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363 Commits

Author SHA1 Message Date
Chris Mason
d8d5f3e16d Btrfs: Add lowest key information to back refs for extent tree blocks as well. 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:58 -04:00
Chris Mason
7bb86316c3 Btrfs: Add back pointers from extents to the btree or file referencing them 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:58 -04:00
Chris Mason
87ee04eb0f Btrfs: Add simple stripe size parameter 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:58 -04:00
Chris Mason
ca6646264b Btrfs: Add efficient dirty accounting to the extent_map tree 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:58 -04:00
Chris Mason
448d640b66 Btrfs: Fine tune the btree writeback exclusion some more 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:58 -04:00
Chris Mason
8790bad7fb Btrfs: Only limit btree writeback for pdflush 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:58 -04:00
Chris Mason
793955bca6 Btrfs: Limit btree writeback to prevent seeks 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:58 -04:00
Yan
324ae4df00 Btrfs: Add block group pinned accounting back 
This patch adds a helper function 'update_pinned_extents' to
extent-tree.c. The usage of the helper function is similar to
'update_block_group',  the last parameter of the function indicates
pin vs unpin.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Chris Mason
0da5468f47 Btrfs: Use writepages for the metadata too 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Chris Mason
35ebb934bd Btrfs: Fix PAGE_CACHE_SHIFT shifts on 32 bit machines 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Yan Zheng
44b36eb20b Btrfs: Properly setup root key while reading the root 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Chris Mason
ff79f8190b Btrfs: Add back file data checksumming 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:57 -04:00
Chris Mason
304fced668 Btrfs: balance_dirty_pages_ratelimited is causing problems, use nr == 1 always 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
19c00ddcc3 Btrfs: Add back metadata checksumming 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
810191ff30 Btrfs: extent_map optimizations to cut down on CPU usage 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
Chris Mason
4dc119046d Btrfs: Add an extent buffer LRU to reduce radix tree hits 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2008-09-25 11:03:56 -04:00
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
09e71a3263 Btrfs: Use an array of pages in the extent buffers to reduce the cost of find_get_page 
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
6d36dcd48f Btrfs: Avoid memcpy where possible in extent_buffers 
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
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
Chris Mason
5ce14bbcdd Btrfs: Find and remove dead roots the first time a root is loaded. 
Dead roots are trees left over after a crash, and they were either in the
process of being removed or were waiting to be removed when the box crashed.
Before, a search of the entire tree of root pointers was done on mount
looking for dead roots.  Now, the search is done the first time we load
a root.

This makes mount faster when there are a large number of snapshots, and it
enables the block accounting code to properly update the block counts on
the latest root as old versions of the root are reaped after a crash.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-09-11 11:15:39 -04:00
Chris Mason
011410bd85 Btrfs: Add more synchronization before creating a snapshot 
File data checksums are only done during writepage, so we have to make sure
all pages are written when the snapshot is taken.  This also adds some
locking so that new writes don't race in and add new dirty pages.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-09-10 19:58:36 -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
Josef Bacik
15ee9bc7ed Btrfs: delay commits during fsync to allow more writers 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-08-10 16:22:09 -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
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
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
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
5eda7b5e9b Btrfs: Add the ability to find and remove dead roots after a crash. 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-22 14:16:25 -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
11bd143fc8 Btrfs: Switch to libcrc32c to avoid problems with cryptomgr on highmem machines 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-22 14:16:24 -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
Chris Mason
9ebefb180b Btrfs: patch queue: page_mkwrite 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-15 13:50:00 -04:00
Chris Mason
340887809d Btrfs: i386 fixes from axboe 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-12 11:36:58 -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
39279cc3d2 Btrfs: split up super.c 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-12 06:35:45 -04:00
Chris Mason
0cf6c62017 Btrfs: remove device tree 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-09 09:22:25 -04:00
Chris Mason
facda1e787 Btrfs: get forced transaction commits via workqueue 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-08 18:11:48 -04:00
Chris Mason
08607c1b18 Btrfs: add compat ioctl 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-06-08 15:33:54 -04:00
Chris Mason
f9f3c6b666 Btrfs: 2.6.21-git fixes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-05-21 14:05:12 -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
509659cde5 Btrfs: switch to crc32c instead of sha256 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-05-10 12:36:17 -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
be74417553 Btrfs: more allocator enhancements 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-05-06 10:15:01 -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
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
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
e66f709b15 Btrfs: write barriers on commit, balance level before split 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-20 13:16:02 -04:00
Chris Mason
8fd17795b2 Btrfs: early fsync support 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-19 21:01:03 -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
70b2befd0c Btrfs: rework csums and extent item ordering 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-17 15:39:32 -04:00
Chris Mason
b4100d6424 Btrfs: add a device id to device items 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-12 12:14:00 -04:00
Chris Mason
8352d8a473 Btrfs: add disk ioctl, mostly working 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-12 10:43:05 -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
0bd93ba022 Btrfs: early support for multiple devices 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-11 13:57:44 -04:00
Chris Mason
2619ba1f0f Btrfs: subvolumes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-10 16:58:11 -04:00
Chris Mason
1b05da2ee6 Btrfs: drop the inode map tree 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-10 12:13:09 -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
0f7d52f443 Btrfs: groundwork for subvolume and snapshot roots 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-09 10:42:37 -04:00
Chris Mason
d6e4a428eb Btrfs: start of support for many FS volumes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-06 15:37:36 -04:00
Chris Mason
5be6f7f174 Btrfs: dirindex optimizations 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-05 13:35:25 -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
9d64272cd3 Btrfs: don't wait on uptodate buffers on read 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-03 11:43:19 -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
7cfcc17e7f Btrfs: corruptions fixed 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-04-02 14:53:59 -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
22b0ebda6c Btrfs: hunting slab corruption 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-30 08:47:31 -04:00
Chris Mason
f254e52c1c Btrfs: verify csums on read 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-29 15:15:27 -04:00
Chris Mason
30ae846748 Btrfs: btree address space fixes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-29 09:59:15 -04:00
Chris Mason
87cbda5c1f Btrfs: sha256 csums on metadata 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-28 19:44:27 -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
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
d561c025ee Btrfs: very minimal locking 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-23 19:47:49 -04:00
Chris Mason
7f5c15160e Add generation number to btrfs_header, readdir fixes, hash collision fixes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-23 15:56:19 -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
79154b1b5b Btrfs: transaction rework 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-22 15:59:16 -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
293ffd5fd3 Btrfs: change dir-test to insert inode_items 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-20 15:57:25 -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
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
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
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
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
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
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
77ce6846c4 Btrfs: period commit during initial fill in the random tester 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-02 10:06:43 -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
ed2ff2cba7 Btrfs: pretend page cache & commit code 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-03-01 18:59:40 -05:00
Chris Mason
c673024aba Btrfs: fixup dbfile perms 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-02-26 10:46:55 -05:00
Chris Mason
5de08d7d50 Btrfs: Break up ctree.c a little 
Extent fixes

Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-02-24 06:24:44 -05:00
Chris Mason
9a8dd1502d Btrfs: Block sized tree extents and extent deletion 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-02-23 08:38:36 -05:00
Chris Mason
5c680ed620 Btrfs: switch to early splits 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-02-22 11:39:13 -05:00
Chris Mason
cfaa72952f Btrfs: extent fixes 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-02-21 17:04:57 -05:00
Chris Mason
d97e63b69e Btrfs: early extent mapping support 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-02-20 16:40:44 -05:00
Chris Mason
eb60ceac0e Btrfs: Add backing store, memory management 
Signed-off-by: Chris Mason <chris.mason@oracle.com>
 2007-02-02 09:18:22 -05:00