[PATCH] fs: Conversions from kmalloc+memset to k(z|c)alloc

Conversions from kmalloc+memset to kzalloc.
Signed-off-by: Panagiotis Issaris <takis@issaris.org>
Jffs2-bit-acked-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/adfs/super.c

@@ -339,11 +339,10 @@ static int adfs_fill_super(struct super_block *sb, void *data, int silent)
 
 	sb->s_flags |= MS_NODIRATIME;
 
-	asb = kmalloc(sizeof(*asb), GFP_KERNEL);
+	asb = kzalloc(sizeof(*asb), GFP_KERNEL);
 	if (!asb)
 		return -ENOMEM;
 	sb->s_fs_info = asb;
-	memset(asb, 0, sizeof(*asb));
 
 	/* set default options */
 	asb->s_uid = 0;

fs/affs/super.c

@@ -280,11 +280,10 @@ static int affs_fill_super(struct super_block *sb, void *data, int silent)
 	sb->s_op                = &affs_sops;
 	sb->s_flags |= MS_NODIRATIME;
 
-	sbi = kmalloc(sizeof(struct affs_sb_info), GFP_KERNEL);
+	sbi = kzalloc(sizeof(struct affs_sb_info), GFP_KERNEL);
 	if (!sbi)
 		return -ENOMEM;
 	sb->s_fs_info = sbi;
-	memset(sbi, 0, sizeof(*sbi));
 	init_MUTEX(&sbi->s_bmlock);
 
 	if (!parse_options(data,&uid,&gid,&i,&reserved,&root_block,

fs/afs/vlocation.c

@@ -281,11 +281,10 @@ int afs_vlocation_lookup(struct afs_cell *cell,
 	spin_unlock(&cell->vl_gylock);
 
 	/* not in the cell's in-memory lists - create a new record */
-	vlocation = kmalloc(sizeof(struct afs_vlocation), GFP_KERNEL);
+	vlocation = kzalloc(sizeof(struct afs_vlocation), GFP_KERNEL);
 	if (!vlocation)
 		return -ENOMEM;
 
-	memset(vlocation, 0, sizeof(struct afs_vlocation));
 	atomic_set(&vlocation->usage, 1);
 	INIT_LIST_HEAD(&vlocation->link);
 	rwlock_init(&vlocation->lock);

fs/afs/volume.c

@@ -186,11 +186,10 @@ int afs_volume_lookup(const char *name, struct afs_cell *cell, int rwpath,
 	_debug("creating new volume record");
 
 	ret = -ENOMEM;
-	volume = kmalloc(sizeof(struct afs_volume), GFP_KERNEL);
+	volume = kzalloc(sizeof(struct afs_volume), GFP_KERNEL);
 	if (!volume)
 		goto error_up;
 
-	memset(volume, 0, sizeof(struct afs_volume));
 	atomic_set(&volume->usage, 1);
 	volume->type		= type;
 	volume->type_force	= force;

fs/autofs/inode.c

@@ -129,10 +129,9 @@ int autofs_fill_super(struct super_block *s, void *data, int silent)
 	struct autofs_sb_info *sbi;
 	int minproto, maxproto;
 
-	sbi = kmalloc(sizeof(*sbi), GFP_KERNEL);
+	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
 	if ( !sbi )
 		goto fail_unlock;
-	memset(sbi, 0, sizeof(*sbi));
 	DPRINTK(("autofs: starting up, sbi = %p\n",sbi));
 
 	s->s_fs_info = sbi;

fs/bfs/inode.c

@@ -311,11 +311,10 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent)
 	unsigned i, imap_len;
 	struct bfs_sb_info * info;
 
-	info = kmalloc(sizeof(*info), GFP_KERNEL);
+	info = kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 	s->s_fs_info = info;
-	memset(info, 0, sizeof(*info));
 
 	sb_set_blocksize(s, BFS_BSIZE);
 
@@ -338,10 +337,9 @@ static int bfs_fill_super(struct super_block *s, void *data, int silent)
 			+ BFS_ROOT_INO - 1;
 
 	imap_len = info->si_lasti/8 + 1;
-	info->si_imap = kmalloc(imap_len, GFP_KERNEL);
+	info->si_imap = kzalloc(imap_len, GFP_KERNEL);
 	if (!info->si_imap)
 		goto out;
-	memset(info->si_imap, 0, imap_len);
 	for (i=0; i<BFS_ROOT_INO; i++) 
 		set_bit(i, info->si_imap);
 

fs/configfs/file.c

@@ -274,9 +274,8 @@ static int check_perm(struct inode * inode, struct file * file)
 	/* No error? Great, allocate a buffer for the file, and store it
 	 * it in file->private_data for easy access.
 	 */
-	buffer = kmalloc(sizeof(struct configfs_buffer),GFP_KERNEL);
+	buffer = kzalloc(sizeof(struct configfs_buffer),GFP_KERNEL);
 	if (buffer) {
-		memset(buffer,0,sizeof(struct configfs_buffer));
 		init_MUTEX(&buffer->sem);
 		buffer->needs_read_fill = 1;
 		buffer->ops = ops;

fs/configfs/inode.c

@@ -76,11 +76,10 @@ int configfs_setattr(struct dentry * dentry, struct iattr * iattr)
 
 	if (!sd_iattr) {
 		/* setting attributes for the first time, allocate now */
-		sd_iattr = kmalloc(sizeof(struct iattr), GFP_KERNEL);
+		sd_iattr = kzalloc(sizeof(struct iattr), GFP_KERNEL);
 		if (!sd_iattr)
 			return -ENOMEM;
 		/* assign default attributes */
-		memset(sd_iattr, 0, sizeof(struct iattr));
 		sd_iattr->ia_mode = sd->s_mode;
 		sd_iattr->ia_uid = 0;
 		sd_iattr->ia_gid = 0;

fs/cramfs/inode.c

@@ -242,11 +242,10 @@ static int cramfs_fill_super(struct super_block *sb, void *data, int silent)
 
 	sb->s_flags |= MS_RDONLY;
 
-	sbi = kmalloc(sizeof(struct cramfs_sb_info), GFP_KERNEL);
+	sbi = kzalloc(sizeof(struct cramfs_sb_info), GFP_KERNEL);
 	if (!sbi)
 		return -ENOMEM;
 	sb->s_fs_info = sbi;
-	memset(sbi, 0, sizeof(struct cramfs_sb_info));
 
 	/* Invalidate the read buffers on mount: think disk change.. */
 	mutex_lock(&read_mutex);

fs/efs/super.c

@@ -248,11 +248,10 @@ static int efs_fill_super(struct super_block *s, void *d, int silent)
 	struct buffer_head *bh;
 	struct inode *root;
 
- 	sb = kmalloc(sizeof(struct efs_sb_info), GFP_KERNEL);
+ 	sb = kzalloc(sizeof(struct efs_sb_info), GFP_KERNEL);
 	if (!sb)
 		return -ENOMEM;
 	s->s_fs_info = sb;
-	memset(sb, 0, sizeof(struct efs_sb_info));
  
 	s->s_magic		= EFS_SUPER_MAGIC;
 	if (!sb_set_blocksize(s, EFS_BLOCKSIZE)) {

fs/ext2/super.c

@@ -655,11 +655,10 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
 	int i, j;
 	__le32 features;
 
-	sbi = kmalloc(sizeof(*sbi), GFP_KERNEL);
+	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
 	if (!sbi)
 		return -ENOMEM;
 	sb->s_fs_info = sbi;
-	memset(sbi, 0, sizeof(*sbi));
 
 	/*
 	 * See what the current blocksize for the device is, and

fs/ext2/xattr.c

@@ -521,11 +521,10 @@ bad_block:		ext2_error(sb, "ext2_xattr_set",
 		}
 	} else {
 		/* Allocate a buffer where we construct the new block. */
-		header = kmalloc(sb->s_blocksize, GFP_KERNEL);
+		header = kzalloc(sb->s_blocksize, GFP_KERNEL);
 		error = -ENOMEM;
 		if (header == NULL)
 			goto cleanup;
-		memset(header, 0, sb->s_blocksize);
 		end = (char *)header + sb->s_blocksize;
 		header->h_magic = cpu_to_le32(EXT2_XATTR_MAGIC);
 		header->h_blocks = header->h_refcount = cpu_to_le32(1);

fs/ext3/dir.c

@@ -343,10 +343,9 @@ int ext3_htree_store_dirent(struct file *dir_file, __u32 hash,
 
 	/* Create and allocate the fname structure */
 	len = sizeof(struct fname) + dirent->name_len + 1;
-	new_fn = kmalloc(len, GFP_KERNEL);
+	new_fn = kzalloc(len, GFP_KERNEL);
 	if (!new_fn)
 		return -ENOMEM;
-	memset(new_fn, 0, len);
 	new_fn->hash = hash;
 	new_fn->minor_hash = minor_hash;
 	new_fn->inode = le32_to_cpu(dirent->inode);

fs/ext3/super.c

@@ -1407,11 +1407,10 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 	int needs_recovery;
 	__le32 features;
 
-	sbi = kmalloc(sizeof(*sbi), GFP_KERNEL);
+	sbi = kzalloc(sizeof(*sbi), GFP_KERNEL);
 	if (!sbi)
 		return -ENOMEM;
 	sb->s_fs_info = sbi;
-	memset(sbi, 0, sizeof(*sbi));
 	sbi->s_mount_opt = 0;
 	sbi->s_resuid = EXT3_DEF_RESUID;
 	sbi->s_resgid = EXT3_DEF_RESGID;

fs/fat/inode.c

@@ -1168,11 +1168,10 @@ int fat_fill_super(struct super_block *sb, void *data, int silent,
 	long error;
 	char buf[50];
 
-	sbi = kmalloc(sizeof(struct msdos_sb_info), GFP_KERNEL);
+	sbi = kzalloc(sizeof(struct msdos_sb_info), GFP_KERNEL);
 	if (!sbi)
 		return -ENOMEM;
 	sb->s_fs_info = sbi;
-	memset(sbi, 0, sizeof(struct msdos_sb_info));
 
 	sb->s_flags |= MS_NODIRATIME;
 	sb->s_magic = MSDOS_SUPER_MAGIC;

fs/hfs/bnode.c

@@ -249,10 +249,9 @@ static struct hfs_bnode *__hfs_bnode_create(struct hfs_btree *tree, u32 cnid)
 	sb = tree->inode->i_sb;
 	size = sizeof(struct hfs_bnode) + tree->pages_per_bnode *
 		sizeof(struct page *);
-	node = kmalloc(size, GFP_KERNEL);
+	node = kzalloc(size, GFP_KERNEL);
 	if (!node)
 		return NULL;
-	memset(node, 0, size);
 	node->tree = tree;
 	node->this = cnid;
 	set_bit(HFS_BNODE_NEW, &node->flags);

fs/hfs/btree.c

@@ -21,10 +21,9 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id, btree_keycmp ke
 	struct page *page;
 	unsigned int size;
 
-	tree = kmalloc(sizeof(*tree), GFP_KERNEL);
+	tree = kzalloc(sizeof(*tree), GFP_KERNEL);
 	if (!tree)
 		return NULL;
-	memset(tree, 0, sizeof(*tree));
 
 	init_MUTEX(&tree->tree_lock);
 	spin_lock_init(&tree->hash_lock);

fs/hfs/super.c

@@ -356,11 +356,10 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
 	struct inode *root_inode;
 	int res;
 
-	sbi = kmalloc(sizeof(struct hfs_sb_info), GFP_KERNEL);
+	sbi = kzalloc(sizeof(struct hfs_sb_info), GFP_KERNEL);
 	if (!sbi)
 		return -ENOMEM;
 	sb->s_fs_info = sbi;
-	memset(sbi, 0, sizeof(struct hfs_sb_info));
 	INIT_HLIST_HEAD(&sbi->rsrc_inodes);
 
 	res = -EINVAL;

fs/hfsplus/bnode.c

@@ -409,10 +409,9 @@ static struct hfs_bnode *__hfs_bnode_create(struct hfs_btree *tree, u32 cnid)
 	sb = tree->inode->i_sb;
 	size = sizeof(struct hfs_bnode) + tree->pages_per_bnode *
 		sizeof(struct page *);
-	node = kmalloc(size, GFP_KERNEL);
+	node = kzalloc(size, GFP_KERNEL);
 	if (!node)
 		return NULL;
-	memset(node, 0, size);
 	node->tree = tree;
 	node->this = cnid;
 	set_bit(HFS_BNODE_NEW, &node->flags);

fs/hfsplus/btree.c

@@ -24,10 +24,9 @@ struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
 	struct page *page;
 	unsigned int size;
 
-	tree = kmalloc(sizeof(*tree), GFP_KERNEL);
+	tree = kzalloc(sizeof(*tree), GFP_KERNEL);
 	if (!tree)
 		return NULL;
-	memset(tree, 0, sizeof(*tree));
 
 	init_MUTEX(&tree->tree_lock);
 	spin_lock_init(&tree->hash_lock);