| Age | Commit message (Collapse) | Author | |
|---|---|---|---|
| 2008-09-25 | Btrfs: During deletes and truncate, remove many items at once from the tree | Chris Mason | |
| Signed-off-by: Chris Mason <chris.mason@oracle.com> | |||
| 2008-09-25 | Btrfs: extent_io and extent_state optimizations | Chris Mason | |
| The end_bio routines are changed to take a pointer to the extent state struct, and the state tree is walked in order to set/clear appropriate bits as IO completes. This greatly reduces the number of rbtree searches done by the end_bio handlers, and reduces lock contention. The extent_io releasepage function is changed to avoid expensive searches for locked state. Signed-off-by: Chris Mason <chris.mason@oracle.com> | |||
| 2008-09-25 | Btrfs: Split the extent_map code into two parts | Chris Mason | |
| There is now extent_map for mapping offsets in the file to disk and extent_io for state tracking, IO submission and extent_bufers. The new extent_map code shifts from [start,end] pairs to [start,len], and pushes the locking out into the caller. This allows a few performance optimizations and is easier to use. A number of extent_map usage bugs were fixed, mostly with failing to remove extent_map entries when changing the file. Signed-off-by: Chris Mason <chris.mason@oracle.com> | |||
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