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357 Commits

Author SHA1 Message Date
Chris Mason
6b80053d02 Btrfs: Add back the online defragging code 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
db94535db7 Btrfs: Allow tree blocks larger than the page size 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
1a5bc167f6 Btrfs: Change the remaining radix trees used by extent-tree.c to extent_map trees 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
96b5179d0d Btrfs: Stop using radix trees for the block group cache 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
f510cfecfc Btrfs: Fix extent_buffer and extent_state leaks 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
5f39d397df Btrfs: Create extent_buffer interface for large blocksizes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
cf67582bb2 Btrfs: Fix duplicate ENOSPC checks in find_free_extent 
find_free_extent would fail to wrap around to the start of the drive because
it was doing the enospc case checking twice in some cases, causing it
to return -ENOSPC early.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
d3c2fdcf7b Btrfs: Use balance_dirty_pages_nr on btree blocks 
btrfs_btree_balance_dirty is changed to pass the number of pages dirtied
for more accurate dirty throttling.  This lets the VM make better decisions
about when to force some writeback.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:00:48 -04:00
Yan
7d7d6068be Btrfs: Fix cache_block_group to catch holes at the start of the group 
Cache block group was overly complex and missed free blocks at the very start
of the group.  This patch simplifies things significantly.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-09-14 16:15:28 -04:00
Yan
e9fe395e47 Btrfs: Fix oopsen in extent_tree.c during enospc 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-08-29 09:11:44 -04:00
Josef Bacik
58176a9604 Btrfs: Add per-root block accounting and sysfs entries 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-08-29 15:47:34 -04:00
Chris Mason
b888db2bd7 Btrfs: Add delayed allocation to the extent based page tree code 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-08-27 16:49:44 -04:00
Chris Mason
2cc58cf24f Btrfs: Do more extensive readahead during tree searches 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-08-27 16:49:44 -04:00
Chris Mason
f2183bde1a Btrfs: Add BH_Defrag to mark buffers that are in need of defragging 
This allows the tree walking code to defrag only the newly allocated
buffers, it seems to be a good balance between perfect defragging and the
performance hit of repeatedly reallocating blocks.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-08-10 14:42:37 -04:00
Chris Mason
e9d0b13b5b Btrfs: Btree defrag on the extent-mapping tree as well 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-08-10 14:06:19 -04:00
Chris Mason
409eb95d7f Btrfs: Further reduce the concurrency penalty of defrag and drop_snapshot 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-08-08 20:17:12 -04:00
Chris Mason
26b8003f10 Btrfs: Replace extent tree preallocation code with some bit radix magic. 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-08-08 20:17:12 -04:00
Chris Mason
f4468e94c8 Btrfs: Let some locks go during defrag and snapshot dropping 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-08-08 10:08:58 -04:00
Chris Mason
6702ed490c Btrfs: Add run time btree defrag, and an ioctl to force btree defrag 
This adds two types of btree defrag, a run time form that tries to
defrag recently allocated blocks in the btree when they are still in ram,
and an ioctl that forces defrag of all btree blocks.

File data blocks are not defragged yet, but this can make a huge difference
in sequential btree reads.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-08-07 16:15:09 -04:00
Chris Mason
3c69faecb8 Btrfs: Fold some btree readahead routines into something more generic. 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-08-07 15:52:22 -04:00
Chris Mason
9f3a742736 Btrfs: Do snapshot deletion in smaller chunks. 
Before, snapshot deletion was a single atomic unit.  This caused considerable
lock contention and required an unbounded amount of space.  Now,
the drop_progress field in the root item is used to indicate how far along
snapshot deletion is, and to resume where it left off.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-08-07 15:52:19 -04:00
Zach Brown
ec6b910fb3 Btrfs: trivial include fixups 
Almost none of the files including module.h need to do so,
remove them.

Include sched.h in extent-tree.c to silence a warning about cond_resched()
being undeclared.

Signed-off-by: Zach Brown <zach.brown@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-07-11 10:00:37 -04:00
Chris Mason
ccd467d60e Btrfs: crash recovery fixes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-28 15:57:36 -04:00
Chris Mason
f2654de42a Btrfs: Allow find_free_extent callers to pass in an exclusion range 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-26 12:20:46 -04:00
Chris Mason
4b52dff6d3 Btrfs: Fix super block updates during transaction commit 
The super block written during commit was not consistent with the state of
the trees.  This change adds an in-memory copy of the super so that we can
make sure to write out consistent data during a commit.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-26 10:06:50 -04:00
Chris Mason
54aa1f4dfd Btrfs: Audit callers and return codes to make sure -ENOSPC gets up the stack 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-22 14:16:25 -04:00
Chris Mason
e011599b0f Btrfs: reada while dropping snapshots 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-19 16:23:05 -04:00
Chris Mason
85e55b13e4 Btrfs: cache the extent tree preallocation 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-19 15:50:51 -04:00
Chris Mason
8c2383c3dd Subject: Rework btrfs_file_write to only allocate while page locks are held 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-18 09:57:58 -04:00
Aneesh
f1ace244c8 btrfs: Code cleanup 
Attaching below is some of the code cleanups that i came across while
reading the code.

a) alloc_path already calls init_path.
b) Mention that btrfs_inode is the in memory copy.Ext4 have ext4_inode_info as
the in memory copy ext4_inode as the disk copy

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-13 16:18:26 -04:00
Chris Mason
6cbd557078 Btrfs: add GPLv2 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-12 09:07:21 -04:00
Chris Mason
5af3981c18 Btrfs: printk fixes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-12 07:50:13 -04:00
Chris Mason
84f54cfa78 Btrfs: 64 bit div fixes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-12 07:43:08 -04:00
Chris Mason
5276aedab0 Btrfs: fix oops after block group lookup 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-11 21:33:38 -04:00
Chris Mason
fabb568183 Btrfs: d_type optimization 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-07 22:13:21 -04:00
Chris Mason
fbdc762b4e Btrfs: use a separate flag for search_start vs a hint in find_free_extent 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-05-30 10:22:12 -04:00
Chris Mason
1e2677e000 Btrfs: block group switching 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-05-29 16:52:18 -04:00
Chris Mason
3a68637562 Btrfs: sparse files! 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-05-24 13:35:57 -04:00
Chris Mason
de428b63b1 Btrfs: allocator optimizations, truncate readahead 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-05-18 13:28:27 -04:00
Chris Mason
8d7be552a7 Btrfs: fix check_node and check_leaf to use less cpu 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-05-10 11:24:42 -04:00
Chris Mason
e37c9e6921 Btrfs: many allocator fixes, pretty solid 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-05-09 20:13:14 -04:00
Chris Mason
3e1ad54fe2 Btrfs: allocator and tuning 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-05-07 20:03:49 -04:00
Chris Mason
be74417553 Btrfs: more allocator enhancements 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-05-06 10:15:01 -04:00
Chris Mason
be08c1b9f8 Btrfs: early metadata/data split 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-05-03 09:06:49 -04:00
Chris Mason
35b7e47610 Btrfs: fix page cache memory leak 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-05-02 15:53:43 -04:00
Chris Mason
090d18753c Btrfs: directory readahead 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-05-01 08:53:32 -04:00
Chris Mason
31f3c99b73 Btrfs: allocator improvements, inode block groups 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-30 15:25:45 -04:00
Chris Mason
308535a05e Btrfs: prealloc more blocks for the extent map 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-28 15:17:08 -04:00
Chris Mason
7c4452b9a6 Btrfs: smarter transaction writeback 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-28 09:29:35 -04:00
Chris Mason
06a2f9fa4c Btrfs: try to drop dead cow pages from ram 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-28 08:48:10 -04:00
Chris Mason
28b8bb9e00 Btrfs: allocator tweaks 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-27 11:42:05 -04:00
Chris Mason
cd1bc4653d Btrfs: more block allocator work 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-27 10:08:34 -04:00
Chris Mason
9078a3e1e4 Btrfs: start of block group code 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-26 16:46:15 -04:00
Chris Mason
f2458e1d8c Btrfs: change around extent-tree prealloc 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-25 15:52:25 -04:00
Chris Mason
c62a1920ce Btrfs: get rid of the extent_item type field 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-24 12:07:39 -04:00
Chris Mason
5d0c3e60fe Btrfs: fix extent owner/type setting on extent tree blocks 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-23 17:01:05 -04:00
Chris Mason
4d77567309 Btrfs: add owner and type fields to the extents aand block headers 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-20 20:23:12 -04:00
Chris Mason
236454dfff Btrfs: many file_write fixes, inline data 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-19 13:37:44 -04:00
Chris Mason
a429e51371 Btrfs: working file_write, reorganized key flags 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-18 16:15:28 -04:00
Chris Mason
b18c668581 Btrfs: progress on file_write 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-17 13:26:50 -04:00
Chris Mason
7eccb903a8 Btrfs: create a logical->phsyical block number mapping scheme 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-11 15:53:25 -04:00
Chris Mason
d0dbc6245c Btrfs: drop owner and parentid 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-10 12:36:36 -04:00
Chris Mason
c5739bba52 Btrfs: snapshot progress 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-10 09:27:04 -04:00
Chris Mason
5f26f772e5 Btrfs: more inode indexed directory work 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-05 10:38:44 -04:00
Chris Mason
b1a4d96509 Btrfs: tweak the inode-map and free extent search starts on cold mount 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-04 15:27:52 -04:00
Chris Mason
2da566edd8 Btrfs: csum_verify_file_block locking fix 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-02 15:43:21 -04:00
Chris Mason
5caf2a0029 Btrfs: dynamic allocation of path struct 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-02 11:20:42 -04:00
Chris Mason
2c90e5d658 Btrfs: still corruption hunting 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-02 10:50:19 -04:00
Chris Mason
d602557953 Btrfs: corruption hunt continues 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-30 14:27:56 -04:00
Chris Mason
d98237b3ed Btrfs: use a btree inode instead of sb_getblk 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-28 13:57:48 -04:00
Chris Mason
f4b9aa8d3b btrfs_truncate 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-27 11:05:53 -04:00
Chris Mason
6407bf6d7c Btrfs: reference counts on data extents 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-27 06:33:00 -04:00
Chris Mason
dee26a9f7a btrfs_get_block, file read/write 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-26 16:00:06 -04:00
Chris Mason
8ef97622ca Btrfs: add a radix back bit tree 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-26 10:15:30 -04:00
Chris Mason
78fae27ebf Btrfs: leak fixes, pinning fixes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-25 11:35:08 -04:00
Chris Mason
d561c025ee Btrfs: very minimal locking 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-23 19:47:49 -04:00
Chris Mason
df2ce34c88 Btrfs: properly set new buffers for new blocks up to date 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-23 11:00:45 -04:00
Chris Mason
d571976292 btrfs_create, btrfs_write_super, btrfs_sync_fs 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-23 10:01:08 -04:00
Chris Mason
e20d96d64f Mountable btrfs, with readdir 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-22 12:13:20 -04:00
Chris Mason
2e635a2783 Btrfs: initial move to kernel module land 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-21 11:12:56 -04:00
Chris Mason
1261ec42b3 Btrfs: Better block record keeping, real mkfs 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-20 20:35:03 -04:00
Chris Mason
9f5fae2fe6 Btrfs: Add inode map, and the start of file extent items 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-20 14:38:32 -04:00
Chris Mason
e089f05c18 Btrfs: transaction handles everywhere 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-16 16:20:31 -04:00
Chris Mason
88fd146c27 Btrfs: pin freed blocks from the FS tree too 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-16 08:56:18 -04:00
Chris Mason
62e2749e03 Btrfs: Use a chunk of the key flags to record the item type. 
Add (untested and simple) directory item code
Fix comp_keys to use the new key ordering
Add btrfs_insert_empty_item

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-15 12:56:47 -04:00
Chris Mason
123abc88c9 Btrfs: variable block size support 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-14 14:14:43 -04:00
Chris Mason
4beb1b8b75 Btrfs: add leaf data casting helper 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-14 10:31:29 -04:00
Chris Mason
710874947a Btrfs: properly reset block cache on free 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-14 09:20:39 -04:00
Chris Mason
3768f3689f Btrfs: Change the super to point to a tree of trees to enable persistent snapshots 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-13 16:47:54 -04:00
Chris Mason
9aca1d5132 Btrfs: make some funcs static 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-13 11:09:37 -04:00
Chris Mason
234b63a091 rename funcs and structs to btrfs 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-13 10:46:10 -04:00
Chris Mason
cf27e1eec0 Btrfs: struct extent_item endian 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-13 09:49:06 -04:00
Chris Mason
1d4f8a0c1e Btrfs: node->blockptrs endian fixes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-13 09:28:32 -04:00
Chris Mason
0783fcfc4d Btrfs: struct item endian fixes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-12 20:12:07 -04:00
Chris Mason
e2fa7227cd Btrfs: struct key endian fixes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-12 16:22:34 -04:00
Chris Mason
7518a238ea Btrfs: get/set for struct header fields 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-12 12:01:18 -04:00
Chris Mason
83e15a28e0 fix leak in btrfs_drop_snapshot 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-12 09:03:27 -04:00
Chris Mason
20524f0226 Btrfs: recursion free-first pass 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-10 06:35:47 -05:00
Chris Mason
0579da4280 Btrfs: Fixup last found extent caching 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-07 16:15:30 -05:00
Chris Mason
037e639048 Btrfs: get rid of add recursion 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-07 11:50:24 -05:00
Chris Mason
a28ec19775 Btrfs: Fixup reference counting on cows 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-06 20:08:01 -05:00
Chris Mason
02217ed299 Btrfs: early reference counting 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-02 16:08:05 -05:00
Chris Mason
f0930a37f1 Btrfs: Fix extent code to use merge during delete 
Remove implicit commit in del_item and insert_item
Add implicit commit to close()
Add commit op in random-test

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-02 09:47:58 -05:00
Chris Mason
0f70abe2b3 Btrfs: more return code checking 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-02-28 16:46:22 -05:00
Chris Mason
aa5d6bed25 Btrfs: return code checking 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-02-28 16:35:06 -05:00
Chris Mason
7cf75962ac Btrfs: u64 cleanups 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-02-26 10:55:01 -05:00
Chris Mason
fec577fb7f Btrfs: Add fsx-style randomized tree tester 
Add debug-tree command to print the tree
Add extent-tree.c to the repo
Comment ctree.h

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-02-26 10:40:21 -05:00