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authorPeter Zijlstra <[email protected]>2011-06-22 09:20:09 +0000
committerIngo Molnar <[email protected]>2011-06-22 09:39:34 +0000
commit4f2a8d3cf5e0486fd547633fa86c5d130ae98cad (patch)
tree4f60a635565fd63473e5c23f45745b3b502a1d52 /drivers/net/xen-netfront.c
parentprintk: Release console_sem after logbuf_lock (diff)
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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 'drivers/net/xen-netfront.c')
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