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pNFS: Do not set plh_return_seq for non-callback related layoutreturns

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In cases where we need to send a layoutreturn in order to propagate
an error, we should not tie that to a specific layout stateid.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust 2016-07-21 13:06:18 -04:00
parent e5fd1904b8
commit 2d6cf5ab0b
1 changed files with 6 additions and 7 deletions
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13
fs/nfs/pnfs.c
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@ -1808,14 +1808,14 @@ static void
pnfs_set_plh_return_info(struct pnfs_layout_hdr *lo, enum pnfs_iomode iomode,
u32 seq)
{
if (lo->plh_return_iomode == iomode)
return;
if (lo->plh_return_iomode != 0)
if (lo->plh_return_iomode != 0 && lo->plh_return_iomode != iomode)
iomode = IOMODE_ANY;
lo->plh_return_iomode = iomode;
set_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags);
if (!lo->plh_return_seq || pnfs_seqid_is_newer(seq, lo->plh_return_seq))
if (seq != 0) {
WARN_ON_ONCE(lo->plh_return_seq != 0 && lo->plh_return_seq != seq);
lo->plh_return_seq = seq;
}
}
/**
@ -1876,14 +1876,13 @@ void pnfs_error_mark_layout_for_return(struct inode *inode,
bool return_now = false;
spin_lock(&inode->i_lock);
pnfs_set_plh_return_info(lo, range.iomode, lseg->pls_seq);
pnfs_set_plh_return_info(lo, range.iomode, 0);
/*
* mark all matching lsegs so that we are sure to have no live
* segments at hand when sending layoutreturn. See pnfs_put_lseg()
* for how it works.
*/
if (!pnfs_mark_matching_lsegs_return(lo, &free_me,
&range, lseg->pls_seq)) {
if (!pnfs_mark_matching_lsegs_return(lo, &free_me, &range, 0)) {
nfs4_stateid stateid;
enum pnfs_iomode iomode;