25 May, 2010
40 commits
-
Allow the use of a .get_maintainer.conf file to control the default
options applied when scripts/get_maintainer.pl is run..get_maintainer.conf can contain any valid command-line argument.
File contents are prepended to any additional command line arguments.
Multiple lines may be used, blank lines ignored, # is a comment.
Updated scripts/get_maintainer.pl version to 0.24
Signed-off-by: Joe Perches
Reviewed-by: Florian Mickler
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
When using --git to determine who to send a patch to, get_maintainers will
currently include all signatures. This can include signers that simply
report an issue or test a patch. Signers that use this tag are not
necessarily good candidates to review new patches.This patch allows get_maintainers to optionally restrict output to only
signatures that use Signed-off-by:, Acked-by:, or Reviewed-by:.Signed-off-by: is included because those are people who are responsible
for the code.Acked-by: is questionable, but as signers that use this tag tend to be
active linux gatekeepers, false positives are tolerable.Reviewed-by: is included because signers responsible for the code thought
that the review feedback for a changeset by that signer was valuable.This patch has been modified from Florian's original submission to change
the supported signature types to the canonical forms and use slightly
different spacing. A couple of spacing issues were also corrected in the
original source. The command line argument was also renamed.Original-patch-by: Florian Mickler
Signed-off-by: Florian Mickler
Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Mark static functions with noinline_for_stack
Before:
akpm:/usr/src/25> objdump -d lib/vsprintf.o | perl scripts/checkstack.pl
0x00000e82 pointer [vsprintf.o]: 344
0x0000198c pointer [vsprintf.o]: 344
0x000025d6 scnprintf [vsprintf.o]: 216
0x00002648 scnprintf [vsprintf.o]: 216
0x00002565 snprintf [vsprintf.o]: 208
0x0000267c sprintf [vsprintf.o]: 208
0x000030a3 bprintf [vsprintf.o]: 208
0x00003b1e sscanf [vsprintf.o]: 208
0x00000608 number [vsprintf.o]: 136
0x00000937 number [vsprintf.o]: 136After:
akpm:/usr/src/25> objdump -d lib/vsprintf.o | perl scripts/checkstack.pl
0x00000a7c symbol_string [vsprintf.o]: 248
0x00000ae8 symbol_string [vsprintf.o]: 248
0x00002310 scnprintf [vsprintf.o]: 216
0x00002382 scnprintf [vsprintf.o]: 216
0x0000229f snprintf [vsprintf.o]: 208
0x000023b6 sprintf [vsprintf.o]: 208
0x00002ddd bprintf [vsprintf.o]: 208
0x00003858 sscanf [vsprintf.o]: 208
0x00000625 number [vsprintf.o]: 136
0x00000954 number [vsprintf.o]: 136Signed-off-by: Joe Perches
Cc: Ingo Molnar
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
New parts supported:
AD5170, AD5171, AD5172, AD5173, AD5273Signed-off-by: Michael Hennerich
Signed-off-by: Mike Frysinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
New parts supported:
AD5280, AD5282, ADN2860Signed-off-by: Michael Hennerich
Signed-off-by: Mike Frysinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
New parts supported:
AD5241, AD5242, AD5243, AD5245, AD5246, AD5247, AD5248Signed-off-by: Michael Hennerich
Signed-off-by: Mike Frysinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Split the bus logic out into separate files so that we can handle I2C and
SPI busses independently. The new SPI bus logic brings in support for a
lot more parts:AD5160, AD5161, AD5162, AD5165, AD5200, AD5201, AD5203,
AD5204, AD5206, AD5207, AD5231, AD5232, AD5233, AD5235,
AD5260, AD5262, AD5263, AD5290, AD5291, AD5292, AD5293,
AD7376, AD8400, AD8402, AD8403, ADN2850[randy.dunlap@oracle.com: fix ad525X_dpot build]
Signed-off-by: Michael Hennerich
Signed-off-by: Mike Frysinger
Signed-off-by: Randy Dunlap
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The possible output data is 16bits, not 8bits, so don't truncate it.
Signed-off-by: Michael Hennerich
Signed-off-by: Mike Frysinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Macro away the duplication to make maintenance easier.
Signed-off-by: Michael Hennerich
Signed-off-by: Mike Frysinger
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Minor cleanup on duplicate __{start/stop}__ksymtab_gpl_future.
Signed-off-by: Wenji Huang
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: OGAWA Hirofumi
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
For now, all users of ratelimit_state allocates it statically, so
DEFINE_RATELIMIT_STATE() is enough. But, I want to use ratelimit_state
for fs, i.e. per super_block to suppress too many error reports.So, this adds ratelimit_state_init() to initialize ratelimite_state
which is dynamically allocated, instead of opencoding.Signed-off-by: OGAWA Hirofumi
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
ratelimit_state initialization of printk_ratelimited() seems broken. This
fixes it by using DEFINE_RATELIMIT_STATE() to initialize spinlock
properly.Signed-off-by: OGAWA Hirofumi
Cc: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
For misc devices, inode->i_cdev doesn't point to the device drivers own
data. Link between file operations and device driver internal data is
lost. Pass pointer to misc device struct via file private data for driver
open function use.Signed-off-by: Samu Onkalo
Cc: Al Viro
Cc: Christoph Hellwig
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
32-bit Sparc used to only allow usage of 24-bit of it's atomic_t type.
This was corrected with linux 2.6.3 when Keith M Wesolowski changed the
implementation to use the parisc approach of having an array of spinlocks
to protect the atomic_t.These warnings were also removed from the sparc implementation when the
new implementation was merged in BKrev:402e4949VThdc6D3iaosSFUgabMfvw, but
the warning still remained in some other places without any 24-bit-only
atomic_t implementation inside the kernel.We should remove these warnings to allow users to rely on the full 32-bit
range of atomic_t.Signed-off-by: Peter Fritzsche
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
The current logging macros are
pr_, dev_, netdev_, and netif_.
pr_ uses warning, the other use warn.Standardize these logging macros a bit more by adding pr_warn and
pr_warn_ratelimited.Right now, there are:
$ for level in emerg alert crit err warn warning notice info ; do \
for prefix in pr dev netdev netif ; do \
echo -n "${prefix}_${level}: `git grep -w "${prefix}_${level}" | wc -l` " ; \
done ; \
echo ; \
done
pr_emerg: 45 dev_emerg: 4 netdev_emerg: 1 netif_emerg: 4
pr_alert: 24 dev_alert: 36 netdev_alert: 1 netif_alert: 6
pr_crit: 24 dev_crit: 22 netdev_crit: 1 netif_crit: 4
pr_err: 2013 dev_err: 8467 netdev_err: 267 netif_err: 240
pr_warn: 0 dev_warn: 1818 netdev_warn: 126 netif_warn: 23
pr_warning: 773 dev_warning: 0 netdev_warning: 0 netif_warning: 0
pr_notice: 148 dev_notice: 111 netdev_notice: 9 netif_notice: 3
pr_info: 1717 dev_info: 3007 netdev_info: 101 netif_info: 85Signed-off-by: Joe Perches
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Quote from Nick piggin's about btrfs patch
- http://www.mail-archive.com/linux-btrfs@vger.kernel.org/msg04472.html."add_to_page_cache_lru is exported, so it should be used. Benefits over
using a private pagevec: neater code, 128 bytes fewer stack used, percpu
lru ordering is preserved, and finally don't need to flush pagevec
before returning so batching may be shared with other LRU insertions."Let's use it instead of private pagevec in ntfs, too.
Signed-off-by: Minchan Kim
Acked-by: Anton Altaparmakov
Cc: Nick Piggin
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
cached_page and lru_pvec have not been used. Let's remove the arguments.
Signed-off-by: Minchan Kim
Acked-by: Anton Altaparmakov
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
gcc-4.3.3 produces the warning:
"format not a string literal and no format arguments"Signed-off-by: Alex Riesen
Cc: Trond Myklebust
Cc: Chuck Lever
Cc: David S. Miller
Acked-by: Tom Talpey
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Handle out-of-range indices before reading what they refer to. And don't
access the one-past-the-end element of the array either.Signed-off-by: Phil Carmody
Cc: Benjamin Herrenschmidt
Cc: Roel Kluin
Cc: Grant Likely
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
- C99 knows about USHRT_MAX/SHRT_MAX/SHRT_MIN, not
USHORT_MAX/SHORT_MAX/SHORT_MIN.- Make SHRT_MIN of type s16, not int, for consistency.
[akpm@linux-foundation.org: fix drivers/dma/timb_dma.c]
[akpm@linux-foundation.org: fix security/keys/keyring.c]
Signed-off-by: Alexey Dobriyan
Acked-by: WANG Cong
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
drivers/char/hangcheck-timer.c is doubly broken. When the overflown value
of TIMER_FREQ is abnormally low, it spams the syslog with KERN_CRIT
messages "Hangcheck: hangcheck value past margin!" But whether it happens
or not depends on HZ and lpj in a complex way. People have hit it
occasionally as far as google search can tell.First, the following line overflows unsigned long:
# define TIMER_FREQ (HZ*loops_per_jiffy)
Second, and more importantly, loops_per_jiffy has little to do with the
con= version from the the time scale of get_cycles() (aka rdtsc) to the
time scale of jiffies.The attached patch resolves both of the problems.
Acked-by: Joel Becker
Cc: john stultz
Cc: Jan Glauber
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Linux does not define __BYTE_ORDER in its endian header files which makes
some header files bend backwards to get at the current endian. Lets
#define __BYTE_ORDER in big_endian.h/litte_endian.h to make it easier for
header files that are used in user space too.In userspace the convention is that
1. _both_ __LITTLE_ENDIAN and __BIG_ENDIAN are defined,
2. you have to test for e.g. __BYTE_ORDER == __BIG_ENDIAN.Signed-off-by: Joakim Tjernlund
Cc: Geert Uytterhoeven
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add __must_check to error pointer handlers to have the compiler warn about
mistakes like:if (err)
ERR_PTR(err);It found two bugs:
Mar 12 Nikula Jani [PATCH] enclosure: fix error path - actually return ERR_PTR() on error
Mar 12 Nikula Jani [PATCH] sunrpc: fix error path - actually return ERR_PTR() on errorSigned-off-by: Jani Nikula
Cc: Phil Carmody
Cc: Alexey Dobriyan
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Currently, the menu governor uses the (corrected) next timer as key item
for predicting the idle duration.It turns out that there are specific cases where this breaks down: There
are cases where we have a very repetitive pattern of idle durations, where
the idle period is pretty much the same, for reasons completely unrelated
to the next timer event. Examples of such repeating patterns are network
loads with irq mitigation, the mouse moving but in theory also the wifi
beacons.This patch adds a relatively simple detector for such repeating patterns,
where the standard deviation of the last 8 idle periods is compared to a
threshold.With this extra predictor in place, measurements show that the DECAY
factor can now be increased (the decaying average will now decay slower)
to get an even more stable result.[arjan@infradead.org: fix bug identified by Frank]
Signed-off-by: Arjan van de Ven
Cc: Corrado Zoccolo
Cc: Frank Rowand
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Architectures that handle DMA-non-coherent memory need to set
ARCH_KMALLOC_MINALIGN to make sure that kmalloc'ed buffer is DMA-safe: the
buffer doesn't share a cache with the others.Signed-off-by: FUJITA Tomonori
Acked-by: David Howells
Cc: Koichi Yasutake
Acked-by: Pekka Enberg
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
asm-generic/atomic.h has been derived from the mn10300 implementation.
Remove the now duplicated mn10300 implementation by including the generic
version instead.This adds cmpxchg_local() and cmpxchg64_local() for free to the
architecture, as they are implemented in asm-generic/atomic.h.Signed-off-by: Mathieu Desnoyers
Acked-by: David Howells
Acked-by: Peter Fritzsche
Acked-by: Arnd Bergmann
Cc: Jamie Lokier
Cc: Ingo Molnar
Cc: Heiko Carstens
Cc: Keith M Wesolowski
Cc: Martin Schwidefsky
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Commit 8b505ca8e2600eb9e7dd2d6b2682a81717671374 ("serial: 68328serial.c:
remove BAUD_TABLE_SIZE macro") misses one use of BAUD_TABLE_SIZE. So the
resulting 68328serial.c does not compile:drivers/serial/68328serial.c: In function `m68328_console_setup':
drivers/serial/68328serial.c:1439: error: `BAUD_TABLE_SIZE' undeclared (first use in this function)
drivers/serial/68328serial.c:1439: error: (Each undeclared identifier is reported only once
drivers/serial/68328serial.c:1439: error: for each function it appears in.)Fix that last use of it.
Signed-off-by: Greg Ungerer
Cc: Thiago Farina
Cc: Alan Cox
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Architectures that handle DMA-non-coherent memory need to set
ARCH_KMALLOC_MINALIGN to make sure that kmalloc'ed buffer is DMA-safe: the
buffer doesn't share a cache with the others.Signed-off-by: FUJITA Tomonori
Acked-by: David Howells
Acked-by: Pekka Enberg
Cc:
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Extend gdbstub to support more features of gdb remote protocol to keep
gdb-7 and emacs gud mode happy:(*) The D command. Detach debugger.
(*) The H command. Handle setting the target thread by ignoring it.
(*) The qAttached command. Indicate we 'attached' to an existing process.
(*) The qC command. Indicate that the current thread ID is 0.
(*) The qOffsets command. Indicate that no relocation has been done.
(*) The qSymbol:: command. Indicate that we're not interested in looking up
any symbol addresses.(*) The qSupported command. Indicate the maximum packet size and the fact
that reverse step and continue aren't supported.(*) The vCont? command. Indicate that we don't support any of its variants.
Also make it possible to trace the commands and replies without tracing
the individual character I/O.[akpm@linux-foundation.org: make gdbstub_handle_query() static]
Signed-off-by: David Howells
Cc: Jason Wessel
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
This ensures that platforms with lowmem PAs above 32 bits work correctly
by avoiding truncating the PA during a left shift.Signed-off-by: Chris Metcalf
Cc: Barry Song
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add global mutex zonelists_mutex to fix the possible race:
CPU0 CPU1 CPU2
(1) zone->present_pages += online_pages;
(2) build_all_zonelists();
(3) alloc_page();
(4) free_page();
(5) build_all_zonelists();
(6) __build_all_zonelists();
(7) zone->pageset = alloc_percpu();In step (3,4), zone->pageset still points to boot_pageset, so bad
things may happen if 2+ nodes are in this state. Even if only 1 node
is accessing the boot_pageset, (3) may still consume too much memory
to fail the memory allocations in step (7).Besides, atomic operation ensures alloc_percpu() in step (7) will never fail
since there is a new fresh memory block added in step(6).[haicheng.li@linux.intel.com: hold zonelists_mutex when build_all_zonelists]
Signed-off-by: Haicheng Li
Signed-off-by: Wu Fengguang
Reviewed-by: Andi Kleen
Cc: Christoph Lameter
Cc: Mel Gorman
Cc: Tejun Heo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
For each new populated zone of hotadded node, need to update its pagesets
with dynamically allocated per_cpu_pageset struct for all possible CPUs:1) Detach zone->pageset from the shared boot_pageset
at end of __build_all_zonelists().2) Use mutex to protect zone->pageset when it's still
shared in onlined_pages()Otherwises, multiple zones of different nodes would share same boot strapping
boot_pageset for same CPU, which will finally cause below kernel panic:------------[ cut here ]------------
kernel BUG at mm/page_alloc.c:1239!
invalid opcode: 0000 [#1] SMP
...
Call Trace:
[] __alloc_pages_nodemask+0x131/0x7b0
[] alloc_pages_current+0x87/0xd0
[] __page_cache_alloc+0x67/0x70
[] __do_page_cache_readahead+0x120/0x260
[] ra_submit+0x21/0x30
[] ondemand_readahead+0x166/0x2c0
[] page_cache_async_readahead+0x80/0xa0
[] generic_file_aio_read+0x364/0x670
[] nfs_file_read+0xca/0x130
[] do_sync_read+0xfa/0x140
[] vfs_read+0xb5/0x1a0
[] sys_read+0x51/0x80
[] system_call_fastpath+0x16/0x1b
RIP [] get_page_from_freelist+0x883/0x900
RSP
---[ end trace 4bda28328b9990db ][akpm@linux-foundation.org: merge fix]
Signed-off-by: Haicheng Li
Signed-off-by: Wu Fengguang
Reviewed-by: Andi Kleen
Reviewed-by: Christoph Lameter
Cc: Mel Gorman
Cc: Tejun Heo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
No behavior change here.
Move some of setup_per_cpu_pageset() code into a new function
setup_zone_pageset() that will be useful for memory hotplug.Signed-off-by: Wu Fengguang
Signed-off-by: Haicheng Li
Reviewed-by: Andi Kleen
Reviewed-by: Christoph Lameter
Cc: Mel Gorman
Cc: Tejun Heo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Got this while compiling for ARM/SA1100:
mm/sparse.c: In function '__section_nr':
mm/sparse.c:135: warning: 'root' is used uninitialized in this functionThis patch follows Russell King's suggestion for a new calculation for
NR_SECTION_ROOTS. Thanks also to Sergei Shtylyov for pointing out the
existence of the macro DIV_ROUND_UP.Atsushi Nemoto observed:
: This fix doesn't just silence the warning - it fixes a real problem.
:
: Without this fix, mem_section[] might have 0 size so mem_section[0]
: will share other variable area. For example, I got:
:
: c030c700 b __warned.16478
: c030c700 B mem_section
: c030c701 b __warned.16483
:
: This might cause very strange behavior. Your patch actually fixes it.Signed-off-by: Marcelo Roberto Jimenez
Cc: Atsushi Nemoto
Cc: KOSAKI Motohiro
Cc: Christoph Lameter
Cc: Mel Gorman
Cc: Minchan Kim
Cc: Yinghai Lu
Cc: Sergei Shtylyov
Cc: Russell King
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
In f4112de6b679d84bd9b9681c7504be7bdfb7c7d5 ("mm: introduce
debug_kmap_atomic") I said that debug_kmap_atomic() needs
CONFIG_TRACE_IRQFLAGS_SUPPORT.It was wrong. (I thought irqs_disabled() is only available when the
architecture has CONFIG_TRACE_IRQFLAGS_SUPPORT)Remove the #ifdef CONFIG_TRACE_IRQFLAGS_SUPPORT check to enable
kmap_atomic() debugging for the architectures which do not have
CONFIG_TRACE_IRQFLAGS_SUPPORT.Reported-by: Andrew Morton
Signed-off-by: Akinobu Mita
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Add parenthesis in a define. This doesn't change functionality.
checkpatch errors:
1) white space fixes
2) add spaces after comasSigned-off-by: matt mooney
Cc: Dan Carpenter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Fix minor spelling errors in a few comments; no code changes.
Signed-off-by: matt mooney
Cc: Dan Carpenter
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds -
Enable users to online CPUs even if the CPUs belongs to a numa node which
doesn't have onlined local memory.The zonlists(pg_data_t.node_zonelists[]) of a numa node are created either
in system boot/init period, or at the time of local memory online. For a
numa node without onlined local memory, its zonelists are not initialized
at present. As a result, any memory allocation operations executed by
CPUs within this node will fail. In fact, an out-of-memory error is
triggered when attempt to online CPUs before memory comes to online.This patch tries to create zonelists for such numa nodes, so that the
memory allocation for this node can be fallback'ed to other nodes.[akpm@linux-foundation.org: remove unneeded export]
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: minskey guo
Cc: Minchan Kim
Cc: Yasunori Goto
Cc: Andi Kleen
Cc: Christoph Lameter
Cc: Tejun Heo
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
