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[PATCH] add a vfs_permission helper

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Most permission() calls have a struct nameidata * available.  This helper
takes that as an argument and thus makes sure we pass it down for lookup
intents and prepares for per-mount read-only support where we need a struct
vfsmount for checking whether a file is writeable.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Christoph Hellwig 2005-11-08 21:35:04 -08:00 • committed by Linus Torvalds
commit e4543eddfd
7 changed files with 31 additions and 15 deletions
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1
include/linux/fs.h
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@ -874,6 +874,7 @@ static inline void unlock_super(struct super_block * sb)
/*
* VFS helper functions..
*/
extern int vfs_permission(struct nameidata *, int);
extern int vfs_create(struct inode *, struct dentry *, int, struct nameidata *);
extern int vfs_mkdir(struct inode *, struct dentry *, int);
extern int vfs_mknod(struct inode *, struct dentry *, int, dev_t);