[PATCH] nfs-utils mount: recover the lost EBUSY

[jiyin@redhat.com]

From: "Jianhong.Yin" <yin-jianhong@163.com>

see: https://bugzilla.redhat.com/show_bug.cgi?id=1629705
[nfs-utils] mount -osharecache failure but return 'true'

mount.nfs4 -o context=system_u:object_r:user_home_dir_t:s0,sharecache $serv:$expdir $nfsmp
mount.nfs4 -o context=system_u:object_r:xferlog_t:s0,sharecache $serv:$expdir $nfsmp2
^^^ here mount fail, but return true. it confuse user!

Anyway, we should not hide the failure and pretend that it
does not exist.

Signed-off-by: Jianhong Yin <yin-jianhong@163.com>
---
 utils/mount/stropts.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/utils/mount/stropts.c b/utils/mount/stropts.c
index 4d2e37e..ca5bc7f 100644
--- a/utils/mount/stropts.c
+++ b/utils/mount/stropts.c
@@ -1078,15 +1078,6 @@ static int nfsmount_fg(struct nfsmount_info *mi)
 		if (nfs_try_mount(mi))
 			return EX_SUCCESS;
 
-		if (errno == EBUSY)
-			/* The only cause of EBUSY is if exactly the desired
-			 * filesystem is already mounted.  That can arguably
-			 * be seen as success.  "mount -a" tries to optimise
-			 * out this case but sometimes fails.  Help it out
-			 * by pretending everything is rosy
-			 */
-			return EX_SUCCESS;
-
 		if (nfs_is_permanent_error(errno))
 			break;
 
-- 
2.17.1