scripts/gdb/stackdepot: rename pool_index to pools_num

After stackdepot evicting support patchset[1], we rename pool_index to
pools_num.

To avoid from the below issue, we rename consistently in
gdb scripts.

Python Exception <class 'gdb.error'>: No symbol "pool_index" in current
context.
Error occurred in Python: No symbol "pool_index" in current context.

[1] https://lore.kernel.org/linux-mm/[email protected]/
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Kuan-Ying Lee <[email protected]>
Reviewed-by: Florian Fainelli <[email protected]>
Cc: Andrey Konovalov <[email protected]>
Cc: AngeloGioacchino Del Regno <[email protected]>
Cc: Chinwen Chang <[email protected]>
Cc: Matthias Brugger <[email protected]>
Cc: Oleg Nesterov <[email protected]>
Cc: Qun-Wei Lin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

1 files changed, 3 insertions, 3 deletions

diff --git a/scripts/gdb/linux/stackdepot.py b/scripts/gdb/linux/stackdepot.py
index 047d329a6a12..0281d9de4b7c 100644
--- a/scripts/gdb/linux/stackdepot.py
+++ b/scripts/gdb/linux/stackdepot.py
@@ -25,10 +25,10 @@ def stack_depot_fetch(handle):
     handle_parts_t = gdb.lookup_type("union handle_parts")
     parts = handle.cast(handle_parts_t)
     offset = parts['offset'] << DEPOT_STACK_ALIGN
-    pool_index_cached = gdb.parse_and_eval('pool_index')
+    pools_num = gdb.parse_and_eval('pools_num')
 
-    if parts['pool_index'] > pool_index_cached:
-        gdb.write("pool index %d out of bounds (%d) for stack id 0x%08x\n" % (parts['pool_index'], pool_index_cached, handle))
+    if parts['pool_index'] > pools_num:
+        gdb.write("pool index %d out of bounds (%d) for stack id 0x%08x\n" % (parts['pool_index'], pools_num, handle))
         return gdb.Value(0), 0
 
     stack_pools = gdb.parse_and_eval('stack_pools')