ext4: simplify list handling in ext4_do_flush_completed_IO()
authorJan Kara <jack@suse.cz>
Mon, 28 Jan 2013 14:49:15 +0000 (09:49 -0500)
committerTheodore Ts'o <tytso@mit.edu>
Mon, 28 Jan 2013 14:49:15 +0000 (09:49 -0500)
commit002bd7fa3ac7441bdb36df67b2c64bc8c1be5360
tree97b12473041ce1aea805aadb667b17028d99458d
parent84c17543ab5685d950da73209df0ecda26e72d3b
ext4: simplify list handling in ext4_do_flush_completed_IO()

The function splices i_completed_io_list to its private list
first.  From that moment on we don't need any lock for working with
io_end structures because all io_end structure on the list are only
our own. So we can remove the other two lists in the function and free
io_end immediately after we are done with it.

CC: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
fs/ext4/page-io.c