- 25 Sep, 2008 40 commits
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Yan authored
This patch adds NODATASUM & NODATACOW inode flags support. Signed-off-by:Chris Mason <chris.mason@oracle.com>
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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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Chris Mason authored
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Chris Mason authored
The shrinking code used btrfs_next_leaf to find the next item, but this does not cow the blocks it touches. This fix calls search_slot after finding the next item to do appropriate cow and balancing. Signed-off-by: -
Chris Mason authored
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Chris Mason authored
Some programs (python) do rwm cycles at the granularity returned by stat. Signed-off-by: -
Yan authored
The patch fixes the overlapping extent issue in shrink_extent_tree. It checks whether there is an overlapping extent by using find_previous_extent. If there is an overlapping extent, it setups key.objectid and cur_byte properly. --- Signed-off-by: -
Yan authored
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Chris Mason authored
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Chris Mason authored
This is intended to prevent accidentally filling the drive. A determined user can still make things oops. It includes some accounting of the current bytes under delayed allocation, but this will change as things get optimized Signed-off-by: -
Chris Mason authored
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Chris Mason authored
Yan Zheng noticed the offset into the extent was incorrectly being added to the extent start before trying to find it in the extent allocation tree. Signed-off-by: -
Chris Mason authored
find_lock_delalloc_range could exit out too early Signed-off-by: -
Chris Mason authored
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Chris Mason authored
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Chris Mason authored
A number of workloads do not require copy on write data or checksumming. mount -o nodatasum to disable checksums and -o nodatacow to disable both copy on write and checksumming. In nodatacow mode, copy on write is still performed when a given extent is under snapshot. Signed-off-by: -
Chris Mason authored
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Yan authored
One of my old patches introduces a new bug to btrfs_drop_extents(changeset 275). Inline extents are not truncated properly when "extent_end == end", it can trigger the BUG_ON at file.c:600. I hope I don't introduce new bug this time. --- Signed-off-by: -
Chris Mason authored
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