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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-03 07:28:58 +0400 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2010-05-03 07:28:58 +0400 |
| commit | df2071bd081408318d659cd14a9cf6ff23d874c9 (patch) | |
| tree | b31291b5fd4b9f84c629833afbfaa8d431857475 /Documentation/volatile-considered-harmful.txt | |
| parent | 97e3d94aac1c3e95bd04d1b186479a4df3663ab8 (diff) | |
| parent | be1066bbcd443a65df312fdecea7e4959adedb45 (diff) | |
| download | linux-df2071bd081408318d659cd14a9cf6ff23d874c9.tar.xz | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'Documentation/volatile-considered-harmful.txt')
| -rw-r--r-- | Documentation/volatile-considered-harmful.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/volatile-considered-harmful.txt b/Documentation/volatile-considered-harmful.txt index 991c26a6ef64..db0cb228d64a 100644 --- a/Documentation/volatile-considered-harmful.txt +++ b/Documentation/volatile-considered-harmful.txt @@ -63,9 +63,9 @@ way to perform a busy wait is: cpu_relax(); The cpu_relax() call can lower CPU power consumption or yield to a -hyperthreaded twin processor; it also happens to serve as a memory barrier, -so, once again, volatile is unnecessary. Of course, busy-waiting is -generally an anti-social act to begin with. +hyperthreaded twin processor; it also happens to serve as a compiler +barrier, so, once again, volatile is unnecessary. Of course, busy- +waiting is generally an anti-social act to begin with. There are still a few rare situations where volatile makes sense in the kernel: |