- 25 Sep, 2008 40 commits
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Chris Mason authored
Signed-off-by:Chris Mason <chris.mason@oracle.com>
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Chris Mason authored
Signed-off-by: -
Chris Mason authored
Signed-off-by: -
Chris Mason authored
Signed-off-by: -
Chris Mason authored
Signed-off-by: -
Chris Mason authored
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 authored
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Chris Mason authored
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Chris Mason authored
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Chris Mason authored
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 authored
There were a few places that could cause duplicate extent insertion, this adjusts the code that creates holes to avoid it. lookup_extent_map is changed to correctly return all of the extents in a range, even when there are none matching at the start of the range. Signed-off-by: -
Chris Mason authored
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Yan authored
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Yan authored
test_range_bit doesn't properly handle the case: there's a hole at the end of the range and there's no other extent_state after the range. Signed-off-by: -
Yan authored
btrfs_find_free_objectid may return a used objectid due to arithmetic underflow. This bug may happen when parameter 'root' is tree root, so it may cause serious problems when creating snapshot or sub-volume. Signed-off-by: -
Chris Mason authored
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Chris Mason authored
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Yan authored
This patch fixes compile error on kernel-2.6.22 Signed-off-by: -
Yan authored
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Chris Mason authored
Using ilookup5 during data=ordered writeback could deadlock on I_LOCK. This saves a pointer to the inode instead. Signed-off-by: -
Chris Mason authored
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Chris Mason authored
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Chris Mason authored
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Chris Mason authored
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Chris Mason authored
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Chris Mason authored
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Chris Mason authored
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Yan authored
This patch adds readonly inode flag support. A file with this flag can't be modified, but can be deleted. Signed-off-by: -
Yan authored
ACLs are stored but not used for permission checks (yet) Signed-off-by: -
Chris Mason authored
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Chris Mason authored
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Chris Mason authored
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Chris Mason authored
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Yan authored
This patch adds NODATASUM & NODATACOW inode flags support. Signed-off-by: -
Chris Mason authored
While shrinking the FS, the allocation functions need to make sure they don't try to allocate bytes past the end of the FS. nodatacow needed an extra check to force cows when the existing extents are past the end of the FS. Signed-off-by: -
Chris Mason authored
This reada is generally not effective. Signed-off-by: -
Chris Mason authored
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Chris Mason authored
It is very difficult to create a consistent snapshot of the btree when other writers may update the btree before the commit is done. This changes the snapshot creation to happen during the commit, while no other updates are possible. Signed-off-by: -
Chris Mason authored
This forces file data extents down the disk along with the metadata that references them. The current implementation is fairly simple, and just writes out all of the dirty pages in an inode before the commit. Signed-off-by: -
Chris Mason authored
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