Date: Wed, 29 Dec 2010 12:25:28 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sys/ufs/ffs ffs_alloc.c ffs_vfsops.c fs.h src/sys/ufs/ufs ufsmount.h Message-ID: <201012291225.oBTCPhZL090762@repoman.freebsd.org>
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kib 2010-12-29 12:25:28 UTC
FreeBSD src repository
Modified files:
sys/ufs/ffs ffs_alloc.c ffs_vfsops.c fs.h
sys/ufs/ufs ufsmount.h
Log:
SVN rev 216796 on 2010-12-29 12:25:28Z by kib
Add kernel side support for BIO_DELETE/TRIM on UFS.
The FS_TRIM fs flag indicates that administrator requested issuing of
TRIM commands for the volume. UFS will only send the command to disk
if the disk reports GEOM::candelete attribute.
Since disk queue is reordered, data block is marked as free in the bitmap
only after TRIM command completed. Due to need to sleep waiting for
i/o to finish, TRIM bio_done routine schedules taskqueue to set the
bitmap bit.
Based on the patch by: mckusick
Reviewed by: mckusick, pjd
Tested by: pho
MFC after: 1 month
Revision Changes Path
1.160 +100 -2 src/sys/ufs/ffs/ffs_alloc.c
1.380 +15 -0 src/sys/ufs/ffs/ffs_vfsops.c
1.58 +1 -0 src/sys/ufs/ffs/fs.h
1.43 +1 -0 src/sys/ufs/ufs/ufsmount.h
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