add missing setattr methods

For the new truncate sequence every filesystem that wants to truncate on-disk
state needs a seattr method.  Convert the remaining filesystems that implement
the truncate inode operation to have its own setattr method.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 12 insertions, 0 deletions

diff --git a/fs/sysv/file.c b/fs/sysv/file.c
index 750cc22349bd..94f6319292a1 100644
--- a/fs/sysv/file.c
+++ b/fs/sysv/file.c
@@ -30,7 +30,19 @@ const struct file_operations sysv_file_operations = {
         .splice_read    = generic_file_splice_read,
 };
 
+static int sysv_setattr(struct dentry *dentry, struct iattr *attr)
+{
+        struct inode *inode = dentry->d_inode;
+        int error;
+
+        error = inode_change_ok(inode, attr);
+        if (error)
+                return error;
+        return inode_setattr(inode, attr);
+}
+
 const struct inode_operations sysv_file_inode_operations = {
         .truncate       = sysv_truncate,
+        .setattr        = sysv_setattr,
         .getattr        = sysv_getattr,
 };