tree d6039ae11b109ddb71e9724a46d54337535a2d6e
parent df3c1e9a05ff25aca9f54a6c08b77003e2e32bf1
author Theodore Ts'o <tytso@mit.edu> 1394323896 -0500
committer Theodore Ts'o <tytso@mit.edu> 1394323896 -0500

jbd2: don't hold j_state_lock while calling wake_up()

The j_state_lock is one of the hottest locks in the jbd2 layer and
thus one of its scalability bottlenecks.

We don't need to be holding the j_state_lock while we are calling
wake_up(&journal->j_wait_commit), so release the lock a little bit
earlier.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>