LDP
/
man-pages
mirror of https://github.com/mkerrisk/man-pages
0
1
Fork 0
Code Releases Activity

loop.4: Minor tweaks to Yang Xu's patches 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2020-01-21 21:14:07 +01:00
parent eb39881da1
commit f7eff3e7e0
1 changed files with 8 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
man4/loop.4
View File

@ -155,12 +155,12 @@ This operation takes no argument.
.TP
.BR LOOP_SET_DIRECT_IO " (since Linux 4.10)"
.\" commit ab1cb278bc7027663adbfb0b81404f8398437e11
Set DIRECT IO mode on the loop device.
So it can be used to open backing file.
Set DIRECT I/O mode on the loop device, so that
it can be used to open backing file.
The (third)
.BR ioctl (2)
argument is an unsigned long value.
non-zero represents direct IO mode.
A non-zero represents direct I/O mode.
.TP
.BR LOOP_SET_BLOCK_SIZE " (since Linux 4.14)"
.\" commit 89e4fdecb51cf5535867026274bc97de9480ade5
@ -168,9 +168,11 @@ Set the block size of the loop device.
The (third)
.BR ioctl (2)
argument is an unsigned long value.
This value must be 2 to the power of N
and in range [512,pagesize].
Otherwise, it will get EINVAL error.
This value must be a power of two in the range
[512,pagesize];
otherwise, an
.B EINVAL
error results.
.PP
Since Linux 2.6, there are two new
.BR ioctl (2)