linux.git/drivers/mtd/devices, branch v3.8-rc2 Linux kernel source tree mtd: block2mtd: throttle writes by calling balance_dirty_pages_ratelimited. 2012-12-13T11:39:44+00:00 NeilBrown neilb@suse.de 2012-12-12T08:32:15+00:00 031da73fca29ebba3eea5a512746e01d52e542cd If you create a block2mtd device that is larger than main memory, and write to all of it, then lots of pages will be dirtied but they will never be flushed out as nothing calls any variant of balance_dirty_pages. It would be nice to call set_page_dirty_balance(), but that isn't exported, so just call balance_dirty_pages_ratelimited() directly. Signed-off-by: NeilBrown <neilb@suse.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> 
If you create a block2mtd device that is larger than main memory,
and write to all of it, then lots of pages will be dirtied but
they will never be flushed out as nothing calls any variant of
balance_dirty_pages.

It would be nice to call set_page_dirty_balance(), but that isn't exported,
so just call balance_dirty_pages_ratelimited() directly.

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
mtg: docg3: potential divide by zero in doc_write_oob() 2012-12-10T13:28:49+00:00 Dan Carpenter dan.carpenter@oracle.com 2012-11-29T14:16:51+00:00 6c810f90140a3274181c4093d5dd4c88c6fff0b4 If we set oobdelta to zero then we will either return -EINVAL or hit a divide (modulus) by zero on the next line when we check "(ooblen % oobdelta)". It's better to just return -EINVAL here instead. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Acked-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> 
If we set oobdelta to zero then we will either return -EINVAL or hit
a divide (modulus) by zero on the next line when we check
"(ooblen % oobdelta)".  It's better to just return -EINVAL here instead.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
mtd: m25p80: modify info for Micron N25Q128 2012-12-03T14:36:51+00:00 Liming Wang walimisdev@gmail.com 2012-11-22T06:58:09+00:00 98a9e2450667e497246449f96eab06eb3fb4d24b Micron N25Q128 has two types of flash: - One is for 1.8v supply voltage, prefixed with "n25q128a11" and the jedec code is 0x20bb18. - Another is for 3v supply voltage, prefixed with "n25q128a13" and the jedec code is 0x20ba18. So modify the original type info and add another type for Micron N25Q128. Signed-off-by: Liming Wang <walimisdev@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> 
Micron N25Q128 has two types of flash:

 - One is for 1.8v supply voltage, prefixed with "n25q128a11" and the jedec
   code is 0x20bb18.

 - Another is for 3v supply voltage, prefixed with "n25q128a13" and the jedec
   code is 0x20ba18.

So modify the original type info and add another type for Micron N25Q128.

Signed-off-by: Liming Wang <walimisdev@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
mtd: fix a number of checkpatch complaints 2012-11-22T10:16:28+00:00 Artem Bityutskiy artem.bityutskiy@linux.intel.com 2012-11-22T10:16:28+00:00 7bf350b7245b40fe6a57b79ec4a04c85195dc648 While checking the "__devinit" removal patches with checkpatch.pl, I noticed several warnings related to a space between the function name and '(', as well as long lines. I fixed the warnings up in this patch. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> 
While checking the "__devinit" removal patches with checkpatch.pl, I
noticed several warnings related to a space between the function name
and '(', as well as long lines. I fixed the warnings up in this patch.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
mtd: remove use of __devexit 2012-11-22T10:07:03+00:00 Bill Pemberton wfp5p@virginia.edu 2012-11-19T18:26:04+00:00 810b7e060c14110d8f580daaf77fab3a7d950483 CONFIG_HOTPLUG is going away as an option so __devexit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> 
CONFIG_HOTPLUG is going away as an option so __devexit is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
mtd: remove use of __devinitdata 2012-11-22T10:07:03+00:00 Bill Pemberton wfp5p@virginia.edu 2012-11-19T18:24:23+00:00 042a190944675bc54790bcf45b8b2c86e68f003b CONFIG_HOTPLUG is going away as an option so __devinitdata is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> 
CONFIG_HOTPLUG is going away as an option so __devinitdata is no
longer needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
mtd: remove use of __devinit 2012-11-22T10:07:03+00:00 Bill Pemberton wfp5p@virginia.edu 2012-11-19T18:23:07+00:00 06f25510692385ed4dadd23f7d3d064d1ab11c2d CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> 
CONFIG_HOTPLUG is going away as an option so __devinit is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
mtd: remove use of __devexit_p 2012-11-22T10:07:02+00:00 Bill Pemberton wfp5p@virginia.edu 2012-11-19T18:21:24+00:00 5153b88cac39b0a14662f0e15439b826bacfe213 CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> 
CONFIG_HOTPLUG is going away as an option so __devexit_p is no longer
needed.

Signed-off-by: Bill Pemberton <wfp5p@virginia.edu>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
mtd: m25p80: add support for the Winbond w25q80bl chip 2012-11-22T07:45:00+00:00 Stephen Warren swarren@nvidia.com 2012-11-12T19:58:28+00:00 9b7ef60ce15c5f668c0da30a39ed9b315d3d7ff0 Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> 
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
mtd: diskonchip: don't warn about ARM architecture 2012-11-16T08:57:38+00:00 Arnd Bergmann arnd@arndb.de 2012-11-06T21:55:26+00:00 ca796f85901880c1247e19053d70b640f996813e Enabling the diskonchip drivers on most architectures results in a pointless warning "#warning Unknown architecture for DiskOnChip. No default probe locations defined". The driver can in fact handle the default location already through the CONFIG_MTD_DOCPROBE_ADDRESS, which gets set on the platforms that need it, and we get a run-time error if this is not set correctly. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> 
Enabling the diskonchip drivers on most architectures results
in a pointless warning "#warning Unknown architecture for
DiskOnChip. No default probe locations defined". The driver
can in fact handle the default location already through the
CONFIG_MTD_DOCPROBE_ADDRESS, which gets set on the platforms
that need it, and we get a run-time error if this is not
set correctly.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>