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author | Karel Zak | 2012-09-28 01:10:08 +0200 |
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committer | Karel Zak | 2012-09-28 01:10:08 +0200 |
commit | fce05e9617b72555863153aac9950a844cca573f (patch) | |
tree | 1ae94489bdfa3d163eac8f9e5e94c1bb67f39985 /sys-utils/blkdiscard.8 | |
parent | fdisk: add GPT support (diff) | |
download | kernel-qcow2-util-linux-fce05e9617b72555863153aac9950a844cca573f.tar.gz kernel-qcow2-util-linux-fce05e9617b72555863153aac9950a844cca573f.tar.xz kernel-qcow2-util-linux-fce05e9617b72555863153aac9950a844cca573f.zip |
Revert "blkdiscard: new command"
This was only attempt as alternative implementation, unfortunately
pushed publicly... sorry.
This reverts commit c84ed54cefdcaa07f3d1f40a65434c9d4277da08.
Diffstat (limited to 'sys-utils/blkdiscard.8')
-rw-r--r-- | sys-utils/blkdiscard.8 | 66 |
1 files changed, 0 insertions, 66 deletions
diff --git a/sys-utils/blkdiscard.8 b/sys-utils/blkdiscard.8 deleted file mode 100644 index fcc38f6d2..000000000 --- a/sys-utils/blkdiscard.8 +++ /dev/null @@ -1,66 +0,0 @@ -.\" -*- nroff -*- -.TH BLKDISCARD 8 "September 2012" "util-linux" "System Administration" -.SH NAME -blkdiscard \- discard sectors on a device -.SH SYNOPSIS -.B blkdiscard -.RB [ \-o -.IR offset ] -.RB [ \-l -.IR length ] -.RB [ \-s ] -.RB [ \-v ] -.I device - -.SH DESCRIPTION -.B blkdiscard -is used to discard device sectors. This is useful for solid-state -drivers (SSDs) and thinly-provisioned storage. Unlike -.BR fstrim (8) -this command is used directly on the block device. -.PP -By default, -.B blkdiscard -will discard all blocks on the device. Options may be used to -modify this behavior based on range or size, as explained below. -.PP -The -.I device -argument is the pathname of the block device. - -.B WARNING: All data in the discarded region on the device will be lost! - -.SH OPTIONS -The \fIoffset\fR and \fIlength\fR arguments may be -followed by the multiplicative suffixes KiB=1024, MiB=1024*1024, and so on for -GiB, TiB, PiB, EiB, ZiB and YiB (the "iB" is optional, e.g. "K" has the same -meaning as "KiB") or the suffixes KB=1000, MB=1000*1000, and so on for GB, PB, -EB, ZB and YB. -.IP "\fB\-h, \-\-help\fP" -Print help and exit. -.IP "\fB\-o, \-\-offset\fP \fIoffset\fP" -Byte offset in the device from which to discard. Provided value will be -aligned to the device sector size. Default value is zero. -.IP "\fB\-l, \-\-length\fP \fIlength\fP" -Number of bytes after starting point to discard. Provided value will be -aligned to the device sector size. If the specified value extends past the -end of the device, -.B blkdiscard -will stop at the device size boundary. Default value extends to the end -of the device. -.IP "\fB\-s, \-\-secure\fP" -Perform secure discard. Secure discard is the same as regular discard except -all copies of the discarded blocks possibly created by garbage collection must -also be erased. It has to be supported by the device. -.IP "\fB\-v, \-\-verbose\fP" -Print aligned \fIoffset\fR and \fIlength\fR arguments. - -.SH AUTHOR -.nf -Lukas Czerner <lczerner@redhat.com> -.fi -.SH SEE ALSO -.BR fstrim (8) -.SH AVAILABILITY -The blkdiscard command is part of the util-linux package and is available -from ftp://ftp.kernel.org/pub/linux/utils/util-linux/. |