This eliminates a check for shared that was overrestrictive and
duplicated a check in generic_file_readonly_mmap.
Fixes: 1543b4c5071c ("fs/9p: remove writeback fid and fix per-file modes")
Link: https://lore.kernel.org/v9fs/ZK25XZ%2BGpR3KHIB%2F@xxxxxxxxxxxxxx/
Reviewed-by: Dominique Martinet <asmadeus@xxxxxxxxxxxxx>
Reviewed-by: Christian Schoenebeck <linux_oss@xxxxxxxxxxxxx>
Signed-off-by: Eric Van Hensbergen <ericvh@xxxxxxxxxx>
---
fs/9p/vfs_file.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 2996fb00387f..9b61b480a9b0 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -505,9 +505,7 @@ v9fs_file_mmap(struct file *filp, struct vm_area_struct *vma)
p9_debug(P9_DEBUG_MMAP, "filp :%p\n", filp);
if (!(v9ses->cache & CACHE_WRITEBACK)) {
- p9_debug(P9_DEBUG_CACHE, "(no mmap mode)");
- if (vma->vm_flags & VM_MAYSHARE)
- return -ENODEV;
+ p9_debug(P9_DEBUG_CACHE, "(read-only mmap mode)");
invalidate_inode_pages2(filp->f_mapping);
return generic_file_readonly_mmap(filp, vma);
}
--
2.39.2
