mm/mempolicy.c: fix indentation of the comments of do_migrate_pages

Currently, do_migrate_pages() have very long comment and this is not
indent properly.  I often misunderstand it is function starting commnents
and confused it.

this patch fixes it.

note: this patch doesn't break 80 column rule. I guess original
      author intended this indentaion, but an accident corrupted it.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: Christoph Lameter <cl@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 44dd9d1521ec49faddfe14283a60d746ac171de7..bda230e52acd94b0475640c4fd6b97895c6d3b9a 100644 (file)
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -888,36 +888,36 @@ int do_migrate_pages(struct mm_struct *mm,
        if (err)
                goto out;
 
-/*
- * Find a 'source' bit set in 'tmp' whose corresponding 'dest'
- * bit in 'to' is not also set in 'tmp'.  Clear the found 'source'
- * bit in 'tmp', and return that <source, dest> pair for migration.
- * The pair of nodemasks 'to' and 'from' define the map.
- *
- * If no pair of bits is found that way, fallback to picking some
- * pair of 'source' and 'dest' bits that are not the same.  If the
- * 'source' and 'dest' bits are the same, this represents a node
- * that will be migrating to itself, so no pages need move.
- *
- * If no bits are left in 'tmp', or if all remaining bits left
- * in 'tmp' correspond to the same bit in 'to', return false
- * (nothing left to migrate).
- *
- * This lets us pick a pair of nodes to migrate between, such that
- * if possible the dest node is not already occupied by some other
- * source node, minimizing the risk of overloading the memory on a
- * node that would happen if we migrated incoming memory to a node
- * before migrating outgoing memory source that same node.
- *
- * A single scan of tmp is sufficient.  As we go, we remember the
- * most recent <s, d> pair that moved (s != d).  If we find a pair
- * that not only moved, but what's better, moved to an empty slot
- * (d is not set in tmp), then we break out then, with that pair.
- * Otherwise when we finish scannng from_tmp, we at least have the
- * most recent <s, d> pair that moved.  If we get all the way through
- * the scan of tmp without finding any node that moved, much less
- * moved to an empty node, then there is nothing left worth migrating.
- */
+       /*
+        * Find a 'source' bit set in 'tmp' whose corresponding 'dest'
+        * bit in 'to' is not also set in 'tmp'.  Clear the found 'source'
+        * bit in 'tmp', and return that <source, dest> pair for migration.
+        * The pair of nodemasks 'to' and 'from' define the map.
+        *
+        * If no pair of bits is found that way, fallback to picking some
+        * pair of 'source' and 'dest' bits that are not the same.  If the
+        * 'source' and 'dest' bits are the same, this represents a node
+        * that will be migrating to itself, so no pages need move.
+        *
+        * If no bits are left in 'tmp', or if all remaining bits left
+        * in 'tmp' correspond to the same bit in 'to', return false
+        * (nothing left to migrate).
+        *
+        * This lets us pick a pair of nodes to migrate between, such that
+        * if possible the dest node is not already occupied by some other
+        * source node, minimizing the risk of overloading the memory on a
+        * node that would happen if we migrated incoming memory to a node
+        * before migrating outgoing memory source that same node.
+        *
+        * A single scan of tmp is sufficient.  As we go, we remember the
+        * most recent <s, d> pair that moved (s != d).  If we find a pair
+        * that not only moved, but what's better, moved to an empty slot
+        * (d is not set in tmp), then we break out then, with that pair.
+        * Otherwise when we finish scannng from_tmp, we at least have the
+        * most recent <s, d> pair that moved.  If we get all the way through
+        * the scan of tmp without finding any node that moved, much less
+        * moved to an empty node, then there is nothing left worth migrating.
+        */
 
        tmp = *from_nodes;
        while (!nodes_empty(tmp)) {