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authorJoe Perches <joe@perches.com>2018-06-14 15:27:58 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-06-15 07:55:25 +0900
commit0825a6f98689d847ab8058c51b3a55f0abcc6563 (patch)
treeafafc007e847815270038de2cf5a23772941d205
parent14f28f5776927be30717986f86b765d49eec392c (diff)
mm: use octal not symbolic permissions
mm/*.c files use symbolic and octal styles for permissions. Using octal and not symbolic permissions is preferred by many as more readable. https://lkml.org/lkml/2016/8/2/1945 Prefer the direct use of octal for permissions. Done using $ scripts/checkpatch.pl -f --types=SYMBOLIC_PERMS --fix-inplace mm/*.c and some typing. Before: $ git grep -P -w "0[0-7]{3,3}" mm | wc -l 44 After: $ git grep -P -w "0[0-7]{3,3}" mm | wc -l 86 Miscellanea: o Whitespace neatening around these conversions. Link: http://lkml.kernel.org/r/2e032ef111eebcd4c5952bae86763b541d373469.1522102887.git.joe@perches.com Signed-off-by: Joe Perches <joe@perches.com> Acked-by: David Rientjes <rientjes@google.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--mm/cleancache.c10
-rw-r--r--mm/cma_debug.c25
-rw-r--r--mm/compaction.c2
-rw-r--r--mm/dmapool.c2
-rw-r--r--mm/failslab.c2
-rw-r--r--mm/frontswap.c11
-rw-r--r--mm/memblock.c9
-rw-r--r--mm/page_alloc.c2
-rw-r--r--mm/page_idle.c2
-rw-r--r--mm/page_owner.c4
-rw-r--r--mm/shmem.c9
-rw-r--r--mm/slab_common.c4
-rw-r--r--mm/vmalloc.c4
-rw-r--r--mm/zsmalloc.c5
-rw-r--r--mm/zswap.c38
15 files changed, 63 insertions, 66 deletions
diff --git a/mm/cleancache.c b/mm/cleancache.c
index 126548b5a292..2bf12da9baa0 100644
--- a/mm/cleancache.c
+++ b/mm/cleancache.c
@@ -307,12 +307,10 @@ static int __init init_cleancache(void)
struct dentry *root = debugfs_create_dir("cleancache", NULL);
if (root == NULL)
return -ENXIO;
- debugfs_create_u64("succ_gets", S_IRUGO, root, &cleancache_succ_gets);
- debugfs_create_u64("failed_gets", S_IRUGO,
- root, &cleancache_failed_gets);
- debugfs_create_u64("puts", S_IRUGO, root, &cleancache_puts);
- debugfs_create_u64("invalidates", S_IRUGO,
- root, &cleancache_invalidates);
+ debugfs_create_u64("succ_gets", 0444, root, &cleancache_succ_gets);
+ debugfs_create_u64("failed_gets", 0444, root, &cleancache_failed_gets);
+ debugfs_create_u64("puts", 0444, root, &cleancache_puts);
+ debugfs_create_u64("invalidates", 0444, root, &cleancache_invalidates);
#endif
return 0;
}
diff --git a/mm/cma_debug.c b/mm/cma_debug.c
index 275df8b5b22e..f23467291cfb 100644
--- a/mm/cma_debug.c
+++ b/mm/cma_debug.c
@@ -172,23 +172,18 @@ static void cma_debugfs_add_one(struct cma *cma, int idx)
tmp = debugfs_create_dir(name, cma_debugfs_root);
- debugfs_create_file("alloc", S_IWUSR, tmp, cma,
- &cma_alloc_fops);
-
- debugfs_create_file("free", S_IWUSR, tmp, cma,
- &cma_free_fops);
-
- debugfs_create_file("base_pfn", S_IRUGO, tmp,
- &cma->base_pfn, &cma_debugfs_fops);
- debugfs_create_file("count", S_IRUGO, tmp,
- &cma->count, &cma_debugfs_fops);
- debugfs_create_file("order_per_bit", S_IRUGO, tmp,
- &cma->order_per_bit, &cma_debugfs_fops);
- debugfs_create_file("used", S_IRUGO, tmp, cma, &cma_used_fops);
- debugfs_create_file("maxchunk", S_IRUGO, tmp, cma, &cma_maxchunk_fops);
+ debugfs_create_file("alloc", 0200, tmp, cma, &cma_alloc_fops);
+ debugfs_create_file("free", 0200, tmp, cma, &cma_free_fops);
+ debugfs_create_file("base_pfn", 0444, tmp,
+ &cma->base_pfn, &cma_debugfs_fops);
+ debugfs_create_file("count", 0444, tmp, &cma->count, &cma_debugfs_fops);
+ debugfs_create_file("order_per_bit", 0444, tmp,
+ &cma->order_per_bit, &cma_debugfs_fops);
+ debugfs_create_file("used", 0444, tmp, cma, &cma_used_fops);
+ debugfs_create_file("maxchunk", 0444, tmp, cma, &cma_maxchunk_fops);
u32s = DIV_ROUND_UP(cma_bitmap_maxno(cma), BITS_PER_BYTE * sizeof(u32));
- debugfs_create_u32_array("bitmap", S_IRUGO, tmp, (u32*)cma->bitmap, u32s);
+ debugfs_create_u32_array("bitmap", 0444, tmp, (u32 *)cma->bitmap, u32s);
}
static int __init cma_debugfs_init(void)
diff --git a/mm/compaction.c b/mm/compaction.c
index 29bd1df18b98..faca45ebe62d 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1899,7 +1899,7 @@ static ssize_t sysfs_compact_node(struct device *dev,
return count;
}
-static DEVICE_ATTR(compact, S_IWUSR, NULL, sysfs_compact_node);
+static DEVICE_ATTR(compact, 0200, NULL, sysfs_compact_node);
int compaction_register_node(struct node *node)
{
diff --git a/mm/dmapool.c b/mm/dmapool.c
index 4d90a64b2fdc..6d4b97e7e9e9 100644
--- a/mm/dmapool.c
+++ b/mm/dmapool.c
@@ -105,7 +105,7 @@ show_pools(struct device *dev, struct device_attribute *attr, char *buf)
return PAGE_SIZE - size;
}
-static DEVICE_ATTR(pools, S_IRUGO, show_pools, NULL);
+static DEVICE_ATTR(pools, 0444, show_pools, NULL);
/**
* dma_pool_create - Creates a pool of consistent memory blocks, for dma.
diff --git a/mm/failslab.c b/mm/failslab.c
index 1f2f248e3601..b135ebb88b6f 100644
--- a/mm/failslab.c
+++ b/mm/failslab.c
@@ -42,7 +42,7 @@ __setup("failslab=", setup_failslab);
static int __init failslab_debugfs_init(void)
{
struct dentry *dir;
- umode_t mode = S_IFREG | S_IRUSR | S_IWUSR;
+ umode_t mode = S_IFREG | 0600;
dir = fault_create_debugfs_attr("failslab", NULL, &failslab.attr);
if (IS_ERR(dir))
diff --git a/mm/frontswap.c b/mm/frontswap.c
index 4f5476a0f955..157e5bf63504 100644
--- a/mm/frontswap.c
+++ b/mm/frontswap.c
@@ -486,12 +486,11 @@ static int __init init_frontswap(void)
struct dentry *root = debugfs_create_dir("frontswap", NULL);
if (root == NULL)
return -ENXIO;
- debugfs_create_u64("loads", S_IRUGO, root, &frontswap_loads);
- debugfs_create_u64("succ_stores", S_IRUGO, root, &frontswap_succ_stores);
- debugfs_create_u64("failed_stores", S_IRUGO, root,
- &frontswap_failed_stores);
- debugfs_create_u64("invalidates", S_IRUGO,
- root, &frontswap_invalidates);
+ debugfs_create_u64("loads", 0444, root, &frontswap_loads);
+ debugfs_create_u64("succ_stores", 0444, root, &frontswap_succ_stores);
+ debugfs_create_u64("failed_stores", 0444, root,
+ &frontswap_failed_stores);
+ debugfs_create_u64("invalidates", 0444, root, &frontswap_invalidates);
#endif
return 0;
}
diff --git a/mm/memblock.c b/mm/memblock.c
index f1dba2826d0f..cc16d70b8333 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -1809,10 +1809,13 @@ static int __init memblock_init_debugfs(void)
struct dentry *root = debugfs_create_dir("memblock", NULL);
if (!root)
return -ENXIO;
- debugfs_create_file("memory", S_IRUGO, root, &memblock.memory, &memblock_debug_fops);
- debugfs_create_file("reserved", S_IRUGO, root, &memblock.reserved, &memblock_debug_fops);
+ debugfs_create_file("memory", 0444, root,
+ &memblock.memory, &memblock_debug_fops);
+ debugfs_create_file("reserved", 0444, root,
+ &memblock.reserved, &memblock_debug_fops);
#ifdef CONFIG_HAVE_MEMBLOCK_PHYS_MAP
- debugfs_create_file("physmem", S_IRUGO, root, &memblock.physmem, &memblock_debug_fops);
+ debugfs_create_file("physmem", 0444, root,
+ &memblock.physmem, &memblock_debug_fops);
#endif
return 0;
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 07b3c23762ad..1521100f1e63 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3061,7 +3061,7 @@ static bool should_fail_alloc_page(gfp_t gfp_mask, unsigned int order)
static int __init fail_page_alloc_debugfs(void)
{
- umode_t mode = S_IFREG | S_IRUSR | S_IWUSR;
+ umode_t mode = S_IFREG | 0600;
struct dentry *dir;
dir = fault_create_debugfs_attr("fail_page_alloc", NULL,
diff --git a/mm/page_idle.c b/mm/page_idle.c
index e412a63b2b74..6302bc62c27d 100644
--- a/mm/page_idle.c
+++ b/mm/page_idle.c
@@ -201,7 +201,7 @@ static ssize_t page_idle_bitmap_write(struct file *file, struct kobject *kobj,
}
static struct bin_attribute page_idle_bitmap_attr =
- __BIN_ATTR(bitmap, S_IRUSR | S_IWUSR,
+ __BIN_ATTR(bitmap, 0600,
page_idle_bitmap_read, page_idle_bitmap_write, 0);
static struct bin_attribute *page_idle_bin_attrs[] = {
diff --git a/mm/page_owner.c b/mm/page_owner.c
index 75d21a2259b3..d80adfe702d3 100644
--- a/mm/page_owner.c
+++ b/mm/page_owner.c
@@ -631,8 +631,8 @@ static int __init pageowner_init(void)
return 0;
}
- dentry = debugfs_create_file("page_owner", S_IRUSR, NULL,
- NULL, &proc_page_owner_operations);
+ dentry = debugfs_create_file("page_owner", 0400, NULL,
+ NULL, &proc_page_owner_operations);
return PTR_ERR_OR_ZERO(dentry);
}
diff --git a/mm/shmem.c b/mm/shmem.c
index e9a7ac74823d..2cab84403055 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -3013,7 +3013,8 @@ static int shmem_symlink(struct inode *dir, struct dentry *dentry, const char *s
if (len > PAGE_SIZE)
return -ENAMETOOLONG;
- inode = shmem_get_inode(dir->i_sb, dir, S_IFLNK|S_IRWXUGO, 0, VM_NORESERVE);
+ inode = shmem_get_inode(dir->i_sb, dir, S_IFLNK | 0777, 0,
+ VM_NORESERVE);
if (!inode)
return -ENOSPC;
@@ -3445,7 +3446,7 @@ static int shmem_show_options(struct seq_file *seq, struct dentry *root)
sbinfo->max_blocks << (PAGE_SHIFT - 10));
if (sbinfo->max_inodes != shmem_default_max_inodes())
seq_printf(seq, ",nr_inodes=%lu", sbinfo->max_inodes);
- if (sbinfo->mode != (S_IRWXUGO | S_ISVTX))
+ if (sbinfo->mode != (0777 | S_ISVTX))
seq_printf(seq, ",mode=%03ho", sbinfo->mode);
if (!uid_eq(sbinfo->uid, GLOBAL_ROOT_UID))
seq_printf(seq, ",uid=%u",
@@ -3486,7 +3487,7 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent)
if (!sbinfo)
return -ENOMEM;
- sbinfo->mode = S_IRWXUGO | S_ISVTX;
+ sbinfo->mode = 0777 | S_ISVTX;
sbinfo->uid = current_fsuid();
sbinfo->gid = current_fsgid();
sb->s_fs_info = sbinfo;
@@ -3929,7 +3930,7 @@ static struct file *__shmem_file_setup(struct vfsmount *mnt, const char *name, l
d_set_d_op(path.dentry, &anon_ops);
res = ERR_PTR(-ENOSPC);
- inode = shmem_get_inode(sb, NULL, S_IFREG | S_IRWXUGO, 0, flags);
+ inode = shmem_get_inode(sb, NULL, S_IFREG | 0777, 0, flags);
if (!inode)
goto put_memory;
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 42aca26d61d0..890b1f04a03a 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -1243,9 +1243,9 @@ void cache_random_seq_destroy(struct kmem_cache *cachep)
#if defined(CONFIG_SLAB) || defined(CONFIG_SLUB_DEBUG)
#ifdef CONFIG_SLAB
-#define SLABINFO_RIGHTS (S_IWUSR | S_IRUSR)
+#define SLABINFO_RIGHTS (0600)
#else
-#define SLABINFO_RIGHTS S_IRUSR
+#define SLABINFO_RIGHTS (0400)
#endif
static void print_slabinfo_header(struct seq_file *m)
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 89efac3a020e..cfea25be7754 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2741,11 +2741,11 @@ static const struct seq_operations vmalloc_op = {
static int __init proc_vmalloc_init(void)
{
if (IS_ENABLED(CONFIG_NUMA))
- proc_create_seq_private("vmallocinfo", S_IRUSR, NULL,
+ proc_create_seq_private("vmallocinfo", 0400, NULL,
&vmalloc_op,
nr_node_ids * sizeof(unsigned int), NULL);
else
- proc_create_seq("vmallocinfo", S_IRUSR, NULL, &vmalloc_op);
+ proc_create_seq("vmallocinfo", 0400, NULL, &vmalloc_op);
return 0;
}
module_init(proc_vmalloc_init);
diff --git a/mm/zsmalloc.c b/mm/zsmalloc.c
index 61cb05dc950c..8d87e973a4f5 100644
--- a/mm/zsmalloc.c
+++ b/mm/zsmalloc.c
@@ -661,8 +661,9 @@ static void zs_pool_stat_create(struct zs_pool *pool, const char *name)
}
pool->stat_dentry = entry;
- entry = debugfs_create_file("classes", S_IFREG | S_IRUGO,
- pool->stat_dentry, pool, &zs_stats_size_fops);
+ entry = debugfs_create_file("classes", S_IFREG | 0444,
+ pool->stat_dentry, pool,
+ &zs_stats_size_fops);
if (!entry) {
pr_warn("%s: debugfs file entry <%s> creation failed\n",
name, "classes");
diff --git a/mm/zswap.c b/mm/zswap.c
index 61a5c41972db..7d34e69507e3 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -1256,26 +1256,26 @@ static int __init zswap_debugfs_init(void)
if (!zswap_debugfs_root)
return -ENOMEM;
- debugfs_create_u64("pool_limit_hit", S_IRUGO,
- zswap_debugfs_root, &zswap_pool_limit_hit);
- debugfs_create_u64("reject_reclaim_fail", S_IRUGO,
- zswap_debugfs_root, &zswap_reject_reclaim_fail);
- debugfs_create_u64("reject_alloc_fail", S_IRUGO,
- zswap_debugfs_root, &zswap_reject_alloc_fail);
- debugfs_create_u64("reject_kmemcache_fail", S_IRUGO,
- zswap_debugfs_root, &zswap_reject_kmemcache_fail);
- debugfs_create_u64("reject_compress_poor", S_IRUGO,
- zswap_debugfs_root, &zswap_reject_compress_poor);
- debugfs_create_u64("written_back_pages", S_IRUGO,
- zswap_debugfs_root, &zswap_written_back_pages);
- debugfs_create_u64("duplicate_entry", S_IRUGO,
- zswap_debugfs_root, &zswap_duplicate_entry);
- debugfs_create_u64("pool_total_size", S_IRUGO,
- zswap_debugfs_root, &zswap_pool_total_size);
- debugfs_create_atomic_t("stored_pages", S_IRUGO,
- zswap_debugfs_root, &zswap_stored_pages);
+ debugfs_create_u64("pool_limit_hit", 0444,
+ zswap_debugfs_root, &zswap_pool_limit_hit);
+ debugfs_create_u64("reject_reclaim_fail", 0444,
+ zswap_debugfs_root, &zswap_reject_reclaim_fail);
+ debugfs_create_u64("reject_alloc_fail", 0444,
+ zswap_debugfs_root, &zswap_reject_alloc_fail);
+ debugfs_create_u64("reject_kmemcache_fail", 0444,
+ zswap_debugfs_root, &zswap_reject_kmemcache_fail);
+ debugfs_create_u64("reject_compress_poor", 0444,
+ zswap_debugfs_root, &zswap_reject_compress_poor);
+ debugfs_create_u64("written_back_pages", 0444,
+ zswap_debugfs_root, &zswap_written_back_pages);
+ debugfs_create_u64("duplicate_entry", 0444,
+ zswap_debugfs_root, &zswap_duplicate_entry);
+ debugfs_create_u64("pool_total_size", 0444,
+ zswap_debugfs_root, &zswap_pool_total_size);
+ debugfs_create_atomic_t("stored_pages", 0444,
+ zswap_debugfs_root, &zswap_stored_pages);
debugfs_create_atomic_t("same_filled_pages", 0444,
- zswap_debugfs_root, &zswap_same_filled_pages);
+ zswap_debugfs_root, &zswap_same_filled_pages);
return 0;
}