Cross Reference: /src/sys/fs/efs/efs

History log of /src/sys/fs/efs/efs_extent.h
Revision	Date	Author	Comments
1.3	04-Jul-2007	rumble	branches: 1.3.2; 1.3.12; Additional fixes/enhancements: 1) Comply with the way buffercache(9) is intended to be used. Now we read in single blocks of EFS_BB_SIZE, never taking in variable length extents with a single bread() call. 2) Handle symlinks with more than one extent. There's no reason for this to ever happen, but it's handled now. 3) Finally, add a hint to our iteration initialiser so we can start from the desired offset, rather than naively looping through from the beginning each time. Since we can binary search the correct location quickly, this improves large sequential reads by about 40% with 128MB files. Improvement should increase with file size.
1.2	30-Jun-2007	rumble	Additional documentation on extents and some artificial limitations SGI has introduced (and changed in backwards-incompatible ways) over the years.
1.1	29-Jun-2007	rumble	Add read-only support for SGI's Extent File System. Reviewed by pooka@.
1.3.12.2	03-Sep-2007	yamt	sync with head.
1.3.12.1	04-Jul-2007	yamt	file efs_extent.h was added on branch yamt-lazymbuf on 2007-09-03 14:40:09 +0000
1.3.2.2	15-Jul-2007	ad	Sync with head.
1.3.2.1	04-Jul-2007	ad	file efs_extent.h was added on branch vmlocking on 2007-07-15 16:15:22 +0000

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