If we are using v4.1+, then we can send notification when contended locks become free. Inform the client of that fact. Signed-off-by: Jeff Layton <jlayton@xxxxxxxxxx> --- fs/nfsd/nfs4state.c | 6 ++++-- include/uapi/linux/nfs4.h | 5 +++-- 2 files changed, 7 insertions(+), 4 deletions(-) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index 6a81e6b86438..3cfb4c326060 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -4493,9 +4493,11 @@ out: * To finish the open response, we just need to set the rflags. */ open->op_rflags = NFS4_OPEN_RESULT_LOCKTYPE_POSIX; - if (!(open->op_openowner->oo_flags & NFS4_OO_CONFIRMED) && - !nfsd4_has_session(&resp->cstate)) + if (nfsd4_has_session(&resp->cstate)) + open->op_rflags |= NFS4_OPEN_RESULT_MAY_NOTIFY_LOCK; + else if (!(open->op_openowner->oo_flags & NFS4_OO_CONFIRMED)) open->op_rflags |= NFS4_OPEN_RESULT_CONFIRM; + if (dp) nfs4_put_stid(&dp->dl_stid); if (stp) diff --git a/include/uapi/linux/nfs4.h b/include/uapi/linux/nfs4.h index 2b871e0858d9..4ae62796bfde 100644 --- a/include/uapi/linux/nfs4.h +++ b/include/uapi/linux/nfs4.h @@ -39,8 +39,9 @@ #define NFS4_FH_VOL_MIGRATION 0x0004 #define NFS4_FH_VOL_RENAME 0x0008 -#define NFS4_OPEN_RESULT_CONFIRM 0x0002 -#define NFS4_OPEN_RESULT_LOCKTYPE_POSIX 0x0004 +#define NFS4_OPEN_RESULT_CONFIRM 0x0002 +#define NFS4_OPEN_RESULT_LOCKTYPE_POSIX 0x0004 +#define NFS4_OPEN_RESULT_MAY_NOTIFY_LOCK 0x0020 #define NFS4_SHARE_ACCESS_MASK 0x000F #define NFS4_SHARE_ACCESS_READ 0x0001 -- 2.7.4 -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
