Commit Graph

25972 Commits

Author SHA1 Message Date
Eric W. Biederman
5e85d4abe3 [PATCH] task: Make task list manipulations RCU safe
While we can currently walk through thread groups, process groups, and
sessions with just the rcu_read_lock, this opens the door to walking the
entire task list.

We already have all of the other RCU guarantees so there is no cost in
doing this, this should be enough so that proc can stop taking the
tasklist lock during readdir.

prev_task was killed because it has no users, and using it will miss new
tasks when doing an rcu traversal.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19 09:13:49 -07:00
Paolo 'Blaisorblade' Giarrusso
181ae4005d [PATCH] uml: make 64-bit COW files compatible with 32-bit ones
This is the minimal fix to make 64-bit UML binaries create 32-bit
compatible COW files and read them.

I've indeed tested that current code doesn't do this - the code gets
SIGFPE for a division by a value read at the wrong place, where 0 is
found.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19 09:13:49 -07:00
Linus Torvalds
8bbde0e6d5 Linux v2.6.17-rc2 2006-04-18 20:00:49 -07:00
Linus Torvalds
038e5e2bf2 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (47 commits)
  [MAINTAINERS] The ham radio code now has website at http://www.linux-ax25.org.
  [MIPS] Use __ffs() instead of ffs() for waybit calculation.
  [MIPS] Fix Makefile bugs for MIPS32/MIPS64 R1 and R2.
  [MIPS] Handle IDE PIO cache aliases on SMP.
  [MIPS] Make mips_srs_init static.
  [MIPS] MIPS boards: Set HZ to 100.
  [MIPS] kgdb: Let gcc compute the array size itself.
  [MIPS] FPU affinity for MT ASE.
  [MIPS] MT: Improved multithreading support.
  [MIPS] kpsd and other AP/SP improvements.
  [MIPS] R2: Instruction hazard barrier.
  [MIPS] Fix genrtc compilation.
  [MIPS] R2: Implement shadow register allocation without spinlock.
  [MIPS] Fix VR41xx build errors.
  [MIPS] Fix tx49_blast_icache32_page_indexed.
  [MIPS] Enable SCHED_NO_NO_OMIT_FRAME_POINTER for MIPS.
  [MIPS] Use "R" constraint for cache_op.
  [MIPS] Rewrite all the assembler interrupt handlers to C.
  [MIPS] Fix the crime against humanity that mipsIRQ.S is.
  [MIPS] Fixup damage done by 22a9835c35.
  ...
2006-04-18 19:49:42 -07:00
Ralf Baechle
d34cb28a37 [MAINTAINERS] The ham radio code now has website at http://www.linux-ax25.org. 2006-04-19 04:14:30 +02:00
Atsushi Nemoto
3c68da798a [MIPS] Use __ffs() instead of ffs() for waybit calculation.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:30 +02:00
Ralf Baechle
9200c0b2a0 [MIPS] Fix Makefile bugs for MIPS32/MIPS64 R1 and R2.
This fixes kernel builds with gcc 3.2 (not 64-bit, that is looking like
it is beyond recovery) and 3.3.  With these bugs fixed we now also can
get undo 3b4c4996a0c24da9e6f8be764e3950b756b18cc0 and similar bits for
SMTC that were added in 79cc8007b93838a670b164b8a55ab3e735a12a8b.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:29 +02:00
Ralf Baechle
7e3bfc7cfc [MIPS] Handle IDE PIO cache aliases on SMP.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:29 +02:00
Ralf Baechle
bb12d612d4 [MIPS] Make mips_srs_init static.
Nothing outside traps.c uses it.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:29 +02:00
Ralf Baechle
b4ade4bf88 [MIPS] MIPS boards: Set HZ to 100.
1000Hz will bring an FPGA CPU down on it's knees and it's even worse on
multithreaded cores.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:29 +02:00
Ralf Baechle
8f6539d559 [MIPS] kgdb: Let gcc compute the array size itself.
This is the same method as used in the serial driver.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:28 +02:00
Ralf Baechle
f088fc84f9 [MIPS] FPU affinity for MT ASE.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:28 +02:00
Ralf Baechle
41c594ab65 [MIPS] MT: Improved multithreading support.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:28 +02:00
Ralf Baechle
2600990e64 [MIPS] kpsd and other AP/SP improvements.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:27 +02:00
Ralf Baechle
bce1a28686 [MIPS] R2: Instruction hazard barrier.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:22 +02:00
Ralf Baechle
a682a24170 [MIPS] Fix genrtc compilation.
Signed-off-by: Ralf Roesch <ralf.roesch@rw-gmbh.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:22 +02:00
Ralf Baechle
193dd2ce2a [MIPS] R2: Implement shadow register allocation without spinlock.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:22 +02:00
Yoichi Yuasa
62a442155e [MIPS] Fix VR41xx build errors.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
2006-04-19 04:14:22 +02:00
Atsushi Nemoto
67a3f6de93 [MIPS] Fix tx49_blast_icache32_page_indexed.
Fix the cache index value in tx49_blast_icache32_page_indexed().
This is a damage by de62893bc0 commit.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:21 +02:00
Atsushi Nemoto
1cc89038f3 [MIPS] Enable SCHED_NO_NO_OMIT_FRAME_POINTER for MIPS.
MIPS get_wchan() no longer requires -fno-omit-frame-pointer.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:21 +02:00
Ralf Baechle
675055bfb5 [MIPS] Use "R" constraint for cache_op.
Gcc might emit an absolute address for the the "m" constraint which
gas unfortunately does not permit.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:21 +02:00
Ralf Baechle
e4ac58afdf [MIPS] Rewrite all the assembler interrupt handlers to C.
Saves like 1,600 lines of code, is way easier to debug, compilers
frequently do a better job than the cut and paste type of handlers many
boards had.  And finally having all the stuff done in a single place
also means alot of bug potencial for the MT ASE is gone.

The only surviving handler in assembler is the DECstation one; I hope
Maciej will rewrite it.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:21 +02:00
Ralf Baechle
d35d473c25 [MIPS] Fix the crime against humanity that mipsIRQ.S is.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:21 +02:00
Ralf Baechle
fde3505c69 [MIPS] Fixup damage done by 22a9835c35.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:21 +02:00
Ralf Baechle
9c1f1257a3 [MIPS] Replace redundant declarations of _end by <asm/sections.h>.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:20 +02:00
Ralf Baechle
ba8990f2ae [MIPS] JMR3927 build fixes for the RTC code.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:20 +02:00
Ralf Baechle
67cbeb334e [MIPS] EV96100: ev96100_cpu_irq needs a struct pt_regs argument.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:20 +02:00
Ralf Baechle
2ef2e1d973 [MIPS] EV96100: Fix over two year old typo in variable name.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:20 +02:00
Ralf Baechle
c40b92e09c [MIPS] Ocelot 3: Fix build errors after the recent move of Marvell headers.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:20 +02:00
Ralf Baechle
088cf96a69 [MIPS] MV6434x: Add prototype of interrupt dispatch function.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:20 +02:00
Ralf Baechle
ac2384a855 [MIPS] it8172: Fix build of serial driver.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:19 +02:00
Ralf Baechle
ed00e87fd0 [MIPS] ITE: Glue build.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:19 +02:00
Ralf Baechle
13626a887f [MIPS] MV6434x: The name of the CPP symbol is __mips__, not __MIPS__.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:19 +02:00
Ralf Baechle
b56bce9a25 [MIPS] Jaguar: Fix build errors after the recent move of Marvell headers.
Some things were renamed because the PPC variant of the MV-643XX now
uses the same header and the Jaguar code didn't catch up on that.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:19 +02:00
Ralf Baechle
0428657d87 [MIPS] ITE8172: Fix build error due to missmatching prototypes.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:19 +02:00
Ralf Baechle
f13b68e817 [MIPS] Fix CONFIG_LIMITED_DMA build.
This fix a build error for the Momentum Jaguar ATX eval board.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:19 +02:00
Ralf Baechle
41d4f0e612 [MIPS] PNX8550 build fix.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:19 +02:00
Ralf Baechle
93373ed4d8 [MIPS] Rewrite spurious_interrupt from assembler to C.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:18 +02:00
Ralf Baechle
c9e321e095 [MIPS] Fix breakage due to the grand makefile crapectomy.
It's cc-option not cc-options.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:14 +02:00
Ralf Baechle
e49ed7f591 [MIPS] Sort out duplicate exports.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:14 +02:00
Ralf Baechle
a8d587a71b [MIPS] Wire up sync_file_range(2).
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:14 +02:00
Ralf Baechle
f115da9cd6 [MIPS] Wire splice syscall.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:13 +02:00
Ralf Baechle
84ada9f856 [MIPS] More SHT_* and SHF_* ELF definitions.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:13 +02:00
Ralf Baechle
91b05e6776 [MIPS] Fix vectored interrupt support in TLB exception handler generator.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:13 +02:00
Ralf Baechle
15c4f67ab8 [MIPS] Provide access functions for c0_badvaddr.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:13 +02:00
Ralf Baechle
ff3eab2a98 [MIPS] Some formatting fixes.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:13 +02:00
Ralf Baechle
7acb783ecd [MIPS] Fixup printk in mips_srs_init.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:13 +02:00
Ralf Baechle
e76038dcc0 [MIPS] Remove redundant initialization of sr_allocated.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:13 +02:00
Ralf Baechle
b4d05cb9cb [MIPS] Make set_vi_srs_handler static.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:12 +02:00
Ralf Baechle
6fd11a2173 [MIPS] Cleanup free_initmem the same way as i386 did.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2006-04-19 04:14:12 +02:00