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| author | NeilBrown <neilb@cse.unsw.edu.au> | 2005-07-15 03:56:35 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-07-15 09:54:51 -0700 |
| commit | 6a806c510de490318846b53bbfec463d02ca274b (patch) | |
| tree | 7018abfd9db7856708bc2c578f48c30eab8855b1 /drivers/md/bitmap.c | |
| parent | a1287ba1ba810aae1f8b81e32560d5d3bf3ff9f0 (diff) | |
| download | linux-stable-6a806c510de490318846b53bbfec463d02ca274b.tar.gz linux-stable-6a806c510de490318846b53bbfec463d02ca274b.tar.bz2 linux-stable-6a806c510de490318846b53bbfec463d02ca274b.zip | |
[PATCH] md/raid1: clear bitmap when fullsync completes
We need to be careful differentiating between a resync of a complete array,
in which we can clear the bitmap, and a resync of a degraded array, in
which we cannot.
This patch cleans all that up.
Cc: Paul Clements <paul.clements@steeleye.com>
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'drivers/md/bitmap.c')
| -rw-r--r-- | drivers/md/bitmap.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index 95980ad6b27b..0c2ed99a3832 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -1345,7 +1345,8 @@ void bitmap_endwrite(struct bitmap *bitmap, sector_t offset, unsigned long secto } } -int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks) +int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks, + int degraded) { bitmap_counter_t *bmc; int rv; @@ -1362,8 +1363,10 @@ int bitmap_start_sync(struct bitmap *bitmap, sector_t offset, int *blocks) rv = 1; else if (NEEDED(*bmc)) { rv = 1; - *bmc |= RESYNC_MASK; - *bmc &= ~NEEDED_MASK; + if (!degraded) { /* don't set/clear bits if degraded */ + *bmc |= RESYNC_MASK; + *bmc &= ~NEEDED_MASK; + } } } spin_unlock_irq(&bitmap->lock); |