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authorChristoph Hellwig <hch@lst.de>2006-01-10 07:51:55 +0300
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-10 19:01:29 +0300
commit5be196e5f925dab2309530fabce69c2e562b9791 (patch)
tree4249d808c38b6f13e899ac936585c1fbb48e5b3b /include/linux/xattr.h
parenta7e670d828e85ef9aacb7fa1cd221525c408110f (diff)
downloadlinux-5be196e5f925dab2309530fabce69c2e562b9791.tar.xz
[PATCH] add vfs_* helpers for xattr operations
Add vfs_getxattr, vfs_setxattr and vfs_removexattr helpers for common checks around invocation of the xattr methods. NFSD already was missing some of the checks and there will be more soon. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: James Morris <jmorris@namei.org> (James, I haven't touched selinux yet because it's doing various odd things and I'm not sure how it would interact with the security attribute fallbacks you added. Could you investigate whether it could use vfs_getxattr or if not add a __vfs_getxattr helper to share the bits it is fine with?) For NFSv4: instead of just converting it add an nfsd_getxattr helper for the code shared by NFSv2/3 and NFSv4 ACLs. In fact that code isn't even NFS-specific, but I'll wait for more users to pop up first before moving it to common code. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Neil Brown <neilb@suse.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/xattr.h')
-rw-r--r--include/linux/xattr.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/xattr.h b/include/linux/xattr.h
index 23f9c61d9546..366f0ab4219f 100644
--- a/include/linux/xattr.h
+++ b/include/linux/xattr.h
@@ -25,6 +25,10 @@ struct xattr_handler {
size_t size, int flags);
};
+ssize_t vfs_getxattr(struct dentry *, char *, void *, size_t);
+int vfs_setxattr(struct dentry *, char *, void *, size_t, int);
+int vfs_removexattr(struct dentry *, char *);
+
ssize_t generic_getxattr(struct dentry *dentry, const char *name, void *buffer, size_t size);
ssize_t generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size);
int generic_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags);