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authorJiri Kosina <jkosina@suse.cz>2007-07-15 23:41:51 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 09:05:52 -0700
commit1492192b4a0bb84dd9b792cc0bd30583220a28a7 (patch)
tree54763778f2c1ed69ae967022dd940b4bcc040120 /.gitignore
parent017f021c7e5fe3f82ccc5cbb7b1750e66e00f527 (diff)
downloadconfigs-1492192b4a0bb84dd9b792cc0bd30583220a28a7.tar.gz
kernel/printk.c: document possible deadlock against scheduler
kernel/printk.c: document possible deadlock against scheduler The printk's comment states that it can be called from every context, which might lead to false illusion that it could be called from everywhere without any restrictions. This is however not true - a call to printk() could deadlock if called from scheduler code (namely from schedule(), wake_up(), etc) on runqueue lock when it tries to wake up klogd. Document this. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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