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| author | Rik van Riel <riel@redhat.com> | 2014-06-06 14:38:14 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-06 16:08:17 -0700 |
| commit | 722773afd83209d4088d30946bc274f547528a0b (patch) | |
| tree | 991d1315b8345909e9d9fae4f881b168b4f48944 /mm/highmem.c | |
| parent | 984d74a72076a12b400339973e8c98fd2fcd90e5 (diff) | |
| download | linux-722773afd83209d4088d30946bc274f547528a0b.tar.gz linux-722773afd83209d4088d30946bc274f547528a0b.tar.bz2 linux-722773afd83209d4088d30946bc274f547528a0b.zip | |
sysrq,rcu: suppress RCU stall warnings while sysrq runs
Some sysrq handlers can run for a long time, because they dump a lot of
data onto a serial console. Having RCU stall warnings pop up in the
middle of them only makes the problem worse.
This patch temporarily disables RCU stall warnings while a sysrq request
is handled.
Signed-off-by: Rik van Riel <riel@redhat.com>
Suggested-by: Paul McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Madper Xie <cxie@redhat.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/highmem.c')
0 files changed, 0 insertions, 0 deletions