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sparc32: drop swapper_pg_dir

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We save one page of RAM dropping swapper_pg_dir.
It was only used for an assignment in init-mm.c and we
redid this later in srmmu.c anyway.

This is likely a left-over from the sun4c removal.

To avoid a dummy variable we use a simple #define swapper_pg_dir NULL

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sam Ravnborg
2012-07-26 11:02:16 +00:00
committed by David S. Miller
parent 7cdfbc74c8
commit 881e02d298
2 changed files with 3 additions and 4 deletions
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2
arch/sparc/kernel/head_32.S
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@@ -58,8 +58,6 @@ sun4e_notsup:
/* This was the only reasonable way I could think of to properly align
* these page-table data structures.
*/
.globl swapper_pg_dir
swapper_pg_dir: .skip PAGE_SIZE
.globl empty_zero_page
empty_zero_page: .skip PAGE_SIZE