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xattr: Add __vfs_{get,set,remove}xattr helpers

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Right now, various places in the kernel check for the existence of
getxattr, setxattr, and removexattr inode operations and directly call
those operations.  Switch to helper functions and test for the IOP_XATTR
flag instead.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Acked-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Andreas Gruenbacher
2016-09-29 17:48:42 +02:00
committed by Al Viro
parent f5c2443837
commit 5d6c31910b
14 changed files with 98 additions and 86 deletions
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4
security/integrity/evm/evm_main.c
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@@ -78,11 +78,11 @@ static int evm_find_protected_xattrs(struct dentry *dentry)
int error;
int count = 0;
if (!inode->i_op->getxattr)
if (!(inode->i_opflags & IOP_XATTR))
return -EOPNOTSUPP;
for (xattr = evm_config_xattrnames; *xattr != NULL; xattr++) {
error = inode->i_op->getxattr(dentry, inode, *xattr, NULL, 0);
error = __vfs_getxattr(dentry, inode, *xattr, NULL, 0);
if (error < 0) {
if (error == -ENODATA)
continue;