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| author | Trond Myklebust <trond.myklebust@hammerspace.com> | 2019-02-28 10:49:11 -0500 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@hammerspace.com> | 2019-03-01 22:37:38 -0500 |
| commit | 4cbc8a571c24133a8b645c62188205908ef2ea83 (patch) | |
| tree | cf52748dad0dabd591d1e788a33473d90afbd02e /fs/nfs/flexfilelayout | |
| parent | 626d48b12cde3ae9740e1da16fc9c1d6d7bbed14 (diff) | |
| download | linux-stable-4cbc8a571c24133a8b645c62188205908ef2ea83.tar.gz linux-stable-4cbc8a571c24133a8b645c62188205908ef2ea83.tar.bz2 linux-stable-4cbc8a571c24133a8b645c62188205908ef2ea83.zip | |
NFS/flexfile: Simplify nfs4_ff_layout_select_ds_stateid()
Pass in a pointer to the mirror rather than forcing another
array access.
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Diffstat (limited to 'fs/nfs/flexfilelayout')
| -rw-r--r-- | fs/nfs/flexfilelayout/flexfilelayout.c | 8 | ||||
| -rw-r--r-- | fs/nfs/flexfilelayout/flexfilelayout.h | 7 | ||||
| -rw-r--r-- | 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 650df8d109a1..f9264e1922a2 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 1673935074cc..d8ef4042f25a 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); } /** |