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| author |   Wu Fengguang <fengguang.wu@intel.com> | 2010-12-21 17:24:21 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2010-12-22 19:43:33 -0800 |
| commit | d153ba64450b9371158c6516d6cac120faace44c (patch) | |
| tree | 78bb90ade76b84312e1e332a02021eb8eb1cda42 /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | logfs: fix "Kernel BUG at readwrite.c:1193" (diff) | |
| download | wireguard-linux-d153ba64450b9371158c6516d6cac120faace44c.tar.xz wireguard-linux-d153ba64450b9371158c6516d6cac120faace44c.zip | |
writeback: do uninterruptible sleep in balance_dirty_pages()
Using TASK_INTERRUPTIBLE in balance_dirty_pages() seems wrong. If it's
going to do that then it must break out if signal_pending(), otherwise
it's pretty much guaranteed to degenerate into a busywait loop. Plus we
*do* want these processes to appear in D state and to contribute to load
average.
So it should be TASK_UNINTERRUPTIBLE. -- Andrew Morton
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions