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dm persistent data: set some btree fn parms const

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Mark some constant parameters constant in some dm-btree functions.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
This commit is contained in:
Mike Snitzer
2013-03-01 22:45:47 +00:00
committed by Alasdair G Kergon
parent e4c938111f
commit 018cede93c
2 changed files with 9 additions and 9 deletions
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12
drivers/md/dm-thin-metadata.c
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@@ -280,7 +280,7 @@ static void unpack_block_time(uint64_t v, dm_block_t *b, uint32_t *t)
*t = v & ((1 << 24) - 1);
}
static void data_block_inc(void *context, void *value_le)
static void data_block_inc(void *context, const void *value_le)
{
struct dm_space_map *sm = context;
__le64 v_le;
@@ -292,7 +292,7 @@ static void data_block_inc(void *context, void *value_le)
dm_sm_inc_block(sm, b);
}
static void data_block_dec(void *context, void *value_le)
static void data_block_dec(void *context, const void *value_le)
{
struct dm_space_map *sm = context;
__le64 v_le;
@@ -304,7 +304,7 @@ static void data_block_dec(void *context, void *value_le)
dm_sm_dec_block(sm, b);
}
static int data_block_equal(void *context, void *value1_le, void *value2_le)
static int data_block_equal(void *context, const void *value1_le, const void *value2_le)
{
__le64 v1_le, v2_le;
uint64_t b1, b2;
@@ -318,7 +318,7 @@ static int data_block_equal(void *context, void *value1_le, void *value2_le)
return b1 == b2;
}
static void subtree_inc(void *context, void *value)
static void subtree_inc(void *context, const void *value)
{
struct dm_btree_info *info = context;
__le64 root_le;
@@ -329,7 +329,7 @@ static void subtree_inc(void *context, void *value)
dm_tm_inc(info->tm, root);
}
static void subtree_dec(void *context, void *value)
static void subtree_dec(void *context, const void *value)
{
struct dm_btree_info *info = context;
__le64 root_le;
@@ -341,7 +341,7 @@ static void subtree_dec(void *context, void *value)
DMERR("btree delete failed\n");
}
static int subtree_equal(void *context, void *value1_le, void *value2_le)
static int subtree_equal(void *context, const void *value1_le, const void *value2_le)
{
__le64 v1_le, v2_le;
memcpy(&v1_le, value1_le, sizeof(v1_le));