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| author | Peng Tao | 2014-11-10 01:35:34 +0100 |
|---|---|---|
| committer | Tom Haynes | 2015-02-03 20:06:47 +0100 |
| commit | 47af81f29556a45493e5c87289c3c16ce911096c (patch) | |
| tree | 94817ece21bb4b4b2933579417cd2da47d71c684 /fs/nfs/internal.h | |
| parent | nfs41: add a debug warning if we destroy an unempty layout (diff) | |
| download | kernel-qcow2-linux-47af81f29556a45493e5c87289c3c16ce911096c.tar.gz kernel-qcow2-linux-47af81f29556a45493e5c87289c3c16ce911096c.tar.xz kernel-qcow2-linux-47af81f29556a45493e5c87289c3c16ce911096c.zip | |
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 <tao.peng@primarydata.com>
Signed-off-by: Tom Haynes <loghyr@primarydata.com>
Diffstat (limited to 'fs/nfs/internal.h')
| -rw-r--r-- | fs/nfs/internal.h | 7 |
1 files changed, 7 insertions, 0 deletions
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 <linux/mount.h> #include <linux/security.h> #include <linux/crc32.h> +#include <linux/nfs_page.h> #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 *, |