fs/xfs/xfs_iwalk.c

40  * therefore cache the inobt records in kernel memory and only call the walk
41  * function when our memory buffer is full.  @nr_recs is the number of records
45  * allocated inodes, as the inobt records may be stale by the time they are
63 	/* Array of inobt records we cache. */
84 	/* Skip empty inobt records? */
161 	/* Allocate a prefetch buffer for inobt records. */  in xfs_iwalk_alloc()
248  * Set ourselves up for walking inobt records starting from a given point in
288 	 * the record into our cache, and then see if there are more records.  in xfs_iwalk_ag_start()
291 	 * records.  in xfs_iwalk_ag_start()
298 	 * If the LE lookup at @agino yields no records, jump ahead to the  in xfs_iwalk_ag_start()
299 	 * inobt cursor increment to see if there are more records to process.  in xfs_iwalk_ag_start()
344  * run callbacks on the cached inobt records.  When we're done, restore the
348  * try for more inode records.
458 		 * If there's space in the buffer for more records, increment  in xfs_iwalk_ag()
470 		 * function on the cached records.  The run_callbacks function  in xfs_iwalk_ag()
481 	/* Walk the unprocessed records in the cache. */  in xfs_iwalk_ag()
497  * Given the number of inodes to prefetch, set the number of inobt records that
522 	 * estimate of the number of inobt records to cache, we require a  in xfs_iwalk_prefetch()
536 	 * Allocate enough space to prefetch at least two inobt records so that  in xfs_iwalk_prefetch()
546  * @data.  @max_prefetch controls how many inobt records' worth of inodes we
692  * Allow callers to cache up to a page's worth of inobt records.  This reflects
694  * itself do anything with the inobt records, we can set a fairly high limit
701  * Given the number of records that the user wanted, set the number of inobt
702  * records that we buffer in memory.  Set the maximum if @inobt_records == 0.
709 	 * If the caller didn't tell us the number of inobt records they  in xfs_inobt_walk_prefetch()
716 	 * Allocate enough space to prefetch at least two inobt records so that  in xfs_inobt_walk_prefetch()
730  * Walk all inode btree records in the filesystem starting from @startino.  The
732  * record and @data.  @max_prefetch controls how many inobt records we try to