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| author | NeilBrown <neilb@suse.de> | 2005-11-08 21:39:22 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2005-11-09 07:56:36 -0800 |
| commit | 4e5314b56a7ea11c7a5f2b8418992b2f49648a25 (patch) | |
| tree | 58b0c604f4f4e55523d2c93971f79d80e406b9ce /Kbuild | |
| parent | 703ebe86a999861e833be4015aaf552837e9613a (diff) | |
| download | op-kernel-dev-4e5314b56a7ea11c7a5f2b8418992b2f49648a25.zip op-kernel-dev-4e5314b56a7ea11c7a5f2b8418992b2f49648a25.tar.gz | |
[PATCH] md: better handling of readerrors with raid5.
This patch changes the behaviour of raid5 when it gets a read error.
Instead of just failing the device, it tried to find out what should have
been there, and writes it over the bad block. For some media-errors, this
has a reasonable chance of fixing the error. If the write succeeds, and a
subsequent read succeeds as well, raid5 decided the address is OK and
conitnues.
Instead of failing a drive on read-error, we attempt to re-write the block,
and then re-read. If that all works, we allow the device to remain in the
array.
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'Kbuild')
0 files changed, 0 insertions, 0 deletions
