From: Joe Perches <joe@xxxxxxxxxxx> Subject: mm: use fallthrough; Convert the various /* fallthrough */ comments to the pseudo-keyword fallthrough; Done via script: https://lore.kernel.org/lkml/b56602fcf79f849e733e7b521bb0e17895d390fa.1582230379.git.joe@xxxxxxxxxxx/ Link: http://lkml.kernel.org/r/f62fea5d10eb0ccfc05d87c242a620c261219b66.camel@xxxxxxxxxxx Signed-off-by: Joe Perches <joe@xxxxxxxxxxx> Reviewed-by: Gustavo A. R. Silva <gustavo@xxxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/gup.c | 2 +- mm/hugetlb_cgroup.c | 6 +++--- mm/ksm.c | 3 +-- mm/list_lru.c | 2 +- mm/memcontrol.c | 2 +- mm/mempolicy.c | 3 --- mm/mmap.c | 5 ++--- mm/shmem.c | 2 +- mm/zsmalloc.c | 2 +- 9 files changed, 11 insertions(+), 16 deletions(-) --- a/mm/gup.c~mm-use-fallthrough +++ a/mm/gup.c @@ -1102,7 +1102,7 @@ retry: goto retry; case -EBUSY: ret = 0; - /* FALLTHRU */ + fallthrough; case -EFAULT: case -ENOMEM: case -EHWPOISON: --- a/mm/hugetlb_cgroup.c~mm-use-fallthrough +++ a/mm/hugetlb_cgroup.c @@ -467,14 +467,14 @@ static int hugetlb_cgroup_read_u64_max(s 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(stru 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( --- a/mm/ksm.c~mm-use-fallthrough +++ a/mm/ksm.c @@ -2813,8 +2813,7 @@ static int ksm_memory_callback(struct no */ 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; --- a/mm/list_lru.c~mm-use-fallthrough +++ a/mm/list_lru.c @@ -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--; --- a/mm/memcontrol.c~mm-use-fallthrough +++ a/mm/memcontrol.c @@ -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; /* --- a/mm/mempolicy.c~mm-use-fallthrough +++ a/mm/mempolicy.c @@ -881,7 +881,6 @@ static void get_policy_nodemask(struct m 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 break; case MPOL_BIND: - /* Fall through */ case MPOL_INTERLEAVE: *mask = mempolicy->v.nodes; break; @@ -2333,7 +2331,6 @@ bool __mpol_equal(struct mempolicy *a, s switch (a->mode) { case MPOL_BIND: - /* Fall through */ case MPOL_INTERLEAVE: return !!nodes_equal(a->v.nodes, b->v.nodes); case MPOL_PREFERRED: --- a/mm/mmap.c~mm-use-fallthrough +++ a/mm/mmap.c @@ -1460,7 +1460,7 @@ unsigned long do_mmap(struct file *file, * 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, 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; --- a/mm/shmem.c~mm-use-fallthrough +++ a/mm/shmem.c @@ -3996,7 +3996,7 @@ bool shmem_huge_enabled(struct vm_area_s 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); --- a/mm/zsmalloc.c~mm-use-fallthrough +++ a/mm/zsmalloc.c @@ -424,7 +424,7 @@ static void *zs_zpool_map(void *pool, un 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; _
