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authorCyrill Gorcunov <gorcunov@openvz.org>2012-07-30 14:43:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-30 17:25:21 -0700
commit1d151c337d79fa3de88654d2514f58fbd916a8e0 (patch)
tree79f96ea4b081f310aa62246e879224467b092261 /include
parent65fed8f6f23070b56d0ed3841173ddd410130a89 (diff)
c/r: fcntl: add F_GETOWNER_UIDS option
When we restore file descriptors we would like them to look exactly as they were at dumping time. With help of fcntl it's almost possible, the missing snippet is file owners UIDs. To be able to read their values the F_GETOWNER_UIDS is introduced. This option is valid iif CONFIG_CHECKPOINT_RESTORE is turned on, otherwise returning -EINVAL. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Cc: "Serge E. Hallyn" <serge@hallyn.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/asm-generic/fcntl.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h
index 9e5b0356e2b..a48937d4a5e 100644
--- a/include/asm-generic/fcntl.h
+++ b/include/asm-generic/fcntl.h
@@ -120,6 +120,10 @@
#define F_GETOWN_EX 16
#endif
+#ifndef F_GETOWNER_UIDS
+#define F_GETOWNER_UIDS 17
+#endif
+
#define F_OWNER_TID 0
#define F_OWNER_PID 1
#define F_OWNER_PGRP 2