ufs/ffs/ffs_softdep.c

1048  * Merge two jsegdeps keeping only the oldest one as newer references
1052 jsegdep_merge(struct jsegdep *one, struct jsegdep *two)
1057 		return (one);
1059 	if (one->jd_seg->js_seq > two->jd_seg->js_seq) {
1060 		swp = one;
1061 		one = two;
1067 	return (one);
1071  * If two freedeps are compatible free one to reduce list size.
1074 freedep_merge(struct freedep *one, struct freedep *two)
1077 		return (one);
1079 	if (one->fd_freework == two->fd_freework) {
1083 	return (one);
1087  * Move journal work from one list to another.  Duplicate freedeps and
1471 			 * different one on out next try.
1491  * The following routine is the only one that removes items
1609 		 * Never allow processing to run for more than one
1747  * Process one item on the worklist.
1847  * Move dependencies from one buffer to another.
2062  * allocates a new structure if an existing one is not found.
2533 	 * by setting vfs.ffs.compute_summary_at_mount to one.
2779 		printf("Failed to find journal.  Use tunefs to create one\n");
3540 		 * Write this one buffer and continue.
4553  * Release one reference to a jseg and free it if the count reaches 0.  This
4966  * after a power failure, one must (conservatively) guarantee that the
4987  * sector.  If a disk write is interrupted (e.g., by power failure), one may
5169  * If none exists, create one. The buffer must be locked when
5436 	 * one of them to fix the bits when the cg write completes.
5447  * Replace an old allocdirect dependency with a newer one.
5476 	 * The new dependency gains the old one's freefrag, and the
5477 	 * old one gets the new one and then immediately puts it on
5984  * by one of the two routines above.
6013 	 * there is, merge the old dependency into the new one.  This happens
6414 	 * Subtracting one indirects worth of blocks for each pass
6415 	 * acknowledges one of each pointed to by the inode.
7484 	/* Should only ever be one item in the list. */
8084 	 	 * indirects on devvp should only ever have one dependency.
8657  * Move the mkdir dependencies and journal work from one diradd to another
8659  * completing as the old name did.  Directories can only have one valid link
8660  * at a time so one must be canonical.
9131 	 * dependencies.  We will always have one for the link and
9132 	 * when doing directories we will always have one more for dot.
9605 		 * we lock the right one.  If both the superblock and an
11063 	 * allocdirects after one whose ad_oldblkno claims a fragment as
13390 	 * that might deadlock against one that we try to clean. So,
13491  * Flush out a directory with at least one removal dependency in an effort to