diff options
| author | Yisheng Xie <[email protected]> | 2018-01-31 16:16:07 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2018-01-31 17:18:36 -0800 |
| commit | 66f308ed7dab1b3460d186a794e1f9c2d229f709 (patch) | |
| tree | faae4027357a5cb0a69e6c2f4fbd279689f92139 | |
| parent | 2e3ca40f03bb13709df40eff2f7fc157803fa5a3 (diff) | |
mm/mempolicy: remove redundant check in get_nodes
We have already checked whether maxnode is a page worth of bits, by:
maxnode > PAGE_SIZE*BITS_PER_BYTE
So no need to check it once more.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Yisheng Xie <[email protected]>
Acked-by: Vlastimil Babka <[email protected]>
Acked-by: David Rientjes <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: David Rientjes <[email protected]>
Cc: Naoya Horiguchi <[email protected]>
Cc: Chris Salls <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Christopher Lameter <[email protected]>
Cc: Tan Xiaojun <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | mm/mempolicy.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 4ce44d3ff03d..6e867a8dcca9 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1282,8 +1282,6 @@ static int get_nodes(nodemask_t *nodes, const unsigned long __user *nmask, /* When the user specified more nodes than supported just check if the non supported part is all zero. */ if (nlongs > BITS_TO_LONGS(MAX_NUMNODES)) { - if (nlongs > PAGE_SIZE/sizeof(long)) - return -EINVAL; for (k = BITS_TO_LONGS(MAX_NUMNODES); k < nlongs; k++) { unsigned long t; if (get_user(t, nmask + k)) |