From 47af81f29556a45493e5c87289c3c16ce911096c Mon Sep 17 00:00:00 2001 From: Peng Tao Date: Mon, 10 Nov 2014 08:35:34 +0800 Subject: nfs: only reset desc->pg_mirror_idx when mirroring is supported so that we don't reset desc->pg_mirror_idx for read unnecessarily. Remove WARN_ON_ONCE from __nfs_pageio_add_request to allow LD to set pg_mirror_idx for read where pg_mirror_count is always 1. Signed-off-by: Peng Tao Signed-off-by: Tom Haynes --- fs/nfs/internal.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'fs/nfs/internal.h') diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index ef1c703e487b..5be06bcafa2f 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -6,6 +6,7 @@ #include #include #include +#include #define NFS_MS_MASK (MS_RDONLY|MS_NOSUID|MS_NODEV|MS_NOEXEC|MS_SYNCHRONOUS) @@ -261,6 +262,12 @@ static inline void nfs_iocounter_init(struct nfs_io_counter *c) atomic_set(&c->io_count, 0); } +static inline bool nfs_pgio_has_mirroring(struct nfs_pageio_descriptor *desc) +{ + WARN_ON_ONCE(desc->pg_mirror_count < 1); + return desc->pg_mirror_count > 1; +} + /* nfs2xdr.c */ extern struct rpc_procinfo nfs_procedures[]; extern int nfs2_decode_dirent(struct xdr_stream *, -- cgit v1.2.3-70-g09d2