Pass in a pointer to the mirror rather than forcing another
array access.
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
---
fs/nfs/flexfilelayout/flexfilelayout.c | 8 ++------
fs/nfs/flexfilelayout/flexfilelayout.h | 7 +++----
fs/nfs/flexfilelayout/flexfilelayoutdev.c | 21 +++++----------------
3 files changed, 10 insertions(+), 26 deletions(-)
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 94515856b357..5db768924fba 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1799,9 +1799,7 @@ ff_layout_read_pagelist(struct nfs_pgio_header *hdr)
if (fh)
hdr->args.fh = fh;
- if (vers == 4 &&
- !nfs4_ff_layout_select_ds_stateid(lseg, idx, &hdr->args.stateid))
- goto out_failed;
+ nfs4_ff_layout_select_ds_stateid(mirror, &hdr->args.stateid);
/*
* Note that if we ever decide to split across DSes,
@@ -1867,9 +1865,7 @@ ff_layout_write_pagelist(struct nfs_pgio_header *hdr, int sync)
if (fh)
hdr->args.fh = fh;
- if (vers == 4 &&
- !nfs4_ff_layout_select_ds_stateid(lseg, idx, &hdr->args.stateid))
- goto out_failed;
+ nfs4_ff_layout_select_ds_stateid(mirror, &hdr->args.stateid);
/*
* Note that if we ever decide to split across DSes,
diff --git a/fs/nfs/flexfilelayout/flexfilelayout.h b/fs/nfs/flexfilelayout/flexfilelayout.h
index 99cfe2e8f32a..2f369966abf7 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.h
+++ b/fs/nfs/flexfilelayout/flexfilelayout.h
@@ -204,10 +204,9 @@ unsigned int ff_layout_fetch_ds_ioerr(struct pnfs_layout_hdr *lo,
unsigned int maxnum);
struct nfs_fh *
nfs4_ff_layout_select_ds_fh(struct nfs4_ff_layout_mirror *mirror);
-int
-nfs4_ff_layout_select_ds_stateid(struct pnfs_layout_segment *lseg,
- u32 mirror_idx,
- nfs4_stateid *stateid);
+void
+nfs4_ff_layout_select_ds_stateid(const struct nfs4_ff_layout_mirror *mirror,
+ nfs4_stateid *stateid);
struct nfs4_pnfs_ds *
nfs4_ff_layout_prepare_ds(struct pnfs_layout_segment *lseg,
diff --git a/fs/nfs/flexfilelayout/flexfilelayoutdev.c b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
index 691e8b87032b..9348a4588f55 100644
--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -357,23 +357,12 @@ nfs4_ff_layout_select_ds_fh(struct nfs4_ff_layout_mirror *mirror)
return &mirror->fh_versions[0];
}
-int
-nfs4_ff_layout_select_ds_stateid(struct pnfs_layout_segment *lseg,
- u32 mirror_idx,
- nfs4_stateid *stateid)
+void
+nfs4_ff_layout_select_ds_stateid(const struct nfs4_ff_layout_mirror *mirror,
+ nfs4_stateid *stateid)
{
- struct nfs4_ff_layout_mirror *mirror = FF_LAYOUT_COMP(lseg, mirror_idx);
-
- if (!ff_layout_mirror_valid(lseg, mirror, false)) {
- pr_err_ratelimited("NFS: %s: No data server for mirror offset index %d\n",
- __func__, mirror_idx);
- goto out;
- }
-
- nfs4_stateid_copy(stateid, &mirror->stateid);
- return 1;
-out:
- return 0;
+ if (nfs4_ff_layout_ds_version(mirror) == 4)
+ nfs4_stateid_copy(stateid, &mirror->stateid);
}
/**
--
2.20.1
