vfs_bio.c (3fb14f61e12f079b5917847a905391eabc5c9623) vfs_bio.c (f71ef9b686914af52bee614dbd0c1b9c0d2bc6cb)
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2004 Poul-Henning Kamp
5 * Copyright (c) 1994,1997 John S. Dyson
6 * Copyright (c) 2013 The FreeBSD Foundation
7 * All rights reserved.
8 *

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1651 * is less than BKVASIZE. In this case the actual wait/block will
1652 * come from buf_reycle() failing to flush one of these small bufs.
1653 */
1654 bp = NULL;
1655 freebufs = atomic_fetchadd_int(&bd->bd_freebuffers, -1);
1656 if (freebufs > 0)
1657 bp = uma_zalloc(buf_zone, M_NOWAIT);
1658 if (bp == NULL) {
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2004 Poul-Henning Kamp
5 * Copyright (c) 1994,1997 John S. Dyson
6 * Copyright (c) 2013 The FreeBSD Foundation
7 * All rights reserved.
8 *

--- 1642 unchanged lines hidden (view full) ---

1651 * is less than BKVASIZE. In this case the actual wait/block will
1652 * come from buf_reycle() failing to flush one of these small bufs.
1653 */
1654 bp = NULL;
1655 freebufs = atomic_fetchadd_int(&bd->bd_freebuffers, -1);
1656 if (freebufs > 0)
1657 bp = uma_zalloc(buf_zone, M_NOWAIT);
1658 if (bp == NULL) {
1659 atomic_fetchadd_int(&bd->bd_freebuffers, 1);
1659 atomic_add_int(&bd->bd_freebuffers, 1);
1660 bufspace_daemon_wakeup(bd);
1661 counter_u64_add(numbufallocfails, 1);
1662 return (NULL);
1663 }
1664 /*
1665 * Wake-up the bufspace daemon on transition below threshold.
1666 */
1667 if (freebufs == bd->bd_lofreebuffers)

--- 3843 unchanged lines hidden --- 		1660 bufspace_daemon_wakeup(bd);
1661 counter_u64_add(numbufallocfails, 1);
1662 return (NULL);
1663 }
1664 /*
1665 * Wake-up the bufspace daemon on transition below threshold.
1666 */
1667 if (freebufs == bd->bd_lofreebuffers)

--- 3843 unchanged lines hidden ---