https://github.com/torvalds/linux
Revision 2dc91abe03d8ce6dd7f9251faffafca5f6b9e85d authored by Nick Piggin on 17 August 2010, 18:37:37 UTC, committed by Al Viro on 18 August 2010, 12:35:48 UTC
lglock: introduce special lglock and brlock spin locks This patch introduces "local-global" locks (lglocks). These can be used to: - Provide fast exclusive access to per-CPU data, with exclusive access to another CPU's data allowed but possibly subject to contention, and to provide very slow exclusive access to all per-CPU data. - Or to provide very fast and scalable read serialisation, and to provide very slow exclusive serialisation of data (not necessarily per-CPU data). Brlocks are also implemented as a short-hand notation for the latter use case. Thanks to Paul for local/global naming convention. Cc: linux-kernel@vger.kernel.org Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by: Nick Piggin <npiggin@kernel.dk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
1 parent d996b62
Tip revision: 2dc91abe03d8ce6dd7f9251faffafca5f6b9e85d authored by Nick Piggin on 17 August 2010, 18:37:37 UTC
lglock: introduce special lglock and brlock spin locks
lglock: introduce special lglock and brlock spin locks
Tip revision: 2dc91ab
| File | Mode | Size |
|---|---|---|
| Makefile | -rw-r--r-- | 8.1 KB |
| asciidoc.conf | -rw-r--r-- | 2.2 KB |
| examples.txt | -rw-r--r-- | 8.1 KB |
| manpage-1.72.xsl | -rw-r--r-- | 510 bytes |
| manpage-base.xsl | -rw-r--r-- | 1.2 KB |
| manpage-bold-literal.xsl | -rw-r--r-- | 578 bytes |
| manpage-normal.xsl | -rw-r--r-- | 475 bytes |
| manpage-suppress-sp.xsl | -rw-r--r-- | 737 bytes |
| perf-annotate.txt | -rw-r--r-- | 619 bytes |
| perf-archive.txt | -rw-r--r-- | 480 bytes |
| perf-bench.txt | -rw-r--r-- | 2.4 KB |
| perf-buildid-cache.txt | -rw-r--r-- | 647 bytes |
| perf-buildid-list.txt | -rw-r--r-- | 608 bytes |
| perf-diff.txt | -rw-r--r-- | 1.1 KB |
| perf-help.txt | -rw-r--r-- | 928 bytes |
| perf-inject.txt | -rw-r--r-- | 847 bytes |
| perf-kmem.txt | -rw-r--r-- | 770 bytes |
| perf-kvm.txt | -rw-r--r-- | 2.5 KB |
| perf-list.txt | -rw-r--r-- | 1.9 KB |
| perf-lock.txt | -rw-r--r-- | 554 bytes |
| perf-probe.txt | -rw-r--r-- | 5.2 KB |
| perf-record.txt | -rw-r--r-- | 2.6 KB |
| perf-report.txt | -rw-r--r-- | 1.6 KB |
| perf-sched.txt | -rw-r--r-- | 1.0 KB |
| perf-stat.txt | -rw-r--r-- | 1.9 KB |
| perf-test.txt | -rw-r--r-- | 341 bytes |
| perf-timechart.txt | -rw-r--r-- | 902 bytes |
| perf-top.txt | -rw-r--r-- | 2.3 KB |
| perf-trace-perl.txt | -rw-r--r-- | 7.2 KB |
| perf-trace-python.txt | -rw-r--r-- | 22.9 KB |
| perf-trace.txt | -rw-r--r-- | 2.0 KB |
| perf.txt | -rw-r--r-- | 565 bytes |
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