Chris Mason
a236aed14c
Btrfs: Deal with failed writes in mirrored configurations
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:02 -04:00
Chris Mason
ec44a35cbe
Btrfs: Add balance ioctl to restripe the chunks
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:02 -04:00
Chris Mason
788f20eb5a
Btrfs: Add new ioctl to add devices
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:02 -04:00
Chris Mason
8f18cf1339
Btrfs: Make the resizer work based on shrinking and growing devices
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:02 -04:00
Chris Mason
b30757178d
Btrfs: Add a special device list for chunk allocations
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This allows other code that needs to walk every device in the FS to do so
without locking against allocations.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:02 -04:00
Chris Mason
f2d8d74d78
Btrfs: Make an unplug function that doesn't unplug every spindle
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:02 -04:00
Chris Mason
e17cade25f
Btrfs: Add chunk uuids and update multi-device back references
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Block headers now store the chunk tree uuid
Chunk items records the device uuid for each stripes
Device extent items record better back refs to the chunk tree
Block groups record better back refs to the chunk tree
The chunk tree format has also changed. The objectid of BTRFS_CHUNK_ITEM_KEY
used to be the logical offset of the chunk. Now it is a chunk tree id,
with the logical offset being stored in the offset field of the key.
This allows a single chunk tree to record multiple logical address spaces,
upping the number of bytes indexed by a chunk tree from 2^64 to
2^128.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
Chris Mason
f29844623d
Btrfs: Write out all super blocks on commit, and bring back proper barrier support
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
Chris Mason
f188591e98
Btrfs: Retry metadata reads in the face of checksum failures
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
Chris Mason
cea9e4452e
Change btrfs_map_block to return a structure with mappings for all stripes
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
Chris Mason
8790d502e4
Btrfs: Add support for mirroring across drives
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
Chris Mason
8a4b83cc8b
Btrfs: Add support for device scanning and detection ioctls
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
Chris Mason
239b14b32d
Btrfs: Bring back mount -o ssd optimizations
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
Chris Mason
0d81ba5dbe
Btrfs: Move device information into the super block so it can be scanned
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
Chris Mason
6324fbf334
Btrfs: Dynamic chunk and block group allocation
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:01 -04:00
Chris Mason
0b86a832a1
Btrfs: Add support for multiple devices per filesystem
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Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:00 -04:00
