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mm: write_cache_pages more terminate quickly

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Now that we have the early-termination logic in place, it makes sense to
bail out early in all other cases where done is set to 1.

Signed-off-by: Nick Piggin <[email protected]>
Cc: Chris Mason <[email protected]>
Cc: Dave Chinner <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Andrew Morton 2009-01-06 14:39:11 -08:00 • committed by Linus Torvalds
commit 82fd1a9a8c
1 changed files with 4 additions and 1 deletions
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5
mm/page-writeback.c
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@ -983,12 +983,15 @@ continue_unlock:
if (wbc->sync_mode == WB_SYNC_NONE) {
wbc->nr_to_write--;
if (wbc->nr_to_write <= 0)
if (wbc->nr_to_write <= 0) {
done = 1;
break;
}
}
if (wbc->nonblocking && bdi_write_congested(bdi)) {
wbc->encountered_congestion = 1;
done = 1;
break;
}
}
pagevec_release(&pvec);