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| author | Wu Fengguang <fengguang.wu@intel.com> | 2010-08-11 23:17:39 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-12 17:43:29 +0200 |
| commit | 16c4042f08919f447d6b2a55679546c9b97c7264 (patch) | |
| tree | 0248b64d46237854ebe67efe8c742cb5878d8611 /lib | |
| parent | writeback: balance_dirty_pages(): reduce calls to global_page_state (diff) | |
| download | linux-16c4042f08919f447d6b2a55679546c9b97c7264.tar.xz linux-16c4042f08919f447d6b2a55679546c9b97c7264.zip | |
writeback: avoid unnecessary calculation of bdi dirty thresholds
Split get_dirty_limits() into global_dirty_limits()+bdi_dirty_limit(), so
that the latter can be avoided when under global dirty background
threshold (which is the normal state for most systems).
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'lib')
0 files changed, 0 insertions, 0 deletions