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mm: use fallthrough;

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Convert the various /* fallthrough */ comments to the pseudo-keyword
fallthrough;

Done via script:
https://lore.kernel.org/lkml/b56602fcf79f849e733e7b521bb0e17895d390fa.1582230379.git.joe@perches.com/

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Link: http://lkml.kernel.org/r/f62fea5d10eb0ccfc05d87c242a620c261219b66.camel@perches.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Joe Perches 2020-04-06 20:08:39 -07:00 committed by Linus Torvalds
parent e46b893dd1
commit e4a9bc5896
9 changed files with 11 additions and 16 deletions
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2
mm/gup.c
View File

@ -1102,7 +1102,7 @@ retry:
goto retry;
case -EBUSY:
ret = 0;
/* FALLTHRU */
fallthrough;
case -EFAULT:
case -ENOMEM:
case -EHWPOISON:

6
mm/hugetlb_cgroup.c
View File

@ -467,14 +467,14 @@ static int hugetlb_cgroup_read_u64_max(struct seq_file *seq, void *v)
switch (MEMFILE_ATTR(cft->private)) {
case RES_RSVD_USAGE:
counter = &h_cg->rsvd_hugepage[idx];
/* Fall through. */
fallthrough;
case RES_USAGE:
val = (u64)page_counter_read(counter);
seq_printf(seq, "%llu\n", val * PAGE_SIZE);
break;
case RES_RSVD_LIMIT:
counter = &h_cg->rsvd_hugepage[idx];
/* Fall through. */
fallthrough;
case RES_LIMIT:
val = (u64)counter->max;
if (val == limit)
@ -514,7 +514,7 @@ static ssize_t hugetlb_cgroup_write(struct kernfs_open_file *of,
switch (MEMFILE_ATTR(of_cft(of)->private)) {
case RES_RSVD_LIMIT:
rsvd = true;
/* Fall through. */
fallthrough;
case RES_LIMIT:
mutex_lock(&hugetlb_limit_mutex);
ret = page_counter_set_max(

3
mm/ksm.c
View File

@ -2813,8 +2813,7 @@ static int ksm_memory_callback(struct notifier_block *self,
*/
ksm_check_stable_tree(mn->start_pfn,
mn->start_pfn + mn->nr_pages);
/* fallthrough */
fallthrough;
case MEM_CANCEL_OFFLINE:
mutex_lock(&ksm_thread_mutex);
ksm_run &= ~KSM_RUN_OFFLINE;

2
mm/list_lru.c
View File

@ -223,7 +223,7 @@ restart:
switch (ret) {
case LRU_REMOVED_RETRY:
assert_spin_locked(&nlru->lock);
/* fall through */
fallthrough;
case LRU_REMOVED:
isolated++;
nlru->nr_items--;

2
mm/memcontrol.c
View File

@ -5813,7 +5813,7 @@ retry:
switch (get_mctgt_type(vma, addr, ptent, &target)) {
case MC_TARGET_DEVICE:
device = true;
/* fall through */
fallthrough;
case MC_TARGET_PAGE:
page = target.page;
/*

3
mm/mempolicy.c
View File

@ -881,7 +881,6 @@ static void get_policy_nodemask(struct mempolicy *p, nodemask_t *nodes)
switch (p->mode) {
case MPOL_BIND:
/* Fall through */
case MPOL_INTERLEAVE:
*nodes = p->v.nodes;
break;
@ -2066,7 +2065,6 @@ bool init_nodemask_of_mempolicy(nodemask_t *mask)
break;
case MPOL_BIND:
/* Fall through */
case MPOL_INTERLEAVE:
*mask = mempolicy->v.nodes;
break;
@ -2333,7 +2331,6 @@ bool __mpol_equal(struct mempolicy *a, struct mempolicy *b)
switch (a->mode) {
case MPOL_BIND:
/* Fall through */
case MPOL_INTERLEAVE:
return !!nodes_equal(a->v.nodes, b->v.nodes);
case MPOL_PREFERRED:

5
mm/mmap.c
View File

@ -1460,7 +1460,7 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
* with MAP_SHARED to preserve backward compatibility.
*/
flags &= LEGACY_MAP_MASK;
/* fall through */
fallthrough;
case MAP_SHARED_VALIDATE:
if (flags & ~flags_mask)
return -EOPNOTSUPP;
@ -1487,8 +1487,7 @@ unsigned long do_mmap(struct file *file, unsigned long addr,
vm_flags |= VM_SHARED | VM_MAYSHARE;
if (!(file->f_mode & FMODE_WRITE))
vm_flags &= ~(VM_MAYWRITE | VM_SHARED);
/* fall through */
fallthrough;
case MAP_PRIVATE:
if (!(file->f_mode & FMODE_READ))
return -EACCES;

2
mm/shmem.c
View File

@ -3996,7 +3996,7 @@ bool shmem_huge_enabled(struct vm_area_struct *vma)
if (i_size >= HPAGE_PMD_SIZE &&
i_size >> PAGE_SHIFT >= off)
return true;
/* fall through */
fallthrough;
case SHMEM_HUGE_ADVISE:
/* TODO: implement fadvise() hints */
return (vma->vm_flags & VM_HUGEPAGE);

2
mm/zsmalloc.c
View File

@ -424,7 +424,7 @@ static void *zs_zpool_map(void *pool, unsigned long handle,
case ZPOOL_MM_WO:
zs_mm = ZS_MM_WO;
break;
case ZPOOL_MM_RW: /* fall through */
case ZPOOL_MM_RW:
default:
zs_mm = ZS_MM_RW;
break;