commit 168e2351c35f7c4e789c2604b8a812997b4f9eba
author Alexey Kodanev <alexey.kodanev@oracle.com> Fri Mar 13 16:52:16 2020 +0300
committer Alexey Kodanev <alexey.kodanev@oracle.com> Fri Mar 13 16:54:22 2020 +0300
tree b18ee65f1f2c429e59c39716a7160881e9bb1a8f
parent 6586a03a22664ba806ba8c64ba96cb9eaebc6945

proc01: exclude /proc/nfsd/clients/*/ctl

"ctl" files are write-only, added in Linux 5.3 with this commit
89c905beccbb ("nfsd: allow forced expiration of NFSv4 clients")

Before the patch:
proc01      1  TFAIL  :  proc01.c:396: read failed: /proc/fs/nfsd/clients/13/ctl: errno=EINVAL(22): Invalid argument
proc01      0  TINFO  :  /proc/fs/nfsd/unlock_filesystem: known issue: errno=EINVAL(22): Invalid argument
proc01      0  TINFO  :  /proc/fs/nfsd/unlock_ip: known issue: errno=EINVAL(22): Invalid argument
...

After:
proc01      0  TINFO  :  /proc/fs/nfsd/clients/13/ctl: known issue: errno=EINVAL(22): Invalid argument
proc01      0  TINFO  :  /proc/fs/nfsd/unlock_filesystem: known issue: errno=EINVAL(22): Invalid argument
proc01      0  TINFO  :  /proc/fs/nfsd/unlock_ip: known issue: errno=EINVAL(22): Invalid argument
...

Signed-off-by: Alexey Kodanev <alexey.kodanev@oracle.com>
Reviewed-by: Petr Vorel <pvorel@suse.cz>

testcases/kernel/fs/proc/proc01.c

diff --git a/testcases/kernel/fs/proc/proc01.c b/testcases/kernel/fs/proc/proc01.c
index d917591..9684369 100644
--- a/testcases/kernel/fs/proc/proc01.c
+++ b/testcases/kernel/fs/proc/proc01.c
@@ -85,6 +85,7 @@
 	{"open", "/proc/sal/init/data", EBUSY},
 	{"open", "/proc/sal/mca/data", EBUSY},
 	{"open", "/proc/fs/nfsd/pool_stats", ENODEV},
+	{"read", "/proc/fs/nfsd/clients/*/ctl", EINVAL},
 	{"read", "/proc/acpi/event", EAGAIN},
 	{"read", "/proc/kmsg", EAGAIN},
 	{"read", "/proc/sal/cpe/event", EAGAIN},