Thread (7 messages) 7 messages, 3 authors, 2009-11-14

Re: F_SETOWN_EX and F_GETLK64 conflict

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From: Stephen Rothwell <hidden>
Date: 2009-10-30 05:29:10
Also in: lkml
Subsystem: alpha port, file locking (flock() and fcntl()/lockf()), generic include/asm header files, parisc architecture, the rest · Maintainers: Richard Henderson, Matt Turner, Magnus Lindholm, Jeff Layton, Chuck Lever, Arnd Bergmann, "James E.J. Bottomley", Helge Deller, Linus Torvalds

Possibly related (same subject, not in this thread)

On Fri, 30 Oct 2009 16:13:20 +1100 Stephen Rothwell [off-list ref] wrote:
This is why we have F_LINUX_SPECIFIC_BASE and use it in
include/linux/fcntl.h ... it should be used as a base for any new fcntl
types since they don't require backward compatibility.
Something like this (not even built, but pretty obvious):

From: Stephen Rothwell <redacted>
Date: Fri, 30 Oct 2009 16:25:51 +1100
Subject: [PATCH] fcntl: use consistent valuse for F_SETOWN_EX/F_GETOWN_EX

This is what F_LINUX_SPECIFIC_BASE was meant for.

Signed-off-by: Stephen Rothwell <redacted>
---
 arch/alpha/include/asm/fcntl.h  |    2 --
 arch/parisc/include/asm/fcntl.h |    2 --
 include/asm-generic/fcntl.h     |   14 --------------
 include/linux/fcntl.h           |   12 ++++++++++++
 4 files changed, 12 insertions(+), 18 deletions(-)
diff --git a/arch/alpha/include/asm/fcntl.h b/arch/alpha/include/asm/fcntl.h
index e42823e..25da001 100644
--- a/arch/alpha/include/asm/fcntl.h
+++ b/arch/alpha/include/asm/fcntl.h
@@ -26,8 +26,6 @@
 #define F_GETOWN	6	/*  for sockets. */
 #define F_SETSIG	10	/*  for sockets. */
 #define F_GETSIG	11	/*  for sockets. */
-#define F_SETOWN_EX	12
-#define F_GETOWN_EX	13
 
 /* for posix fcntl() and lockf() */
 #define F_RDLCK		1
diff --git a/arch/parisc/include/asm/fcntl.h b/arch/parisc/include/asm/fcntl.h
index 5f39d55..1e1c824 100644
--- a/arch/parisc/include/asm/fcntl.h
+++ b/arch/parisc/include/asm/fcntl.h
@@ -28,8 +28,6 @@
 #define F_SETOWN	12	/*  for sockets. */
 #define F_SETSIG	13	/*  for sockets. */
 #define F_GETSIG	14	/*  for sockets. */
-#define F_GETOWN_EX	15
-#define F_SETOWN_EX	16
 
 /* for posix fcntl() and lockf() */
 #define F_RDLCK		01
diff --git a/include/asm-generic/fcntl.h b/include/asm-generic/fcntl.h
index 0c3dd86..980d6b5 100644
--- a/include/asm-generic/fcntl.h
+++ b/include/asm-generic/fcntl.h
@@ -73,20 +73,6 @@
 #define F_SETSIG	10	/* for sockets. */
 #define F_GETSIG	11	/* for sockets. */
 #endif
-#ifndef F_SETOWN_EX
-#define F_SETOWN_EX	12
-#define F_GETOWN_EX	13
-#endif
-
-#define F_OWNER_TID	0
-#define F_OWNER_PID	1
-#define F_OWNER_GID	2
-
-struct f_owner_ex {
-	int	type;
-	pid_t	pid;
-};
-
 /* for F_[GET|SET]FL */
 #define FD_CLOEXEC	1	/* actually anything with low bit set goes */
 
diff --git a/include/linux/fcntl.h b/include/linux/fcntl.h
index 8603740..b34c41d 100644
--- a/include/linux/fcntl.h
+++ b/include/linux/fcntl.h
@@ -40,6 +40,18 @@
                                            unlinking file.  */
 #define AT_SYMLINK_FOLLOW	0x400   /* Follow symbolic links.  */
 
+#define F_SETOWN_EX	(F_LINUX_SPECIFIC_BASE + 7)
+#define F_GETOWN_EX	(F_LINUX_SPECIFIC_BASE + 8)
+
+#define F_OWNER_TID	0
+#define F_OWNER_PID	1
+#define F_OWNER_GID	2
+
+struct f_owner_ex {
+	int	type;
+	pid_t	pid;
+};
+
 #ifdef __KERNEL__
 
 #ifndef force_o_largefile
-- 
1.6.5.2


-- 
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/
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