mount: add note about fcntl/ioctl unreliability on NFS to mount.8

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/mount/mount.8 b/mount/mount.8
index 802f4e46832126d6044a958c5dfc55d133d13f8b..14a6f949743d1159706d3e86eafedbd35760ab2a 100644 (file)
--- a/mount/mount.8
+++ b/mount/mount.8
@@ -2067,6 +2067,13 @@ content of the second file also depends on the kernel and others settings (e.g.
 remote NFS server. In particular case the mount command may reports unreliable
 information about a NFS mount point and the /proc/mounts file usually contains
 more reliable information.)
+.PP
+Checking files on NFS filesystem referenced by file descriptors (i.e. the
+.BR fcntl
+and
+.BR ioctl
+families of functions) may lead to inconsistent result due to the lack of
+consistency check in kernel even if noac is used.
 .SH HISTORY
 A
 .B mount