hw/9pfs: Fix assert when disabling migration
For 9p we can get the attach request multiple times for the same export. So don't adding migration blocker for every attach request. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
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@ -983,11 +983,16 @@ static void v9fs_attach(void *opaque)
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err += offset;
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err += offset;
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trace_v9fs_attach_return(pdu->tag, pdu->id,
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trace_v9fs_attach_return(pdu->tag, pdu->id,
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qid.type, qid.version, qid.path);
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qid.type, qid.version, qid.path);
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/*
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* disable migration if we haven't done already.
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* attach could get called multiple times for the same export.
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*/
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if (!s->migration_blocker) {
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s->root_fid = fid;
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s->root_fid = fid;
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/* disable migration */
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error_set(&s->migration_blocker, QERR_VIRTFS_FEATURE_BLOCKS_MIGRATION,
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error_set(&s->migration_blocker, QERR_VIRTFS_FEATURE_BLOCKS_MIGRATION,
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s->ctx.fs_root ? s->ctx.fs_root : "NULL", s->tag);
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s->ctx.fs_root ? s->ctx.fs_root : "NULL", s->tag);
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migrate_add_blocker(s->migration_blocker);
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migrate_add_blocker(s->migration_blocker);
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}
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out:
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out:
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put_fid(pdu, fidp);
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put_fid(pdu, fidp);
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out_nofid:
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out_nofid:
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