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author | mav <mav@FreeBSD.org> | 2016-10-11 16:52:57 +0000 |
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committer | mav <mav@FreeBSD.org> | 2016-10-11 16:52:57 +0000 |
commit | 8c2693682ba7f27f171d99852c1bf8f562cf76cc (patch) | |
tree | 9035e1743371d7f0c8be3e6cce092605bf7285a3 /sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zap_micro.c | |
parent | 6ffd7aae1ea03e042808a353ebc60bc09741acdd (diff) | |
download | FreeBSD-src-8c2693682ba7f27f171d99852c1bf8f562cf76cc.zip FreeBSD-src-8c2693682ba7f27f171d99852c1bf8f562cf76cc.tar.gz |
MFC r305200: MFV r302651:
7054 dmu_tx_hold_t should use refcount_t to track space
illumos/illumos-gate@0c779ad424a92a84d1e07d47cab7f8009189202b
https://github.com/illumos/illumos-gate/commit/0c779ad424a92a84d1e07d47cab7f8009
189202b
https://www.illumos.org/issues/7054
upstream:
ee0003de7d3e598499be7ac3fe6b61efcc47cb7f
DLPX-40399 dmu_tx_hold_t should use refcount_t to track space
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Igor Kozhukhov <ikozhukhov@gmail.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: Matthew Ahrens <mahrens@delphix.com>
Diffstat (limited to 'sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zap_micro.c')
-rw-r--r-- | sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zap_micro.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zap_micro.c b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zap_micro.c index ea3d869..fbd7e02 100644 --- a/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zap_micro.c +++ b/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zap_micro.c @@ -20,7 +20,7 @@ */ /* * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. - * Copyright (c) 2011, 2014 by Delphix. All rights reserved. + * Copyright (c) 2011, 2015 by Delphix. All rights reserved. * Copyright (c) 2014 Spectra Logic Corporation, All rights reserved. * Copyright (c) 2014 Integros [integros.com] */ @@ -1396,7 +1396,7 @@ zap_get_stats(objset_t *os, uint64_t zapobj, zap_stats_t *zs) int zap_count_write(objset_t *os, uint64_t zapobj, const char *name, int add, - uint64_t *towrite, uint64_t *tooverwrite) + refcount_t *towrite, refcount_t *tooverwrite) { zap_t *zap; int err = 0; @@ -1406,14 +1406,15 @@ zap_count_write(objset_t *os, uint64_t zapobj, const char *name, int add, * be affected in this operation. So, account for the worst case : * - 3 blocks overwritten: target leaf, ptrtbl block, header block * - 4 new blocks written if adding: - * - 2 blocks for possibly split leaves, - * - 2 grown ptrtbl blocks + * - 2 blocks for possibly split leaves, + * - 2 grown ptrtbl blocks * * This also accomodates the case where an add operation to a fairly * large microzap results in a promotion to fatzap. */ if (name == NULL) { - *towrite += (3 + (add ? 4 : 0)) * SPA_OLD_MAXBLOCKSIZE; + (void) refcount_add_many(towrite, + (3 + (add ? 4 : 0)) * SPA_OLD_MAXBLOCKSIZE, FTAG); return (err); } @@ -1437,7 +1438,8 @@ zap_count_write(objset_t *os, uint64_t zapobj, const char *name, int add, /* * We treat this case as similar to (name == NULL) */ - *towrite += (3 + (add ? 4 : 0)) * SPA_OLD_MAXBLOCKSIZE; + (void) refcount_add_many(towrite, + (3 + (add ? 4 : 0)) * SPA_OLD_MAXBLOCKSIZE, FTAG); } } else { /* @@ -1455,13 +1457,17 @@ zap_count_write(objset_t *os, uint64_t zapobj, const char *name, int add, * 4 new blocks written : 2 new split leaf, 2 grown * ptrtbl blocks */ - if (dmu_buf_freeable(zap->zap_dbuf)) - *tooverwrite += MZAP_MAX_BLKSZ; - else - *towrite += MZAP_MAX_BLKSZ; + if (dmu_buf_freeable(zap->zap_dbuf)) { + (void) refcount_add_many(tooverwrite, + MZAP_MAX_BLKSZ, FTAG); + } else { + (void) refcount_add_many(towrite, + MZAP_MAX_BLKSZ, FTAG); + } if (add) { - *towrite += 4 * MZAP_MAX_BLKSZ; + (void) refcount_add_many(towrite, + 4 * MZAP_MAX_BLKSZ, FTAG); } } |