Date: Wed, 9 Apr 2014 10:44:09 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r264296 - head/sys/cam/ctl Message-ID: <201404091044.s39Ai9cY078285@svn.freebsd.org>
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Author: mav Date: Wed Apr 9 10:44:09 2014 New Revision: 264296 URL: http://svnweb.freebsd.org/changeset/base/264296 Log: When splitting huge unmap requests, do it on sector boundary. Modified: head/sys/cam/ctl/ctl_backend_block.c Modified: head/sys/cam/ctl/ctl_backend_block.c ============================================================================== --- head/sys/cam/ctl/ctl_backend_block.c Wed Apr 9 08:57:57 2014 (r264295) +++ head/sys/cam/ctl/ctl_backend_block.c Wed Apr 9 10:44:09 2014 (r264296) @@ -766,19 +766,21 @@ ctl_be_block_unmap_dev_range(struct ctl_ { struct bio *bio; struct ctl_be_block_devdata *dev_data; + uint64_t maxlen; dev_data = &be_lun->backend.dev; + maxlen = LONG_MAX - (LONG_MAX % be_lun->blocksize); while (len > 0) { bio = g_alloc_bio(); bio->bio_cmd = BIO_DELETE; bio->bio_flags |= beio->bio_flags; bio->bio_dev = dev_data->cdev; bio->bio_offset = off; - bio->bio_length = MIN(len, LONG_MAX); + bio->bio_length = MIN(len, maxlen); bio->bio_data = 0; bio->bio_done = ctl_be_block_biodone; bio->bio_caller1 = beio; - bio->bio_pblkno = beio->io_offset / be_lun->blocksize; + bio->bio_pblkno = off / be_lun->blocksize; off += bio->bio_length; len -= bio->bio_length;
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