]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
mm/bootmem.c: cleanup on addition to bootmem data list
authorGavin Shan <shangw@linux.vnet.ibm.com>
Tue, 29 May 2012 22:06:46 +0000 (15:06 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Tue, 29 May 2012 23:22:24 +0000 (16:22 -0700)
commit5c2b8a162b5f8616f709bf20d5ec88f709485522
treea07e74eb0f8da552fc9ff0acd1b38817c952ba4c
parente48982734ea0500d1eba4f9d96195acc5406cad6
mm/bootmem.c: cleanup on addition to bootmem data list

The objects of "struct bootmem_data_t" are linked together to form
double-linked list sequentially based on its minimal page frame number.

The current implementation implicitly supports the following cases,
which means the inserting point for current bootmem data depends on how
"list_for_each" works.  That makes the code a little hard to read.
Besides, "list_for_each" and "list_entry" can be replaced with
"list_for_each_entry".

        - The linked list is empty.
        - There has no entry in the linked list, whose minimal page
          frame number is bigger than current one.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
mm/bootmem.c