diff options
| -rw-r--r-- | mm/cma_debug.c | 2 | ||||
| -rw-r--r-- | mm/failslab.c | 14 | ||||
| -rw-r--r-- | mm/gup_benchmark.c | 8 | ||||
| -rw-r--r-- | mm/huge_memory.c | 8 | ||||
| -rw-r--r-- | mm/memblock.c | 3 | ||||
| -rw-r--r-- | mm/memory.c | 8 | ||||
| -rw-r--r-- | mm/page_alloc.c | 22 | ||||
| -rw-r--r-- | mm/page_owner.c | 8 | ||||
| -rw-r--r-- | mm/vmstat.c | 15 |
9 files changed, 24 insertions, 64 deletions
diff --git a/mm/cma_debug.c b/mm/cma_debug.c index ad6723e9d110..b55f28fbe831 100644 --- a/mm/cma_debug.c +++ b/mm/cma_debug.c @@ -191,8 +191,6 @@ static int __init cma_debugfs_init(void) int i; cma_debugfs_root = debugfs_create_dir("cma", NULL); - if (!cma_debugfs_root) - return -ENOMEM; for (i = 0; i < cma_area_count; i++) cma_debugfs_add_one(&cma_areas[i], i); diff --git a/mm/failslab.c b/mm/failslab.c index b135ebb88b6f..ec5aad211c5b 100644 --- a/mm/failslab.c +++ b/mm/failslab.c @@ -48,18 +48,12 @@ static int __init failslab_debugfs_init(void) if (IS_ERR(dir)) return PTR_ERR(dir); - if (!debugfs_create_bool("ignore-gfp-wait", mode, dir, - &failslab.ignore_gfp_reclaim)) - goto fail; - if (!debugfs_create_bool("cache-filter", mode, dir, - &failslab.cache_filter)) - goto fail; + debugfs_create_bool("ignore-gfp-wait", mode, dir, + &failslab.ignore_gfp_reclaim); + debugfs_create_bool("cache-filter", mode, dir, + &failslab.cache_filter); return 0; -fail: - debugfs_remove_recursive(dir); - - return -ENOMEM; } late_initcall(failslab_debugfs_init); diff --git a/mm/gup_benchmark.c b/mm/gup_benchmark.c index 5b42d3d4b60a..6c0279e70cc4 100644 --- a/mm/gup_benchmark.c +++ b/mm/gup_benchmark.c @@ -122,12 +122,8 @@ static const struct file_operations gup_benchmark_fops = { static int gup_benchmark_init(void) { - void *ret; - - ret = debugfs_create_file_unsafe("gup_benchmark", 0600, NULL, NULL, - &gup_benchmark_fops); - if (!ret) - pr_warn("Failed to create gup_benchmark in debugfs"); + debugfs_create_file_unsafe("gup_benchmark", 0600, NULL, NULL, + &gup_benchmark_fops); return 0; } diff --git a/mm/huge_memory.c b/mm/huge_memory.c index d066f7ca1ee8..af07527cd971 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -2887,12 +2887,8 @@ DEFINE_SIMPLE_ATTRIBUTE(split_huge_pages_fops, NULL, split_huge_pages_set, static int __init split_huge_pages_debugfs(void) { - void *ret; - - ret = debugfs_create_file("split_huge_pages", 0200, NULL, NULL, - &split_huge_pages_fops); - if (!ret) - pr_warn("Failed to create split_huge_pages in debugfs"); + debugfs_create_file("split_huge_pages", 0200, NULL, NULL, + &split_huge_pages_fops); return 0; } late_initcall(split_huge_pages_debugfs); diff --git a/mm/memblock.c b/mm/memblock.c index ea31045ba704..470601115892 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -2005,8 +2005,7 @@ DEFINE_SHOW_ATTRIBUTE(memblock_debug); static int __init memblock_init_debugfs(void) { struct dentry *root = debugfs_create_dir("memblock", NULL); - if (!root) - return -ENXIO; + debugfs_create_file("memory", 0444, root, &memblock.memory, &memblock_debug_fops); debugfs_create_file("reserved", 0444, root, diff --git a/mm/memory.c b/mm/memory.c index 79e0173a7d70..6aff43171a7b 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3334,12 +3334,8 @@ DEFINE_DEBUGFS_ATTRIBUTE(fault_around_bytes_fops, static int __init fault_around_debugfs(void) { - void *ret; - - ret = debugfs_create_file_unsafe("fault_around_bytes", 0644, NULL, NULL, - &fault_around_bytes_fops); - if (!ret) - pr_warn("Failed to create fault_around_bytes in debugfs"); + debugfs_create_file_unsafe("fault_around_bytes", 0644, NULL, NULL, + &fault_around_bytes_fops); return 0; } late_initcall(fault_around_debugfs); diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 09bf2c5f8b4b..9be9a22ebe35 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -3230,24 +3230,14 @@ static int __init fail_page_alloc_debugfs(void) dir = fault_create_debugfs_attr("fail_page_alloc", NULL, &fail_page_alloc.attr); - if (IS_ERR(dir)) - return PTR_ERR(dir); - - if (!debugfs_create_bool("ignore-gfp-wait", mode, dir, - &fail_page_alloc.ignore_gfp_reclaim)) - goto fail; - if (!debugfs_create_bool("ignore-gfp-highmem", mode, dir, - &fail_page_alloc.ignore_gfp_highmem)) - goto fail; - if (!debugfs_create_u32("min-order", mode, dir, - &fail_page_alloc.min_order)) - goto fail; - return 0; -fail: - debugfs_remove_recursive(dir); + debugfs_create_bool("ignore-gfp-wait", mode, dir, + &fail_page_alloc.ignore_gfp_reclaim); + debugfs_create_bool("ignore-gfp-highmem", mode, dir, + &fail_page_alloc.ignore_gfp_highmem); + debugfs_create_u32("min-order", mode, dir, &fail_page_alloc.min_order); - return -ENOMEM; + return 0; } late_initcall(fail_page_alloc_debugfs); diff --git a/mm/page_owner.c b/mm/page_owner.c index 28b06524939f..925b6f44a444 100644 --- a/mm/page_owner.c +++ b/mm/page_owner.c @@ -625,16 +625,14 @@ static const struct file_operations proc_page_owner_operations = { static int __init pageowner_init(void) { - struct dentry *dentry; - if (!static_branch_unlikely(&page_owner_inited)) { pr_info("page_owner is disabled\n"); return 0; } - dentry = debugfs_create_file("page_owner", 0400, NULL, - NULL, &proc_page_owner_operations); + debugfs_create_file("page_owner", 0400, NULL, NULL, + &proc_page_owner_operations); - return PTR_ERR_OR_ZERO(dentry); + return 0; } late_initcall(pageowner_init) diff --git a/mm/vmstat.c b/mm/vmstat.c index 83b30edc2f7f..36b56f858f0f 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -2121,21 +2121,14 @@ static int __init extfrag_debug_init(void) struct dentry *extfrag_debug_root; extfrag_debug_root = debugfs_create_dir("extfrag", NULL); - if (!extfrag_debug_root) - return -ENOMEM; - if (!debugfs_create_file("unusable_index", 0444, - extfrag_debug_root, NULL, &unusable_file_ops)) - goto fail; + debugfs_create_file("unusable_index", 0444, extfrag_debug_root, NULL, + &unusable_file_ops); - if (!debugfs_create_file("extfrag_index", 0444, - extfrag_debug_root, NULL, &extfrag_file_ops)) - goto fail; + debugfs_create_file("extfrag_index", 0444, extfrag_debug_root, NULL, + &extfrag_file_ops); return 0; -fail: - debugfs_remove_recursive(extfrag_debug_root); - return -ENOMEM; } module_init(extfrag_debug_init); |