fs nfs: depend on net ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: fix standard zero, full devices ...

The standard devices are currently broken since they have
the size ~0. As now files use loff_t as file size which is a signed
type the read implementation gets confused and now returns -1.

The current implementation also has the (somewhat theorical) problem
that we do not have real streaming devices, so /dev/zero went out
of zeroes after reading 4GB (or now LLONG_MAX).

This patch introduces a new cdev flag DEVFS_IS_CHARACTER_DEV and a new
file size flag FILE_SIZE_STREAM which makes it possible to create
real stream devices instead.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'for-next/resource-size' ...

Conflicts:
	drivers/base/resource.c
	fs/fs.c

Merge branch 'for-next/fs'

Merge branch 'for-next/sparse'

Merge branch 'for-next/misc'

resource: store 'end' instead of 'size' in struct resource ...

Storing the size instead of the resource end in struct resource was
a mistake. 'size' ranges from 0 to UINT[32|64]_MAX + 1 which obviously
leads to problems. 'end' on the other hand will never exceed
UINT[32|64]_MAX. Also this way we can express a iomem region covering
the whole address space.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs FAT: fix warning: Using plain integer as NULL pointer ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: Fix file create bug when parent is not a directory ...

When creating a file or a directory we have to check if the parent
is actually a directory. Otherwise trying it results in a crash.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

partitions: Make 64bit capable ...

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

make cdev 64bit capable ...

Next step to 64bit support: Make cdev size a 64bit type.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

use loff_t for file offsets ...

This is a first step for 64bit file support: Make the file sizes/offsets
64bit.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

mtd: fix arguments to bad block ioctls ...

In the Kernel the mtd ioctls expect a pointer to the offset, whereas
barebox interprets the pointer itself as an offset. Since we want
to add 64bit support for file sizes a pointer may not be sufficient,
so align with the kernel and convert it to a pointer to the offset.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs/devfs.c: disallow write and erase if a partition is read-only ...

Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs tftp: Fix short file transfers ...

With files smaller than the tftp block size the whole transfer is done
in tftp_do_open already. In this case we are in STATE_DONE, but there
is no error. Set priv->err to 0 and check for it to be able to transfer
small files.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: limit flash erase and protect to the partiton boundary ...

Passing a too large size or offset to erase could
affect flash outside the partition boundary.
Addresses for SPI flash wrap around, thus giving a
count + offset going past the end of the flash would
wrap around and erase flash at offset 0.

Add the same check for protect.

Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

devfs: don't erase past the end of the partition ...

"erase /dev/myflash0.mypart 0xf0000+0xf0000" could erase past
the end of the partition.

Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Merge branch 'next'

fs tftp: depend on NET, not on NET_TFTP ...

The tftp filesystem support is by no means dependent on the old tftp
support, it depends on NET though.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

lseek: return -1 instead of -errno ...

The patch making errno a positive value has another bug:
lseek was switched to return -errno instead of -1. This does not
work since we can lseek we can address the whole 4G address space,
have of which has a negative offset when interpreted as a signed
integer. Let lseek return -1 on failure again instead.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs/tftp: depend on NET_TFTP ...

else the option remains selected when network gets disabled

Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

ramfs: rember last accessed chunk ...

Writing big files takes longer and longer because of the chunk list
By storing a pointer of the recent used chunk in the inode, access times are
improved.
Testet on with tftp 10M:
OMAP4 chunk size 4096: 12244ms 8192: 4239ms
	patched        2647ms        2785ms
i.MX35 chunk size 8192: 7225ms
	patched		2691ms

No impact on much smaller files seen

Signed-off-by: Jan Weitzel <j.weitzel@phytec.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs readdir: check for NULL pointer again ...

This got lost in:

commit 6188685
Author: Sascha Hauer <s.hauer@pengutronix.de>
Date:   Sun May 13 12:43:58 2012 +0200

    Make errno a positive value

    Normally errno contains a positive error value. A certain unnamed developer
    mixed this up while implementing U-Boot-v2. Also, normally errno is never
    set to zero by any library function.
    This patch fixes this.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs: Add NFS support ...

This patch adds readonly NFS support. Currently no links are supported.
This is based on the previous U-Boot/NetBSD based code and some Kernel
bits.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Make errno a positive value ...

Normally errno contains a positive error value. A certain unnamed developer
mixed this up while implementing U-Boot-v2. Also, normally errno is never
set to zero by any library function.
This patch fixes this.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

complete: add delpart complete support ...

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

Merge branch 'work/dns' into next

automount: remove existing automountpoint ...

Before creating a new mountpoint on an already existing mountpoint
we have to remove it.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

fs tftp: use resolv to resolv ip address ...

instead of assuming the backingstore is a ip address, use resolv()
to make it possible to pass in a hostname.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

automount: Pass automount pass as environment variable ...

This makes it possible to pass a command sequence to the automount
command instead of only a script (a command sequence would get confused
by the additional argument)

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>