diff options
author | Peter Zijlstra <[email protected]> | 2011-06-22 11:20:09 +0200 |
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committer | Ingo Molnar <[email protected]> | 2011-06-22 11:39:34 +0200 |
commit | 4f2a8d3cf5e0486fd547633fa86c5d130ae98cad (patch) | |
tree | 4f60a635565fd63473e5c23f45745b3b502a1d52 /lib/cpu-notifier-error-inject.c | |
parent | 0b5e1c5255e7ee8670e077e8224e5c2281229a5b (diff) |
printk: Fix console_sem vs logbuf_lock unlock race
Fix up the fallout from commit 0b5e1c5255 ("printk: Release
console_sem after logbuf_lock").
The reason for unlocking the console_sem under the logbuf_lock
is that a concurrent printk() might fill up the buffer but fail
to acquire the console sem, resulting in a missed write to the
console until a subsequent console_sem acquire/release cycle.
Signed-off-by: Peter Zijlstra <[email protected]>
Cc: [email protected]
Cc: Linus Torvalds <[email protected]>
Cc: Andrew Morton <[email protected]>
Link: http://lkml.kernel.org/r/1308734409.1022.14.camel@twins
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'lib/cpu-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions