fs/xfs/xfs_rtalloc.c

29  * Return whether there are any free extents in the size range given
87  * parameters in the mount structures.
130 	xfs_rtxlen_t		len)	/* in/out: summary block number */
216  * the length, if given.  Returns error; returns starting block in *rtx.
217  * The lengths are all in rtextents.
233 	xfs_rtxnum_t		end;	/* last rtext in chunk */
240 	 * Loop over all the extents starting in this bitmap block,
328  * Returns error; returns starting block in *rtx.
329  * The lengths are all in rtextents.
349 	 * Check if the range in question (for maxlen) is free.
387  * the length, if given.  The lengths are all in rtextents.
443 		 * starting in this bitmap block.
463 				 * Try to allocate an extent starting in
480 				 * we found in the realtime summary.
592  * the length, if given.  The lengths are all in rtextents.
639 	 * but make sure the specified minlen/maxlen are in the possible range
664 	xfs_fileoff_t		bno;		/* block number in file */
712 		 * Free any blocks freed up in the transaction, then commit.
796 	xfs_growfs_rt_t	*in)		/* growfs rt input struct */
831 	if (in->newblocks <= sbp->sb_rblocks)
835 	if (sbp->sb_rblocks > 0 && in->extsize != sbp->sb_rextsize)
839 	if (XFS_FSB_TO_B(mp, in->extsize) > XFS_MAX_RTEXTSIZE ||
840 	    XFS_FSB_TO_B(mp, in->extsize) < XFS_MIN_RTEXTSIZE)
847 	nrblocks = in->newblocks;
852 	 * Read in the last block of the device, make sure it exists.
865 	do_div(nrextents, in->extsize);
928 		nsbp->sb_rextsize = in->extsize;
1016 		 * Mark more blocks free in the superblock.
1065  * Initialize realtime fields in the mount structure.
1072 	struct xfs_sb		*sbp;	/* filesystem superblock copy in mount */
1126  * Callers must ensure that there is no other activity in the filesystem.
1150  * Read in the bmbt of an rt metadata inode so that we never have to load them
1152  * an empty transaction to avoid deadlocking on loops in the bmbt.
1241  * Use the sequence number stored in the atime field of the bitmap inode.
1257 	struct timespec64	ts;		/* timespec in inode */
1360 	 * Set ralen to be the actual requested length in rtextents.
1388 		 * extent that will space things out in the rt area.
1399 	 * perfectly aligned, otherwise it will just get us in trouble.