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From: "Prashanth C." <cprash@wipinfo.soft.net>
To: linux-mm@kvack.org
Subject: kmem_cache_init() question
Date: Tue, 15 Jun 1999 13:39:12 +0530	[thread overview]
Message-ID: <000001beb706$5a8b06a0$b7e0a8c0@prashanth.wipinfo.soft.net> (raw)

Hi All,

This question is with reference to following segment of code [ver 2.2.9] in
kmem_cache_init() function (mm/slab.c):

if (num_physpages > (32 << 20) >> PAGE_SHIFT)
    slab_break_gfp_order = SLAB_BREAK_GFP_ORDER_HI;

I found that num_physpages is initialized in mem_init() function
(arch/i386/mm/init.c).  But start_kernel() calls kmem_cache_init() before
mem_init().  So, num_physpages will always(?) be zero when the above code
segment is executed.

Is num_physpages is initialized somewhere else before kmem_cache_init() is
called by start_kernel()?  Please let me know if I am missing something [if
my observation is indeed correct, then slab_break_gfp_order will never be
set to SLAB_BREAK_GFP_ORDER_HI].

Thanks a lot.

Prashanth.

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             reply	other threads:[~1999-06-15 18:34 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1999-06-15  8:09 Prashanth C. [this message]
1999-06-15 15:31 ` Benjamin C.R. LaHaise
1999-06-17  9:54 ` Stephen C. Tweedie
1999-06-17 13:20   ` Benjamin C.R. LaHaise
1999-06-18  4:18   ` Prashanth C.

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