summaryrefslogtreecommitdiff
path: root/lib/xarray.c
diff options
context:
space:
mode:
Diffstat (limited to 'lib/xarray.c')
-rw-r--r--lib/xarray.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/lib/xarray.c b/lib/xarray.c
index 47e17d46e5f8..1d9fab7db8da 100644
--- a/lib/xarray.c
+++ b/lib/xarray.c
@@ -968,6 +968,7 @@ void xas_pause(struct xa_state *xas)
if (xas_invalid(xas))
return;
+ xas->xa_node = XAS_RESTART;
if (node) {
unsigned int offset = xas->xa_offset;
while (++offset < XA_CHUNK_SIZE) {
@@ -975,10 +976,11 @@ void xas_pause(struct xa_state *xas)
break;
}
xas->xa_index += (offset - xas->xa_offset) << node->shift;
+ if (xas->xa_index == 0)
+ xas->xa_node = XAS_BOUNDS;
} else {
xas->xa_index++;
}
- xas->xa_node = XAS_RESTART;
}
EXPORT_SYMBOL_GPL(xas_pause);
@@ -1080,7 +1082,7 @@ void *xas_find(struct xa_state *xas, unsigned long max)
{
void *entry;
- if (xas_error(xas))
+ if (xas_error(xas) || xas->xa_node == XAS_BOUNDS)
return NULL;
if (xas->xa_index > max)
return set_bounds(xas);
@@ -1088,7 +1090,7 @@ void *xas_find(struct xa_state *xas, unsigned long max)
if (!xas->xa_node) {
xas->xa_index = 1;
return set_bounds(xas);
- } else if (xas_top(xas->xa_node)) {
+ } else if (xas->xa_node == XAS_RESTART) {
entry = xas_load(xas);
if (entry || xas_not_node(xas->xa_node))
return entry;