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NFSv4.2 fix async copy reboot recovery

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Original commit (e4648aa4f9 "NFS recover from destination server
reboot for copies") used memcmp() and then it was changed to use
nfs4_stateid_match_other() but that function returns opposite of
memcmp. As the result, recovery can't find the copy leading
to copy hanging.

Fixes: 80f4236886 ("NFSv4: Split out NFS v4.2 copy completion functions")
Fixes: cb7a8384dc ("NFS: Split out the body of nfs4_reclaim_open_state")
Signed-of-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Olga Kornievskaia 2018-12-06 11:10:36 -05:00 committed by Anna Schumaker
parent f85adb1bf5
commit 9aeaf8cfcb
1 changed files with 1 additions and 1 deletions
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fs/nfs/nfs4state.c
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@ -1555,7 +1555,7 @@ static void nfs42_complete_copies(struct nfs4_state_owner *sp, struct nfs4_state
spin_lock(&sp->so_server->nfs_client->cl_lock);
list_for_each_entry(copy, &sp->so_server->ss_copies, copies) {
if (nfs4_stateid_match_other(&state->stateid, &copy->parent_state->stateid))
if (!nfs4_stateid_match_other(&state->stateid, &copy->parent_state->stateid))
continue;
copy->flags = 1;
complete(&copy->completion);