Jiro SEKIBA [Fri, 27 Nov 2009 10:41:14 +0000 (19:41 +0900)]
nilfs2: replace mark_inode_dirty as nilfs_mark_inode_dirty
Replace mark_inode_dirty() as nilfs_mark_inode_dirty()
to reduce deep function calls.
Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Jiro SEKIBA [Fri, 27 Nov 2009 10:41:13 +0000 (19:41 +0900)]
nilfs2: delete mark_inode_dirty in nilfs_delete_entry
Delete mark_inode_dirty() in nilfs_delete_entry() to reduce duplicate
mark_inode_dirty() calls both in nilfs_rename() and nilfs_delete_entry().
Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Jiro SEKIBA [Fri, 27 Nov 2009 10:41:12 +0000 (19:41 +0900)]
nilfs2: delete mark_inode_dirty in nilfs_commit_chunk
Delete mark_inode_dirty() in nilfs_commit_chunk(), for callers of
nilfs_commit_chunk() will call equivalent mark_inode_dirty()
after calling nilfs_commit_chunk().
Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Jiro SEKIBA [Fri, 27 Nov 2009 10:41:11 +0000 (19:41 +0900)]
nilfs2: change return type of nilfs_commit_chunk
change return type of nilfs_commit_chunk() as void from int,
for nilfs_set_file_dirty() usually does not return error.
This is an intermediate patch to reduce mark_inode_dirty() in
nilfs_commit_chunk().
Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Jiro SEKIBA [Fri, 27 Nov 2009 10:41:10 +0000 (19:41 +0900)]
nilfs2: split nilfs_unlink as nilfs_do_unlink and nilfs_unlink
Split nilfs_unlink() to reduce nested transaction and duplicate
mark_inode_dirty() calls when calling nilfs_unlink() from nilfs_rmdir().
nilfs_do_unlink() is an actual unlink functionality which is not
in transaction and does not call mark_inode_dirty() for dentry argument.
nilfs_unlink() is a wrapper function for do_nilfs_unlink() with
transaction and mark_inode_dirty() for dentry argument.
Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Jiro SEKIBA [Fri, 27 Nov 2009 10:41:09 +0000 (19:41 +0900)]
nilfs2: delete redundant mark_inode_dirty
delete redundant mark_inode_dirty() calls
Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Jiro SEKIBA [Fri, 27 Nov 2009 10:41:08 +0000 (19:41 +0900)]
nilfs2: expand inode_inc_link_count and inode_dec_link_count
This is an intermidiate patch to reduce redandunt mark_inode_dirty() calls
by calling inode_inc_link_count() and inode_dec_link_count() functions.
Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Jiro SEKIBA [Fri, 27 Nov 2009 10:41:07 +0000 (19:41 +0900)]
nilfs2: delete mark_inode_dirty from nilfs_set_link
Delete mark_inode_dirty() from nilfs_set_link() to reduce redundant
mark_inode_dirty() calls in caller of nilfs_set_link().
Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Jiro SEKIBA [Fri, 27 Nov 2009 10:41:06 +0000 (19:41 +0900)]
nilfs2: delete mark_inode_dirty in nilfs_new_inode
It is redundant to call mark_inode_dirty() in nilfs_new_inode() because
all caller of nilfs_new_inode() will call mark_inode_dirty()
after calling nilfs_new_inode() directly or indirectly in transaction.
Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Thu, 19 Nov 2009 18:28:01 +0000 (03:28 +0900)]
nilfs2: add norecovery mount option
This adds "norecovery" mount option which disables temporal write
access to read-only mounts or snapshots during mount/recovery.
Without this option, write access will be even performed for those
types of mounts; the temporal write access is needed to mount root
file system read-only after an unclean shutdown.
This option will be helpful when user wants to prevent any write
access to the device.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Eric Sandeen <sandeen@redhat.com>
Ryusuke Konishi [Thu, 19 Nov 2009 10:58:46 +0000 (19:58 +0900)]
nilfs2: add helper to get if volume is in a valid state
This adds a helper function, nilfs_valid_fs() which returns if nilfs
is in a valid state or not.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Thu, 19 Nov 2009 07:58:40 +0000 (16:58 +0900)]
nilfs2: move recovery completion into load_nilfs function
Although mount recovery of nilfs is integrated in load_nilfs()
procedure, the completion of recovery was isolated from the procedure
and performed at the end of the fill_super routine.
This was somewhat confusing since the recovery is needed for the nilfs
object, not for a super block instance.
To resolve the inconsistency, this will integrate the recovery
completion into load_nilfs().
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Thu, 19 Nov 2009 13:24:48 +0000 (22:24 +0900)]
nilfs2: apply readahead for recovery on mount
This inserts readahead in the recovery code. The readahead request is
issued per segment while searching the latest super root block.
This will shorten mount time after unclean unmount. A measurement
shows the recovery time was reduced by more than 60 percent:
e.g. real 0m11.586s -> 0m3.918s (x 2.96)
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Wed, 18 Nov 2009 09:37:28 +0000 (18:37 +0900)]
nilfs2: clean up get/put function of a segment usage
This eliminates obsolete nilfs_get_sufile_get_segment_usage() and
nilfs_set_sufile_segment_usage() from sufile.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Wed, 18 Nov 2009 09:23:34 +0000 (18:23 +0900)]
nilfs2: move routine to set segment usage into sufile
This adds nilfs_sufile_set_segment_usage() function in sufile to
replace direct access to the sufile metadata in log writer code.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Wed, 18 Nov 2009 08:25:12 +0000 (17:25 +0900)]
nilfs2: move routine marking segment usage dirty into sufile
This adds nilfs_sufile_mark_dirty() function in sufile to replace
nilfs_touch_segusage() function in log writer code. This is a
preparation for the further cleanup which will move out low level
sufile operations in the log writer.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Sat, 14 Nov 2009 09:40:27 +0000 (18:40 +0900)]
nilfs2: insert cache operation in palloc get block routines
This implements cache operation in get block routines of palloc code:
nilfs_palloc_get_desc_block(), nilfs_palloc_get_bitmap_block(), and
nilfs_palloc_get_entry_block().
This will complete the palloc cache.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Sat, 14 Nov 2009 07:44:22 +0000 (16:44 +0900)]
nilfs2: add palloc cache to ifile
This adds the palloc cache to ifile. The palloc cache is allocated on
the extended region of nilfs_mdt_info struct. The struct
nilfs_ifile_info defines the extended on memory structure of ifile.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Sun, 15 Nov 2009 11:13:21 +0000 (20:13 +0900)]
nilfs2: flush palloc cache before manipulating data pages of GC dat
Data pages in gcdat metadata file (i.e. the secondary DAT for GC), are
cleared or even moved back to the normal DAT when a shot of garbage
collection was done.
Buffer heads held by the palloc cache of gcdat must be cleared before
these page cache manipulation. This adds nilfs_palloc_clear_cache()
to ensure this.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Sat, 14 Nov 2009 07:35:01 +0000 (16:35 +0900)]
nilfs2: add palloc cache to dat
This adds the palloc cache to DAT file. The palloc cache is allocated
on the extended region of nilfs_mdt_info struct. The struct
nilfs_dat_info defines the extended on memory structure of DAT.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Sat, 14 Nov 2009 06:54:27 +0000 (15:54 +0900)]
nilfs2: add cache framework for persistent object allocator
This adds setup and cleanup routines of the persistent object
allocator cache.
According to ftrace analyses, accessing buffers of the DAT file
suffers indispensable overhead many times. To mitigate the overhead,
This introduce cache framework for the persistent object allocator
(palloc) which the DAT file and ifile are using.
struct nilfs_palloc_cache represents the cache object per metadata
file using palloc.
The cache is initialized through nilfs_palloc_setup_cache() and
destroyed by nilfs_palloc_destroy_cache(); callers of the former
function will be added to individual allocators of DAT and ifile on
successive patches.
nilfs_palloc_destroy_cache() will be called from nilfs_mdt_destroy()
if the cache is attached to a metadata file. A companion function
nilfs_palloc_clear_cache() is provided to allow releasing buffer head
references independently with the cleanup task. This adjunctive
function will be used before invalidating pages of metadata file with
the cache.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Sat, 14 Nov 2009 04:48:06 +0000 (13:48 +0900)]
nilfs2: unfold nilfs_palloc_block_get_bitmap function
This expands a trivial address calculation in the function into its
every callsite. This expansion improves readability of the callers.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Fri, 13 Nov 2009 07:49:09 +0000 (16:49 +0900)]
nilfs2: eliminate nilfs_btnode_get function
This removes the obsolete nilfs_btnode_get() function and makes
nilfs_btree_get_block() directly call nilfs_btnode_submit_block().
This expansion will provide better opportunity for code optimization.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Fri, 13 Nov 2009 07:30:41 +0000 (16:30 +0900)]
nilfs2: remove newblk argument from nilfs_btnode_submit_block
This removes the obsolete argument from nilfs_btnode_submit_block().
This will complete separating a create function of btree node.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Fri, 13 Nov 2009 07:25:19 +0000 (16:25 +0900)]
nilfs2: use nilfs_btnode_create_block function
This displaces nilfs_btnode_get() use to create new btree node block
with nilfs_btnode_create_block.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Fri, 13 Nov 2009 07:04:11 +0000 (16:04 +0900)]
nilfs2: separate function for creating new btree node block
Adds a separate routine for creating a btree node block. This is a
preparation to reduce the depth of function calls during submitting
btree node buffer.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Fri, 13 Nov 2009 15:09:47 +0000 (00:09 +0900)]
nilfs2: avoid readahead on metadata file for create mode
This turns off readhead action of metadata file if nilfs_mdt_get_block
function was called with a create flag.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Thu, 12 Nov 2009 23:45:32 +0000 (08:45 +0900)]
nilfs2: simplify nilfs_sufile_get_ncleansegs function
Previously, this function took an status code to return possible error
codes. The ("nilfs2: add local variable to cache the number of clean
segments") patch removed the possibility to return errors.
So, this simplifies the function definition to make it directly return
the number of clean segments.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Thu, 12 Nov 2009 18:41:55 +0000 (03:41 +0900)]
nilfs2: add local variable to cache the number of clean segments
This makes it possible for sufile to get the number of clean segments
faster.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Thu, 12 Nov 2009 18:10:21 +0000 (03:10 +0900)]
nilfs2: unfold nilfs_sufile_block_get_header function
This unfolds the nilfs_sufile_block_get_header() function for
simplicity.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Thu, 12 Nov 2009 17:25:41 +0000 (02:25 +0900)]
nilfs2: hide nilfs_mdt_clear calls in nilfs_mdt_destroy
This will hide a function call of nilfs_mdt_clear() in
nilfs_mdt_destroy().
This ensures nilfs_mdt_destroy() to do cleanup jobs included in
nilfs_mdt_clear().
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Thu, 12 Nov 2009 16:55:02 +0000 (01:55 +0900)]
nilfs2: eliminate inlines to directly read/write inode of metadata files
Removes two inline functions: nilfs_mdt_read_inode_direct() and
nilfs_mdt_write_inode_direct().
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Thu, 12 Nov 2009 16:36:56 +0000 (01:36 +0900)]
nilfs2: separate read method of meta data files on super root block
Will displace nilfs_mdt_read_inode_direct function with an individual
read method: nilfs_dat_read, nilfs_sufile_read, nilfs_cpfile_read.
This provides the opportunity to initialize local variables of each
metadata file after reading the inode.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Thu, 12 Nov 2009 14:56:43 +0000 (23:56 +0900)]
nilfs2: separate constructor of metadata files
This will displace nilfs_mdt_new() constructor with individual
metadata file constructors like nilfs_dat_new(), new_sufile_new(),
nilfs_cpfile_new(), and nilfs_ifile_new().
This makes it possible for each metadata file to have own
intialization code.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Thu, 12 Nov 2009 13:42:04 +0000 (22:42 +0900)]
nilfs2: add size option of private object to metadata file allocator
This adds an optional "object size" argument to nilfs_mdt_new_common()
function; the argument specifies the size of private object attached
to a newly allocated metadata file inode.
This will afford space to keep local variables for meta data files.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Thu, 5 Nov 2009 16:00:48 +0000 (01:00 +0900)]
nilfs2: move out mark_inode_dirty calls from bmap routines
Previously, nilfs_bmap_add_blocks() and nilfs_bmap_sub_blocks() called
mark_inode_dirty() after they changed the number of data blocks.
This moves these calls outside bmap outermost functions like
nilfs_bmap_insert() or nilfs_bmap_truncate().
This will mitigate overhead for truncate or delete operation since
they repeatedly remove set of blocks. Nearly 10 percent improvement
was observed for removal of a large file:
# dd if=/dev/zero of=/test/aaa bs=1M count=512
# time rm /test/aaa
real 2.968s -> 2.705s
Further optimization may be possible by eliminating these
mark_inode_dirty() uses though I avoid mixing separate changes here.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Thu, 5 Nov 2009 06:53:27 +0000 (15:53 +0900)]
nilfs2: stop marking metadata inode dirty within btree operations
Since metadata file routines mark the inode dirty after they
successfully changed bmap objects, nilfs_mdt_mark_dirty() calls in
nilfs_bmap_add_blocks() and nilfs_bmap_sub_blocks() are redundant.
This removes these overlapping calls from the bmap routines.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Wed, 11 Nov 2009 13:37:59 +0000 (22:37 +0900)]
nilfs2: remove buffer locking from btree code
lock_buffer() and unlock_buffer() uses in btree.c are eliminable
because btree functions gain buffer heads through nilfs_btnode_get(),
which never returns an on-the-fly buffer.
Although nilfs_clear_dirty_page() and nilfs_copy_back_pages() in
nilfs_commit_gcdat_inode() juggle btree node buffers of DAT, this is
safe because these operations are protected by a log writer lock or
the metadata file semaphore of DAT.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Tue, 10 Nov 2009 16:28:48 +0000 (01:28 +0900)]
nilfs2: remove buffer locking in nilfs_mark_inode_dirty
This lock is eliminable because inodes on the buffer can be updated
independently. Although a log writer also fills in bmap data on the
on-disk inodes, this update is exclusively done by a log writer lock.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Jiro SEKIBA [Thu, 12 Nov 2009 05:07:27 +0000 (14:07 +0900)]
nilfs2: cleanup unused match_bool function
match_bool function is not used anymore.
Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Jiro SEKIBA [Thu, 12 Nov 2009 05:07:26 +0000 (14:07 +0900)]
nilfs2: Using nobarrier option instead of barrier=off
Since most of fs using nofoobar style option,
modified barrier=off option as nobarrier.
Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Jiro SEKIBA [Mon, 9 Nov 2009 10:10:11 +0000 (19:10 +0900)]
nilfs2: move definition of struct nilfs_btree_node
This is a trivial patch to expose struct nilfs_fs_btree_node.
The struct should be exposed outside of kernel, for it is disk format.
Signed-off-by: Jiro SEKIBA <jir@unicus.jp>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Ryusuke Konishi [Sat, 10 Oct 2009 13:58:10 +0000 (22:58 +0900)]
nilfs2: get rid of BUG_ON use in btree lookup routines
The current btree lookup routines make a kernel oops when detected
inconsistency in btree blocks. These routines should instead return a
proper error code because the inconsistency usually comes from
corruption of on-disk metadata.
This fixes the issue by converting BUG_ON calls to proper error
handlings.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Linus Torvalds [Thu, 19 Nov 2009 22:32:38 +0000 (14:32 -0800)]
Linux 2.6.32-rc8
Linus Torvalds [Thu, 19 Nov 2009 21:43:19 +0000 (13:43 -0800)]
Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6:
SUNRPC: Address buffer overrun in rpc_uaddr2sockaddr()
NFSv4: Fix a cache validation bug which causes getcwd() to return ENOENT
Alan Cox [Thu, 19 Nov 2009 13:30:36 +0000 (13:30 +0000)]
vt: Fix use of "new" in a struct field
As this struct is exposed to user space and the API was added for this
release it's a bit of a pain for the C++ world and we still have time to
fix it. Rename the fields before we end up with that pain in an actual
release.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Reported-by: Olivier Goffart
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
David Woodhouse [Thu, 19 Nov 2009 02:18:44 +0000 (02:18 +0000)]
Fix handling of the HP/Acer 'DMAR at zero' BIOS error for machines with <4GiB RAM.
Commit
86cf898e1d0fca245173980e3897580db38569a8 ("intel-iommu: Check for
'DMAR at zero' BIOS error earlier.") was supposed to work by pretending
not to detect an IOMMU if it was actually being reported by the BIOS at
physical address zero.
However, the intel_iommu_init() function is called unconditionally, as
are the corresponding functions for other IOMMU hardware.
So the patch only worked if you have RAM above the 4GiB boundary. It
caused swiotlb to be initialised when no IOMMU was detected during early
boot, and thus the later IOMMU init would refuse to run.
But if you have less RAM than that, swiotlb wouldn't get set up and the
IOMMU _would_ still end up being initialised, even though we never
claimed to detect it.
This patch also sets the dmar_disabled flag when the error is detected
during the initial detection phase -- so that the later call to
intel_iommu_init() will return without doing anything, regardless of
whether swiotlb is used or not.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 19 Nov 2009 02:49:49 +0000 (18:49 -0800)]
Merge branch 'fixes' of git://git./linux/kernel/git/davej/cpufreq
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq:
[CPUFREQ] Fix stale cpufreq_cpu_governor pointer
[CPUFREQ] Resolve time unit thinko in ondemand/conservative govs
[CPUFREQ] speedstep-ich: fix error caused by
394122ab144dae4b276d74644a2f11c44a60ac5c
[CPUFREQ] Fix use after free on governor restore
[CPUFREQ] acpi-cpufreq: blacklist Intel 0f68: Fix HT detection and put in notification message
[CPUFREQ] powernow-k8: Fix test in get_transition_latency()
[CPUFREQ] longhaul: select Longhaul version 2 for capable CPUs
Linus Torvalds [Wed, 18 Nov 2009 21:31:52 +0000 (22:31 +0100)]
strcmp: fix overflow and possibly signedness error
Doing the strcmp return value as
signed char __res = *cs - *ct;
is wrong for two reasons. The subtraction can overflow because __res
doesn't use a type big enough. Moreover the compared bytes should be
interpreted as unsigned char as specified by POSIX.
The same problem is fixed in strncmp.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Michael Buesch <mb@bu3sch.de>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Thu, 19 Nov 2009 01:08:16 +0000 (17:08 -0800)]
Merge branch 'agp-fixes' of git://git./linux/kernel/git/airlied/agp-2.6
* 'agp-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6:
agp/intel-agp: Set dma_mask for capable chipsets before agp_add_bridge()
Linus Torvalds [Thu, 19 Nov 2009 00:58:34 +0000 (16:58 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jmorris/security-testing-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6:
ima: replace GFP_KERNEL with GFP_NOFS
David Woodhouse [Wed, 18 Nov 2009 10:22:46 +0000 (10:22 +0000)]
agp/intel-agp: Set dma_mask for capable chipsets before agp_add_bridge()
We should set this before calling agp_add_bridge() so that it's done
before we map the scratch page too.
This should probably fix the regression reported as k.o. bug #14627.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Linus Torvalds [Wed, 18 Nov 2009 23:00:21 +0000 (15:00 -0800)]
Merge branch 'omap-fixes-for-linus' of git://git./linux/kernel/git/tmlind/linux-omap-2.6
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
OMAP: cs should be positive in gpmc_cs_free()
omap: fix unlikely(x) < y
omap3: clock: Fixed dpll3_m2x2 rate calculation
omap3: clock: Fix the DPLL freqsel computations
omap: Fix keymap for zoom2 according to matrix keypad framwork
Linus Torvalds [Wed, 18 Nov 2009 22:59:49 +0000 (14:59 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ASoC: tlv320aic23 fix rate selection
ASoC: OMAP3 Pandora: update for TWL4030 codec changes
ASoC: Modifying the license string GPLv2 for OMAP3 EVM
ALSA: hda - Fix quirk for VAIO type G
ALSA: usb - Quirk to disable master volume control in PCM2702
Linus Torvalds [Wed, 18 Nov 2009 22:54:45 +0000 (14:54 -0800)]
Merge git://git./linux/kernel/git/davem/net-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (42 commits)
cxgb3: fix premature page unmap
ibm_newemac: Fix EMACx_TRTR[TRT] bit shifts
vlan: Fix register_vlan_dev() error path
gro: Fix illegal merging of trailer trash
sungem: Fix Serdes detection.
net: fix mdio section mismatch warning
ppp: fix BUG on non-linear SKB (multilink receive)
ixgbe: Fixing EEH handler to handle more than one error
net: Fix the rollback test in dev_change_name()
Revert "isdn: isdn_ppp: Use SKB list facilities instead of home-grown implementation."
TI Davinci EMAC : Fix Console Hang when bringing the interface down
smsc911x: Fix Console Hang when bringing the interface down.
mISDN: fix error return in HFCmulti_init()
forcedeth: mac address fix
r6040: fix version printing
Bluetooth: Fix regression with L2CAP configuration in Basic Mode
Bluetooth: Select Basic Mode as default for SOCK_SEQPACKET
Bluetooth: Set general bonding security for ACL by default
r8169: Fix receive buffer length when MTU is between 1515 and 1536
can: add the missing netlink get_xstats_size callback
...
Mimi Zohar [Wed, 18 Nov 2009 21:16:06 +0000 (16:16 -0500)]
ima: replace GFP_KERNEL with GFP_NOFS
While running fsstress tests on the NFSv4 mounted ext3 and ext4
filesystem, the following call trace was generated on the nfs
server machine.
Replace GFP_KERNEL with GFP_NOFS in ima_iint_insert() to avoid a
potential deadlock.
=================================
[ INFO: inconsistent lock state ]
2.6.31-31.el6.x86_64 #1
---------------------------------
inconsistent {RECLAIM_FS-ON-W} -> {IN-RECLAIM_FS-W} usage.
kswapd2/75 [HC0[0]:SC0[0]:HE1:SE1] takes:
(jbd2_handle){+.+.?.}, at: [<
ffffffff811edd5e>] jbd2_journal_start+0xfe/0x13f
{RECLAIM_FS-ON-W} state was registered at:
[<
ffffffff81091e40>] mark_held_locks+0x65/0x99
[<
ffffffff81091f31>] lockdep_trace_alloc+0xbd/0xf5
[<
ffffffff81126fdd>] kmem_cache_alloc+0x40/0x185
[<
ffffffff812344d7>] ima_iint_insert+0x3d/0xf1
[<
ffffffff812345b0>] ima_inode_alloc+0x25/0x44
[<
ffffffff811484ac>] inode_init_always+0xec/0x271
[<
ffffffff81148682>] alloc_inode+0x51/0xa1
[<
ffffffff81148700>] new_inode+0x2e/0x94
[<
ffffffff811b2f08>] ext4_new_inode+0xb8/0xdc9
[<
ffffffff811be611>] ext4_create+0xcf/0x175
[<
ffffffff8113e2cd>] vfs_create+0x82/0xb8
[<
ffffffff8113f337>] do_filp_open+0x32c/0x9ee
[<
ffffffff811309b9>] do_sys_open+0x6c/0x12c
[<
ffffffff81130adc>] sys_open+0x2e/0x44
[<
ffffffff81011e42>] system_call_fastpath+0x16/0x1b
[<
ffffffffffffffff>] 0xffffffffffffffff
irq event stamp: 90371
hardirqs last enabled at (90371): [<
ffffffff8112708d>]
kmem_cache_alloc+0xf0/0x185
hardirqs last disabled at (90370): [<
ffffffff81127026>]
kmem_cache_alloc+0x89/0x185
softirqs last enabled at (89492): [<
ffffffff81068ecf>]
__do_softirq+0x1bf/0x1eb
softirqs last disabled at (89477): [<
ffffffff8101312c>] call_softirq+0x1c/0x30
other info that might help us debug this:
2 locks held by kswapd2/75:
#0: (shrinker_rwsem){++++..}, at: [<
ffffffff810f98ba>] shrink_slab+0x44/0x177
#1: (&type->s_umount_key#25){++++..}, at: [<
ffffffff811450ba>]
Reported-by: Muni P. Beerakam <mbeeraka@in.ibm.com>
Reported-by: Amit K. Arora <amitarora@in.ibm.com>
Cc: stable@kernel.org
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>
Roel Kluin [Tue, 17 Nov 2009 22:39:06 +0000 (14:39 -0800)]
OMAP: cs should be positive in gpmc_cs_free()
The index `cs' is signed, test whether it is negative before we release
gpmc_cs_mem[cs].
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Roel Kluin [Tue, 17 Nov 2009 22:39:03 +0000 (14:39 -0800)]
omap: fix unlikely(x) < y
The closing parenthesis was not in the right location.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Takashi Iwai [Wed, 18 Nov 2009 15:38:58 +0000 (16:38 +0100)]
Merge branch 'fix/asoc' into for-linus
Takashi Iwai [Wed, 18 Nov 2009 15:38:49 +0000 (16:38 +0100)]
Merge branch 'fix/hda' into for-linus
Linus Torvalds [Wed, 18 Nov 2009 15:38:19 +0000 (07:38 -0800)]
Merge branch 'sh/for-2.6.32' of git://git./linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.32' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Fixup last users of irq_chip->typename
uio: pm_runtime_disable is needed if failed
Linus Torvalds [Wed, 18 Nov 2009 15:37:51 +0000 (07:37 -0800)]
Merge git://git./linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: option.c: add support for D-Link DWM-162-U5
USB: usbmon: fix bug in mon_buff_area_shrink
USB: xhci: Fix scratchpad deallocation.
USB: xhci: Fix TRB physical to virtual address translation.
USB: xhci: Fix bug memory free after failed initialization.
USB: cdc_acm: Fix memory leak after hangup
USB: cdc_acm: Fix race condition when opening tty
USB: ohci: quirk AMD prefetch for USB 1.1 ISO transfer
Linus Torvalds [Wed, 18 Nov 2009 15:37:38 +0000 (07:37 -0800)]
Merge git://git./linux/kernel/git/gregkh/tty-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6:
tty: cp210x: Fix carrier handling
tty_port: If we are opened non blocking we still need to raise the carrier
Troy Kisky [Tue, 17 Nov 2009 20:51:01 +0000 (13:51 -0700)]
ASoC: tlv320aic23 fix rate selection
Fix the ordering of sr_valid_mask array.
The lower bit of the index represents USB
not bosr.
Reported-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Grazvydas Ignotas [Sat, 7 Nov 2009 21:16:12 +0000 (23:16 +0200)]
ASoC: OMAP3 Pandora: update for TWL4030 codec changes
A while ago TWL4030 had it's playback stream name changed, but
pandora needs it for it's playback path. Update to correct stream
name so that playback works again.
Also mark VIBRA output as not connected.
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Anuj Aggarwal [Tue, 17 Nov 2009 16:13:42 +0000 (21:43 +0530)]
ASoC: Modifying the license string GPLv2 for OMAP3 EVM
Correcting the license string from GPLv2 -> GPL v2.
Found the problem while building OMAP3 ASoC driver as
module.
Signed-off-by: Anuj Aggarwal <anuj.aggarwal@ti.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Divy Le Ray [Tue, 17 Nov 2009 16:38:28 +0000 (16:38 +0000)]
cxgb3: fix premature page unmap
unmap Rx page only when guaranteed that this page won't be
used anymore to allocate rx page chunks.
Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Dave Mitchell [Tue, 17 Nov 2009 14:56:55 +0000 (14:56 +0000)]
ibm_newemac: Fix EMACx_TRTR[TRT] bit shifts
The TRT bit shifts were reversed for EMAC4 and non-EMAC4 during the
port from ibm_emac to ibm_newemac. This patch corrects that error.
Signed-off-by: Dave Mitchell <dmitchell@appliedmicro.com>
Acked-by: Feng Kan <fkan@appliedmicro.com>
Acked-by: Prodyut Hazarika <phazarika@appliedmicro.com>
Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Prarit Bhargava [Thu, 12 Nov 2009 14:18:46 +0000 (09:18 -0500)]
[CPUFREQ] Fix stale cpufreq_cpu_governor pointer
Dave,
Attached is an update of my patch against the cpufreq fixes branch.
Before applying the patch I compiled and booted the tree to see if the panic
was still there -- to my surprise it was not. This is because of the conversion
of cpufreq_cpu_governor to a char[].
While the panic is kaput, the problem of stale data continues and my patch is
still valid. It is possible to end up with the wrong governor after hotplug
events because CPUFREQ_DEFAULT_GOVERNOR is statically linked to a default,
while the cpu siblings may have had a different governor assigned by a user.
ie) the patch is still needed in order to keep the governors assigned
properly when hotplugging devices
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Pallipadi, Venkatesh [Thu, 12 Nov 2009 00:50:29 +0000 (16:50 -0800)]
[CPUFREQ] Resolve time unit thinko in ondemand/conservative govs
ondemand and conservative governors are messing up time units in the
code path where NO_HZ is not enabled and ignore_nice is set. The walltime
idletime stored is in jiffies and nice time calculation is happening in
microseconds.
The problem was reported and diagnosed by Alexander here.
http://marc.info/?l=linux-kernel&m=
125752550404513&w=2
The patch below fixes this thinko.
Reported-by: Alexander Miller <Miller@fmi.uni-stuttgart.de>
Tested-by: Alexander Miller <Miller@fmi.uni-stuttgart.de>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Rusty Russell [Tue, 3 Nov 2009 07:35:30 +0000 (23:35 -0800)]
[CPUFREQ] speedstep-ich: fix error caused by
394122ab144dae4b276d74644a2f11c44a60ac5c
"[CPUFREQ] cpumask: avoid playing with cpus_allowed in speedstep-ich.c"
changed the code to mistakenly pass the current cpu as the "processor"
argument of speedstep_get_frequency(), whereas it should be the type of
the processor.
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=14340
Based on a patch by Dave Mueller.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Dominik Brodowski <linux@brodo.de>
Reported-by: Dave Mueller <dave.mueller@gmx.ch>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Jones <davej@redhat.com>
Dmitry Monakhov [Sun, 4 Oct 2009 20:38:55 +0000 (00:38 +0400)]
[CPUFREQ] Fix use after free on governor restore
Currently on governer backup/restore path we storing governor's pointer.
This is wrong because one may unload governor's module after cpu goes
offline. As result use-after-free will take place on restored cpu.
It is not easy to exploit this bug, but still we have to close this
issue ASAP. Issue was introduced by following commit
084f34939424161669467c19280dbcf637730314
##TESTCASE##
#!/bin/sh -x
modprobe acpi_cpufreq
# Any non default governor, in may case it is "ondemand"
modprobe cpufreq_ondemand
echo ondemand > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
rmmod acpi_cpufreq
rmmod cpufreq_ondemand
modprobe acpi_cpufreq # << use-after-free here.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Dave Jones <davej@redhat.com>
John Villalovos [Fri, 25 Sep 2009 17:30:08 +0000 (13:30 -0400)]
[CPUFREQ] acpi-cpufreq: blacklist Intel 0f68: Fix HT detection and put in notification message
Removing the SMT/HT check, since the Errata doesn't mention
Hyper-Threading.
Adding in a printk, so that the user knows why acpi-cpufreq refuses to
load. Also, once system is blacklisted, don't repeat checks to see if
blacklisted. This also causes the message to only be printed once,
rather than for each CPU.
Signed-off-by: John L. Villalovos <john.l.villalovos@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Roel Kluin [Tue, 6 Oct 2009 15:36:53 +0000 (17:36 +0200)]
[CPUFREQ] powernow-k8: Fix test in get_transition_latency()
Not makes it a bool before the comparison.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Krzysztof Helt [Sat, 24 Oct 2009 15:25:38 +0000 (17:25 +0200)]
[CPUFREQ] longhaul: select Longhaul version 2 for capable CPUs
There is a typo in the longhaul detection code so only Longhaul v1 or Longhaul v3
is selected. The Longhaul v2 is not selected even for CPUs which are capable of.
Tested on PCChips Giga Pro board. Frequency changes work and the Longhaul v2
detects that the board is not capable of changing CPU voltage.
Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Dave Jones <davej@redhat.com>
Thomas Gleixner [Tue, 17 Nov 2009 22:50:45 +0000 (22:50 +0000)]
sh: Fixup last users of irq_chip->typename
The typename member of struct irq_chip was kept for migration purposes
and is obsolete since more than 2 years. Fix up the leftovers.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-sh@vger.kernel.org
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Peter Zijlstra [Tue, 17 Nov 2009 22:06:24 +0000 (14:06 -0800)]
fcntl: rename F_OWNER_GID to F_OWNER_PGRP
This is for consistency with various ioctl() operations that include the
suffix "PGRP" in their names, and also for consistency with PRIO_PGRP,
used with setpriority() and getpriority(). Also, using PGRP instead of
GID avoids confusion with the common abbreviation of "group ID".
I'm fine with anything that makes it more consistent, and if PGRP is what
is the predominant abbreviation then I see no need to further confuse
matters by adding a third one.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Stefani Seibold [Tue, 17 Nov 2009 22:06:23 +0000 (14:06 -0800)]
procfs: fix /proc/<pid>/stat stack pointer for kernel threads
Fix a small issue for the stack pointer in /proc/<pid>/stat. In case of a
kernel thread the value of the printed stack pointer should be 0.
Signed-off-by: Stefani Seibold <stefani@seibold.net>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Andi Kleen [Tue, 17 Nov 2009 22:06:22 +0000 (14:06 -0800)]
mm: allow memory hotplug and hibernation in the same kernel
Allow memory hotplug and hibernation in the same kernel
Memory hotplug and hibernation were exclusive in Kconfig. This is
obviously a problem for distribution kernels who want to support both in
the same image.
After some discussions with Rafael and others the only problem is with
parallel memory hotadd or removal while a hibernation operation is in
process. It was also working for s390 before.
This patch removes the Kconfig level exclusion, and simply makes the
memory add / remove functions grab the pm_mutex to exclude against
hibernation.
Fixes a regression - old kernels didn't exclude memory hotadd and
hibernation.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Tejun Heo [Tue, 17 Nov 2009 22:06:20 +0000 (14:06 -0800)]
workqueue: fix race condition in schedule_on_each_cpu()
Commit
65a64464349883891e21e74af16c05d6e1eeb4e9 ("HWPOISON: Allow
schedule_on_each_cpu() from keventd") which allows schedule_on_each_cpu()
to be called from keventd added a race condition. schedule_on_each_cpu()
may race with cpu hotplug and end up executing the function twice on a
cpu.
Fix it by moving direct execution into the section protected with
get/put_online_cpus(). While at it, update code such that direct
execution is done after works have been scheduled for all other cpus and
drop unnecessary cpu != orig test from flush loop.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Hidetoshi Seto [Tue, 17 Nov 2009 22:06:18 +0000 (14:06 -0800)]
mm/memory_hotplug: fix section mismatch
With CONFIG_MEMORY_HOTPLUG I got following warning:
WARNING: vmlinux.o(.text+0x1276b0): Section mismatch in reference from
the function hotadd_new_pgdat() to the function
.meminit.text:free_area_init_node()
The function hotadd_new_pgdat() references
the function __meminit free_area_init_node().
This is often because hotadd_new_pgdat lacks a __meminit
annotation or the annotation of free_area_init_node is wrong.
Use __ref to fix this.
Signed-off-by: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: Minchan Kim <minchan.kim@gmail.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Joe Perches [Tue, 17 Nov 2009 22:06:15 +0000 (14:06 -0800)]
MAINTAINERS: KMEMCHECK: add file patterns, use M: for Pekka's name and address
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Vegard Nossum <vegardno@ifi.uio.no>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roel Kluin [Tue, 17 Nov 2009 22:06:15 +0000 (14:06 -0800)]
drivers/video/da8xx-fb.c: fix error return
The return should be negative on errors
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Sudhakar Rajashekhara <sudhakar.raj@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Roel Kluin [Tue, 17 Nov 2009 22:06:14 +0000 (14:06 -0800)]
spi: error status should be negative
Return a negative error value instead of a positive
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: dmitry pervushin <dpervushin@embeddedalley.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Zhang Le [Wed, 4 Nov 2009 15:22:59 +0000 (23:22 +0800)]
USB: option.c: add support for D-Link DWM-162-U5
Add D-Link DWM-162-U5 device id 1e0e:ce16 into option driver. The device
has 4 interfaces, of which 1 is handled by storage and the other 3 by
option driver.
The device appears first as CD-only 05c6:2100 device and must be
switched to 1e0e:ce16 mode either by using "eject CD" or usb_modeswitch.
The MessageContent for usb_modeswitch.conf is:
"
55534243e0c26a85000000000000061b000000020000000000000000000000"
Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Stern [Wed, 4 Nov 2009 16:35:53 +0000 (11:35 -0500)]
USB: usbmon: fix bug in mon_buff_area_shrink
This patch (as1299b) fixes a bug in an error-handling path of usbmon's
binary interface. The storage area for URB data is divided into
fixed-size blocks. If an URB's data can't be copied, the area
reserved for it should be decreased to the size of the truncated
information (rounded up to a block boundary). Rounding up the amount
to be removed and subtracting it from the reserved size is definitely
the wrong thing to do.
Also, when the data for an isochronous URB can't be copied, we can
still copy the isoc packet descriptors. In fact the current code does
copy the descriptors, but then sets the capture length to 0 so they
remain inaccessible. The capture length should be reduced to the
length of the descriptors, not set to 0.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Pete Zaitcev <zaitcev@redhat.com>
CC: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sarah Sharp [Wed, 4 Nov 2009 19:22:19 +0000 (11:22 -0800)]
USB: xhci: Fix scratchpad deallocation.
The scratchpad_free() function uses xhci->page_size to free some memory
with pci_free_consistent(). However, the page_size is set to zero before
the call, causing kernel oopses on driver unload. Call scratchpad_free()
before setting xhci->page_size to zero.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Acked-by: John Youn <John.Youn@synopsys.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sarah Sharp [Wed, 4 Nov 2009 06:02:24 +0000 (22:02 -0800)]
USB: xhci: Fix TRB physical to virtual address translation.
The trb_in_td() function in the xHCI driver is supposed to translate a
physical transfer buffer request (TRB) into a virtual pointer to the ring
segment that TRB is in.
Unfortunately, a mistake in this function may cause endless loops as the
driver searches through the linked list of ring segments over and over
again. Fix a couple bugs that may lead to loops or bad output:
1. Bail out if we get a NULL pointer when translating the segment's
private structure and the starting DMA address of the segment chunk. If
this happens, we've been handed a starting TRB pointer from a different
ring.
2. Make sure the function works when there's multiple segments in the
ring. In the while loop to search through the ring segments, use the
current segment variable (cur_seg), rather than the starting segment
variable (start_seg) that is passed in.
3. Stop searching the ring if we've run through all the segments in the
ring.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Sarah Sharp [Wed, 4 Nov 2009 06:02:22 +0000 (22:02 -0800)]
USB: xhci: Fix bug memory free after failed initialization.
If the xHCI driver fails during the memory initialization, xhci->ir_set
may not be a valid pointer. Check that it points to valid DMA'able memory
before writing to that address during the memory freeing process.
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Francesco Lavra [Tue, 3 Nov 2009 10:53:07 +0000 (10:53 +0000)]
USB: cdc_acm: Fix memory leak after hangup
Am Donnerstag, 10. September 2009 15:43:53 schrieb Dietmar Hilbrich:
> Hello,
>
> i have the following problem with the cdc-acm - driver:
>
> I'm using the driver with an "Ericsson F3507G" on a Thinkpad T400.
>
> If a disable the device (with the RFKill-Switch) while it is used by a
> programm like ppp, the driver doesn't seem to correctly clean up the tty,
> even after the program has been closed)
>
> The tty is still active (e.g. there still exists an entry in
> /sys/dev/char/166:0 if ttyACM0 was used) and if a reacticate the device,
> this device entry will be skipped and the Device-Nodes ttyACM1, ttyACM2
> and ttyACM3 will be used.
>
> This problem was introduced with the commit
>
10077d4a6674f535abdbe25cdecb1202af7948f1 (before 2.6.31-rc1) and still
> exists in 2.6.31.
>
> I was able the fix this problem with the following patch:
>
> diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
> index
2bfc41e..
0970d2f 100644
> --- a/drivers/usb/class/cdc-acm.c
> +++ b/drivers/usb/class/cdc-acm.c
> @@ -676,6 +676,7 @@ static void acm_tty_hangup(struct tty_struct *tty)
> struct acm *acm = tty->driver_data;
> tty_port_hangup(&acm->port);
> acm_port_down(acm, 0);
> + acm_tty_unregister(acm);
> }
I have the same problem with cdc-acm (I'm using a Samsung SGH-U900): when I
unplug it from the USB port during a PPP connection, the ppp daemon gets the
hangup correctly (and closes the device), but the struct acm corresponding to
the device disconnected is not freed. Hence reconnecting the device results in
creation of /dev/ttyACM(x+1). The same happens when the system is hibernated
during a PPP connection.
This memory leak is due to the fact that when the tty is hung up,
tty_port_close_start() returns always zero, and acm_tty_close() never reaches
the point where acm_tty_unregister() is called.
Here is a fix for this.
Signed-off-by: Francesco Lavra <francescolavra@interfree.it>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Henry Gebhardt [Wed, 4 Nov 2009 10:19:28 +0000 (11:19 +0100)]
USB: cdc_acm: Fix race condition when opening tty
If acm_rx_tasklet() gets called before tty_port_block_til_ready()
returns, then bulk IN urbs may not be sent. This fixes it.
Signed-off-by: Henry Gebhardt <gebhardt@astro.uni-tuebingen.de>
Acked-by: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Libin Yang [Wed, 4 Nov 2009 06:55:18 +0000 (14:55 +0800)]
USB: ohci: quirk AMD prefetch for USB 1.1 ISO transfer
The following patch in the driver is required to avoid USB 1.1 device
failures that may occur due to requests from USB OHCI controllers may
be overwritten if the latency for any pending request by the USB
controller is very long (in the range of milliseconds).
Signed-off-by: Libin Yang <libin.yang@amd.com>
Cc: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Wed, 28 Oct 2009 20:12:33 +0000 (21:12 +0100)]
tty: cp210x: Fix carrier handling
Original discussion:
http://thread.gmane.org/gmane.linux.usb.general/23217/focus=23248
or
http://marc.info/?l=linux-usb&m=
125553790714133&w=2
9a68e39d4a701fb3be03cae9b462408664ebd205 broke carrier handling so that a
cp210x setup which needed the carrier lines set up (non CLOCAL) which did
not make a call which set the termios bits left the lines down even if
CLOCAL was not asserted.
Fix this not by reverting but by adding the proper dtr_rts and
carrier_raised methods. This both sets the modem lines properly and also
implements the correct blocking semantics for the port as required by
POSIX.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Reported-by: Karl Hiramoto <karl@hiramoto.org>
Tested-by: Karl Hiramoto <karl@hiramoto.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Alan Cox [Wed, 28 Oct 2009 20:12:32 +0000 (21:12 +0100)]
tty_port: If we are opened non blocking we still need to raise the carrier
Original discussion:
http://thread.gmane.org/gmane.linux.usb.general/23217/focus=23248
or
http://marc.info/?l=linux-usb&m=
125553790714133&w=2
The tty_port code inherited a bug common to various drivers it was based
upon. If the tty is opened O_NONBLOCK we do not wait for the carrier to be
raised but we must still raise our modem lines if appropriate.
(There is a second question here about whether we should do so if CLOCAL is
set but that can wait)
Signed-off-by: Alan Cox <alan@linux.intel.com>
Reported-by: Karl Hiramoto <karl@hiramoto.org>
Tested-by: Karl Hiramoto <karl@hiramoto.org>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Tero Kristo [Mon, 16 Nov 2009 13:36:54 +0000 (13:36 +0000)]
omap3: clock: Fixed dpll3_m2x2 rate calculation
Current calculation does not take into account any changes to M2 divisor, and
thus when we change VDD2 OPP, dpll3_m2x2 rate does not change. Fixed by
re-routing dpll3_m2x2 parent to dpll3_m2.
Signed-off-by: Tero Kristo <tero.kristo@nokia.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Rajendra Nayak [Mon, 16 Nov 2009 13:36:53 +0000 (13:36 +0000)]
omap3: clock: Fix the DPLL freqsel computations
Fix the freqsel value computation. Use n instead of (n+1)
The formula in the TRM uses a zero-based N, hence the (n+1); however
at this point in the clock34xx.c code, N is one-based.
Hayati Bayrakdar <h-bayrakdar@ti.com> and Nishanth Menon <nm@ti.com> helped
track down this bug.
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
[paul@pwsan.com: modified commit message]
Cc: Hayati Bayrakdar <h-bayrakdar@ti.com>
Cc: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Linus Torvalds [Tue, 17 Nov 2009 19:01:54 +0000 (11:01 -0800)]
Merge git://git./linux/kernel/git/jejb/scsi-rc-fixes-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6:
[SCSI] bfa: declare MODULE_FIRMWARE
[SCSI] gdth: Prevent negative offsets in ioctl CVE-2009-3080
[SCSI] libsas: do not set res = 0 in sas_ex_discover_dev()
[SCSI] Fix incorrect reporting of host protection capabilities
[SCSI] pmcraid: Fix ppc64 driver build for using cpu_to_le32 on U8 data type
[SCSI] ipr: add workaround for MSI interrupts on P7
[SCSI] scsi_transport_fc: Fix WARN message for FC passthru failure paths
[SCSI] bfa: fix test in bfad_os_fc_host_init()
Linus Torvalds [Tue, 17 Nov 2009 17:42:35 +0000 (09:42 -0800)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
* 'for-linus' of git://oss.sgi.com/xfs/xfs:
xfs: copy li_lsn before dropping AIL lock
XFS bug in log recover with quota (bugzilla id 855)
Linus Torvalds [Tue, 17 Nov 2009 17:20:50 +0000 (09:20 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/dtor/input
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: lifebook - fix settings for CF-72
Input: psmouse - fix breakage introduced by
b7802c5c1ea
Linus Torvalds [Tue, 17 Nov 2009 17:20:38 +0000 (09:20 -0800)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
cifs: clear server inode number flag while autodisabling
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