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NFS/flexfiles: Simplify nfs4_ff_layout_select_ds_fh()

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Pass in a pointer to the mirror rather than having to retrieve it from
the array and then verify the resulting pointer.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust
2019-02-28 10:34:13 -05:00
parent 76c6690522
commit 749da527b3
3 changed files with 5 additions and 16 deletions
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15
fs/nfs/flexfilelayout/flexfilelayoutdev.c
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@@ -351,21 +351,10 @@ ff_layout_get_mirror_cred(struct nfs4_ff_layout_mirror *mirror, u32 iomode)
}
struct nfs_fh *
nfs4_ff_layout_select_ds_fh(struct pnfs_layout_segment *lseg, u32 mirror_idx)
nfs4_ff_layout_select_ds_fh(struct nfs4_ff_layout_mirror *mirror)
{
struct nfs4_ff_layout_mirror *mirror = FF_LAYOUT_COMP(lseg, mirror_idx);
struct nfs_fh *fh = NULL;
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;
}
/* FIXME: For now assume there is only 1 version available for the DS */
fh = &mirror->fh_versions[0];
out:
return fh;
return &mirror->fh_versions[0];
}
int