On Fri, Jan 21, 2000 at 02:37:26PM +0000, Alan Cox wrote:
> > Is there a kernel compiling option I missed which tells the kernel to
> > remove the reading buffers after every umount, and if so, which one?
>
> There isnt. There is however an ioctl for it. Have a look at man hdparm
These days (that is, since 2.10) util-linux comes with blockdev, a utility
to do block-device iocts by hand.
# ./blockdev -?
Usage: blockdev [-V] [-v|-q] commands devices
Available commands:
--setro (set read-only)
--setrw (set read-write)
--getro (get read-only)
--getss (get sectorsize)
--getsize (get size)
--setra READAHEAD (set readahead)
--getra (get readahead)
--flushbufs (flush buffers)
--rereadpt (reread partition table)
#
Especially --flushbufs is often needed in scripts that
manipulate loop devices or partition tables.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.rutgers.edu
Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sun Jan 23 2000 - 21:00:26 EST