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| author | Peng Tao | 2014-11-10 01:35:35 +0100 |
|---|---|---|
| committer | Tom Haynes | 2015-02-03 20:06:48 +0100 |
| commit | 48d635f14a544c2b3ca870d2c7349b41160496d2 (patch) | |
| tree | 3482ecc1445a13fb60941213930078da302869ff /fs/nfs/internal.h | |
| parent | nfs: only reset desc->pg_mirror_idx when mirroring is supported (diff) | |
| download | kernel-qcow2-linux-48d635f14a544c2b3ca870d2c7349b41160496d2.tar.gz kernel-qcow2-linux-48d635f14a544c2b3ca870d2c7349b41160496d2.tar.xz kernel-qcow2-linux-48d635f14a544c2b3ca870d2c7349b41160496d2.zip | |
nfs: add nfs_pgio_current_mirror helper
Let it return current nfs_pgio_mirror in use depending on pg_mirror_count.
For read, we always use pg_mirrors[0], so this effectively gives us freedom
to use pg_mirror_idx to track the actual mirror to read from through out the
IO stack.
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 | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h index 5be06bcafa2f..ffe4b7ac9e6b 100644 --- a/fs/nfs/internal.h +++ b/fs/nfs/internal.h @@ -255,6 +255,8 @@ int nfs_initiate_pgio(struct rpc_clnt *clnt, struct nfs_pgio_header *hdr, struct rpc_cred *cred, const struct nfs_rpc_ops *rpc_ops, const struct rpc_call_ops *call_ops, int how, int flags); void nfs_free_request(struct nfs_page *req); +struct nfs_pgio_mirror * +nfs_pgio_current_mirror(struct nfs_pageio_descriptor *desc); static inline void nfs_iocounter_init(struct nfs_io_counter *c) { |