linux-toradex.git/arch/xtensa/mm, branch v3.9.2

xtensa: clean up files to make them code-style compliant

2012-12-19T05:10:25+00:00

Remove heading and trailing spaces, trim trailing lines, and wrap lines
that are longer than 80 characters.

Signed-off-by: Chris Zankel

xtensa: fix RASID SR initialization

2012-12-19T05:10:25+00:00

set_rasid_register accepts new RASID SR value, but ASID_USER_FIRST is
ASID value for the ring 1; RASID value is made by ASID_INSERT macro.

Signed-off-by: Max Filippov 
Signed-off-by: Chris Zankel

xtensa: fix build warning for arch/xtensa/mm/tlb.c

2012-12-19T05:10:21+00:00

Signed-off-by: Max Filippov 
Signed-off-by: Chris Zankel

xtensa: provide proper assembler function boundaries with ENDPROC()

2012-12-19T05:10:20+00:00

Use ENDPROC() to mark the end of assembler functions.

Signed-off-by: Chris Zankel

xtensa: fix missing return in do_page_fault for SIGBUS case

2012-10-16T04:42:52+00:00

Signed-off-by: Marc Gauthier 
Signed-off-by: Max Filippov 
Signed-off-by: Chris Zankel

readahead: fault retry breaks mmap file read random detection

2012-10-09T07:22:47+00:00

.fault now can retry.  The retry can break state machine of .fault.  In
filemap_fault, if page is miss, ra->mmap_miss is increased.  In the second
try, since the page is in page cache now, ra->mmap_miss is decreased.  And
these are done in one fault, so we can't detect random mmap file access.

Add a new flag to indicate .fault is tried once.  In the second try, skip
ra->mmap_miss decreasing.  The filemap_fault state machine is ok with it.

I only tested x86, didn't test other archs, but looks the change for other
archs is obvious, but who knows :)

Signed-off-by: Shaohua Li 
Cc: Rik van Riel 
Cc: Wu Fengguang 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

xtensa/mm/fault.c: port OOM changes to do_page_fault

2012-07-31T00:25:11+00:00

Commits d065bd810b6d ("mm: retry page fault when blocking on disk
transfer") and 37b23e0525d3 ("x86,mm: make pagefault killable")
introduced changes into the x86 pagefault handler for making the page
fault handler retryable as well as killable.

These changes reduce the mmap_sem hold time, which is crucial during OOM
killer invocation.

Port these changes to xtensa.

Signed-off-by: Kautuk Consul 
Acked-by: Chris Zankel 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

xtensa: use the declarations provided by

2012-06-20T21:39:35+00:00

Cleanups:
  - Include ,
  - Remove the (different) extern declarations,
  - Remove the no longer needed address-of ('&') operators,
  - Use %p to format pointer differences.

Signed-off-by: Geert Uytterhoeven 
Cc: Chris Zankel 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

xtensa: replace xtensa-specific _f{data,text} by _s{data,text}

2012-06-20T21:39:35+00:00

commit a2d063ac216c161 ("extable, core_kernel_data(): Make sure all archs
define _sdata") missed xtensa.  Xtensa does have a start of data marker,
but calls it _fdata, causing

    kernel/built-in.o:(.text+0x964): undefined reference to `_sdata'

_stext was already defined, but it was duplicated by _fdata.

Signed-off-by: Geert Uytterhoeven 
Cc: Steven Rostedt 
Cc: Chris Zankel 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

Disintegrate asm/system.h for Xtensa

2012-03-28T17:30:03+00:00

Disintegrate asm/system.h for Xtensa.

Signed-off-by: David Howells 
cc: Chris Zankel