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| author | trasz <trasz@FreeBSD.org> | 2016-04-19 15:08:35 +0000 |
|---|---|---|
| committer | trasz <trasz@FreeBSD.org> | 2016-04-19 15:08:35 +0000 |
| commit | 41d99db047ce9bdf5f871128e665fdbfb8ca0e9a (patch) | |
| tree | e3f57cd843a68680fba44aa9c5fa2720308498b5 /sbin/tunefs | |
| parent | cf2857955cc43bf478bbb4716641d15ea01fa1a7 (diff) | |
| download | FreeBSD-src-41d99db047ce9bdf5f871128e665fdbfb8ca0e9a.zip FreeBSD-src-41d99db047ce9bdf5f871128e665fdbfb8ca0e9a.tar.gz | |
Mention fsck_ffs -E in tunefs(8). It's non-obvious that one should
use it after enabling TRIM.
Reviewed by: brueffer@
MFC after: 1 month
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D5928
Diffstat (limited to 'sbin/tunefs')
| -rw-r--r-- | sbin/tunefs/tunefs.8 | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sbin/tunefs/tunefs.8 b/sbin/tunefs/tunefs.8 index a58c174..2abe076 100644 --- a/sbin/tunefs/tunefs.8 +++ b/sbin/tunefs/tunefs.8 @@ -28,7 +28,7 @@ .\" @(#)tunefs.8 8.2 (Berkeley) 12/11/93 .\" $FreeBSD$ .\" -.Dd June 22, 2011 +.Dd April 19, 2016 .Dt TUNEFS 8 .Os .Sh NAME @@ -166,9 +166,15 @@ device for each freed block. The trim enable flag is typically set when the underlying device uses flash-memory as the device can use the delete command to pre-zero or at least avoid copying blocks that have been deleted. +.Pp +Note that this does not trim blocks that are already free. +See the +.Xr fsck_ffs 8 +.Fl E +flag. .El .Pp -At least one of the above flags is required. +At least one of these flags is required. .Sh FILES .Bl -tag -width ".Pa /etc/fstab" .It Pa /etc/fstab |
