- 25 9月, 2008 15 次提交
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由 Chris Mason 提交于
Data checksumming is done right before the bio is sent down the IO stack, which means a single bio might span more than one ordered extent. In this case, the checksumming data is split between two ordered extents. Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
The old data=ordered code would force commit to wait until all the data extents from the transaction were fully on disk. This introduced large latencies into the commit and stalled new writers in the transaction for a long time. The new code changes the way data allocations and extents work: * When delayed allocation is filled, data extents are reserved, and the extent bit EXTENT_ORDERED is set on the entire range of the extent. A struct btrfs_ordered_extent is allocated an inserted into a per-inode rbtree to track the pending extents. * As each page is written EXTENT_ORDERED is cleared on the bytes corresponding to that page. * When all of the bytes corresponding to a single struct btrfs_ordered_extent are written, The previously reserved extent is inserted into the FS btree and into the extent allocation trees. The checksums for the file data are also updated. Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Sage Weil 提交于
Add a new ioctl to clone file data Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
This significantly improves streaming write performance by allowing concurrency in the data checksumming. Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
When we checkum file data during writepage, the checksumming is done one page at a time, making it difficult to do bulk metadata modifications to insert checksums for large ranges of the file at once. This patch changes btrfs to checksum on a per-bio basis instead. The bios are checksummed before they are handed off to the block layer, so each bio is contiguous and only has pages from the same inode. Checksumming on a bio basis allows us to insert and modify the file checksum items in large groups. It also allows the checksumming to be done more easily by async worker threads. Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
The fixes do a number of things: 1) Most btrfs_drop_extent callers will try to leave the inline extents in place. It can truncate bytes off the beginning of the inline extent if required. 2) writepage can now update the inline extent, allowing mmap writes to go directly into the inline extent. 3) btrfs_truncate_in_transaction truncates inline extents 4) extent_map.c fixed to not merge inline extent mappings and hole mappings together Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Yan 提交于
Execution should goto label 'insert' when 'btrfs_next_leaf' return a non-zero value, otherwise the parameter 'slot' for 'btrfs_item_key_to_cpu' may be out of bounds. The original codes jump to label 'insert' only when 'btrfs_next_leaf' return a negative value. Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
This reduces the number of calls to btrfs_extend_item and greatly lowers the cpu usage while writing large files. Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 11 7月, 2007 1 次提交
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由 Zach Brown 提交于
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: NZach Brown <zach.brown@oracle.com> Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 23 6月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 18 6月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 16 6月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 14 6月, 2007 1 次提交
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由 Aneesh 提交于
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: NChris Mason <chris.mason@oracle.com>
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- 12 6月, 2007 3 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 30 5月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 25 5月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 11 5月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 20 4月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 19 4月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 18 4月, 2007 2 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 16 4月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 11 4月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 03 4月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 02 4月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 31 3月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 30 3月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 27 3月, 2007 3 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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- 21 3月, 2007 1 次提交
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由 Chris Mason 提交于
Signed-off-by: NChris Mason <chris.mason@oracle.com>
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