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maple_tree: use MAS_BUG_ON() prior to calling mas_meta_gap() 

Replace the call to BUG_ON() in mas_meta_gap() with calls before the
function call MAS_BUG_ON() to get more information on error condition.

Link: https://lkml.kernel.org/r/20230518145544.1722059-15-Liam.Howlett@oracle.com
Signed-off-by: Liam R. Howlett <Liam.Howlett@oracle.com>
Cc: David Binderman <dcb314@hotmail.com>
Cc: Peng Zhang <zhangpeng.00@bytedance.com>
Cc: Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: Vernon Yang <vernon2gm@gmail.com>
Cc: Wei Yang <richard.weiyang@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Liam R. Howlett 2023-05-18 10:55:23 -04:00 committed by Andrew Morton
parent 1c414c6a4b
commit bec1b51efb
1 changed files with 2 additions and 2 deletions
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4
lib/maple_tree.c
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@ -963,8 +963,6 @@ static inline unsigned char ma_meta_end(struct maple_node *mn,
static inline unsigned char ma_meta_gap(struct maple_node *mn,
enum maple_type mt)
{
BUG_ON(mt != maple_arange_64);
return mn->ma64.meta.gap;
}
@ -1628,6 +1626,7 @@ static inline unsigned long mas_max_gap(struct ma_state *mas)
return mas_leaf_max_gap(mas);
node = mas_mn(mas);
MAS_BUG_ON(mas, mt != maple_arange_64);
offset = ma_meta_gap(node, mt);
if (offset == MAPLE_ARANGE64_META_MAX)
return 0;
@ -1661,6 +1660,7 @@ static inline void mas_parent_gap(struct ma_state *mas, unsigned char offset,
pgaps = ma_gaps(pnode, pmt);
ascend:
MAS_BUG_ON(mas, pmt != maple_arange_64);
meta_offset = ma_meta_gap(pnode, pmt);
if (meta_offset == MAPLE_ARANGE64_META_MAX)
meta_gap = 0;