Trond Myklebust [Sun, 31 Jul 2011 20:39:04 +0000 (16:39 -0400)]
NFS: Re-enable compilation of nfs with !CONFIG_NFS_V4 || !CONFIG_NFS_V4_1
Fix two recently introduced compile problems:
Fix a typo in fs/nfs/pnfs.h
Move the pnfs_blksize declaration outside the CONFIG_NFS_V4 section in
struct nfs_server.
Reported-by: Jens Axboe <jaxboe@fusionio.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 31 Jul 2011 16:26:50 +0000 (06:26 -1000)]
Merge branch 'nfs-for-3.1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
* 'nfs-for-3.1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (28 commits)
pnfsblock: write_pagelist handle zero invalid extents
pnfsblock: note written INVAL areas for layoutcommit
pnfsblock: bl_write_pagelist
pnfsblock: bl_read_pagelist
pnfsblock: cleanup_layoutcommit
pnfsblock: encode_layoutcommit
pnfsblock: merge rw extents
pnfsblock: add extent manipulation functions
pnfsblock: bl_find_get_extent
pnfsblock: xdr decode pnfs_block_layout4
pnfsblock: call and parse getdevicelist
pnfsblock: merge extents
pnfsblock: lseg alloc and free
pnfsblock: remove device operations
pnfsblock: add device operations
pnfsblock: basic extent code
pnfsblock: use pageio_ops api
pnfsblock: add blocklayout Kconfig option, Makefile, and stubs
pnfs: cleanup_layoutcommit
pnfs: ask for layout_blksize and save it in nfs_server
...
Linus Torvalds [Sun, 31 Jul 2011 16:25:37 +0000 (06:25 -1000)]
Merge branch 'for-linus' of git://git./linux/kernel/git/penberg/slab-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6:
slab: use NUMA_NO_NODE
slab: remove one NR_CPUS dependency
Linus Torvalds [Sun, 31 Jul 2011 16:25:09 +0000 (06:25 -1000)]
Merge branch 'urgent-for-linus' of git://git./linux/kernel/git/wfg/writeback
* 'urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/writeback:
don't busy retry the inode on failed grab_super_passive()
Linus Torvalds [Sun, 31 Jul 2011 16:24:50 +0000 (06:24 -1000)]
Merge git://git.infradead.org/battery-2.6
* git://git.infradead.org/battery-2.6:
gpio-charger: Fix checking return value of request_any_context_irq
power_supply: MAX17042: Support additional properties
max8903_charger: Allow platform data to be __initdata
power_supply: Add charger driver for MAX8998/LP3974
power_supply: Add charger driver for MAX8997/8966
max17042_battery: Remove obsolete cleanup for clientdata
twl4030_charger: Fix warnings
wm831x_power: Support multiple instances
wm831x_backup: Support multiple instances
apm_power: Fix style error in macros
s3c_adc_battery: Fix annotation for s3c_adc_battery_probe()
bq20z75: Enable detection after registering
bq20z75: Add support for external notification
Linus Torvalds [Sun, 31 Jul 2011 16:23:40 +0000 (06:23 -1000)]
Merge git://git./linux/kernel/git/brodo/cpupowerutils
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/cpupowerutils:
cpupower: Do detect IDA (opportunistic processor performance) via cpuid
cpupower: Show Intel turbo ratio support via ./cpupower frequency-info
cpupowerutils: increase MAX_LINE_LEN
cpupower: Rename package from cpupowerutils to cpupower
cpupowerutils: Rename: libcpufreq->libcpupower
cpupowerutils: use kernel version-derived version string
cpupowerutils: utils - ConfigStyle bugfixes
cpupowerutils: helpers - ConfigStyle bugfixes
cpupowerutils: idle_monitor - ConfigStyle bugfixes
cpupowerutils: lib - ConfigStyle bugfixes
cpupowerutils: bench - ConfigStyle bugfixes
cpupowerutils: do not update po files on each and every compile
cpupowerutils: remove ccdv, use kernel quiet/verbose mechanism
cpupowerutils: use COPYING, CREDITS from top-level directory
cpupowerutils - cpufrequtils extended with quite some features
Linus Torvalds [Sun, 31 Jul 2011 16:23:08 +0000 (06:23 -1000)]
Merge git://git./linux/kernel/git/brodo/pcmcia-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
smc91c92_cs.c: fix bogus compiler warning
orinoco_cs: be more careful when matching cards with ID 0x0156:0x0002
hostap_cs: support cards with "Version 01.02" as third product ID
pcmcia: add PCMCIA_DEVICE_MANF_CARD_PROD_ID3
pxa2xx pcmcia - stargate 2 use gpio array.
pcmcia: pxa2xx: remove empty socket_init / socket_resume functions.
drivers:pcmcia:soc_common: make socket_init and socket_suspend optional
Peng Tao [Sun, 31 Jul 2011 00:52:56 +0000 (20:52 -0400)]
pnfsblock: write_pagelist handle zero invalid extents
For invalid extents, find other pages in the same fsblock and write them out.
[pnfsblock: write_begin]
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:55 +0000 (20:52 -0400)]
pnfsblock: note written INVAL areas for layoutcommit
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:54 +0000 (20:52 -0400)]
pnfsblock: bl_write_pagelist
Note: When upper layer's read/write request cannot be fulfilled, the block
layout driver shouldn't silently mark the page as error. It should do
what can be done and leave the rest to the upper layer. To do so, we
should set rdata/wdata->res.count properly.
When upper layer re-send the read/write request to finish the rest
part of the request, pgbase is the position where we should start at.
[pnfsblock: bl_write_pagelist support functions]
[pnfsblock: bl_write_pagelist adjust for missing PG_USE_PNFS]
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
[pnfsblock: handle errors when read or write pagelist.]
Signed-off-by: Zhang Jingwang <yyalone@gmail.com>
[pnfs-block: use new write_pagelist api]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
[SQUASHME: pnfsblock: mds_offset is set in the generic layer]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
[pnfsblock: mark IO error with NFS_LAYOUT_{RW|RO}_FAILED]
Signed-off-by: Peng Tao <peng_tao@emc.com>
[pnfsblock: SQUASHME: adjust to API change]
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
[pnfsblock: fixup blksize alignment in bl_setup_layoutcommit]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
[pnfsblock: bl_write_pagelist adjust for missing PG_USE_PNFS]
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
[pnfsblock: handle errors when read or write pagelist.]
Signed-off-by: Zhang Jingwang <yyalone@gmail.com>
[pnfs-block: use new write_pagelist api]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:53 +0000 (20:52 -0400)]
pnfsblock: bl_read_pagelist
Note: When upper layer's read/write request cannot be fulfilled, the block
layout driver shouldn't silently mark the page as error. It should do
what can be done and leave the rest to the upper layer. To do so, we
should set rdata/wdata->res.count properly.
When upper layer re-send the read/write request to finish the rest
part of the request, pgbase is the position where we should start at.
[pnfsblock: mark IO error with NFS_LAYOUT_{RW|RO}_FAILED]
Signed-off-by: Peng Tao <peng_tao@emc.com>
[pnfsblock: read path error handling]
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
[pnfsblock: handle errors when read or write pagelist.]
Signed-off-by: Zhang Jingwang <yyalone@gmail.com>
[pnfs-block: use new read_pagelist api]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:52 +0000 (20:52 -0400)]
pnfsblock: cleanup_layoutcommit
In blocklayout driver. There are two things happening
while layoutcommit/cleanup.
1. the modified extents are encoded.
2. On cleanup the extents are put back on the layout rw
extents list, for reads.
In the new system where actual xdr encoding is done in
encode_layoutcommit() directly into xdr buffer, these are
the new commit stages:
1. On setup_layoutcommit, the range is adjusted as before
and a structure is allocated for communication with
bl_encode_layoutcommit && bl_cleanup_layoutcommit
(Generic layer provides a void-star to hang it on)
2. bl_encode_layoutcommit is called to do the actual
encoding directly into xdr. The commit-extent-list is not
freed and is stored on above structure.
FIXME: The code is not yet converted to the new XDR cleanup
3. On cleanup the commit-extent-list is put back by a call
to set_to_rw() as before, but with no need for XDR decoding
of the list as before. And the commit-extent-list is freed.
Finally allocated structure is freed.
[rm inode and pnfs_layout_hdr args from cleanup_layoutcommit()]
Signed-off-by: Jim Rees <rees@umich.edu>
[pnfsblock: introduce bl_committing list]
Signed-off-by: Peng Tao <peng_tao@emc.com>
[pnfsblock: SQUASHME: adjust to API change]
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
[blocklayout: encode_layoutcommit implementation]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
[pnfsblock: fix bug setting up layoutcommit.]
Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn>
[pnfsblock: cleanup_layoutcommit wants a status parameter]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:51 +0000 (20:52 -0400)]
pnfsblock: encode_layoutcommit
In blocklayout driver. There are two things happening
while layoutcommit/cleanup.
1. the modified extents are encoded.
2. On cleanup the extents are put back on the layout rw
extents list, for reads.
In the new system where actual xdr encoding is done in
encode_layoutcommit() directly into xdr buffer, these are
the new commit stages:
1. On setup_layoutcommit, the range is adjusted as before
and a structure is allocated for communication with
bl_encode_layoutcommit && bl_cleanup_layoutcommit
(Generic layer provides a void-star to hang it on)
2. bl_encode_layoutcommit is called to do the actual
encoding directly into xdr. The commit-extent-list is not
freed and is stored on above structure.
FIXME: The code is not yet converted to the new XDR cleanup
3. On cleanup the commit-extent-list is put back by a call
to set_to_rw() as before, but with no need for XDR decoding
of the list as before. And the commit-extent-list is freed.
Finally allocated structure is freed.
[rm inode and pnfs_layout_hdr args from cleanup_layoutcommit()]
[pnfsblock: get rid of deprecated xdr macros]
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
[blocklayout: encode_layoutcommit implementation]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
[pnfsblock: fix bug setting up layoutcommit.]
Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn>
[pnfsblock: prevent commit list corruption]
[pnfsblock: fix layoutcommit with an empty opaque]
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:50 +0000 (20:52 -0400)]
pnfsblock: merge rw extents
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:49 +0000 (20:52 -0400)]
pnfsblock: add extent manipulation functions
Adds working implementations of various support functions
to handle INVAL extents, needed by writes, such as
bl_mark_sectors_init and bl_is_sector_init.
[pnfsblock: fix 64-bit compiler warnings for extent manipulation]
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
[Implement release_inval_marks]
Signed-off-by: Zhang Jingwang <zhangjingwang@nrchpc.ac.cn>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:48 +0000 (20:52 -0400)]
pnfsblock: bl_find_get_extent
Implement bl_find_get_extent(), one of the core extent manipulation
routines.
[pnfsblock: Lookup list entry of layouts and tags in reverse order]
Signed-off-by: Zhang Jingwang <zhangjingwang@nrchpc.ac.cn>
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Jim Rees <rees@umich.edu>
pnfsblock: fix print format warnings for sector_t and size_t
gcc spews warnings about these on x86_64, e.g.:
fs/nfs/blocklayout/blocklayout.c:74: warning: format ‘%Lu’ expects type ‘long long unsigned int’, but argument 2 has type ‘sector_t’
fs/nfs/blocklayout/blocklayout.c:388: warning: format ‘%d’ expects type ‘int’, but argument 5 has type ‘size_t’
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:47 +0000 (20:52 -0400)]
pnfsblock: xdr decode pnfs_block_layout4
XDR decodes the block layout payload sent in LAYOUTGET result, storing
the result in an extent list.
[pnfsblock: get rid of deprecated xdr macros]
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
[pnfsblock: fix bug getting pnfs_layout_type in translate_devid().]
Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:46 +0000 (20:52 -0400)]
pnfsblock: call and parse getdevicelist
Call GETDEVICELIST during mount, then call and parse GETDEVICEINFO
for each device returned.
[pnfsblock: get rid of deprecated xdr macros]
Signed-off-by: Jim Rees <rees@umich.edu>
[pnfsblock: fix pnfs_deviceid references]
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
[pnfsblock: fix print format warnings for sector_t and size_t]
[pnfs-block: #include <linux/vmalloc.h>]
[pnfsblock: no PNFS_NFS_SERVER]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[pnfsblock: fix bug determining size of striped volume]
[pnfsblock: fix oops when using multiple devices]
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
[pnfsblock: get rid of vmap and deviceid->area structure]
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:45 +0000 (20:52 -0400)]
pnfsblock: merge extents
Replace a stub, so that extents underlying the layouts are properly
added, merged, or ignored as necessary.
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
[pnfsblock: delete the new node before put it]
Signed-off-by: Mingyang Guo <guomingyang@nrchpc.ac.cn>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:44 +0000 (20:52 -0400)]
pnfsblock: lseg alloc and free
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
[pnfsblock: fix bug getting pnfs_layout_type in translate_devid().]
Signed-off-by: Tao Guo <guotao@nrchpc.ac.cn>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Zhang Jingwang <Jingwang.Zhang@emc.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Jim Rees [Sun, 31 Jul 2011 00:52:43 +0000 (20:52 -0400)]
pnfsblock: remove device operations
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
[upcall bugfixes]
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Jim Rees [Sun, 31 Jul 2011 00:52:42 +0000 (20:52 -0400)]
pnfsblock: add device operations
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
[upcall bugfixes]
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:41 +0000 (20:52 -0400)]
pnfsblock: basic extent code
Adds structures and basic create/delete code for extents.
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Zhang Jingwang <Jingwang.Zhang@emc.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Benny Halevy [Sun, 31 Jul 2011 00:52:40 +0000 (20:52 -0400)]
pnfsblock: use pageio_ops api
[pnfsblock: use pnfs_generic_pg_init_read/write]
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:39 +0000 (20:52 -0400)]
pnfsblock: add blocklayout Kconfig option, Makefile, and stubs
Define a configuration variable to enable/disable compilation of the
block driver code.
Add the minimal structure for a pnfs block layout driver, and empty
list-heads that will hold the extent data
[pnfsblock: make NFS_V4_1 select PNFS_BLOCK]
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[pnfs-block: fix CONFIG_PNFS_BLOCK dependencies]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
[pnfsblock: SQUASHME: adjust to API change]
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
[pnfs: move pnfs_layout_type inline in nfs_inode]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
[blocklayout: encode_layoutcommit implementation]
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
[pnfsblock: layout alloc and free]
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
[pnfs: move pnfs_layout_type inline in nfs_inode]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
[pnfsblock: define module alias]
Signed-off-by: Peng Tao <peng_tao@emc.com>
[rm inode and pnfs_layout_hdr args from cleanup_layoutcommit()]
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Andy Adamson [Sun, 31 Jul 2011 00:52:38 +0000 (20:52 -0400)]
pnfs: cleanup_layoutcommit
This gives layout driver a chance to cleanup structures they put in at
encode_layoutcommit.
Signed-off-by: Andy Adamson <andros@netapp.com>
[fixup layout header pointer for layoutcommit]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
[rm inode and pnfs_layout_hdr args from cleanup_layoutcommit()]
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Fred Isaman [Sun, 31 Jul 2011 00:52:37 +0000 (20:52 -0400)]
pnfs: ask for layout_blksize and save it in nfs_server
Block layout needs it to determine IO size.
Signed-off-by: Fred Isaman <iisaman@citi.umich.edu>
Signed-off-by: Tao Guo <glorioustao@gmail.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Benny Halevy [Sun, 31 Jul 2011 00:52:36 +0000 (20:52 -0400)]
pnfs: add set-clear layoutdriver interface
To allow layout driver to issue getdevicelist at mount time, and clean up
at umount time.
[fixup non NFS_V4_1 set_pnfs_layoutdriver definition]
[pnfs: pass mntfh down the init_pnfs path]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Andy Adamson [Sun, 31 Jul 2011 00:52:35 +0000 (20:52 -0400)]
pnfs: GETDEVICELIST
The block driver uses GETDEVICELIST
Signed-off-by: Andy Adamson <andros@netapp.com>
[pass struct nfs_server * to getdevicelist]
[get machince creds for getdevicelist]
[fix getdevicelist decode sizing]
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
Signed-off-by: Benny Halevy <bhalevy@tonian.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Peng Tao [Sun, 31 Jul 2011 00:52:34 +0000 (20:52 -0400)]
pnfs: use lwb as layoutcommit length
Using NFS4_MAX_UINT64 will break current protocol.
[Needed in v3.0]
CC: Stable Tree <stable@kernel.org>
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Peng Tao [Sun, 31 Jul 2011 00:52:33 +0000 (20:52 -0400)]
pnfs: let layoutcommit handle a list of lseg
There can be multiple lseg per file, so layoutcommit should be
able to handle it.
[Needed in v3.0]
CC: Stable Tree <stable@kernel.org>
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Peng Tao [Sun, 31 Jul 2011 00:52:32 +0000 (20:52 -0400)]
pnfs: save layoutcommit cred at layout header init
No need to save it for every lseg.
No need to save it at every pnfs_set_layoutcommit.
[Needed in v3.0]
CC: Stable Tree <stable@kernel.org>
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Peng Tao [Sun, 31 Jul 2011 00:52:31 +0000 (20:52 -0400)]
pnfs: save layoutcommit lwb at layout header
No need to save it for every lseg.
[Needed in v3.0]
CC: Stable Tree <stable@kernel.org>
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Andrew Morton [Thu, 28 Jul 2011 20:59:49 +0000 (13:59 -0700)]
slab: use NUMA_NO_NODE
Use the nice enumerated constant.
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Wu Fengguang [Sat, 30 Jul 2011 04:14:35 +0000 (22:14 -0600)]
don't busy retry the inode on failed grab_super_passive()
This fixes a soft lockup on conditions
a) the flusher is working on a work by __bdi_start_writeback(), while
b) someone else calls writeback_inodes_sb*() or sync_inodes_sb(), which
grab sb->s_umount and enqueue a new work for the flusher to execute
The s_umount grabbed by (b) will fail the grab_super_passive() in (a).
Then if the inode is requeued, wb_writeback() will busy retry on it.
As a result, wb_writeback() loops for ever without releasing
wb->list_lock, which further blocks other tasks.
Fix the busy loop by redirtying the inode. This may undesirably delay
the writeback of the inode, however most likely it will be picked up
soon by the queued work by writeback_inodes_sb*(), sync_inodes_sb() or
even writeback_inodes_wb().
bug url: http://www.spinics.net/lists/linux-fsdevel/msg47292.html
Reported-by: Christoph Hellwig <hch@infradead.org>
Tested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
Linus Torvalds [Sat, 30 Jul 2011 20:51:11 +0000 (10:51 -1000)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/trivial
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
sungem: fix compile failure caused by trivial #include consolidation
Linus Torvalds [Sat, 30 Jul 2011 18:57:57 +0000 (08:57 -1000)]
Merge branch 'hwmon-for-linus' of git://git./linux/kernel/git/groeck/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging: (24 commits)
hwmon: (lm90) Refactor reading of config2 register
hwmon: (lm90) Make SA56004 detection more robust
hwmon: (lm90) Simplify handling of extended local temp register
hwmon: (pmbus) Add client driver for LM25066, LM5064, and LM5066
hwmon: (max34440) Add support for peak attributes
hwmon: (max8688) Add support for peak attributes
hwmon: (max16064) Add support for peak attributes
hwmon: (adm1275) Add support for peak attributes
hwmon: (pmbus) Add support for peak attributes
hwmon: Add new attributes to sysfs ABI
hwmon: (pmbus) Strengthen check for status register existence
hwmon: (pmbus) Add support for virtual pages
hwmon: (pmbus) Support reading and writing of word registers in device specific code
hwmon: (pmbus) Increase attribute name size
hwmon: (pmbus) Add ADP4000, NCP4200 and NCP4208 to list of supported devices
hwmon: (pmbus) Add support for VID output voltage mode
hwmon: (pmbus) Move PMBus drivers to drivers/hwmon/pmbus
hwmon: (coretemp) Add core/pkg threshold support to Coretemp
hwmon: (lm95241) Add support for LM95231
hwmon: LM95245 driver
...
Vasiliy Kulikov [Thu, 28 Jul 2011 23:56:40 +0000 (03:56 +0400)]
shm: optimize locking and ipc_namespace getting
shm_lock() does a lookup of shm segment in shm_ids(ns).ipcs_idr, which
is redundant as we already know shmid_kernel address. An actual lock is
also not required for reads until we really want to destroy the segment.
exit_shm() and shm_destroy_orphaned() may avoid the loop by checking
whether there is at least one segment in current ipc_namespace.
The check of nsproxy and ipc_ns against NULL is redundant as exit_shm()
is called from do_exit() before the call to exit_notify(), so the
dereferencing current->nsproxy->ipc_ns is guaranteed to be safe.
Reported-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Vasiliy Kulikov [Thu, 28 Jul 2011 23:55:31 +0000 (03:55 +0400)]
shm: handle separate PID namespaces case
shm_try_destroy_orphaned() and shm_try_destroy_current() didn't handle
the case of separate PID namespaces, but a single IPC namespace. If
there are tasks with the same PID values using the same shmem object,
the wrong destroy decision could be reached.
On shm segment creation store the pointer to the creator task in
shmid_kernel->shm_creator field and zero it on task exit. Then
use the ->shm_creator insread of shm_cprid in both functions. As
shmid_kernel object is already locked at this stage, no additional
locking is needed.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Acked-by: Serge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bryan Schumaker [Fri, 29 Jul 2011 15:49:06 +0000 (11:49 -0400)]
Additional readdir cookie loop information
Print out the name of the file that triggers the cookie loop message to
make it slightly easier to track down the cause.
Signed-off-by: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Linus Torvalds [Sat, 30 Jul 2011 18:36:02 +0000 (08:36 -1000)]
Merge git://git./linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (71 commits)
[SCSI] fcoe: cleanup cpu selection for incoming requests
[SCSI] fcoe: add fip retry to avoid missing critical keep alive
[SCSI] libfc: fix warn on in lport retry
[SCSI] libfc: Remove the reference to FCP packet from scsi_cmnd in case of error
[SCSI] libfc: cleanup sending SRR request
[SCSI] libfc: two minor changes in comments
[SCSI] libfc, fcoe: ignore rx frame with wrong xid info
[SCSI] libfc: release exchg cache
[SCSI] libfc: use FC_MAX_ERROR_CNT
[SCSI] fcoe: remove unused ptype field in fcoe_rcv_info
[SCSI] bnx2fc: Update copyright and bump version to 1.0.4
[SCSI] bnx2fc: Tx BDs cache in write tasks
[SCSI] bnx2fc: Do not arm CQ when there are no CQEs
[SCSI] bnx2fc: hold tgt lock when calling cmd_release
[SCSI] bnx2fc: Enable support for sequence level error recovery
[SCSI] bnx2fc: HSI changes for tape
[SCSI] bnx2fc: Handle REC_TOV error code from firmware
[SCSI] bnx2fc: REC/SRR link service request and response handling
[SCSI] bnx2fc: Support 'sequence cleanup' task
[SCSI] dh_rdac: Associate HBA and storage in rdac_controller to support partitions in storage
...
Trond Myklebust [Sat, 30 Jul 2011 16:45:35 +0000 (12:45 -0400)]
NFS: Fix spurious readdir cookie loop messages
If the directory contents change, then we have to accept that the
file->f_pos value may shrink if we do a 'search-by-cookie'. In that
case, we should turn off the loop detection and let the NFS client
try to recover.
The patch also fixes a second loop detection bug by ensuring
that after turning on the ctx->duped flag, we read at least one new
cookie into ctx->dir_cookie before attempting to match with
ctx->dup_cookie.
Reported-by: Petr Vandrovec <petr@vandrovec.name>
Cc: stable@kernel.org [2.6.39+]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Linus Torvalds [Sat, 30 Jul 2011 18:21:48 +0000 (08:21 -1000)]
Merge branch 'slub/lockless' of git://git./linux/kernel/git/penberg/slab-2.6
* 'slub/lockless' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: (21 commits)
slub: When allocating a new slab also prep the first object
slub: disable interrupts in cmpxchg_double_slab when falling back to pagelock
Avoid duplicate _count variables in page_struct
Revert "SLUB: Fix build breakage in linux/mm_types.h"
SLUB: Fix build breakage in linux/mm_types.h
slub: slabinfo update for cmpxchg handling
slub: Not necessary to check for empty slab on load_freelist
slub: fast release on full slab
slub: Add statistics for the case that the current slab does not match the node
slub: Get rid of the another_slab label
slub: Avoid disabling interrupts in free slowpath
slub: Disable interrupts in free_debug processing
slub: Invert locking and avoid slab lock
slub: Rework allocator fastpaths
slub: Pass kmem_cache struct to lock and freeze slab
slub: explicit list_lock taking
slub: Add cmpxchg_double_slab()
mm: Rearrange struct page
slub: Move page->frozen handling near where the page->freelist handling occurs
slub: Do not use frozen page flag but a bit in the page counters
...
Linus Torvalds [Sat, 30 Jul 2011 07:17:06 +0000 (00:17 -0700)]
Merge branch 'kconfig' of git://git./linux/kernel/git/mmarek/kbuild-2.6
* 'kconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6: (25 commits)
kconfig: Introduce IS_ENABLED(), IS_BUILTIN() and IS_MODULE()
xconfig: Abort close if configuration cannot be saved
kconfig: fix missing "0x" prefix from S_HEX symbol in autoconf.h
kconfig/nconf: remove useless conditionnal
kconfig/nconf: prevent segfault on empty menu
kconfig/nconf: use the generic menu_get_ext_help()
nconfig: Avoid Wunused-but-set warning
kconfig/conf: mark xfgets() private
kconfig: remove pending prototypes for kconfig_load()
kconfig/conf: add command line options' description
kconfig/conf: reduce the scope of `defconfig_file'
kconfig: use calloc() for expr allocation
kconfig: introduce specialized printer
kconfig: do not overwrite symbol direct dependency in assignment
kconfig/gconf: silent missing prototype warnings
kconfig/gconf: kill deadcode
kconfig: nuke LKC_DIRECT_LINK cruft
kconfig: nuke reference to SWIG
kconfig: add missing <stdlib.h> inclusion
kconfig: add missing <ctype.h> inclusion
...
Fix up conflicts in scripts/kconfig/Makefile
Linus Torvalds [Sat, 30 Jul 2011 07:08:53 +0000 (00:08 -0700)]
Merge branch 'v4l_for_linus' of git://git./linux/kernel/git/mchehab/linux-2.6
* 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (430 commits)
[media] ir-mce_kbd-decoder: include module.h for its facilities
[media] ov5642: include module.h for its facilities
[media] em28xx: Fix DVB-C maxsize for em2884
[media] tda18271c2dd: Fix saw filter configuration for DVB-C @6MHz
[media] v4l: mt9v032: Fix Bayer pattern
[media] V4L: mt9m111: rewrite set_pixfmt
[media] V4L: mt9m111: fix missing return value check mt9m111_reg_clear
[media] V4L: initial driver for ov5642 CMOS sensor
[media] V4L: sh_mobile_ceu_camera: fix Oops when USERPTR mapping fails
[media] V4L: soc-camera: remove soc-camera bus and devices on it
[media] V4L: soc-camera: un-export the soc-camera bus
[media] V4L: sh_mobile_csi2: switch away from using the soc-camera bus notifier
[media] V4L: add media bus configuration subdev operations
[media] V4L: soc-camera: group struct field initialisations together
[media] V4L: soc-camera: remove now unused soc-camera specific PM hooks
[media] V4L: pxa-camera: switch to using standard PM hooks
[media] NetUP Dual DVB-T/C CI RF: force card hardware revision by module param
[media] Don't OOPS if videobuf_dvb_get_frontend return NULL
[media] NetUP Dual DVB-T/C CI RF: load firmware according card revision
[media] omap3isp: Support configurable HS/VS polarities
...
Fix up conflicts:
- arch/arm/mach-omap2/board-rx51-peripherals.c:
cleanup regulator supply definitions in mach-omap2
vs
OMAP3: RX-51: define vdds_csib regulator supply
- drivers/staging/tm6000/tm6000-alsa.c (trivial)
Linus Torvalds [Sat, 30 Jul 2011 06:45:06 +0000 (23:45 -0700)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
xfs: Fix build breakage in xfs_iops.c when CONFIG_FS_POSIX_ACL is not set
Linus Torvalds [Sat, 30 Jul 2011 06:43:50 +0000 (23:43 -0700)]
Merge branch 'next' of git://git./linux/kernel/git/ecryptfs/ecryptfs-2.6
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/ecryptfs/ecryptfs-2.6:
ecryptfs: Make inode bdi consistent with superblock bdi
eCryptfs: Unlock keys needed by ecryptfsd
Linus Torvalds [Sat, 30 Jul 2011 06:43:32 +0000 (23:43 -0700)]
Merge branch 'stable/bug.fixes' of git://git./linux/kernel/git/konrad/xen
* 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen/balloon: Fix compile errors - missing header files.
xen/grant: Fix compile warning.
xen/pciback: remove duplicated #include
Greg Dietsche [Fri, 29 Jul 2011 15:46:16 +0000 (16:46 +0100)]
frv: remove unnecessary code
remove unnecessary code that matches this coccinelle pattern
if (...)
return ret;
return ret;
Signed-off-by: Greg Dietsche <Gregory.Dietsche@cuw.edu>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
James Bottomley [Fri, 29 Jul 2011 13:11:32 +0000 (17:11 +0400)]
ramoops: fix compile failure on parisc
Fixes this:
drivers/char/ramoops.c: In function 'ramoops_init':
drivers/char/ramoops.c:221: error: implicit declaration of function 'IS_ERR'
drivers/char/ramoops.c:222: error: implicit declaration of function 'PTR_ERR'
If it actually builds on other platforms, it's probably getting
linux/err.h via some other #include.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 30 Jul 2011 06:35:05 +0000 (23:35 -0700)]
Merge branch 'linux-next' of git://git./linux/kernel/git/jbarnes/pci-2.6
* 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
PCI: remove printks about disabled bridge windows
PCI: fold pci_calc_resource_flags() into decode_bar()
PCI: treat mem BAR type "11" (reserved) as 32-bit, not 64-bit, BAR
PCI: correct pcie_set_readrq write size
PCI: pciehp: change wait time for valid configuration access
x86/PCI: Preserve existing pci=bfsort whitelist for Dell systems
PCI: ARI is a PCIe v2 feature
x86/PCI: quirks: Use pci_dev->revision
PCI: Make the struct pci_dev * argument of pci_fixup_irqs const.
PCI hotplug: cpqphp: use pci_dev->vendor
PCI hotplug: cpqphp: use pci_dev->subsystem_{vendor|device}
x86/PCI: config space accessor functions should not ignore the segment argument
PCI: Assign values to 'pci_obff_signal_type' enumeration constants
x86/PCI: reduce severity of host bridge window conflict warnings
PCI: enumerate the PCI device only removed out PCI hieratchy of OS when re-scanning PCI
PCI: PCIe AER: add aer_recover_queue
x86/PCI: select direct access mode for mmconfig option
PCI hotplug: Rename is_ejectable which also exists in dock.c
Linus Torvalds [Sat, 30 Jul 2011 06:33:40 +0000 (23:33 -0700)]
Merge branch 'upstream/xen-tracing2' of git://git./linux/kernel/git/jeremy/xen
* 'upstream/xen-tracing2' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen:
xen/tracing: fix compile errors when tracing is disabled.
Linus Torvalds [Sat, 30 Jul 2011 06:32:53 +0000 (23:32 -0700)]
Merge branch 'at91/cleanup' of git://git./linux/kernel/git/arm/linux-arm-soc
* 'at91/cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc:
at91: add arch specific ioremap support
at91: factorize sram init
at91: move register clocks to soc generic init
at91: move clock subsystem init to soc generic init
at91: use structure to store the current soc
at91: remove AT91_DBGU offset from dbgu register macro
at91: factorize at91 interrupts init to soc
at91: introduce commom AT91_BASE_SYS
Linus Torvalds [Sat, 30 Jul 2011 06:32:02 +0000 (23:32 -0700)]
Merge branch 'next/dt' of git://git./linux/kernel/git/arm/linux-arm-soc
* 'next/dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc: (21 commits)
arm/dt: tegra devicetree support
arm/versatile: Add device tree support
dt/irq: add irq_domain_generate_simple() helper
irq: add irq_domain translation infrastructure
dmaengine: imx-sdma: add device tree probe support
dmaengine: imx-sdma: sdma_get_firmware does not need to copy fw_name
dmaengine: imx-sdma: use platform_device_id to identify sdma version
mmc: sdhci-esdhc-imx: add device tree probe support
mmc: sdhci-pltfm: dt device does not pass parent to sdhci_alloc_host
mmc: sdhci-esdhc-imx: get rid of the uses of cpu_is_mx()
mmc: sdhci-esdhc-imx: do not reference platform data after probe
mmc: sdhci-esdhc-imx: extend card_detect and write_protect support for mx5
net/fec: add device tree probe support
net: ibm_newemac: convert it to use of_get_phy_mode
dt/net: add helper function of_get_phy_mode
net/fec: gasket needs to be enabled for some i.mx
serial/imx: add device tree probe support
serial/imx: get rid of the uses of cpu_is_mx1()
arm/dt: Add dtb make rule
arm/dt: Add skeleton dtsi file
...
Linus Torvalds [Sat, 30 Jul 2011 06:31:22 +0000 (23:31 -0700)]
Merge branch 'fixes' of git://git./linux/kernel/git/arm/linux-arm-soc
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/linux-arm-soc:
ARM: zynq: remove incorrectly deleted file
ARM: tegra: only select MACH_HAS_SND_SOC_TEGRA_WM8903 if SND_SOC
Linus Torvalds [Sat, 30 Jul 2011 06:28:47 +0000 (23:28 -0700)]
Merge git://git./linux/kernel/git/wim/linux-watchdog
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-watchdog: (25 commits)
watchdog: WatchDog Timer Driver Core - Add minimum and max timeout
watchdog: WatchDog Timer Driver Core - Add ioctl call
watchdog: WatchDog Timer Driver Core - Add nowayout feature
watchdog: WatchDog Timer Driver Core - Add Magic Close feature
watchdog: WatchDog Timer Driver Core - Add WDIOC_SETTIMEOUT and WDIOC_GETTIMEOUT ioctl
watchdog: WatchDog Timer Driver Core - Add WDIOC_SETOPTIONS ioctl
watchdog: WatchDog Timer Driver Core - Add WDIOC_KEEPALIVE ioctl
watchdog: WatchDog Timer Driver Core - Add basic ioctl functionality
watchdog: WatchDog Timer Driver Core - Add basic framework
watchdog: hpwdt: add next gen HP servers
watchdog: it8712f_wdt.c: improve includes
watchdog: at91sam9/wdt: move register header to drivers
watchdog: Add Xilinx watchdog timer driver
watchdog: remove empty pm-functions
watchdog: sp805: Flush posted writes in enable/disable.
watchdog: sp805: Don't write 0 to the load value register.
watchdog: imx2_wdt: add device tree probe support
watchdog: s3c2410: Add support for device tree based probe
watchdog: mpcore_wdt: Add suspend/resume support.
watchdog: mtx1-wdt: use dev_{err,info} instead of printk()
...
Linus Torvalds [Sat, 30 Jul 2011 06:21:50 +0000 (23:21 -0700)]
ext2: remove duplicate 'ext2_get_acl()' define
When commit
4e34e719e457 ("fs: take the ACL checks to common code")
changed the xyz_check_acl() functions into the more natural
xyz_get_acl() interface, we grew two copies of the
#define ext2_get_acl NULL
define for the non-acl case.
Remove the extra one.
Reported-by: Marco Stornelli <marco.stornelli@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Michal Marek [Wed, 20 Jul 2011 15:38:57 +0000 (17:38 +0200)]
kconfig: Introduce IS_ENABLED(), IS_BUILTIN() and IS_MODULE()
Replace the config_is_*() macros with a variant that allows for grepping
for usage of CONFIG_* options in the code. Usage:
if (IS_ENABLED(CONFIG_NUMA))
or
#if IS_ENABLED(CONFIG_NUMA)
The IS_ENABLED() macro evaluates to 1 if the argument is set (to either 'y'
or 'm'), IS_BUILTIN() tests if the option is 'y' and IS_MODULE() test if
the option is 'm'. Only boolean and tristate options are supported.
Reviewed-by: Arnaud Lacombe <lacombar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Thomas Renninger [Thu, 21 Jul 2011 09:54:54 +0000 (11:54 +0200)]
cpupower: Do detect IDA (opportunistic processor performance) via cpuid
IA32-Intel Devel guide Volume 3A - 14.3.2.1
-------------------------------------------
...
Opportunistic processor performance operation can be disabled by setting bit 38 of
IA32_MISC_ENABLES. This mechanism is intended for BIOS only. If
IA32_MISC_ENABLES[38] is set, CPUID.06H:EAX[1] will return 0.
Better detect things via cpuid, this cleans up the code a bit
and the MSR parts were not working correctly anyway.
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: lenb@kernel.org
CC: linux@dominikbrodowski.net
CC: cpufreq@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Thomas Renninger [Thu, 21 Jul 2011 09:54:53 +0000 (11:54 +0200)]
cpupower: Show Intel turbo ratio support via ./cpupower frequency-info
This adds the last piece missing from turbostat (if called with -v).
It shows on Intel machines supporting Turbo Boost how many cores
have to be active/idle to enter which boost mode (frequency).
Whether the HW really enters these boost modes can be verified via
./cpupower monitor.
Signed-off-by: Thomas Renninger <trenn@suse.de>
CC: lenb@kernel.org
CC: linux@dominikbrodowski.net
CC: cpufreq@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Markus Trippelsdorf [Tue, 26 Jul 2011 09:15:20 +0000 (11:15 +0200)]
xfs: Fix build breakage in xfs_iops.c when CONFIG_FS_POSIX_ACL is not set
commit
4e34e719e45, that takes the ACL checks to common code,
accidentely broke the build when CONFIG_FS_POSIX_ACL is not set:
CC fs/xfs/linux-2.6/xfs_iops.o
fs/xfs/linux-2.6/xfs_iops.c:1025:14: error: ‘xfs_get_acl’ undeclared here (not in a function)
Fix this by declaring xfs_get_acl a static inline function.
Signed-off-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Signed-off-by: Alex Elder <aelder@sgi.com>
Roman Vasiyarov [Mon, 25 Apr 2011 17:34:23 +0000 (21:34 +0400)]
cpupowerutils: increase MAX_LINE_LEN
larger sysfs data (>255 bytes) was truncated and thus used improperly
[linux@dominikbrodowski.net: adapted to cpupowerutils]
Signed-off-by: Roman Vasiyarov <rvasiyarov@gmail.com>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Thomas Renninger [Thu, 21 Apr 2011 15:50:26 +0000 (17:50 +0200)]
cpupower: Rename package from cpupowerutils to cpupower
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Thomas Renninger [Thu, 21 Apr 2011 15:50:25 +0000 (17:50 +0200)]
cpupowerutils: Rename: libcpufreq->libcpupower
[linux@dominikbrodowski.net: fix .gitignore]
Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Dominik Brodowski [Wed, 20 Apr 2011 18:01:39 +0000 (20:01 +0200)]
cpupowerutils: use kernel version-derived version string
As cpupowerutils is intended to be included into the kernel sources,
use the kernel versioning instead of a custom version.
The script utils/version-gen.sh is largely based on the script already
found in tools/perf/util/PERF-VERSION-GEN .
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Dominik Brodowski [Tue, 19 Apr 2011 18:33:50 +0000 (20:33 +0200)]
cpupowerutils: utils - ConfigStyle bugfixes
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Dominik Brodowski [Tue, 19 Apr 2011 18:16:05 +0000 (20:16 +0200)]
cpupowerutils: helpers - ConfigStyle bugfixes
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Dominik Brodowski [Tue, 19 Apr 2011 17:58:59 +0000 (19:58 +0200)]
cpupowerutils: idle_monitor - ConfigStyle bugfixes
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Dominik Brodowski [Tue, 19 Apr 2011 17:42:33 +0000 (19:42 +0200)]
cpupowerutils: lib - ConfigStyle bugfixes
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Dominik Brodowski [Tue, 19 Apr 2011 17:20:12 +0000 (19:20 +0200)]
cpupowerutils: bench - ConfigStyle bugfixes
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Dominik Brodowski [Tue, 19 Apr 2011 16:52:44 +0000 (18:52 +0200)]
cpupowerutils: do not update po files on each and every compile
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Dominik Brodowski [Tue, 19 Apr 2011 07:03:52 +0000 (09:03 +0200)]
cpupowerutils: remove ccdv, use kernel quiet/verbose mechanism
Use the quiet/verbose mechanism found in kernel tools, without
relying on the special tool "ccdv"
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Dominik Brodowski [Tue, 12 Apr 2011 20:50:19 +0000 (22:50 +0200)]
cpupowerutils: use COPYING, CREDITS from top-level directory
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Dominik Brodowski [Wed, 30 Mar 2011 14:30:11 +0000 (16:30 +0200)]
cpupowerutils - cpufrequtils extended with quite some features
CPU power consumption vs performance tuning is no longer
limited to CPU frequency switching anymore: deep sleep states,
traditional dynamic frequency scaling and hidden turbo/boost
frequencies are tied close together and depend on each other.
The first two exist on different architectures like PPC, Itanium and
ARM, the latter (so far) only on X86. On X86 the APU (CPU+GPU) will
only run most efficiently if CPU and GPU has proper power management
in place.
Users and Developers want to have *one* tool to get an overview what
their system supports and to monitor and debug CPU power management
in detail. The tool should compile and work on as many architectures
as possible.
Once this tool stabilizes a bit, it is intended to replace the
Intel-specific tools in tools/power/x86
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Dominik Brodowski [Fri, 29 Jul 2011 16:27:34 +0000 (18:27 +0200)]
smc91c92_cs.c: fix bogus compiler warning
On a recent compile, I got this warning:
CC [M] drivers/net/pcmcia/smc91c92_cs.o
drivers/net/pcmcia/smc91c92_cs.c: In function ‘smc91c92_probe’:
drivers/net/pcmcia/smc91c92_cs.c:812:12: warning: ‘j’ may be used uninitialized in this function
However, "j" is only used in a branch which has the same condition as
a previous branch, where j is set, e.g.
int j;
if (CONDITION)
j = VALUE
...
if (CONDITION)
printk(j)
Still, avoid this warning, as it is easy to circumvent.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Pavel Roskin [Tue, 26 Jul 2011 22:52:48 +0000 (18:52 -0400)]
orinoco_cs: be more careful when matching cards with ID 0x0156:0x0002
Without CONFIG_HERMES_PRISM, only match cards that have "Version 01.01"
as the third product ID. Those have Agere firmware.
With CONFIG_HERMES_PRISM, match all 0x0156:0x0002 cards.
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Pavel Roskin [Tue, 26 Jul 2011 22:52:41 +0000 (18:52 -0400)]
hostap_cs: support cards with "Version 01.02" as third product ID
Cards with numeric ID 0x0156:0x0002 and third ID "Version 01.02" can be
assumed to have Intersil firmware. Cards with Agere firmware use
"Version 01.01".
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Pavel Roskin [Tue, 26 Jul 2011 22:52:35 +0000 (18:52 -0400)]
pcmcia: add PCMCIA_DEVICE_MANF_CARD_PROD_ID3
This is needed to match wireless cards with Intersil firmware that have
ID 0x0156:0x0002 and the third ID "Version 01.02". Such cards are
currently matched by orinoco_cs, which doesn't support WPA. They should
be matched by hostap_cs.
The first and the second product ID vary widely, so there are few users
with some particular IDs. Of those, very few can submit a patch for
hostap_cs or write a useful bugreport. It's still important to support
their hardware properly.
With PCMCIA_DEVICE_MANF_CARD_PROD_ID3, it should be possible to cover
the remaining Intersil based designs that kept the numeric ID and the
"version" of the reference design.
Signed-off-by: Pavel Roskin <proski@gnu.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Jonathan Cameron [Wed, 13 Jul 2011 14:54:58 +0000 (15:54 +0100)]
pxa2xx pcmcia - stargate 2 use gpio array.
Kill off the buff gpio as not used anywhere.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Jonathan Cameron [Wed, 13 Jul 2011 14:54:57 +0000 (15:54 +0100)]
pcmcia: pxa2xx: remove empty socket_init / socket_resume functions.
Now the are optional, let us get rid of the ones that don't have
any content.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Jonathan Cameron [Wed, 13 Jul 2011 14:54:56 +0000 (15:54 +0100)]
drivers:pcmcia:soc_common: make socket_init and socket_suspend optional
10 boards define these empty, probably indicating not everyone has a use for them.
Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
Stephen Rothwell [Fri, 29 Jul 2011 05:41:45 +0000 (15:41 +1000)]
[media] ir-mce_kbd-decoder: include module.h for its facilities
drivers/media/rc/ir-mce_kbd-decoder.c:446:16: error: expected declaration specifiers or '...' before string constant
drivers/media/rc/ir-mce_kbd-decoder.c:446:1: warning: data definition has no type or storage class
drivers/media/rc/ir-mce_kbd-decoder.c:446:1: warning: type defaults to 'int' in declaration of 'MODULE_LICENSE'
drivers/media/rc/ir-mce_kbd-decoder.c:446:16: warning: function declaration isn't a prototype
drivers/media/rc/ir-mce_kbd-decoder.c:447:15: error: expected declaration specifiers or '...' before string constant
drivers/media/rc/ir-mce_kbd-decoder.c:447:1: warning: data definition has no type or storage class
drivers/media/rc/ir-mce_kbd-decoder.c:447:1: warning: type defaults to 'int' in declaration of 'MODULE_AUTHOR'
drivers/media/rc/ir-mce_kbd-decoder.c:447:15: warning: function declaration isn't a prototype
drivers/media/rc/ir-mce_kbd-decoder.c:448:20: error: expected declaration specifiers or '...' before string constant
drivers/media/rc/ir-mce_kbd-decoder.c:448:1: warning: data definition has no type or storage class
drivers/media/rc/ir-mce_kbd-decoder.c:448:1: warning: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION'
drivers/media/rc/ir-mce_kbd-decoder.c:448:20: warning: function declaration isn't a prototype
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Stephen Rothwell [Fri, 29 Jul 2011 05:30:00 +0000 (15:30 +1000)]
[media] ov5642: include module.h for its facilities
drivers/media/video/ov5642.c:985:1: warning: data definition has no type or storage class
drivers/media/video/ov5642.c:985:1: warning: type defaults to 'int' in declaration of 'MODULE_DEVICE_TABLE'
drivers/media/video/ov5642.c:985:1: warning: parameter names (without types) in function declaration
drivers/media/video/ov5642.c: In function 'ov5642_mod_init':
drivers/media/video/ov5642.c:998:9: error: 'THIS_MODULE' undeclared (first use in this function)
drivers/media/video/ov5642.c:998:9: note: each undeclared identifier is reported only once for each function it appears in
drivers/media/video/ov5642.c: At top level:
drivers/media/video/ov5642.c:1009:20: error: expected declaration specifiers or '...' before string constant
drivers/media/video/ov5642.c:1009:1: warning: data definition has no type or storage class
drivers/media/video/ov5642.c:1009:1: warning: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION'
drivers/media/video/ov5642.c:1009:20: warning: function declaration isn't a prototype
drivers/media/video/ov5642.c:1010:15: error: expected declaration specifiers or '...' before string constant
drivers/media/video/ov5642.c:1010:1: warning: data definition has no type or storage class
drivers/media/video/ov5642.c:1010:1: warning: type defaults to 'int' in declaration of 'MODULE_AUTHOR'
drivers/media/video/ov5642.c:1010:15: warning: function declaration isn't a prototype
drivers/media/video/ov5642.c:1011:16: error: expected declaration specifiers or '...' before string constant
drivers/media/video/ov5642.c:1011:1: warning: data definition has no type or storage class
drivers/media/video/ov5642.c:1011:1: warning: type defaults to 'int' in declaration of 'MODULE_LICENSE'
drivers/media/video/ov5642.c:1011:16: warning: function declaration isn't a prototype
drivers/media/video/ov5642.c: In function 'ov5642_mod_init':
drivers/media/video/ov5642.c:999:1: warning: control reaches end of non-void function
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Jiri Kosina [Fri, 29 Jul 2011 15:31:16 +0000 (17:31 +0200)]
sungem: fix compile failure caused by trivial #include consolidation
Only Sparc and PPC actually have the asm/prom.h include and as such they
can't be moved outside of the ifdefs.
Reported-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Thieu Le [Tue, 26 Jul 2011 23:15:10 +0000 (16:15 -0700)]
ecryptfs: Make inode bdi consistent with superblock bdi
Make the inode mapping bdi consistent with the superblock bdi so that
dirty pages are flushed properly.
Signed-off-by: Thieu Le <thieule@chromium.org>
Cc: <stable@kernel.org> [2.6.39+]
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Tyler Hicks [Wed, 27 Jul 2011 00:47:08 +0000 (19:47 -0500)]
eCryptfs: Unlock keys needed by ecryptfsd
Fixes a regression caused by
b5695d04634fa4ccca7dcbc05bb4a66522f02e0b
Kernel keyring keys containing eCryptfs authentication tokens should not
be write locked when calling out to ecryptfsd to wrap and unwrap file
encryption keys. The eCryptfs kernel code can not hold the key's write
lock because ecryptfsd needs to request the key after receiving such a
request from the kernel.
Without this fix, all file opens and creates will timeout and fail when
using the eCryptfs PKI infrastructure. This is not an issue when using
passphrase-based mount keys, which is the most widely deployed eCryptfs
configuration.
Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
Acked-by: Roberto Sassu <roberto.sassu@polito.it>
Tested-by: Roberto Sassu <roberto.sassu@polito.it>
Tested-by: Alexis Hafner1 <haf@zurich.ibm.com>
Cc: <stable@kernel.org> [2.6.39+]
Jean Delvare [Sun, 24 Jul 2011 18:37:05 +0000 (20:37 +0200)]
hwmon: (lm90) Refactor reading of config2 register
Several vendors implement a second configuration register, which we
check during device detection. Refactor the code to avoid duplication.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Stijn Devriendt <sdevrien@cisco.com>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Jean Delvare [Sun, 24 Jul 2011 18:36:15 +0000 (20:36 +0200)]
hwmon: (lm90) Make SA56004 detection more robust
With a device ID register value of 0, the SA56004 detection is rather
weak. Check several other register too to confirm the detection, as we
do for other supported devices.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Stijn Devriendt <sdevrien@cisco.com>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Stijn Devriendt <sdevrien@cisco.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Jean Delvare [Thu, 28 Jul 2011 06:22:25 +0000 (23:22 -0700)]
hwmon: (lm90) Simplify handling of extended local temp register
The optional extended local temperature register can never have
address 0, as this address is already used by another register. Thus
we can get rid of flag LM90_HAVE_LOCAL_EXT and simply rely on
reg_local_ext being non-zero to determine if a given chip has this
extension or not. This makes the code more simple.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Stijn Devriendt <sdevrien@cisco.com>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Guenter Roeck [Fri, 8 Jul 2011 17:43:57 +0000 (10:43 -0700)]
hwmon: (pmbus) Add client driver for LM25066, LM5064, and LM5066
PMBus client driver supporting National Semiconductor LM25066, LM5064, and LM5066.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
Guenter Roeck [Sat, 9 Jul 2011 20:17:43 +0000 (13:17 -0700)]
hwmon: (max34440) Add support for peak attributes
Add support for voltage, current, and temperature peak (historic maximum)
attributes.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
Guenter Roeck [Sat, 9 Jul 2011 20:11:44 +0000 (13:11 -0700)]
hwmon: (max8688) Add support for peak attributes
Add support for voltage, current, and temperature peak (historic maximum)
attributes.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Guenter Roeck [Sat, 9 Jul 2011 20:10:19 +0000 (13:10 -0700)]
hwmon: (max16064) Add support for peak attributes
Add support for voltage and temperature peak (historic maximum) attributes.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
Guenter Roeck [Sat, 9 Jul 2011 18:17:33 +0000 (11:17 -0700)]
hwmon: (adm1275) Add support for peak attributes
Add support for voltage and current peak (historic maximum) attributes.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
Guenter Roeck [Sat, 9 Jul 2011 15:30:26 +0000 (08:30 -0700)]
hwmon: (pmbus) Add support for peak attributes
Most PMBus devices provide manufacturer specific commands to read low and/or
high peak values for some or all of its sensors.
To support providing those values as lowest/highest attributes to the user,
introduce virtual PMBus commands. Those commands reside outside the normal
command set and have to be implemented in device specific code, which map the
virtual commands to device specific commands.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
Guenter Roeck [Sat, 9 Jul 2011 17:32:11 +0000 (10:32 -0700)]
hwmon: Add new attributes to sysfs ABI
Add the following attributes to the sysfs ABI.
in[0-*]_average
in[0-*]_lowest
in[0-*]_highest
in[0-*]_reset_history
in_reset_history
curr[1-*]_average
curr[1-*]_lowest
curr[1-*]_highest
curr[1-*]_reset_history
curr_reset_history
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
Guenter Roeck [Sat, 9 Jul 2011 19:06:45 +0000 (12:06 -0700)]
hwmon: (pmbus) Strengthen check for status register existence
With virtual register page support, it is now possible that the status register
on virtual pages does not exist or is itself virtual. To take this into account
when creating alarm attributes, generate those attributes only if the status
register on the respective page is known to exist.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
Guenter Roeck [Sat, 9 Jul 2011 14:41:01 +0000 (07:41 -0700)]
hwmon: (pmbus) Add support for virtual pages
Some PMBus chips have non-standard sensor registers. An easy way to
support such sensors is to introduce virtual pages and map the non-standard
registers into standard registers on an extra page.
For this to work, the code verifying if the configured number of pages exists
has to be removed. Since a wrong number of pages can only be configured in a
front-end driver, this should not have a practical impact since the resulting
errors should be found during development and testing.
Also, functions to read the chip status while checking if a command register
exists must be modified to no longer set the page register before reading the
status, since the physical page associated with the checked register may not
exist. This does not make a functional difference since the page was already set
when the attempt to read the register was made.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
Guenter Roeck [Fri, 8 Jul 2011 17:41:24 +0000 (10:41 -0700)]
hwmon: (pmbus) Support reading and writing of word registers in device specific code
Some PMBus devices use non-standard registers for some of the sensors and/or
limits. To support such devices, add code to support reading and writing of word
size registers in device specific code.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>
Guenter Roeck [Sat, 9 Jul 2011 15:58:49 +0000 (08:58 -0700)]
hwmon: (pmbus) Increase attribute name size
Some hwmon sysfs attributes have a length of 20 bytes (plus terminating 0).
I2C_NAME_SIZE is defined as 20 and thus can not be used to define the length
of hwmon sysfs attributes. Replace it with PMBUS_NAME_SIZE, set to 24.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Reviewed-by: Robert Coulson <robert.coulson@ericsson.com>