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SubjectRe: AZFS file system proposal
On Mon, 9 Jun 2008 06:55:30 -0600
Matthew Wilcox <matthew@wil.cx> wrote:

> On Mon, Jun 09, 2008 at 10:46:50AM +0200, Maxim Shchetynin wrote:
> > +config AZ_FS
> > + tristate "AZFS filesystem support"
> > + help
> > + Non-buffered filesystem for block devices with a gendisk and
> > + with direct_access() method in gendisk->fops.
> > + AZFS does not buffer outgoing traffic and is doing no read ahead.
> > + It supports mount options (given with -o) bs=x,uid=x,gid=x.
> > + If block-size (bs) is not specified AZFS uses block-size used
> > + by block device. Though mmap() method is available only if
> > + block-size equals to or is greater than system page size.
>
> This is a terrible description. I can't even suggest better wording
> because I don't understand it. The correct wording would not mention
> gendisks, fops or direct_access(). It would tell the user what they
> might use it for.
>

What do you think about the following - shorter description and a better place for it (moved to "Pseudo filesystems"):

--- linux-2.6.26-rc5/fs/Kconfig 2008-06-05 05:10:44.000000000 +0200
+++ linux-2.6.26-rc5-azfs/fs/Kconfig 2008-06-10 10:43:24.326686538 +0200
@@ -1017,6 +1017,19 @@
config HUGETLB_PAGE
def_bool HUGETLBFS

+config AZ_FS
+ tristate "AZFS filesystem support"
+ help
+ azfs is a file system for I/O attached memory backing. It requires
+ a block device with direct_access capability, e.g. axonram.
+ Mounting such device with azfs gives memory mapped access to the
+ underlying memory to user space.
+
+ To compile this file system support as a module, choose M here: the
+ module will be called azfs.
+
+ If unsure, say N.
+
config CONFIGFS_FS
tristate "Userspace-driven configuration filesystem"
depends on SYSFS
--
Mit freundlichen Grüßen / met vriendelijke groeten / avec regards

Maxim V. Shchetynin
Linux Kernel Entwicklung
IBM Deutschland Entwicklung GmbH
Linux für Cell, Abteilung 3250
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71032 Böblingen

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Fahr nur so schnell wie dein Schutzengel fliegen kann!
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