Allow setting per-file compression via CIFS protocol

An earlier patch allowed setting the per-file compression flag

"chattr +c filename"

on an smb2 or smb3 mount, and also allowed lsattr to return
whether a file on a cifs, or smb2/smb3 mount was compressed.

This patch extends the ability to set the per-file
compression flag to the cifs protocol, which uses a somewhat
different IOCTL mechanism than SMB2, although the payload
(the flags stored in the compression_state) are the same.

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 09ef8f322c2a..384cffe42850 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -807,6 +807,13 @@ out:
 }
 
 static int
+cifs_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
+                   struct cifsFileInfo *cfile)
+{
+        return CIFSSMB_set_compression(xid, tcon, cfile->fid.netfid);
+}
+
+static int
 cifs_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
                      const char *path, struct cifs_sb_info *cifs_sb,
                      struct cifs_fid *fid, __u16 search_flags,
@@ -956,6 +963,7 @@ struct smb_version_operations smb1_operations = {
         .set_path_size = CIFSSMBSetEOF,
         .set_file_size = CIFSSMBSetFileSize,
         .set_file_info = smb_set_file_info,
+        .set_compression = cifs_set_compression,
         .echo = CIFSSMBEcho,
         .mkdir = CIFSSMBMkDir,
         .mkdir_setinfo = cifs_mkdir_setinfo,