diff options
Diffstat (limited to '')
| -rw-r--r-- | fs/xfs/scrub/agb_bitmap.h | 5 | ||||
| -rw-r--r-- | fs/xfs/scrub/bitmap.c | 14 | ||||
| -rw-r--r-- | fs/xfs/scrub/bitmap.h | 2 |
3 files changed, 21 insertions, 0 deletions
diff --git a/fs/xfs/scrub/agb_bitmap.h b/fs/xfs/scrub/agb_bitmap.h index ed08f76ff4f3..e488e1f4f63d 100644 --- a/fs/xfs/scrub/agb_bitmap.h +++ b/fs/xfs/scrub/agb_bitmap.h @@ -65,4 +65,9 @@ int xagb_bitmap_set_btblocks(struct xagb_bitmap *bitmap, int xagb_bitmap_set_btcur_path(struct xagb_bitmap *bitmap, struct xfs_btree_cur *cur); +static inline uint32_t xagb_bitmap_count_set_regions(struct xagb_bitmap *b) +{ + return xbitmap32_count_set_regions(&b->agbitmap); +} + #endif /* __XFS_SCRUB_AGB_BITMAP_H__ */ diff --git a/fs/xfs/scrub/bitmap.c b/fs/xfs/scrub/bitmap.c index 1449bb5262d9..0cb8d43912a8 100644 --- a/fs/xfs/scrub/bitmap.c +++ b/fs/xfs/scrub/bitmap.c @@ -566,3 +566,17 @@ xbitmap32_test( *len = bn->bn_start - start; return false; } + +/* Count the number of set regions in this bitmap. */ +uint32_t +xbitmap32_count_set_regions( + struct xbitmap32 *bitmap) +{ + struct xbitmap32_node *bn; + uint32_t nr = 0; + + for_each_xbitmap32_extent(bn, bitmap) + nr++; + + return nr; +} diff --git a/fs/xfs/scrub/bitmap.h b/fs/xfs/scrub/bitmap.h index 2df8911606d6..710c1ac5e323 100644 --- a/fs/xfs/scrub/bitmap.h +++ b/fs/xfs/scrub/bitmap.h @@ -62,4 +62,6 @@ int xbitmap32_walk(struct xbitmap32 *bitmap, xbitmap32_walk_fn fn, bool xbitmap32_empty(struct xbitmap32 *bitmap); bool xbitmap32_test(struct xbitmap32 *bitmap, uint32_t start, uint32_t *len); +uint32_t xbitmap32_count_set_regions(struct xbitmap32 *bitmap); + #endif /* __XFS_SCRUB_BITMAP_H__ */ |