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authorJoern Engel <joern@logfs.org>2010-03-04 21:30:58 +0100
committerJoern Engel <joern@logfs.org>2010-03-04 21:30:58 +0100
commit9421502b4fc894cc477be8fc49776830e37ca157 (patch)
tree9c9b1bfa42b2acdf4b5e080a256c3cd37852a94f /Documentation/cpuidle
parent5c564c2a04d4bb6ba79eeb83bd06de584479f362 (diff)
[LogFS] Fix bdev erases
Erases for block devices were always just emulated by writing 0xff. Some time back the write was removed and only the page cache was changed to 0xff. Superficialy a good idea with two problems: 1. Touching the page cache isn't necessary either. 2. However, writing out 0xff _is_ necessary for the journal. As the journal is scanned linearly, an old non-overwritten commit entry can be used on next mount and cause havoc. This should fix both aspects.
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