[PATCH] mm/shmem: remove redundant entry_order variable in shmem_split_large_entry()

[Jackie Liu <liu.yun@linux.dev>]

From: Jackie Liu <liuyun01@kylinos.cn>

Commit d53c78fffe7a ("mm/shmem: use xas_try_split() in shmem_split_large_entry()")
reworked shmem_split_large_entry() to use xas_try_split() and simplified
the splitting logic. After that change, the local variable `entry_order`
became redundant since its value was always immediately copied to `cur_order`.
Remove `entry_order` and use `cur_order` directly to simplify the code.

No functional change intended.

Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
---
 mm/shmem.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/mm/shmem.c b/mm/shmem.c
index e2c76a30802b..53d28ea6e52b 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2235,7 +2235,7 @@ static int shmem_split_large_entry(struct inode *inode, pgoff_t index,
 {
 	struct address_space *mapping = inode->i_mapping;
 	XA_STATE_ORDER(xas, &mapping->i_pages, index, 0);
-	int split_order = 0, entry_order;
+	int split_order = 0;
 	int i;
 
 	/* Convert user data gfp flags to xarray node gfp flags */
@@ -2253,15 +2253,12 @@ static int shmem_split_large_entry(struct inode *inode, pgoff_t index,
 			goto unlock;
 		}
 
-		entry_order = xas_get_order(&xas);
-
-		if (!entry_order)
+		cur_order = xas_get_order(&xas);
+		if (!cur_order)
 			goto unlock;
 
 		/* Try to split large swap entry in pagecache */
-		cur_order = entry_order;
-		swap_index = round_down(index, 1 << entry_order);
-
+		swap_index = round_down(index, 1 << cur_order);
 		split_order = xas_try_split_min_order(cur_order);
 
 		while (cur_order > 0) {
-- 
2.51.0