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authorAndreas Gruenbacher <agruenba@redhat.com>2016-09-29 15:48:42 (GMT)
committerAl Viro <viro@zeniv.linux.org.uk>2016-10-08 00:10:44 (GMT)
commit5d6c31910bc0713e37628dc0ce677dcb13c8ccf4 (patch)
treea28f96e71f09da2fbbde50882d56e5d5657c0ede /fs/ecryptfs/mmap.c
parentf5c244383725a6de06bc62fa7c54c0ea0d942eec (diff)
downloadlinux-5d6c31910bc0713e37628dc0ce677dcb13c8ccf4.tar.xz
xattr: Add __vfs_{get,set,remove}xattr helpers
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>
Diffstat (limited to 'fs/ecryptfs/mmap.c')
-rw-r--r--fs/ecryptfs/mmap.c13
1 files changed, 6 insertions, 7 deletions
diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index 9c3437c..1f0c471 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -32,6 +32,7 @@
#include <linux/file.h>
#include <linux/scatterlist.h>
#include <linux/slab.h>
+#include <linux/xattr.h>
#include <asm/unaligned.h>
#include "ecryptfs_kernel.h"
@@ -422,7 +423,7 @@ static int ecryptfs_write_inode_size_to_xattr(struct inode *ecryptfs_inode)
struct inode *lower_inode = d_inode(lower_dentry);
int rc;
- if (!lower_inode->i_op->getxattr || !lower_inode->i_op->setxattr) {
+ if (!(lower_inode->i_opflags & IOP_XATTR)) {
printk(KERN_WARNING
"No support for setting xattr in lower filesystem\n");
rc = -ENOSYS;
@@ -436,15 +437,13 @@ static int ecryptfs_write_inode_size_to_xattr(struct inode *ecryptfs_inode)
goto out;
}
inode_lock(lower_inode);
- size = lower_inode->i_op->getxattr(lower_dentry, lower_inode,
- ECRYPTFS_XATTR_NAME,
- xattr_virt, PAGE_SIZE);
+ size = __vfs_getxattr(lower_dentry, lower_inode, ECRYPTFS_XATTR_NAME,
+ xattr_virt, PAGE_SIZE);
if (size < 0)
size = 8;
put_unaligned_be64(i_size_read(ecryptfs_inode), xattr_virt);
- rc = lower_inode->i_op->setxattr(lower_dentry, lower_inode,
- ECRYPTFS_XATTR_NAME,
- xattr_virt, size, 0);
+ rc = __vfs_setxattr(lower_dentry, lower_inode, ECRYPTFS_XATTR_NAME,
+ xattr_virt, size, 0);
inode_unlock(lower_inode);
if (rc)
printk(KERN_ERR "Error whilst attempting to write inode size "