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| author | NeilBrown <neilb@suse.de> | 2010-05-22 00:31:36 +0200 |
|---|---|---|
| committer | NeilBrown <neilb@suse.de> | 2010-05-22 00:31:36 +0200 |
| commit | 19fdb9eefb21b72edbc365b838502780c392bad6 (patch) | |
| tree | deae04c48532d6eab64ed4b0396737bb854b5506 /Documentation/volatile-considered-harmful.txt | |
| parent | md: don't insist on valid event count for spare devices. (diff) | |
| parent | sysfs: Implement sysfs tagged directory support. (diff) | |
| download | linux-19fdb9eefb21b72edbc365b838502780c392bad6.tar.xz linux-19fdb9eefb21b72edbc365b838502780c392bad6.zip | |
Merge commit '3ff195b011d7decf501a4d55aeed312731094796' into for-linus
Conflicts:
drivers/md/md.c
- Resolved conflict in md_update_sb
- Added extra 'NULL' arg to new instance of sysfs_get_dirent.
Signed-off-by: NeilBrown <neilb@suse.de>
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: |