Re: [PATCH] mm: disallow direct reclaim page writeback

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On Wed, 14 Apr 2010 11:40:41 +1000
Dave Chinner <david@xxxxxxxxxxxxx> wrote:

>  50)     3168      64   xfs_vm_writepage+0xab/0x160 [xfs]
>  51)     3104     384   shrink_page_list+0x65e/0x840
>  52)     2720     528   shrink_zone+0x63f/0xe10

A bit OFF TOPIC.

Could you share disassemble of shrink_zone() ?

In my environ.
00000000000115a0 <shrink_zone>:
   115a0:       55                      push   %rbp
   115a1:       48 89 e5                mov    %rsp,%rbp
   115a4:       41 57                   push   %r15
   115a6:       41 56                   push   %r14
   115a8:       41 55                   push   %r13
   115aa:       41 54                   push   %r12
   115ac:       53                      push   %rbx
   115ad:       48 83 ec 78             sub    $0x78,%rsp
   115b1:       e8 00 00 00 00          callq  115b6 <shrink_zone+0x16>
   115b6:       48 89 75 80             mov    %rsi,-0x80(%rbp)

disassemble seems to show 0x78 bytes for stack. And no changes to %rsp
until retrun.

I may misunderstand something...

Thanks,
-Kame

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