cifs: fix incorrect handling of smb2_set_sparse() return in smb3_simple_falloc
smb2_set_sparse does not return -errno, it returns a boolean where
true means success.
Change this to just ignore the return value just like the other callsites.
Additionally add code to handle the case where we must set the file sparse
and possibly also extending it.
Fixes xfstests: generic/236 generic/350 generic/420
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 9a7164c..1c8d368 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -2718,6 +2718,7 @@
struct cifsFileInfo *cfile = file->private_data;
long rc = -EOPNOTSUPP;
unsigned int xid;
+ __le64 eof;
xid = get_xid();
@@ -2777,9 +2778,18 @@
return rc;
}
- rc = smb2_set_sparse(xid, tcon, cfile, inode, false);
+ smb2_set_sparse(xid, tcon, cfile, inode, false);
+ rc = 0;
+ } else {
+ smb2_set_sparse(xid, tcon, cfile, inode, false);
+ rc = 0;
+ if (i_size_read(inode) < off + len) {
+ eof = cpu_to_le64(off + len);
+ rc = SMB2_set_eof(xid, tcon, cfile->fid.persistent_fid,
+ cfile->fid.volatile_fid, cfile->pid,
+ &eof);
+ }
}
- /* BB: else ... in future add code to extend file and set sparse */
if (rc)
trace_smb3_falloc_err(xid, cfile->fid.persistent_fid, tcon->tid,