tree b97fef39565c4e8dd15c564cff166753eb2a19df
parent 8ee031631546cf2f7859cc69593bd60bbdd70b46
author Tuomas Tynkkynen <tuomas@tuxera.com> 1504709948 +0300
committer Al Viro <viro@zeniv.linux.org.uk> 1508814601 -0400

net/9p: Switch to wait_event_killable()

Because userspace gets Very Unhappy when calls like stat() and execve()
return -EINTR on 9p filesystem mounts. For instance, when bash is
looking in PATH for things to execute and some SIGCHLD interrupts
stat(), bash can throw a spurious 'command not found' since it doesn't
retry the stat().

In practice, hitting the problem is rare and needs a really
slow/bogged down 9p server.

Cc: stable@vger.kernel.org
Signed-off-by: Tuomas Tynkkynen <tuomas@tuxera.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>