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-rw-r--r--fs/xfs/scrub/bitmap.c467
1 files changed, 327 insertions, 140 deletions
diff --git a/fs/xfs/scrub/bitmap.c b/fs/xfs/scrub/bitmap.c
index e0c89a9a0c..1449bb5262 100644
--- a/fs/xfs/scrub/bitmap.c
+++ b/fs/xfs/scrub/bitmap.c
@@ -16,7 +16,9 @@
#include <linux/interval_tree_generic.h>
-struct xbitmap_node {
+/* u64 bitmap */
+
+struct xbitmap64_node {
struct rb_node bn_rbnode;
/* First set bit of this interval and subtree. */
@@ -39,72 +41,72 @@ struct xbitmap_node {
* forward-declare them anyway for clarity.
*/
static inline void
-xbitmap_tree_insert(struct xbitmap_node *node, struct rb_root_cached *root);
+xbitmap64_tree_insert(struct xbitmap64_node *node, struct rb_root_cached *root);
static inline void
-xbitmap_tree_remove(struct xbitmap_node *node, struct rb_root_cached *root);
+xbitmap64_tree_remove(struct xbitmap64_node *node, struct rb_root_cached *root);
-static inline struct xbitmap_node *
-xbitmap_tree_iter_first(struct rb_root_cached *root, uint64_t start,
+static inline struct xbitmap64_node *
+xbitmap64_tree_iter_first(struct rb_root_cached *root, uint64_t start,
uint64_t last);
-static inline struct xbitmap_node *
-xbitmap_tree_iter_next(struct xbitmap_node *node, uint64_t start,
+static inline struct xbitmap64_node *
+xbitmap64_tree_iter_next(struct xbitmap64_node *node, uint64_t start,
uint64_t last);
-INTERVAL_TREE_DEFINE(struct xbitmap_node, bn_rbnode, uint64_t,
- __bn_subtree_last, START, LAST, static inline, xbitmap_tree)
+INTERVAL_TREE_DEFINE(struct xbitmap64_node, bn_rbnode, uint64_t,
+ __bn_subtree_last, START, LAST, static inline, xbitmap64_tree)
/* Iterate each interval of a bitmap. Do not change the bitmap. */
-#define for_each_xbitmap_extent(bn, bitmap) \
+#define for_each_xbitmap64_extent(bn, bitmap) \
for ((bn) = rb_entry_safe(rb_first(&(bitmap)->xb_root.rb_root), \
- struct xbitmap_node, bn_rbnode); \
+ struct xbitmap64_node, bn_rbnode); \
(bn) != NULL; \
(bn) = rb_entry_safe(rb_next(&(bn)->bn_rbnode), \
- struct xbitmap_node, bn_rbnode))
+ struct xbitmap64_node, bn_rbnode))
/* Clear a range of this bitmap. */
int
-xbitmap_clear(
- struct xbitmap *bitmap,
+xbitmap64_clear(
+ struct xbitmap64 *bitmap,
uint64_t start,
uint64_t len)
{
- struct xbitmap_node *bn;
- struct xbitmap_node *new_bn;
+ struct xbitmap64_node *bn;
+ struct xbitmap64_node *new_bn;
uint64_t last = start + len - 1;
- while ((bn = xbitmap_tree_iter_first(&bitmap->xb_root, start, last))) {
+ while ((bn = xbitmap64_tree_iter_first(&bitmap->xb_root, start, last))) {
if (bn->bn_start < start && bn->bn_last > last) {
uint64_t old_last = bn->bn_last;
/* overlaps with the entire clearing range */
- xbitmap_tree_remove(bn, &bitmap->xb_root);
+ xbitmap64_tree_remove(bn, &bitmap->xb_root);
bn->bn_last = start - 1;
- xbitmap_tree_insert(bn, &bitmap->xb_root);
+ xbitmap64_tree_insert(bn, &bitmap->xb_root);
/* add an extent */
- new_bn = kmalloc(sizeof(struct xbitmap_node),
+ new_bn = kmalloc(sizeof(struct xbitmap64_node),
XCHK_GFP_FLAGS);
if (!new_bn)
return -ENOMEM;
new_bn->bn_start = last + 1;
new_bn->bn_last = old_last;
- xbitmap_tree_insert(new_bn, &bitmap->xb_root);
+ xbitmap64_tree_insert(new_bn, &bitmap->xb_root);
} else if (bn->bn_start < start) {
/* overlaps with the left side of the clearing range */
- xbitmap_tree_remove(bn, &bitmap->xb_root);
+ xbitmap64_tree_remove(bn, &bitmap->xb_root);
bn->bn_last = start - 1;
- xbitmap_tree_insert(bn, &bitmap->xb_root);
+ xbitmap64_tree_insert(bn, &bitmap->xb_root);
} else if (bn->bn_last > last) {
/* overlaps with the right side of the clearing range */
- xbitmap_tree_remove(bn, &bitmap->xb_root);
+ xbitmap64_tree_remove(bn, &bitmap->xb_root);
bn->bn_start = last + 1;
- xbitmap_tree_insert(bn, &bitmap->xb_root);
+ xbitmap64_tree_insert(bn, &bitmap->xb_root);
break;
} else {
/* in the middle of the clearing range */
- xbitmap_tree_remove(bn, &bitmap->xb_root);
+ xbitmap64_tree_remove(bn, &bitmap->xb_root);
kfree(bn);
}
}
@@ -114,59 +116,59 @@ xbitmap_clear(
/* Set a range of this bitmap. */
int
-xbitmap_set(
- struct xbitmap *bitmap,
+xbitmap64_set(
+ struct xbitmap64 *bitmap,
uint64_t start,
uint64_t len)
{
- struct xbitmap_node *left;
- struct xbitmap_node *right;
+ struct xbitmap64_node *left;
+ struct xbitmap64_node *right;
uint64_t last = start + len - 1;
int error;
/* Is this whole range already set? */
- left = xbitmap_tree_iter_first(&bitmap->xb_root, start, last);
+ left = xbitmap64_tree_iter_first(&bitmap->xb_root, start, last);
if (left && left->bn_start <= start && left->bn_last >= last)
return 0;
/* Clear out everything in the range we want to set. */
- error = xbitmap_clear(bitmap, start, len);
+ error = xbitmap64_clear(bitmap, start, len);
if (error)
return error;
/* Do we have a left-adjacent extent? */
- left = xbitmap_tree_iter_first(&bitmap->xb_root, start - 1, start - 1);
+ left = xbitmap64_tree_iter_first(&bitmap->xb_root, start - 1, start - 1);
ASSERT(!left || left->bn_last + 1 == start);
/* Do we have a right-adjacent extent? */
- right = xbitmap_tree_iter_first(&bitmap->xb_root, last + 1, last + 1);
+ right = xbitmap64_tree_iter_first(&bitmap->xb_root, last + 1, last + 1);
ASSERT(!right || right->bn_start == last + 1);
if (left && right) {
/* combine left and right adjacent extent */
- xbitmap_tree_remove(left, &bitmap->xb_root);
- xbitmap_tree_remove(right, &bitmap->xb_root);
+ xbitmap64_tree_remove(left, &bitmap->xb_root);
+ xbitmap64_tree_remove(right, &bitmap->xb_root);
left->bn_last = right->bn_last;
- xbitmap_tree_insert(left, &bitmap->xb_root);
+ xbitmap64_tree_insert(left, &bitmap->xb_root);
kfree(right);
} else if (left) {
/* combine with left extent */
- xbitmap_tree_remove(left, &bitmap->xb_root);
+ xbitmap64_tree_remove(left, &bitmap->xb_root);
left->bn_last = last;
- xbitmap_tree_insert(left, &bitmap->xb_root);
+ xbitmap64_tree_insert(left, &bitmap->xb_root);
} else if (right) {
/* combine with right extent */
- xbitmap_tree_remove(right, &bitmap->xb_root);
+ xbitmap64_tree_remove(right, &bitmap->xb_root);
right->bn_start = start;
- xbitmap_tree_insert(right, &bitmap->xb_root);
+ xbitmap64_tree_insert(right, &bitmap->xb_root);
} else {
/* add an extent */
- left = kmalloc(sizeof(struct xbitmap_node), XCHK_GFP_FLAGS);
+ left = kmalloc(sizeof(struct xbitmap64_node), XCHK_GFP_FLAGS);
if (!left)
return -ENOMEM;
left->bn_start = start;
left->bn_last = last;
- xbitmap_tree_insert(left, &bitmap->xb_root);
+ xbitmap64_tree_insert(left, &bitmap->xb_root);
}
return 0;
@@ -174,21 +176,21 @@ xbitmap_set(
/* Free everything related to this bitmap. */
void
-xbitmap_destroy(
- struct xbitmap *bitmap)
+xbitmap64_destroy(
+ struct xbitmap64 *bitmap)
{
- struct xbitmap_node *bn;
+ struct xbitmap64_node *bn;
- while ((bn = xbitmap_tree_iter_first(&bitmap->xb_root, 0, -1ULL))) {
- xbitmap_tree_remove(bn, &bitmap->xb_root);
+ while ((bn = xbitmap64_tree_iter_first(&bitmap->xb_root, 0, -1ULL))) {
+ xbitmap64_tree_remove(bn, &bitmap->xb_root);
kfree(bn);
}
}
/* Set up a per-AG block bitmap. */
void
-xbitmap_init(
- struct xbitmap *bitmap)
+xbitmap64_init(
+ struct xbitmap64 *bitmap)
{
bitmap->xb_root = RB_ROOT_CACHED;
}
@@ -208,18 +210,18 @@ xbitmap_init(
* This is the logical equivalent of bitmap &= ~sub.
*/
int
-xbitmap_disunion(
- struct xbitmap *bitmap,
- struct xbitmap *sub)
+xbitmap64_disunion(
+ struct xbitmap64 *bitmap,
+ struct xbitmap64 *sub)
{
- struct xbitmap_node *bn;
+ struct xbitmap64_node *bn;
int error;
- if (xbitmap_empty(bitmap) || xbitmap_empty(sub))
+ if (xbitmap64_empty(bitmap) || xbitmap64_empty(sub))
return 0;
- for_each_xbitmap_extent(bn, sub) {
- error = xbitmap_clear(bitmap, bn->bn_start,
+ for_each_xbitmap64_extent(bn, sub) {
+ error = xbitmap64_clear(bitmap, bn->bn_start,
bn->bn_last - bn->bn_start + 1);
if (error)
return error;
@@ -228,88 +230,273 @@ xbitmap_disunion(
return 0;
}
+/* How many bits are set in this bitmap? */
+uint64_t
+xbitmap64_hweight(
+ struct xbitmap64 *bitmap)
+{
+ struct xbitmap64_node *bn;
+ uint64_t ret = 0;
+
+ for_each_xbitmap64_extent(bn, bitmap)
+ ret += bn->bn_last - bn->bn_start + 1;
+
+ return ret;
+}
+
+/* Call a function for every run of set bits in this bitmap. */
+int
+xbitmap64_walk(
+ struct xbitmap64 *bitmap,
+ xbitmap64_walk_fn fn,
+ void *priv)
+{
+ struct xbitmap64_node *bn;
+ int error = 0;
+
+ for_each_xbitmap64_extent(bn, bitmap) {
+ error = fn(bn->bn_start, bn->bn_last - bn->bn_start + 1, priv);
+ if (error)
+ break;
+ }
+
+ return error;
+}
+
+/* Does this bitmap have no bits set at all? */
+bool
+xbitmap64_empty(
+ struct xbitmap64 *bitmap)
+{
+ return bitmap->xb_root.rb_root.rb_node == NULL;
+}
+
+/* Is the start of the range set or clear? And for how long? */
+bool
+xbitmap64_test(
+ struct xbitmap64 *bitmap,
+ uint64_t start,
+ uint64_t *len)
+{
+ struct xbitmap64_node *bn;
+ uint64_t last = start + *len - 1;
+
+ bn = xbitmap64_tree_iter_first(&bitmap->xb_root, start, last);
+ if (!bn)
+ return false;
+ if (bn->bn_start <= start) {
+ if (bn->bn_last < last)
+ *len = bn->bn_last - start + 1;
+ return true;
+ }
+ *len = bn->bn_start - start;
+ return false;
+}
+
+/* u32 bitmap */
+
+struct xbitmap32_node {
+ struct rb_node bn_rbnode;
+
+ /* First set bit of this interval and subtree. */
+ uint32_t bn_start;
+
+ /* Last set bit of this interval. */
+ uint32_t bn_last;
+
+ /* Last set bit of this subtree. Do not touch this. */
+ uint32_t __bn_subtree_last;
+};
+
+/* Define our own interval tree type with uint32_t parameters. */
+
/*
- * Record all btree blocks seen while iterating all records of a btree.
- *
- * We know that the btree query_all function starts at the left edge and walks
- * towards the right edge of the tree. Therefore, we know that we can walk up
- * the btree cursor towards the root; if the pointer for a given level points
- * to the first record/key in that block, we haven't seen this block before;
- * and therefore we need to remember that we saw this block in the btree.
- *
- * So if our btree is:
- *
- * 4
- * / | \
- * 1 2 3
- *
- * Pretend for this example that each leaf block has 100 btree records. For
- * the first btree record, we'll observe that bc_levels[0].ptr == 1, so we
- * record that we saw block 1. Then we observe that bc_levels[1].ptr == 1, so
- * we record block 4. The list is [1, 4].
- *
- * For the second btree record, we see that bc_levels[0].ptr == 2, so we exit
- * the loop. The list remains [1, 4].
- *
- * For the 101st btree record, we've moved onto leaf block 2. Now
- * bc_levels[0].ptr == 1 again, so we record that we saw block 2. We see that
- * bc_levels[1].ptr == 2, so we exit the loop. The list is now [1, 4, 2].
- *
- * For the 102nd record, bc_levels[0].ptr == 2, so we continue.
- *
- * For the 201st record, we've moved on to leaf block 3.
- * bc_levels[0].ptr == 1, so we add 3 to the list. Now it is [1, 4, 2, 3].
- *
- * For the 300th record we just exit, with the list being [1, 4, 2, 3].
+ * These functions are defined by the INTERVAL_TREE_DEFINE macro, but we'll
+ * forward-declare them anyway for clarity.
*/
+static inline void
+xbitmap32_tree_insert(struct xbitmap32_node *node, struct rb_root_cached *root);
-/* Mark a btree block to the agblock bitmap. */
-STATIC int
-xagb_bitmap_visit_btblock(
- struct xfs_btree_cur *cur,
- int level,
- void *priv)
+static inline void
+xbitmap32_tree_remove(struct xbitmap32_node *node, struct rb_root_cached *root);
+
+static inline struct xbitmap32_node *
+xbitmap32_tree_iter_first(struct rb_root_cached *root, uint32_t start,
+ uint32_t last);
+
+static inline struct xbitmap32_node *
+xbitmap32_tree_iter_next(struct xbitmap32_node *node, uint32_t start,
+ uint32_t last);
+
+INTERVAL_TREE_DEFINE(struct xbitmap32_node, bn_rbnode, uint32_t,
+ __bn_subtree_last, START, LAST, static inline, xbitmap32_tree)
+
+/* Iterate each interval of a bitmap. Do not change the bitmap. */
+#define for_each_xbitmap32_extent(bn, bitmap) \
+ for ((bn) = rb_entry_safe(rb_first(&(bitmap)->xb_root.rb_root), \
+ struct xbitmap32_node, bn_rbnode); \
+ (bn) != NULL; \
+ (bn) = rb_entry_safe(rb_next(&(bn)->bn_rbnode), \
+ struct xbitmap32_node, bn_rbnode))
+
+/* Clear a range of this bitmap. */
+int
+xbitmap32_clear(
+ struct xbitmap32 *bitmap,
+ uint32_t start,
+ uint32_t len)
{
- struct xagb_bitmap *bitmap = priv;
- struct xfs_buf *bp;
- xfs_fsblock_t fsbno;
- xfs_agblock_t agbno;
+ struct xbitmap32_node *bn;
+ struct xbitmap32_node *new_bn;
+ uint32_t last = start + len - 1;
- xfs_btree_get_block(cur, level, &bp);
- if (!bp)
- return 0;
+ while ((bn = xbitmap32_tree_iter_first(&bitmap->xb_root, start, last))) {
+ if (bn->bn_start < start && bn->bn_last > last) {
+ uint32_t old_last = bn->bn_last;
- fsbno = XFS_DADDR_TO_FSB(cur->bc_mp, xfs_buf_daddr(bp));
- agbno = XFS_FSB_TO_AGBNO(cur->bc_mp, fsbno);
+ /* overlaps with the entire clearing range */
+ xbitmap32_tree_remove(bn, &bitmap->xb_root);
+ bn->bn_last = start - 1;
+ xbitmap32_tree_insert(bn, &bitmap->xb_root);
- return xagb_bitmap_set(bitmap, agbno, 1);
+ /* add an extent */
+ new_bn = kmalloc(sizeof(struct xbitmap32_node),
+ XCHK_GFP_FLAGS);
+ if (!new_bn)
+ return -ENOMEM;
+ new_bn->bn_start = last + 1;
+ new_bn->bn_last = old_last;
+ xbitmap32_tree_insert(new_bn, &bitmap->xb_root);
+ } else if (bn->bn_start < start) {
+ /* overlaps with the left side of the clearing range */
+ xbitmap32_tree_remove(bn, &bitmap->xb_root);
+ bn->bn_last = start - 1;
+ xbitmap32_tree_insert(bn, &bitmap->xb_root);
+ } else if (bn->bn_last > last) {
+ /* overlaps with the right side of the clearing range */
+ xbitmap32_tree_remove(bn, &bitmap->xb_root);
+ bn->bn_start = last + 1;
+ xbitmap32_tree_insert(bn, &bitmap->xb_root);
+ break;
+ } else {
+ /* in the middle of the clearing range */
+ xbitmap32_tree_remove(bn, &bitmap->xb_root);
+ kfree(bn);
+ }
+ }
+
+ return 0;
}
-/* Mark all (per-AG) btree blocks in the agblock bitmap. */
+/* Set a range of this bitmap. */
int
-xagb_bitmap_set_btblocks(
- struct xagb_bitmap *bitmap,
- struct xfs_btree_cur *cur)
+xbitmap32_set(
+ struct xbitmap32 *bitmap,
+ uint32_t start,
+ uint32_t len)
{
- return xfs_btree_visit_blocks(cur, xagb_bitmap_visit_btblock,
- XFS_BTREE_VISIT_ALL, bitmap);
+ struct xbitmap32_node *left;
+ struct xbitmap32_node *right;
+ uint32_t last = start + len - 1;
+ int error;
+
+ /* Is this whole range already set? */
+ left = xbitmap32_tree_iter_first(&bitmap->xb_root, start, last);
+ if (left && left->bn_start <= start && left->bn_last >= last)
+ return 0;
+
+ /* Clear out everything in the range we want to set. */
+ error = xbitmap32_clear(bitmap, start, len);
+ if (error)
+ return error;
+
+ /* Do we have a left-adjacent extent? */
+ left = xbitmap32_tree_iter_first(&bitmap->xb_root, start - 1, start - 1);
+ ASSERT(!left || left->bn_last + 1 == start);
+
+ /* Do we have a right-adjacent extent? */
+ right = xbitmap32_tree_iter_first(&bitmap->xb_root, last + 1, last + 1);
+ ASSERT(!right || right->bn_start == last + 1);
+
+ if (left && right) {
+ /* combine left and right adjacent extent */
+ xbitmap32_tree_remove(left, &bitmap->xb_root);
+ xbitmap32_tree_remove(right, &bitmap->xb_root);
+ left->bn_last = right->bn_last;
+ xbitmap32_tree_insert(left, &bitmap->xb_root);
+ kfree(right);
+ } else if (left) {
+ /* combine with left extent */
+ xbitmap32_tree_remove(left, &bitmap->xb_root);
+ left->bn_last = last;
+ xbitmap32_tree_insert(left, &bitmap->xb_root);
+ } else if (right) {
+ /* combine with right extent */
+ xbitmap32_tree_remove(right, &bitmap->xb_root);
+ right->bn_start = start;
+ xbitmap32_tree_insert(right, &bitmap->xb_root);
+ } else {
+ /* add an extent */
+ left = kmalloc(sizeof(struct xbitmap32_node), XCHK_GFP_FLAGS);
+ if (!left)
+ return -ENOMEM;
+ left->bn_start = start;
+ left->bn_last = last;
+ xbitmap32_tree_insert(left, &bitmap->xb_root);
+ }
+
+ return 0;
+}
+
+/* Free everything related to this bitmap. */
+void
+xbitmap32_destroy(
+ struct xbitmap32 *bitmap)
+{
+ struct xbitmap32_node *bn;
+
+ while ((bn = xbitmap32_tree_iter_first(&bitmap->xb_root, 0, -1U))) {
+ xbitmap32_tree_remove(bn, &bitmap->xb_root);
+ kfree(bn);
+ }
+}
+
+/* Set up a per-AG block bitmap. */
+void
+xbitmap32_init(
+ struct xbitmap32 *bitmap)
+{
+ bitmap->xb_root = RB_ROOT_CACHED;
}
/*
- * Record all the buffers pointed to by the btree cursor. Callers already
- * engaged in a btree walk should call this function to capture the list of
- * blocks going from the leaf towards the root.
+ * Remove all the blocks mentioned in @sub from the extents in @bitmap.
+ *
+ * The intent is that callers will iterate the rmapbt for all of its records
+ * for a given owner to generate @bitmap; and iterate all the blocks of the
+ * metadata structures that are not being rebuilt and have the same rmapbt
+ * owner to generate @sub. This routine subtracts all the extents
+ * mentioned in sub from all the extents linked in @bitmap, which leaves
+ * @bitmap as the list of blocks that are not accounted for, which we assume
+ * are the dead blocks of the old metadata structure. The blocks mentioned in
+ * @bitmap can be reaped.
+ *
+ * This is the logical equivalent of bitmap &= ~sub.
*/
int
-xagb_bitmap_set_btcur_path(
- struct xagb_bitmap *bitmap,
- struct xfs_btree_cur *cur)
+xbitmap32_disunion(
+ struct xbitmap32 *bitmap,
+ struct xbitmap32 *sub)
{
- int i;
+ struct xbitmap32_node *bn;
int error;
- for (i = 0; i < cur->bc_nlevels && cur->bc_levels[i].ptr == 1; i++) {
- error = xagb_bitmap_visit_btblock(cur, i, bitmap);
+ if (xbitmap32_empty(bitmap) || xbitmap32_empty(sub))
+ return 0;
+
+ for_each_xbitmap32_extent(bn, sub) {
+ error = xbitmap32_clear(bitmap, bn->bn_start,
+ bn->bn_last - bn->bn_start + 1);
if (error)
return error;
}
@@ -318,14 +505,14 @@ xagb_bitmap_set_btcur_path(
}
/* How many bits are set in this bitmap? */
-uint64_t
-xbitmap_hweight(
- struct xbitmap *bitmap)
+uint32_t
+xbitmap32_hweight(
+ struct xbitmap32 *bitmap)
{
- struct xbitmap_node *bn;
- uint64_t ret = 0;
+ struct xbitmap32_node *bn;
+ uint32_t ret = 0;
- for_each_xbitmap_extent(bn, bitmap)
+ for_each_xbitmap32_extent(bn, bitmap)
ret += bn->bn_last - bn->bn_start + 1;
return ret;
@@ -333,15 +520,15 @@ xbitmap_hweight(
/* Call a function for every run of set bits in this bitmap. */
int
-xbitmap_walk(
- struct xbitmap *bitmap,
- xbitmap_walk_fn fn,
+xbitmap32_walk(
+ struct xbitmap32 *bitmap,
+ xbitmap32_walk_fn fn,
void *priv)
{
- struct xbitmap_node *bn;
+ struct xbitmap32_node *bn;
int error = 0;
- for_each_xbitmap_extent(bn, bitmap) {
+ for_each_xbitmap32_extent(bn, bitmap) {
error = fn(bn->bn_start, bn->bn_last - bn->bn_start + 1, priv);
if (error)
break;
@@ -352,23 +539,23 @@ xbitmap_walk(
/* Does this bitmap have no bits set at all? */
bool
-xbitmap_empty(
- struct xbitmap *bitmap)
+xbitmap32_empty(
+ struct xbitmap32 *bitmap)
{
return bitmap->xb_root.rb_root.rb_node == NULL;
}
/* Is the start of the range set or clear? And for how long? */
bool
-xbitmap_test(
- struct xbitmap *bitmap,
- uint64_t start,
- uint64_t *len)
+xbitmap32_test(
+ struct xbitmap32 *bitmap,
+ uint32_t start,
+ uint32_t *len)
{
- struct xbitmap_node *bn;
- uint64_t last = start + *len - 1;
+ struct xbitmap32_node *bn;
+ uint32_t last = start + *len - 1;
- bn = xbitmap_tree_iter_first(&bitmap->xb_root, start, last);
+ bn = xbitmap32_tree_iter_first(&bitmap->xb_root, start, last);
if (!bn)
return false;
if (bn->bn_start <= start) {
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-24 09:44:12 +0000