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| author | Eric W. Biederman <ebiederm@xmission.com> | 2006-10-02 02:17:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-02 07:57:13 -0700 |
| commit | 81af8d67d4fc35b1ee6e0feb1f1b34b3a33eeb44 (patch) | |
| tree | 0217dde7d28427e9b6ac587fd4edb9fb1f8f11b4 /fs/read_write.h | |
| parent | 5feb8f5f8403d8874a04aac443692dfe83bd63d2 (diff) | |
| download | blackbird-op-linux-81af8d67d4fc35b1ee6e0feb1f1b34b3a33eeb44.tar.gz blackbird-op-linux-81af8d67d4fc35b1ee6e0feb1f1b34b3a33eeb44.zip | |
[PATCH] vt: rework the console spawning variables
This is such a rare path it took me a while to figure out how to test
this after soring out the locking.
This patch does several things.
- The variables used are moved into a structure and declared in vt_kern.h
- A spinlock is added so we don't have SMP races updating the values.
- Instead of raw pid_t value a struct_pid is used to guard against
pid wrap around issues, if the daemon to spawn a new console dies.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/read_write.h')
0 files changed, 0 insertions, 0 deletions
