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Btrfs: more efficient io tree navigation on wait_extent_bit
authorFilipe Manana <fdmanana@gmail.com>
Mon, 31 Mar 2014 13:53:25 +0000 (14:53 +0100)
committerChris Mason <clm@fb.com>
Mon, 7 Apr 2014 16:08:47 +0000 (09:08 -0700)
commitc50d3e71c3d0378bcc9e116f48dab4148854a7bb
tree97d715d396f0c2134f6ec85b0d1c5805d1a601c9tree | snapshot
parentc715e155c94ba0b3657820d676ec3c7213a5ce81commit | diff
Btrfs: more efficient io tree navigation on wait_extent_bit

If we don't reschedule use rb_next to find the next extent state
instead of a full tree search, which is more efficient and safe
since we didn't release the io tree's lock.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Chris Mason <clm@fb.com>
fs/btrfs/extent_io.c diff | blob | history
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