.
Do not return a delay alloc extent when the caller is asking to do a write.
SGI Modid: xfs-linux:xfs-kern:189616a
Signed-off-by: Russell Cattelan <cattelan@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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SGI Modid: xfs-linux:xfs-kern:22378a
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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covered the offset originally requested. Can cause data corruption when multiple processes are performing writeout on different areas of the same file. Quite difficult to hit though.
SGI Modid: xfs-linux:xfs-kern:22377a
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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SGI Modid: xfs-linux:xfs-kern:22376a
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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SGI Modid: xfs-linux:xfs-kern:191625a
Signed-off-by: Eric Sandeen <sandeen@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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SGI Modid: xfs-linux:xfs-kern:191586a
Signed-off-by: Daniel Moore <dxm@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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handling for unwritten extents can be moved out of interrupt context.
SGI Modid: xfs-linux:xfs-kern:22343a
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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SGI Modid: xfs-linux:xfs-kern:22342a
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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SGI Modid: xfs-linux:xfs-kern:191411a
Signed-off-by: Eric Sandeen <sandeen@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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SGI Modid: xfs-linux:xfs-kern:22261a
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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SGI Modid: xfs-linux:xfs-kern:190711a
Signed-off-by: Dean Roehrich <roehrich@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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SGI Modid: xfs-linux:xfs-kern:190725a
Signed-off-by: Eric Sandeen <sandeen@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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some platforms
SGI Modid: xfs-linux:xfs-kern:22032a
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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SGI Modid: xfs-linux:xfs-kern:21937a
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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SGI Modid: xfs-linux:xfs-kern:21915a
Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>
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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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