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NFSv4.1/pNFS: Add a helper to mark the layout as returned

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This ensures that we don't reuse the stateid if a layout return or
implied layout return means that we've returned all layout segments

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
This commit is contained in:
Trond Myklebust
2015-12-28 11:48:14 -05:00
parent ab7d763e47
commit 0654cc726f
4 changed files with 17 additions and 1 deletions
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3
fs/nfs/nfs4proc.c
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@@ -8049,9 +8049,10 @@ static void nfs4_layoutreturn_release(void *calldata)
dprintk("--> %s\n", __func__);
spin_lock(&lo->plh_inode->i_lock);
pnfs_mark_matching_lsegs_invalid(lo, &freeme, &lrp->args.range);
pnfs_mark_layout_returned_if_empty(lo);
if (lrp->res.lrs_present)
pnfs_set_layout_stateid(lo, &lrp->res.stateid, true);
pnfs_mark_matching_lsegs_invalid(lo, &freeme, &lrp->args.range);
pnfs_clear_layoutreturn_waitbit(lo);
lo->plh_block_lgets--;
spin_unlock(&lo->plh_inode->i_lock);