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| author |   Peter Zijlstra <peterz@infradead.org> | 2017-05-02 13:22:07 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2017-05-15 10:15:15 +0200 |
| commit | 59eaef78bfea88fcbbd7b9b48ccf513aae1522c3 (patch) | |
| tree | eb668f47caa16eab8c3ac280654a28d25890ddee /kernel | |
| parent | x86/tsc: Provide 'tsc=unstable' boot parameter (diff) | |
| download | wireguard-linux-59eaef78bfea88fcbbd7b9b48ccf513aae1522c3.tar.xz wireguard-linux-59eaef78bfea88fcbbd7b9b48ccf513aae1522c3.zip | |
x86/tsc: Remodel cyc2ns to use seqcount_latch()
Replace the custom multi-value scheme with the more regular
seqcount_latch() scheme. Along with scrapping a lot of lines, the latch
scheme is better documented and used in more places.
The immediate benefit however is not being limited on the update side.
The current code has a limit where the writers block which is hit by
future changes.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions