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path: root/fs/ubifs/gc.c
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2009-01-29UBIFS: remount ro fixesAdrian Hunter1-13/+5
- preserve the idx_gc list - it will be needed in the same state, should UBIFS be remounted rw again - prevent remounting ro if we have switched to read only mode (due to a fatal error) Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-01-29UBIFS: spelling fix 'date' -> 'data'Adrian Hunter1-1/+1
Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-01-26UBIFS: fix LEB list freeingArtem Bityutskiy1-4/+12
When freeing the c->idx_lebs list, we have to release the LEBs as well, because we might be called from mount to read-only mode code. Otherwise the LEBs stay taken forever, which may cause problems when we re-mount back ro RW mode. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-01-20UBIFS: document dark_wm and dead_wm betterArtem Bityutskiy1-0/+20
Just add more commentaries. Also some commentary fixes for lprops flags. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2009-01-06trivial: fix then -> than typos in comments and documentationFrederik Schwarzer1-1/+1
- (better, more, bigger ...) then -> (...) than Signed-off-by: Frederik Schwarzer <schwarzerf@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-09-30UBIFS: improve garbage collectionAdrian Hunter1-10/+72
Make garbage collection try to keep data nodes from the same inode together and in ascending order. This improves performance when reading those nodes especially when bulk-read is used. Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
2008-09-30UBIFS: remove unneeded unlikely()Hirofumi Nakagawa1-4/+4
IS_ERR() macro already has unlikely(), so do not use constructions like 'if (unlikely(IS_ERR())'. Signed-off-by: Hirofumi Nakagawa <hnakagawa@miraclelinux.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-09-17UBIFS: TNC / GC race fixesAdrian Hunter1-3/+11
- update GC sequence number if any nodes may have been moved even if GC did not finish the LEB - don't ignore error return when reading Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-08-25UBIFS: allow for racing between GC and TNCAdrian Hunter1-0/+6
The TNC mutex is unlocked prematurely when reading leaf nodes with non-hashed keys. This is unsafe because the node may be moved by garbage collection and the eraseblock unmapped, although that has never actually happened during stress testing. This patch fixes the flaw by detecting the race and retrying with the TNC mutex locked. Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
2008-07-15UBIFS: add new flash file systemArtem Bityutskiy1-0/+773
This is a new flash file system. See http://www.linux-mtd.infradead.org/doc/ubifs.html Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
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