xfs/scrub/bmap.c

140 /* Look for a corresponding rmap for this irec. */
147 	struct xfs_rmap_irec	*rmap)
171 	 * range rmap lookup to make sure we get the correct owner/offset.
175 				owner, offset, rflags, rmap, &has_rmap);
178 				owner, offset, rflags, rmap, &has_rmap);
196 	struct xfs_rmap_irec	rmap;
203 	/* Find the rmap record for this irec. */
204 	if (!xchk_bmap_get_rmap(info, irec, agbno, owner, &rmap))
208 	 * The rmap must be an exact match for this incore file mapping record,
211 	if (rmap.rm_startblock != agbno)
215 	rmap_end = (unsigned long long)rmap.rm_startblock + rmap.rm_blockcount;
221 	if (rmap.rm_offset != irec->br_startoff)
225 	rmap_end = (unsigned long long)rmap.rm_offset + rmap.rm_blockcount;
231 	if (rmap.rm_owner != owner)
237 	 * the rmap.  Note that the (in-memory) CoW fork distinguishes between
238 	 * unwritten and written extents, but we don't track that in the rmap
243 	    !!(rmap.rm_flags & XFS_RMAP_UNWRITTEN))
248 	    !!(rmap.rm_flags & XFS_RMAP_ATTR_FORK))
251 	if (rmap.rm_flags & XFS_RMAP_BMBT_BLOCK)
263 	struct xfs_rmap_irec	rmap;
270 	/* Find the rmap record for this irec. */
271 	if (!xchk_bmap_get_rmap(info, irec, agbno, owner, &rmap))
275 	 * CoW staging extents are owned by the refcount btree, so the rmap
279 	if (rmap.rm_startblock > agbno)
283 	rmap_end = (unsigned long long)rmap.rm_startblock + rmap.rm_blockcount;
289 	if (rmap.rm_owner != owner)
296 	 * the rmap records because the blocks are owned (on-disk) by the
299 	if (rmap.rm_flags & XFS_RMAP_ATTR_FORK)
302 	if (rmap.rm_flags & XFS_RMAP_BMBT_BLOCK)
305 	if (rmap.rm_flags & XFS_RMAP_UNWRITTEN)
556 /* Can we find bmaps that fit this rmap? */
594 	 * However, rmap extent record lengths are constrained only by AG
596 	 * entire rmap is covered by bmbt records.
630 /* Make sure each rmap has a corresponding bmbt entry. */
713 	/* Don't support realtime rmap checks yet. */
736  * Decide if we want to walk every rmap btree in the fs to make sure that each
737  * rmap for this file fork has corresponding bmbt entries.
758 /* Make sure each rmap has a corresponding bmbt entry. */
988 	 * reduces runtime.  Cross referencing with the rmap is simpler because
989 	 * the rmap must match the combined mapping exactly.