diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 64e3888f30e6d616ae78ba5f82f8ef00a261ab3e..d5457015801d8be935353826fcb1b4dbf99c56c8 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -428,6 +428,8 @@ cifs_show_options(struct seq_file *s, struct dentry *root) cifs_show_security(s, tcon->ses); cifs_show_cache_flavor(s, cifs_sb); + if (tcon->no_lease) + seq_puts(s, ",nolease"); if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MULTIUSER) seq_puts(s, ",multiuser"); else if (tcon->ses->user_name) diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index 57af9bac0045a8a33538bcb1eb57b1e4bedbefdc..4dbae6e268d6ad126c37d229b71109c9a9f839bd 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -543,6 +543,7 @@ struct smb_vol { bool noblocksnd:1; bool noautotune:1; bool nostrictsync:1; /* do not force expensive SMBflush on every sync */ + bool no_lease:1; /* disable requesting leases */ bool fsc:1; /* enable fscache */ bool mfsymlinks:1; /* use Minshall+French Symlinks */ bool multiuser:1; @@ -1004,6 +1005,7 @@ struct cifs_tcon { bool need_reopen_files:1; /* need to reopen tcon file handles */ bool use_resilient:1; /* use resilient instead of durable handles */ bool use_persistent:1; /* use persistent instead of durable handles */ + bool no_lease:1; /* Do not request leases on files or directories */ __le32 capabilities; __u32 share_flags; __u32 maximal_access; diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index c290e231f9188e5670f0e5ce150300ffea1ef50d..966e493c82e5734671fea040fb450a3c1ed6a978 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -70,7 +70,7 @@ enum { Opt_user_xattr, Opt_nouser_xattr, Opt_forceuid, Opt_noforceuid, Opt_forcegid, Opt_noforcegid, - Opt_noblocksend, Opt_noautotune, + Opt_noblocksend, Opt_noautotune, Opt_nolease, Opt_hard, Opt_soft, Opt_perm, Opt_noperm, Opt_mapposix, Opt_nomapposix, Opt_mapchars, Opt_nomapchars, Opt_sfu, @@ -129,6 +129,7 @@ static const match_table_t cifs_mount_option_tokens = { { Opt_noforcegid, "noforcegid" }, { Opt_noblocksend, "noblocksend" }, { Opt_noautotune, "noautotune" }, + { Opt_nolease, "nolease" }, { Opt_hard, "hard" }, { Opt_soft, "soft" }, { Opt_perm, "perm" }, @@ -1542,6 +1543,9 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, case Opt_noautotune: vol->noautotune = 1; break; + case Opt_nolease: + vol->no_lease = 1; + break; case Opt_hard: vol->retry = 1; break; @@ -3023,6 +3027,8 @@ static int match_tcon(struct cifs_tcon *tcon, struct smb_vol *volume_info) return 0; if (tcon->snapshot_time != volume_info->snapshot_time) return 0; + if (tcon->no_lease != volume_info->no_lease) + return 0; return 1; } @@ -3231,6 +3237,7 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb_vol *volume_info) tcon->nocase = volume_info->nocase; tcon->nohandlecache = volume_info->nohandlecache; tcon->local_lease = volume_info->local_lease; + tcon->no_lease = volume_info->no_lease; INIT_LIST_HEAD(&tcon->pending_opens); spin_lock(&cifs_tcp_ses_lock); diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index cbe633f1840a2f98c8160b1ef085678351323aae..b1f5d0d28335a1bc35ae87ec41e75a3d43ee6c95 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -2192,7 +2192,7 @@ SMB2_open_init(struct cifs_tcon *tcon, struct smb_rqst *rqst, __u8 *oplock, iov[1].iov_len = uni_path_len; iov[1].iov_base = path; - if (!server->oplocks) + if ((!server->oplocks) || (tcon->no_lease)) *oplock = SMB2_OPLOCK_LEVEL_NONE; if (!(server->capabilities & SMB2_GLOBAL_CAP_LEASING) ||