CIFS: Add strictcache mount option

[karo-tx-linux.git] / fs / cifs / connect.c

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 0cc3b81c2e8441075af2583cf2575615751b4599..47034af67b094b0bc37e682f2ab366683f43bb1e 100644 (file)
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -87,6 +87,7 @@ struct smb_vol {
        bool no_xattr:1;   /* set if xattr (EA) support should be disabled*/
        bool server_ino:1; /* use inode numbers from server ie UniqueId */
        bool direct_io:1;
+       bool strict_io:1; /* strict cache behavior */
        bool remap:1;      /* set to remap seven reserved chars in filenames */
        bool posix_paths:1; /* unset to not ask for posix pathnames. */
        bool no_linux_ext:1;
@@ -1344,6 +1345,8 @@ cifs_parse_mount_options(char *options, const char *devname,
                        vol->direct_io = 1;
                } else if (strnicmp(data, "forcedirectio", 13) == 0) {
                        vol->direct_io = 1;
+               } else if (strnicmp(data, "strictcache", 11) == 0) {
+                       vol->strict_io = 1;
                } else if (strnicmp(data, "noac", 4) == 0) {
                        printk(KERN_WARNING "CIFS: Mount option noac not "
                                "supported. Instead set "
@@ -2584,6 +2587,8 @@ static void setup_cifs_sb(struct smb_vol *pvolume_info,
        if (pvolume_info->multiuser)
                cifs_sb->mnt_cifs_flags |= (CIFS_MOUNT_MULTIUSER |
                                            CIFS_MOUNT_NO_PERM);
+       if (pvolume_info->strict_io)
+               cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_STRICT_IO;
        if (pvolume_info->direct_io) {
                cFYI(1, "mounting share using direct i/o");
                cifs_sb->mnt_cifs_flags |= CIFS_MOUNT_DIRECT_IO;