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authorSteve French <smfrench@gmail.com>2013-10-14 22:27:32 +0200
committerSteve French <smfrench@gmail.com>2013-11-02 18:52:44 +0100
commitc7f508a99bf229963915e79a603e0618d1d2ba76 (patch)
treeb2eaa3a16ccafe2aa1d28130edaa552dd900f66c /fs/cifs/smb2pdu.h
parentQuery File System Alignment (diff)
downloadlinux-c7f508a99bf229963915e79a603e0618d1d2ba76.tar.xz
linux-c7f508a99bf229963915e79a603e0618d1d2ba76.zip
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>
Diffstat (limited to 'fs/cifs/smb2pdu.h')
-rw-r--r--fs/cifs/smb2pdu.h5
1 files changed, 1 insertions, 4 deletions
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 7e44f18cc169..6183b1b7550f 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -570,12 +570,9 @@ struct network_interface_info_ioctl_rsp {
#define NO_FILE_ID 0xFFFFFFFFFFFFFFFFULL /* general ioctls to srv not to file */
struct compress_ioctl {
- __le16 CompressionState;
+ __le16 CompressionState; /* See cifspdu.h for possible flag values */
} __packed;
-#define COMPRESSION_FORMAT_NONE 0x0000
-#define COMPRESSION_FORMAT_DEFAULT 0x0001
-#define COMPRESSION_FORMAT_LZNT1 0x0002
struct smb2_ioctl_req {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 57 */