From: Miklos Szeredi <miklos@szeredi.hu>
Deprecate access mode of '3' in open() as suggested by Linus.
Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Cc: <viro@parcelfarce.linux.theplanet.co.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
fs/open.c | 12 ++++++++++++
1 files changed, 12 insertions(+)
diff -puN fs/open.c~deprecate-openfoo-3 fs/open.c
--- devel/fs/open.c~deprecate-openfoo-3 2005-08-31 21:08:59.000000000 -0700
+++ devel-akpm/fs/open.c 2005-08-31 21:09:34.000000000 -0700
@@ -814,7 +814,19 @@ struct file *filp_open(const char * file
int namei_flags, error;
struct nameidata nd;
struct file *f;
+ static int warned;
+ /*
+ * Access mode of 3 had some old uses, that are probably not
+ * applicable anymore. For now just warn about deprecation.
+ * Later it can be changed to return -EINVAL.
+ */
+ if ((flags & O_ACCMODE) == 3 && warned < 5) {
+ warned++;
+ printk(KERN_WARNING "Warning: '%s' (pid=%i) uses deprecated "
+ "open flags, please report!\n",
+ current->comm, current->tgid);
+ }
namei_flags = flags;
if ((namei_flags+1) & O_ACCMODE)
namei_flags++;
_