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authorWu Fengguang <fengguang.wu@intel.com>2010-12-22 02:24:21 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2010-12-23 04:43:33 +0100
commitd153ba64450b9371158c6516d6cac120faace44c (patch)
tree78bb90ade76b84312e1e332a02021eb8eb1cda42 /drivers/gpio/gpiolib.c
parentlogfs: fix "Kernel BUG at readwrite.c:1193" (diff)
downloadlinux-d153ba64450b9371158c6516d6cac120faace44c.tar.xz
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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 'drivers/gpio/gpiolib.c')
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