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[XFS] On-demand reaping of the MRU cache

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Instead of running the mru cache reaper all the time based on a timeout,
we should only run it when the cache has active objects. This allows CPUs
to sleep when there is no activity rather than be woken repeatedly just to
check if there is anything to do.

SGI-PV: 968554
SGI-Modid: xfs-linux-melb:xfs-kern:29305a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Donald Douwsma <donaldd@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>
This commit is contained in:
David Chinner
2007-08-16 15:21:11 +10:00
committed by Tim Shimmin
parent c2f828977b
commit 65de556756
3 changed files with 31 additions and 50 deletions
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3
fs/xfs/xfs_filestream.c
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@@ -467,8 +467,7 @@ void
xfs_filestream_flush(
xfs_mount_t *mp)
{
/* point in time flush, so keep the reaper running */
xfs_mru_cache_flush(mp->m_filestream, 1);
xfs_mru_cache_flush(mp->m_filestream);
}
/*