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blockdev: add note about --setbsz usability 

Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Karel Zak 2013-10-11 11:16:23 +02:00
parent 39d2e7067d
commit 7ab32ae64d
2 changed files with 4 additions and 2 deletions
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4
disk-utils/blockdev.8
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@ -68,7 +68,9 @@ Get size in 512-byte sectors.
.IP "\fB\-\-rereadpt\fP"
Reread partition table
.IP "\fB\-\-setbsz\fP \fIbytes\fP"
Set blocksize.
Set blocksize. Note that the block size is specific to the current file
descriptor opening the block device, so the change of block size only persists
for as long as blockdev has the device open, and is lost once blockdev exits.
.IP "\fB\-\-setfra\fP \fIsectors\fP"
Set filesystem readahead (same like --setra on 2.6 kernels).
.IP "\fB\-\-setra\fP \fIsectors\fP"

2
disk-utils/blockdev.c
View File

@ -127,7 +127,7 @@ static const struct bdc bdcms[] =
.argname = "<bytes>",
.argtype = ARG_INT,
.flags = FL_NORESULT,
.help = N_("set blocksize")
.help = N_("set blocksize on file descriptor opening the block device")
},{
IOCTL_ENTRY(BLKGETSIZE),
.name = "--getsize",