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(parent: dc6e8d6) | patch
jbd2: optimize jbd2_log_do_checkpoint() a bit
authorJan Kara <jack@suse.cz>
Thu, 4 Sep 2014 22:09:29 +0000 (18:09 -0400)
committerTheodore Ts'o <tytso@mit.edu>
Thu, 4 Sep 2014 22:09:29 +0000 (18:09 -0400)
commit0e5ecf0a762627b949141df1d83094a9b0eb54a8
tree14fa8da08990a77cc51bdb08fce460861a5e2c9atree | snapshot (tar.gz zip)
parentdc6e8d669cf5cb3ff84707c372c0a2a8a5e80845commit | diff
jbd2: optimize jbd2_log_do_checkpoint() a bit

When we discover written out buffer in transaction checkpoint list we
don't have to recheck validity of a transaction. Either this is the
last buffer in a transaction - and then we are done - or this isn't
and then we can just take another buffer from the checkpoint list
without dropping j_list_lock.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
fs/jbd2/checkpoint.c diff | blob | blame | history