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authorChris Mason <chris.mason@oracle.com>2009-02-04 09:33:00 -0500
committerChris Mason <chris.mason@oracle.com>2009-02-04 09:33:00 -0500
commit9b0d3ace33ef225690a86d7130feadb22367f496 (patch)
treeeae45955a38b4d4c2515549112ec749590b56aa9 /fs/ntfs/debug.h
parent7b78c170dc4f538cc7ee66f47b3aac3f3974a36c (diff)
Btrfs: don't return congestion in write_cache_pages as often
On fast devices that go from congested to uncongested very quickly, pdflush is waiting too often in congestion_wait, and the FS is backing off to easily in write_cache_pages. For now, fix this on the btrfs side by only checking congestion after some bios have already gone down. Longer term a real fix is needed for pdflush, but that is a larger project. Signed-off-by: Chris Mason <chris.mason@oracle.com>
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