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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/fs/cifs/smb2file.c
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/fs/cifs/smb2file.c')
-rw-r--r--kernel/fs/cifs/smb2file.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/kernel/fs/cifs/smb2file.c b/kernel/fs/cifs/smb2file.c
index 2ab297dae..f9e766f46 100644
--- a/kernel/fs/cifs/smb2file.c
+++ b/kernel/fs/cifs/smb2file.c
@@ -43,6 +43,7 @@ smb2_open_file(const unsigned int xid, struct cifs_open_parms *oparms,
struct smb2_file_all_info *smb2_data = NULL;
__u8 smb2_oplock[17];
struct cifs_fid *fid = oparms->fid;
+ struct network_resiliency_req nr_ioctl_req;
smb2_path = cifs_convert_path_to_utf16(oparms->path, oparms->cifs_sb);
if (smb2_path == NULL) {
@@ -67,6 +68,24 @@ smb2_open_file(const unsigned int xid, struct cifs_open_parms *oparms,
if (rc)
goto out;
+
+ if (oparms->tcon->use_resilient) {
+ nr_ioctl_req.Timeout = 0; /* use server default (120 seconds) */
+ nr_ioctl_req.Reserved = 0;
+ rc = SMB2_ioctl(xid, oparms->tcon, fid->persistent_fid,
+ fid->volatile_fid, FSCTL_LMR_REQUEST_RESILIENCY, true,
+ (char *)&nr_ioctl_req, sizeof(nr_ioctl_req),
+ NULL, NULL /* no return info */);
+ if (rc == -EOPNOTSUPP) {
+ cifs_dbg(VFS,
+ "resiliency not supported by server, disabling\n");
+ oparms->tcon->use_resilient = false;
+ } else if (rc)
+ cifs_dbg(FYI, "error %d setting resiliency\n", rc);
+
+ rc = 0;
+ }
+
if (buf) {
/* open response does not have IndexNumber field - get it */
rc = SMB2_get_srv_num(xid, oparms->tcon, fid->persistent_fid,