Merge branch 'next' (accumulated 3.16 merge window patches) into master

Now that 3.15 is released, this merges the 'next' branch into 'master',
bringing us to the normal situation where my 'master' branch is the
merge window.

* accumulated work in next: (6809 commits)
  ufs: sb mutex merge + mutex_destroy
  powerpc: update comments for generic idle conversion
  cris: update comments for generic idle conversion
  idle: remove cpu_idle() forward declarations
  nbd: zero from and len fields in NBD_CMD_DISCONNECT.
  mm: convert some level-less printks to pr_*
  MAINTAINERS: adi-buildroot-devel is moderated
  MAINTAINERS: add linux-api for review of API/ABI changes
  mm/kmemleak-test.c: use pr_fmt for logging
  fs/dlm/debug_fs.c: replace seq_printf by seq_puts
  fs/dlm/lockspace.c: convert simple_str to kstr
  fs/dlm/config.c: convert simple_str to kstr
  mm: mark remap_file_pages() syscall as deprecated
  mm: memcontrol: remove unnecessary memcg argument from soft limit functions
  mm: memcontrol: clean up memcg zoneinfo lookup
  mm/memblock.c: call kmemleak directly from memblock_(alloc|free)
  mm/mempool.c: update the kmemleak stack trace for mempool allocations
  lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations
  mm: introduce kmemleak_update_trace()
  mm/kmemleak.c: use %u to print ->checksum
  ...

1 files changed, 43 insertions, 34 deletions

diff --git a/fs/jfs/super.c b/fs/jfs/super.c
index 97f7fda51890..adf8cb045b9e 100644
--- a/fs/jfs/super.c
+++ b/fs/jfs/super.c
@@ -50,14 +50,14 @@ MODULE_DESCRIPTION("The Journaled Filesystem (JFS)");
 MODULE_AUTHOR("Steve Best/Dave Kleikamp/Barry Arndt, IBM");
 MODULE_LICENSE("GPL");
 
-static struct kmem_cache * jfs_inode_cachep;
+static struct kmem_cache *jfs_inode_cachep;
 
 static const struct super_operations jfs_super_operations;
 static const struct export_operations jfs_export_operations;
 static struct file_system_type jfs_fs_type;
 
 #define MAX_COMMIT_THREADS 64
-static int commit_threads = 0;
+static int commit_threads;
 module_param(commit_threads, int, 0);
 MODULE_PARM_DESC(commit_threads, "Number of commit threads");
 
@@ -84,8 +84,7 @@ static void jfs_handle_error(struct super_block *sb)
 		panic("JFS (device %s): panic forced after error\n",
 			sb->s_id);
 	else if (sbi->flag & JFS_ERR_REMOUNT_RO) {
-		jfs_err("ERROR: (device %s): remounting filesystem "
-			"as read-only\n",
+		jfs_err("ERROR: (device %s): remounting filesystem as read-only\n",
 			sb->s_id);
 		sb->s_flags |= MS_RDONLY;
 	}
@@ -273,7 +272,10 @@ static int parse_options(char *options, struct super_block *sb, s64 *newLVSize,
 		case Opt_resize:
 		{
 			char *resize = args[0].from;
-			*newLVSize = simple_strtoull(resize, &resize, 0);
+			int rc = kstrtoll(resize, 0, newLVSize);
+
+			if (rc)
+				goto cleanup;
 			break;
 		}
 		case Opt_resize_nosize:
@@ -327,7 +329,11 @@ static int parse_options(char *options, struct super_block *sb, s64 *newLVSize,
 		case Opt_uid:
 		{
 			char *uid = args[0].from;
-			uid_t val = simple_strtoul(uid, &uid, 0);
+			uid_t val;
+			int rc = kstrtouint(uid, 0, &val);
+
+			if (rc)
+				goto cleanup;
 			sbi->uid = make_kuid(current_user_ns(), val);
 			if (!uid_valid(sbi->uid))
 				goto cleanup;
@@ -337,7 +343,11 @@ static int parse_options(char *options, struct super_block *sb, s64 *newLVSize,
 		case Opt_gid:
 		{
 			char *gid = args[0].from;
-			gid_t val = simple_strtoul(gid, &gid, 0);
+			gid_t val;
+			int rc = kstrtouint(gid, 0, &val);
+
+			if (rc)
+				goto cleanup;
 			sbi->gid = make_kgid(current_user_ns(), val);
 			if (!gid_valid(sbi->gid))
 				goto cleanup;
@@ -347,7 +357,10 @@ static int parse_options(char *options, struct super_block *sb, s64 *newLVSize,
 		case Opt_umask:
 		{
 			char *umask = args[0].from;
-			sbi->umask = simple_strtoul(umask, &umask, 8);
+			int rc = kstrtouint(umask, 8, &sbi->umask);
+
+			if (rc)
+				goto cleanup;
 			if (sbi->umask & ~0777) {
 				pr_err("JFS: Invalid value of umask\n");
 				goto cleanup;
@@ -363,12 +376,10 @@ static int parse_options(char *options, struct super_block *sb, s64 *newLVSize,
 			 * -> user has more control over the online trimming
 			 */
 			sbi->minblks_trim = 64;
-			if (blk_queue_discard(q)) {
+			if (blk_queue_discard(q))
 				*flag |= JFS_DISCARD;
-			} else {
-				pr_err("JFS: discard option " \
-					"not supported on device\n");
-			}
+			else
+				pr_err("JFS: discard option not supported on device\n");
 			break;
 		}
 
@@ -380,20 +391,21 @@ static int parse_options(char *options, struct super_block *sb, s64 *newLVSize,
 		{
 			struct request_queue *q = bdev_get_queue(sb->s_bdev);
 			char *minblks_trim = args[0].from;
+			int rc;
 			if (blk_queue_discard(q)) {
 				*flag |= JFS_DISCARD;
-				sbi->minblks_trim = simple_strtoull(
-					minblks_trim, &minblks_trim, 0);
-			} else {
-				pr_err("JFS: discard option " \
-					"not supported on device\n");
-			}
+				rc = kstrtouint(minblks_trim, 0,
+						&sbi->minblks_trim);
+				if (rc)
+					goto cleanup;
+			} else
+				pr_err("JFS: discard option not supported on device\n");
 			break;
 		}
 
 		default:
-			printk("jfs: Unrecognized mount option \"%s\" "
-					" or missing value\n", p);
+			printk("jfs: Unrecognized mount option \"%s\" or missing value\n",
+			       p);
 			goto cleanup;
 		}
 	}
@@ -419,14 +431,12 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data)
 	int ret;
 
 	sync_filesystem(sb);
-	if (!parse_options(data, sb, &newLVSize, &flag)) {
+	if (!parse_options(data, sb, &newLVSize, &flag))
 		return -EINVAL;
-	}
 
 	if (newLVSize) {
 		if (sb->s_flags & MS_RDONLY) {
-			pr_err("JFS: resize requires volume" \
-				" to be mounted read-write\n");
+			pr_err("JFS: resize requires volume to be mounted read-write\n");
 			return -EROFS;
 		}
 		rc = jfs_extendfs(sb, newLVSize, 0);
@@ -452,9 +462,8 @@ static int jfs_remount(struct super_block *sb, int *flags, char *data)
 	}
 	if ((!(sb->s_flags & MS_RDONLY)) && (*flags & MS_RDONLY)) {
 		rc = dquot_suspend(sb, -1);
-		if (rc < 0) {
+		if (rc < 0)
 			return rc;
-		}
 		rc = jfs_umount_rw(sb);
 		JFS_SBI(sb)->flag = flag;
 		return rc;
@@ -487,7 +496,7 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
 	if (!new_valid_dev(sb->s_bdev->bd_dev))
 		return -EOVERFLOW;
 
-	sbi = kzalloc(sizeof (struct jfs_sb_info), GFP_KERNEL);
+	sbi = kzalloc(sizeof(struct jfs_sb_info), GFP_KERNEL);
 	if (!sbi)
 		return -ENOMEM;
 
@@ -548,9 +557,8 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
 
 	rc = jfs_mount(sb);
 	if (rc) {
-		if (!silent) {
+		if (!silent)
 			jfs_err("jfs_mount failed w/return code = %d", rc);
-		}
 		goto out_mount_failed;
 	}
 	if (sb->s_flags & MS_RDONLY)
@@ -587,7 +595,8 @@ static int jfs_fill_super(struct super_block *sb, void *data, int silent)
 	 * Page cache is indexed by long.
 	 * I would use MAX_LFS_FILESIZE, but it's only half as big
 	 */
-	sb->s_maxbytes = min(((u64) PAGE_CACHE_SIZE << 32) - 1, (u64)sb->s_maxbytes);
+	sb->s_maxbytes = min(((u64) PAGE_CACHE_SIZE << 32) - 1,
+			     (u64)sb->s_maxbytes);
 #endif
 	sb->s_time_gran = 1;
 	return 0;
@@ -597,9 +606,8 @@ out_no_root:
 
 out_no_rw:
 	rc = jfs_umount(sb);
-	if (rc) {
+	if (rc)
 		jfs_err("jfs_umount failed with return code %d", rc);
-	}
 out_mount_failed:
 	filemap_write_and_wait(sbi->direct_inode->i_mapping);
 	truncate_inode_pages(sbi->direct_inode->i_mapping, 0);
@@ -924,7 +932,8 @@ static int __init init_jfs_fs(void)
 		commit_threads = MAX_COMMIT_THREADS;
 
 	for (i = 0; i < commit_threads; i++) {
-		jfsCommitThread[i] = kthread_run(jfs_lazycommit, NULL, "jfsCommit");
+		jfsCommitThread[i] = kthread_run(jfs_lazycommit, NULL,
+						 "jfsCommit");
 		if (IS_ERR(jfsCommitThread[i])) {
 			rc = PTR_ERR(jfsCommitThread[i]);
 			jfs_err("init_jfs_fs: fork failed w/rc = %d", rc);