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author | Chris Mason <chris.mason@oracle.com> | 2011-03-23 14:54:42 -0400 |
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committer | root <Chris Mason chris.mason@oracle.com> | 2011-03-28 05:37:22 -0400 |
commit | 240f62c8756df285da11469259b3900f32883168 (patch) | |
tree | eb973ef95389a9511c137c7c26248dfd04a2495f /include | |
parent | c0da7aa1a2d8fcafe271a7077599253c8ed94bb2 (diff) | |
download | op-kernel-dev-240f62c8756df285da11469259b3900f32883168.zip op-kernel-dev-240f62c8756df285da11469259b3900f32883168.tar.gz |
Btrfs: use RCU instead of a spinlock to protect the root node
The pointer to the extent buffer for the root of each tree
is protected by a spinlock so that we can safely read the pointer
and take a reference on the extent buffer.
But now that the extent buffers are freed via RCU, we can safely
use rcu_read_lock instead.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
Diffstat (limited to 'include')
0 files changed, 0 insertions, 0 deletions