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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-09-22 16:34:38 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-09-25 10:52:13 +0200 |
| commit | bbae71bf9c2fe90dc5642d4cddbbc1994861fd92 (patch) | |
| tree | 80ce9213a904817502ffc588eb31d5731cc9a250 /include/asm-generic/timex.h | |
| parent | s390/rwlock: improve writer fairness (diff) | |
| download | linux-bbae71bf9c2fe90dc5642d4cddbbc1994861fd92.tar.xz linux-bbae71bf9c2fe90dc5642d4cddbbc1994861fd92.zip | |
s390/rwlock: use the interlocked-access facility 1 instructions
Make use of the load-and-add, load-and-or and load-and-and instructions
to atomically update the read-write lock without a compare-and-swap loop.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'include/asm-generic/timex.h')
0 files changed, 0 insertions, 0 deletions