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71 Commits (2f2f9ef77a8905777fa05eb8c2003dc562d10e79)

Author SHA1 Message Date
Josef Bacik 059c20b384 btrfs-progs new dir index support 2008-07-24 12:13:32 -04:00
Chris Mason 9864c90760 Print the version string in a few programs 2008-07-24 12:13:30 -04:00
Chris Mason a62332eeb2 Add a readonly flag open_ctree to force RO opens 2008-05-05 09:45:26 -04:00
Chris Mason f86e8be3f8 Fix uninitialized variables, and use -O so gcc starts checking for them 
Gcc only sends warnings for uninitialized variables when you compile with -O,
and there were a couple of bugs sprinkled in the code.  The biggest was the
alloc_start variable for mkfs, which can cause strange things to happen.

(thanks to Gabor Micsko for helping to find this)
 2008-05-01 10:22:47 -04:00
Chris Mason b327761ead Add btrfs-vol command to balance, add and (eventually) remove devices 2008-04-28 16:44:22 -04:00
Chris Mason 083faf794f Add mkfs.btrfs -A offset to control allocation start on devices 
This is a utility option for the resizer, it makes sure to allocate
at offset bytes in the disk or higher.  It ensures the resizer will have
something to move when testing it.
 2008-04-25 16:55:21 -04:00
Chris Mason 8bfbb6b6f8 Update the Ext3 converter 
The main changes in this patch are adding chunk handing and data relocation
ability. In the last step of conversion, the converter relocates data in system
chunk and move chunk tree into system chunk. In the rollback process, the
converter remove chunk tree from system chunk and copy data back.

Regards
YZ
---
 2008-04-22 14:06:56 -04:00
Chris Mason 358564890a Add a command to show all of the btrfs filesystems on the box (btrfs-show) 2008-04-22 14:06:31 -04:00
Chris Mason 0e08036ee4 Add checks to avoid adding the same device twice during mkfs 2008-04-18 10:45:17 -04:00
Chris Mason 734603d927 Use better chunk sizes for small and large filesystems 2008-04-18 10:31:42 -04:00
Chris Mason 588bb9dfff Add support for filesystem labels via mkfs.btrfs -L 2008-04-18 10:31:42 -04:00
Chris Mason 1f81c1b6fc Add raid10 support 2008-04-16 11:14:21 -04:00
Chris Mason 951fd7371c Add chunk uuids and update multi-device back references 
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.
 2008-04-15 15:42:08 -04:00
Chris Mason 4f9e7f0bae Use leafsize and nodesize == pagesize for now 2008-04-09 19:49:01 -04:00
Chris Mason a37e1e7204 Recow all roots at the end of mkfs 
The mkfs code bootstraps the filesystem on a single device.  Once
the raid block groups are setup, it needs to recow all of the blocks so
that each tree is properly allocated.
 2008-04-04 15:42:17 -04:00
Chris Mason a57a255e44 Add mkfs options for data and metadata mirroring modes 
mkfs.btrfs --data {raid0,raid1,single}
mkfs.btrfs --metadata {raid0,raid1,single}

In single mode, no extra duplication or striping is done.
In raid0 mode, blocks are spread across all of the available devices
In raid1 mode, blocks are mirrored across two devices.

For metadata, if raid1 is used and there is only one device, the
metadata is duplicated on that single spindle.

The defaults are raid0 for data and raid1 for metadata
 2008-04-03 16:35:48 -04:00
Chris Mason c7be130df7 Add support for single single duplication of metadata 2008-04-03 16:35:48 -04:00
Chris Mason a6de0bd778 Add mirroring support across multiple drives 2008-04-03 16:35:48 -04:00
Chris Mason 6a87b4c00a Use getopt_long and introduce long mkfs options. -s now means --sectorsize 2008-04-01 11:08:13 -04:00
Goldwyn Rodrigues c2c5e3e7e5 check if partition is mounted before mkfs 
This saves from the blunder of formatting a live mounted filesystem.
This can be extended to get the mount flags of the filesystem
mounted.

Signed-off-by: Goldwyn Rodrigues <rgoldwyn@gmail.com>
 2008-04-01 10:36:46 -04:00
Chris Mason 0dcfa3b827 Walk all block devices looking for btrfs 2008-03-24 15:05:44 -04:00
Chris Mason 26afd0f31d ioctls to scan for btrfs filesystems 2008-03-24 15:04:49 -04:00
Chris Mason 510be29677 Add support for multiple devices per filesystem 2008-03-24 15:03:18 -04:00
Chris Mason 0c6513b1d1 mkfs: Zero 2MB at the start and end of the device 
But, on sparc, don't zero the first 1k.
 2008-02-15 11:19:26 -05:00
Yan 7777e63b42 Update btrfs-progs to match kernel sources 2008-01-04 10:38:22 -05:00
Chris Mason 7e03dadf20 Add online resizing ioctls 
btrfsctl -r size mount_point
 2007-12-21 16:25:35 -05:00
Chris Mason 29bf1724b1 Reorder extent back refs to differentiate file data from btree blocks 2007-12-13 11:12:45 -05:00
Chris Mason 140d96a562 Create macros to generation set/get funcs for on disk structures 2007-12-12 14:39:46 -05:00
Chris Mason 4122e65cb2 Add back pointers from extents to the file or btree referencing them 2007-12-11 09:21:42 -05:00
Chris Mason 73372dcf8f Add generation numbers to block pointers 2007-12-09 13:46:24 -05:00
Chris Mason 1883251686 Add simple stripe size parameter 2007-11-30 11:30:24 -05:00
Chris Mason 678af9b3a4 Remove the last radix tree (block_group_cache) 2007-10-17 09:58:56 -04:00
Chris Mason 38f79f9077 Switch to byte granular allocations 2007-10-15 16:25:14 -04:00
Chris Mason f12d799856 Allow large blocks 2007-10-15 16:24:39 -04:00
Josef Bacik ffaff17911 btrfs-progs support for root block accounting 
This adds support for keeping track of the number of blocks used by
root_item's.  This makes it so that mkfs lays down the "default" subvol with
the correct block accounting in place.  Thank you,
 2007-08-29 15:56:44 -04:00
Chris Mason 0528b69c15 add defrag ioctl 2007-08-07 16:15:59 -04:00
Chris Mason 65a545ff84 i386 fixes from axboe 2007-06-12 11:39:09 -04:00
Chris Mason d9f1317c7d add GPLv2 2007-06-12 09:07:11 -04:00
Chris Mason 38ef945266 printf cleanups 2007-06-12 08:08:04 -04:00
Chris Mason b53a236c3e remove device tree 2007-06-09 09:22:37 -04:00
Chris Mason 84e9d08a4b endian fixes, makefile fixes 2007-06-07 22:12:21 -04:00
Chris Mason 9b25940b9d data vs metadata flag for block groups 2007-05-30 10:21:32 -04:00
Chris Mason 5856b7e124 start of block group code 2007-04-26 16:46:06 -04:00
Chris Mason 10d06538f1 get rid of the extent_item type field 2007-04-24 12:09:01 -04:00
Chris Mason 885f275a68 fsck checks against extent map, small fixes 2007-04-23 17:00:26 -04:00
Chris Mason 2f2264fc2d add owner and type fields to the extents aand block headers 2007-04-20 20:23:29 -04:00
Chris Mason 3eaaf935e5 add some support for multiple devices to progs 2007-04-12 12:14:47 -04:00
Chris Mason d23ea8706c early support for multiple devices 2007-04-11 13:57:55 -04:00
Chris Mason 6d9ce71c81 use a different inode number for subvols than the root root dir 2007-04-11 08:58:53 -04:00
Chris Mason e52d2e2fa1 drop owner and parentid 2007-04-10 12:36:58 -04:00