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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2017-10-26 16:36:45 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2017-11-03 08:00:28 +0100 |
| commit | 648a6f4495b183d4e0d8983ff768facb9a2185bb (patch) | |
| tree | a8ea80bbc79bfe42948ecf2ce46ee2c754b31c76 /arch/s390 | |
| parent | 2a2d7befd40c95fd0d27d14edd0ec3b479fcf21f (diff) | |
s390/qdio: use atomic_cmpxchg
qdio uses atomic_read to find an unused indicator and atomic_set to
flag it as used. This could lead to multiple users getting the same
indicator. Use atomic_cmpxchg instead.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Acked-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390')
0 files changed, 0 insertions, 0 deletions