mm, swap: add swap_cluster_list

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This is a code clean up patch without functionality changes.  The
swap_cluster_list data structure and its operations are introduced to
provide some better encapsulation for the free cluster and discard
cluster list operations.  This avoid some code duplication, improved the
code readability, and reduced the total line number.

[akpm@linux-foundation.org: coding-style fixes]
Link: http://lkml.kernel.org/r/1472067356-16004-1-git-send-email-ying.huang@intel.com
Signed-off-by: "Huang, Ying" <ying.huang@intel.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Tim Chen <tim.c.chen@intel.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Shaohua Li <shli@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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This commit is contained in:

Huang Ying 2016-10-07 16:58:42 -07:00 • committed by Linus Torvalds

parent 131ddc5c7d

commit 6b53491598

2 changed files with 70 additions and 74 deletions

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11

include/linux/swap.h

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133

mm/swapfile.c

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