Module Name: src Committed By: hannken Date: Mon Jan 21 09:14:01 UTC 2013
Modified Files: src/sys/kern: vfs_trans.c Log Message: Replace the rwlock based implementation with passive serialization from pserialize(9) and mutex / condvar. The fast paths (fstrans_start/fstrans_done on a file system not suspended or suspending and fscow_run with no change pending) now run without locks or other atomic operations. Suspension and cow handler insertion and removal is done with mutex / condvars. The API remains unchanged. To generate a diff of this commit: cvs rdiff -u -r1.25 -r1.26 src/sys/kern/vfs_trans.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.