[Virtio-fs] [PATCH 2/2] virtiofsd: Allow setxattr operation to directry

[Misono Tomohiro]

setxattr to directry fails because lo_setxattr (and lo_remove_xattr)
tries to open any file with O_RDWR even if it is a directory.
Since O_RDONLY is enough for the operation, change O_RDWR flag to
O_RDONLY to fix the problem.

Signed-off-by: Misono Tomohiro <misono.tomohiro at jp.fujitsu.com>
---
 contrib/virtiofsd/passthrough_ll.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/contrib/virtiofsd/passthrough_ll.c b/contrib/virtiofsd/passthrough_ll.c
index 645324da58..1b439d58ed 100644
--- a/contrib/virtiofsd/passthrough_ll.c
+++ b/contrib/virtiofsd/passthrough_ll.c
@@ -2397,7 +2397,7 @@ static void lo_setxattr(fuse_req_t req, fuse_ino_t ino, const char *name,
 	}
 
 	sprintf(procname, "%i", inode->fd);
-	fd = openat(lo->proc_self_fd, procname, O_RDWR|O_NONBLOCK);
+	fd = openat(lo->proc_self_fd, procname, O_RDONLY|O_NONBLOCK);
 	if (fd < 0) {
 		saverr = errno;
 		goto out;
@@ -2446,7 +2446,7 @@ static void lo_removexattr(fuse_req_t req, fuse_ino_t ino, const char *name)
 	}
 
 	sprintf(procname, "%i", inode->fd);
-	fd = openat(lo->proc_self_fd, procname, O_RDWR|O_NONBLOCK);
+	fd = openat(lo->proc_self_fd, procname, O_RDONLY|O_NONBLOCK);
 	if (fd < 0) {
 		saverr = errno;
 		goto out;
-- 
2.21.0