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[PATCH] page migration: handle freeing of pages in migrate_pages()

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Do not leave pages on the lists passed to migrate_pages().  Seems that we will
not need any postprocessing of pages.  This will simplify the handling of
pages by the callers of migrate_pages().

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Hugh Dickins <hugh@veritas.com>
Cc: Jes Sorensen <jes@trained-monkey.org>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Lee Schermerhorn <lee.schermerhorn@hp.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Christoph Lameter
2006-06-23 02:03:52 -07:00
committed by Linus Torvalds
parent e24f0b8f76
commit aaa994b300
3 changed files with 27 additions and 36 deletions
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8
mm/mempolicy.c
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@@ -603,11 +603,8 @@ int migrate_to_node(struct mm_struct *mm, int source, int dest, int flags)
check_range(mm, mm->mmap->vm_start, TASK_SIZE, &nmask,
flags | MPOL_MF_DISCONTIG_OK, &pagelist);
if (!list_empty(&pagelist)) {
if (!list_empty(&pagelist))
err = migrate_pages_to(&pagelist, NULL, dest);
if (!list_empty(&pagelist))
putback_lru_pages(&pagelist);
}
return err;
}
@@ -773,9 +770,6 @@ long do_mbind(unsigned long start, unsigned long len,
err = -EIO;
}
if (!list_empty(&pagelist))
putback_lru_pages(&pagelist);
up_write(&mm->mmap_sem);
mpol_free(new);
return err;