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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2009-02-02 18:33:49 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2009-02-03 16:59:08 -0800
commitdcf6a79dda5cc2a2bec183e50d829030c0972aaa (patch)
tree557b2867e7c9df361f50b913936d60d4245cf6f8 /Documentation/cpu-freq/user-guide.txt
parent5193535517825f9a07967e4868a1103013d0a99d (diff)
write-back: fix nr_to_write counter
Commit 05fe478dd04e02fa230c305ab9b5616669821dd3 introduced some @wbc->nr_to_write breakage. It made the following changes: 1. Decrement wbc->nr_to_write instead of nr_to_write 2. Decrement wbc->nr_to_write _only_ if wbc->sync_mode == WB_SYNC_NONE 3. If synced nr_to_write pages, stop only if if wbc->sync_mode == WB_SYNC_NONE, otherwise keep going. However, according to the commit message, the intention was to only make change 3. Change 1 is a bug. Change 2 does not seem to be necessary, and it breaks UBIFS expectations, so if needed, it should be done separately later. And change 2 does not seem to be documented in the commit message. This patch does the following: 1. Undo changes 1 and 2 2. Add a comment explaining change 3 (it very useful to have comments in _code_, not only in the commit). Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Acked-by: Nick Piggin <npiggin@suse.de> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/cpu-freq/user-guide.txt')
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