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| author |   Baolin Wang <baolin.wang@linux.alibaba.com> | 2021-09-02 15:00:03 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2021-09-03 09:58:17 -0700 |
| commit | 062db29358c9bd40d8aa9e96ce7b492b03d669d5 (patch) | |
| tree | 19fa5f58be1dbd38a5578994f918834895f3843f /mm | |
| parent | mm: compaction: support triggering of proactive compaction by user (diff) | |
| download | linux-dev-062db29358c9bd40d8aa9e96ce7b492b03d669d5.tar.xz linux-dev-062db29358c9bd40d8aa9e96ce7b492b03d669d5.zip | |
mm/mempolicy: use readable NUMA_NO_NODE macro instead of magic number
The caller of mpol_misplaced() already use NUMA_NO_NODE to check whether
current page node is misplaced, thus using NUMA_NO_NODE in
mpol_misplaced() instead of magic number is more readable.
Link: https://lkml.kernel.org/r/1b77c0ce21183fa86f4db250b115cf5e27396528.1627558356.git.baolin.wang@linux.alibaba.com
Signed-off-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/mempolicy.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index e675bfb856da..c473d2931708 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -2425,8 +2425,8 @@ static void sp_free(struct sp_node *n) * node id. Policy determination "mimics" alloc_page_vma(). * Called from fault path where we know the vma and faulting address. * - * Return: -1 if the page is in a node that is valid for this policy, or a - * suitable node ID to allocate a replacement page from. + * Return: NUMA_NO_NODE if the page is in a node that is valid for this + * policy, or a suitable node ID to allocate a replacement page from. */ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long addr) { @@ -2437,7 +2437,7 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long int thiscpu = raw_smp_processor_id(); int thisnid = cpu_to_node(thiscpu); int polnid = NUMA_NO_NODE; - int ret = -1; + int ret = NUMA_NO_NODE; pol = get_vma_policy(vma, addr); if (!(pol->flags & MPOL_F_MOF)) |