From: "xiaofeng.yan" <yanxiaofeng7@xxxxxx>
function xa_store_irq() has a spinlock as follows:
xa_lock_irq()
-->spin_lock_irq(&(xa)->xa_lock)
GFP_KERNEL flag could cause sleep.
So change GFP_KERNEL to GFP_ATOMIC and Romve "gfp_t gfp" in function
static inline void *xa_store_irq(struct xarray *xa, unsigned long index,
void *entry, gfp_t gfp)
Signed-off-by: xiaofeng.yan <yanxiaofeng7@xxxxxx>
---
include/linux/xarray.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/include/linux/xarray.h b/include/linux/xarray.h
index 92c0160b3352..aeaf97d5642f 100644
--- a/include/linux/xarray.h
+++ b/include/linux/xarray.h
@@ -595,7 +595,6 @@ static inline void *xa_store_bh(struct xarray *xa, unsigned long index,
* @xa: XArray.
* @index: Index into array.
* @entry: New entry.
- * @gfp: Memory allocation flags.
*
* This function is like calling xa_store() except it disables interrupts
* while holding the array lock.
@@ -605,12 +604,12 @@ static inline void *xa_store_bh(struct xarray *xa, unsigned long index,
* Return: The old entry at this index or xa_err() if an error happened.
*/
static inline void *xa_store_irq(struct xarray *xa, unsigned long index,
- void *entry, gfp_t gfp)
+ void *entry)
{
void *curr;
xa_lock_irq(xa);
- curr = __xa_store(xa, index, entry, gfp);
+ curr = __xa_store(xa, index, entry, GFP_ATOMIC);
xa_unlock_irq(xa);
return curr;
--
2.17.1
