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| author | Doug Moore <dougm@FreeBSD.org> | 2019-06-22 03:16:01 +0000 |
|---|---|---|
| committer | Doug Moore <dougm@FreeBSD.org> | 2019-06-22 03:16:01 +0000 |
| commit | a616b25342fe1ceaa2bb7c68d9791f6586656fed (patch) | |
| tree | ac967fdccd994b44abc70806ef55ee8295961017 /sbin/swapon/swapon.8 | |
| parent | df8406543fab98a6706bb41f3093863b93d92b91 (diff) | |
| download | src-a616b25342fe1ceaa2bb7c68d9791f6586656fed.tar.gz src-a616b25342fe1ceaa2bb7c68d9791f6586656fed.zip | |
Modify swapon(8) to invoke BIO_DELETE to trim swap devices, either if
'-E' appears on the swapon command line, or if "trimonce" appears as
an fstab option.
Discussed at: BSDCAN
Tested by: markj
Reviewed by: markj
Approved by: markj (mentor)
Differential Revision:https://reviews.freebsd.org/D20599
Notes
Notes:
svn path=/head/; revision=349286
Diffstat (limited to 'sbin/swapon/swapon.8')
| -rw-r--r-- | sbin/swapon/swapon.8 | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/sbin/swapon/swapon.8 b/sbin/swapon/swapon.8 index 058f681ce5ce..f69dd484a93b 100644 --- a/sbin/swapon/swapon.8 +++ b/sbin/swapon/swapon.8 @@ -28,7 +28,7 @@ .\" @(#)swapon.8 8.1 (Berkeley) 6/5/93 .\" $FreeBSD$ .\" -.Dd October 21, 2016 +.Dd June 21, 2019 .Dt SWAPON 8 .Os .Sh NAME @@ -38,7 +38,7 @@ .Nm swapon .Oo Fl F Ar fstab .Oc -.Fl aLq | Ar +.Fl aLq | E Ar .Nm swapoff .Oo Fl F Ar fstab .Oc @@ -86,6 +86,11 @@ If the option is used, informational messages will not be written to standard output when a swap device is added. +The +.Fl E +option causes each of following devices to receive a +.Dv BIO_DELETE +command to mark all blocks as unused. .Pp The .Nm swapoff |