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pNFS: Clear NFS_LAYOUT_RETURN_REQUESTED when invalidating the layout stateid 

We must ensure that we don't schedule a layoutreturn if the layout stateid
has been marked as invalid.

Fixes: 2a59a04116 ("pNFS: Fix pnfs_set_layout_stateid() to clear...")
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Cc: stable@vger.kernel.org # v4.8+
This commit is contained in:
Trond Myklebust 2016-11-14 14:34:18 -05:00
parent 7b650994ab
commit ae5a459d5f
1 changed files with 9 additions and 8 deletions
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17
fs/nfs/pnfs.c
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@ -299,6 +299,14 @@ pnfs_put_layout_hdr(struct pnfs_layout_hdr *lo)
}
}
static void
pnfs_clear_layoutreturn_info(struct pnfs_layout_hdr *lo)
{
lo->plh_return_iomode = 0;
lo->plh_return_seq = 0;
clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags);
}
/*
* Mark a pnfs_layout_hdr and all associated layout segments as invalid
*
@ -317,6 +325,7 @@ pnfs_mark_layout_stateid_invalid(struct pnfs_layout_hdr *lo,
};
set_bit(NFS_LAYOUT_INVALID_STID, &lo->plh_flags);
pnfs_clear_layoutreturn_info(lo);
return pnfs_mark_matching_lsegs_invalid(lo, lseg_list, &range, 0);
}
@ -818,14 +827,6 @@ pnfs_destroy_all_layouts(struct nfs_client *clp)
pnfs_destroy_layouts_byclid(clp, false);
}
static void
pnfs_clear_layoutreturn_info(struct pnfs_layout_hdr *lo)
{
lo->plh_return_iomode = 0;
lo->plh_return_seq = 0;
clear_bit(NFS_LAYOUT_RETURN_REQUESTED, &lo->plh_flags);
}
/* update lo->plh_stateid with new if is more recent */
void
pnfs_set_layout_stateid(struct pnfs_layout_hdr *lo, const nfs4_stateid *new,