| commit | d668dc56631da067540b2494d2a1f29ff7b5f15a | [log] [tgz] |
|---|---|---|
| author | Al Viro <viro@zeniv.linux.org.uk> | Tue Jan 10 22:35:38 2012 -0500 |
| committer | Al Viro <viro@zeniv.linux.org.uk> | Wed Jan 11 00:20:12 2012 -0500 |
| tree | 303ad17208838e8b9b1752f9427d55c84555f0f0 | |
| parent | 8753333266be67ff3a984ac1f6566d31c260bee4 [diff] |
autofs4: deal with autofs4_write/autofs4_write races Just serialize the actual writing of packets into pipe on a new mutex, independent from everything else in the locking hierarchy. As soon as something has started feeding a piece of packet into the pipe to daemon, we *want* everything else about to try the same to wait until we are done. Acked-by: Ian Kent <raven@themaw.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>