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| /openbmc/linux/fs/btrfs/ |
| H A D | ioctl.c | 308d9800 Tue Mar 11 08:56:15 CDT 2014 Filipe Manana <fdmanana@gmail.com> Btrfs: cache extent states in defrag code path
When locking file ranges in the inode's io_tree, cache the first
extent state that belongs to the target range, so that when unlocking
the range we don't need to search in the io_tree again, reducing cpu
time and making and therefore holding the io_tree's lock for a shorter
period.
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>
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