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AHA - Adaptive Honeypot Alternative (historical repository)
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Chris Mason e02119d5a7 Btrfs: Add a write ahead tree log to optimize synchronous operations 
File syncs and directory syncs are optimized by copying their
items into a special (copy-on-write) log tree.  There is one log tree per
subvolume and the btrfs super block points to a tree of log tree roots.

After a crash, items are copied out of the log tree and back into the
subvolume.  See tree-log.c for all the details.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
2008-09-25 11:04:07 -04:00
fs/btrfs Btrfs: Add a write ahead tree log to optimize synchronous operations 2008-09-25 11:04:07 -04:00