From: kernel test robot <lkp@xxxxxxxxx>
This function is called from ipc_addid with a spin lock held so change
GFP_KERNEL to GFP_ATOMIC.
Generated by: scripts/coccinelle/locks/call_kern.cocci
Fixes: dc996261c060 ("ipc: convert ipcs_idr to XArray")
CC: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Julia Lawall <julia.lawall@xxxxxxxx>
---
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 842221d073a88c9cd1aa01777c4b69020c28e7a4
commit: dc996261c060f06e1f20f580e203b81a4ddfe301 [16130/16374] ipc: convert ipcs_idr to XArray
:::::: branch date: 17 hours ago
:::::: commit date: 3 days ago
Please take the patch only if it's a positive warning. Thanks!
util.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -241,7 +241,7 @@ static inline int ipc_id_alloc(struct ip
xas.xa_index;
xas_store(&xas, new);
xas_clear_mark(&xas, XA_FREE_MARK);
- } while (__xas_nomem(&xas, GFP_KERNEL));
+ } while (__xas_nomem(&xas, GFP_ATOMIC));
xas_unlock(&xas);
err = xas_error(&xas);
@@ -250,7 +250,7 @@ static inline int ipc_id_alloc(struct ip
new->id = get_restore_id(ids);
new->seq = ipcid_to_seqx(new->id);
idx = ipcid_to_idx(new->id);
- err = xa_insert(&ids->ipcs, idx, new, GFP_KERNEL);
+ err = xa_insert(&ids->ipcs, idx, new, GFP_ATOMIC);
if (err == -EBUSY)
err = -ENOSPC;
set_restore_id(ids, -1);
