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authorSteve French <smfrench@gmail.com>2015-06-24 11:17:02 +0300
committerSteve French <steve.french@primarydata.com>2015-06-29 05:15:45 +0300
commitb3152e2c7aa9ad0c50085738d048fbf16d01d32d (patch)
tree2015cead72bda343290909c2187cf3039171d53b /fs/cifs/ioctl.c
parent9d1b06602eb6716220c5988735c0b4944d62abaa (diff)
downloadlinux-b3152e2c7aa9ad0c50085738d048fbf16d01d32d.tar.xz
Add ioctl to set integrity
set integrity increases reliability of files stored on SMB3 servers. Add ioctl to allow setting this on files on SMB3 and later mounts. Signed-off-by: Steve French <steve.french@primarydata.com>
Diffstat (limited to 'fs/cifs/ioctl.c')
-rw-r--r--fs/cifs/ioctl.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 7843b19ef5be..49b8b6e41a18 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -35,6 +35,7 @@
#define CIFS_IOCTL_MAGIC 0xCF
#define CIFS_IOC_COPYCHUNK_FILE _IOW(CIFS_IOCTL_MAGIC, 3, int)
+#define CIFS_IOC_SET_INTEGRITY _IO(CIFS_IOCTL_MAGIC, 4)
static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
unsigned long srcfd, u64 off, u64 len, u64 destoff,
@@ -217,6 +218,16 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
case BTRFS_IOC_CLONE:
rc = cifs_ioctl_clone(xid, filep, arg, 0, 0, 0, true);
break;
+ case CIFS_IOC_SET_INTEGRITY:
+ if (pSMBFile == NULL)
+ break;
+ tcon = tlink_tcon(pSMBFile->tlink);
+ if (tcon->ses->server->ops->set_integrity)
+ rc = tcon->ses->server->ops->set_integrity(xid,
+ tcon, pSMBFile);
+ else
+ rc = -EOPNOTSUPP;
+ break;
default:
cifs_dbg(FYI, "unsupported ioctl\n");
break;