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NFSv4: Ensure layout headers are RCU safe

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Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust
2020-02-18 17:14:40 -05:00
parent d911c57a19
commit cf6605d194
5 changed files with 13 additions and 11 deletions
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6
fs/nfs/flexfilelayout/flexfilelayout.c
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@@ -59,14 +59,14 @@ ff_layout_alloc_layout_hdr(struct inode *inode, gfp_t gfp_flags)
static void
ff_layout_free_layout_hdr(struct pnfs_layout_hdr *lo)
{
struct nfs4_flexfile_layout *ffl = FF_LAYOUT_FROM_HDR(lo);
struct nfs4_ff_layout_ds_err *err, *n;
list_for_each_entry_safe(err, n, &FF_LAYOUT_FROM_HDR(lo)->error_list,
list) {
list_for_each_entry_safe(err, n, &ffl->error_list, list) {
list_del(&err->list);
kfree(err);
}
kfree(FF_LAYOUT_FROM_HDR(lo));
kfree_rcu(ffl, generic_hdr.plh_rcu);
}
static int decode_pnfs_stateid(struct xdr_stream *xdr, nfs4_stateid *stateid)