CVS commit: src/sbin/umount

["Emmanuel Dreyfus" <manu%netbsd.org@localhost>]

Module Name:    src
Committed By:   manu
Date:           Sat Jun 27 08:29:56 UTC 2015

Modified Files:
        src/sbin/umount: umount.c

Log Message:
Remove useless and harmful sync(2) call in umount(8)

Remove sync(2) call before unmount(2) in umount(8). This sync(2) is useless
since unmount(2) will perform a VFS_SYNC anyway.

But moreover, this sync(2) may be harmful, as there are some situation where
it cannot return (unreachable NFS server, for instance), causing umount -f
to be uneffective.


To generate a diff of this commit:
cvs rdiff -u -r1.47 -r1.48 src/sbin/umount/umount.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.