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| author | Chris Mason <chris.mason@oracle.com> | 2008-06-25 16:01:30 -0400 |
|---|---|---|
| committer | Chris Mason <chris.mason@oracle.com> | 2008-09-25 11:04:03 -0400 |
| commit | 051e1b9f748ae673b7325d3fc049bb838606cffa (patch) | |
| tree | 82d9d98a56ed776df8eee270dc9e11d7f0eb9d56 /fs/btrfs/disk-io.c | |
| parent | a213501153fd66e2359e091b1612841305ba6551 (diff) | |
| download | op-kernel-dev-051e1b9f748ae673b7325d3fc049bb838606cffa.zip op-kernel-dev-051e1b9f748ae673b7325d3fc049bb838606cffa.tar.gz | |
Drop locks in btrfs_search_slot when reading a tree block.
One lock per btree block can make for significant congestion if everyone
has to wait for IO at the high levels of the btree. This drops
locks held by a path when doing reads during a tree search.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'fs/btrfs/disk-io.c')
| -rw-r--r-- | fs/btrfs/disk-io.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index f638803..ffc363d 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1684,6 +1684,7 @@ void btrfs_throttle(struct btrfs_root *root) #else blk_congestion_wait(WRITE, HZ/20); #endif + } } |
