[PATCH 03/22] shmem: set a_ops earlier in shmem_symlink

Christoph Hellwig
2024-02-19T06:27:42Z

Set the a_ops in shmem_symlink before reading a folio from the mapping
to prepare for asserting that shmem_get_folio is only called on shmem
mappings.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
---
mm/shmem.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/shmem.c b/mm/shmem.c
index f607b0cab7e4e2..1900916aa84d13 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -3506,10 +3506,10 @@ static int shmem_symlink(struct mnt_idmap *idmap, struct inode *dir,
inode->i_op = &shmem_short_symlink_operations;
} else {
inode_nohighmem(inode);
+ inode->i_mapping->a_ops = &shmem_aops;
error = shmem_get_folio(inode, 0, &folio, SGP_WRITE);
if (error)
goto out_remove_offset;
- inode->i_mapping->a_ops = &shmem_aops;
inode->i_op = &shmem_symlink_inode_operations;
memcpy(folio_address(folio), symname, len);
folio_mark_uptodate(folio);
--
2.39.2