From 318ceed088497d1ca839b1172518ac4cc7096b82 Mon Sep 17 00:00:00 2001 From: Al Viro Date: Sun, 12 Feb 2012 22:08:01 -0500 Subject: [PATCH] tidy up after d_make_root() conversion Signed-off-by: Al Viro --- drivers/misc/ibmasm/ibmasmfs.c | 14 ++++++-------- drivers/oprofile/oprofilefs.c | 9 +++------ drivers/usb/core/inode.c | 6 ++---- fs/pstore/inode.c | 24 +++++++----------------- fs/ramfs/inode.c | 20 ++++++-------------- mm/shmem.c | 6 ++---- 6 files changed, 26 insertions(+), 53 deletions(-) diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c index 15f24f36220..1c034b80d40 100644 --- a/drivers/misc/ibmasm/ibmasmfs.c +++ b/drivers/misc/ibmasm/ibmasmfs.c @@ -87,7 +87,7 @@ static LIST_HEAD(service_processors); static struct inode *ibmasmfs_make_inode(struct super_block *sb, int mode); -static void ibmasmfs_create_files (struct super_block *sb, struct dentry *root); +static void ibmasmfs_create_files (struct super_block *sb); static int ibmasmfs_fill_super (struct super_block *sb, void *data, int silent); @@ -114,7 +114,6 @@ static struct file_system_type ibmasmfs_type = { static int ibmasmfs_fill_super (struct super_block *sb, void *data, int silent) { struct inode *root; - struct dentry *root_dentry; sb->s_blocksize = PAGE_CACHE_SIZE; sb->s_blocksize_bits = PAGE_CACHE_SHIFT; @@ -129,12 +128,11 @@ static int ibmasmfs_fill_super (struct super_block *sb, void *data, int silent) root->i_op = &simple_dir_inode_operations; root->i_fop = ibmasmfs_dir_ops; - root_dentry = d_make_root(root); - if (!root_dentry) + sb->s_root = d_make_root(root); + if (!sb->s_root) return -ENOMEM; - sb->s_root = root_dentry; - ibmasmfs_create_files(sb, root_dentry); + ibmasmfs_create_files(sb); return 0; } @@ -610,7 +608,7 @@ static const struct file_operations remote_settings_fops = { }; -static void ibmasmfs_create_files (struct super_block *sb, struct dentry *root) +static void ibmasmfs_create_files (struct super_block *sb) { struct list_head *entry; struct service_processor *sp; @@ -619,7 +617,7 @@ static void ibmasmfs_create_files (struct super_block *sb, struct dentry *root) struct dentry *dir; struct dentry *remote_dir; sp = list_entry(entry, struct service_processor, node); - dir = ibmasmfs_create_dir(sb, root, sp->dirname); + dir = ibmasmfs_create_dir(sb, sb->s_root, sp->dirname); if (!dir) continue; diff --git a/drivers/oprofile/oprofilefs.c b/drivers/oprofile/oprofilefs.c index 277bb70b8d7..ee8fd037bb5 100644 --- a/drivers/oprofile/oprofilefs.c +++ b/drivers/oprofile/oprofilefs.c @@ -238,7 +238,6 @@ struct dentry *oprofilefs_mkdir(struct super_block *sb, static int oprofilefs_fill_super(struct super_block *sb, void *data, int silent) { struct inode *root_inode; - struct dentry *root_dentry; sb->s_blocksize = PAGE_CACHE_SIZE; sb->s_blocksize_bits = PAGE_CACHE_SHIFT; @@ -251,13 +250,11 @@ static int oprofilefs_fill_super(struct super_block *sb, void *data, int silent) return -ENOMEM; root_inode->i_op = &simple_dir_inode_operations; root_inode->i_fop = &simple_dir_operations; - root_dentry = d_make_root(root_inode); - if (!root_dentry) + sb->s_root = d_make_root(root_inode); + if (!sb->s_root) return -ENOMEM; - sb->s_root = root_dentry; - - oprofile_create_files(sb, root_dentry); + oprofile_create_files(sb, sb->s_root); // FIXME: verify kill_litter_super removes our dentries return 0; diff --git a/drivers/usb/core/inode.c b/drivers/usb/core/inode.c index bdaef8e3602..06c175aee6a 100644 --- a/drivers/usb/core/inode.c +++ b/drivers/usb/core/inode.c @@ -454,7 +454,6 @@ static const struct super_operations usbfs_ops = { static int usbfs_fill_super(struct super_block *sb, void *data, int silent) { struct inode *inode; - struct dentry *root; sb->s_blocksize = PAGE_CACHE_SIZE; sb->s_blocksize_bits = PAGE_CACHE_SHIFT; @@ -462,12 +461,11 @@ static int usbfs_fill_super(struct super_block *sb, void *data, int silent) sb->s_op = &usbfs_ops; sb->s_time_gran = 1; inode = usbfs_get_inode(sb, S_IFDIR | 0755, 0); - root = d_make_root(inode); - if (!root) { + sb->s_root = d_make_root(inode); + if (!sb->s_root) { dbg("%s: could not get root dentry!",__func__); return -ENOMEM; } - sb->s_root = root; return 0; } diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c index ec7d1fb6f35..f37c32b9452 100644 --- a/fs/pstore/inode.c +++ b/fs/pstore/inode.c @@ -278,9 +278,7 @@ fail: int pstore_fill_super(struct super_block *sb, void *data, int silent) { - struct inode *inode = NULL; - struct dentry *root; - int err; + struct inode *inode; save_mount_options(sb, data); @@ -296,25 +294,17 @@ int pstore_fill_super(struct super_block *sb, void *data, int silent) parse_options(data); inode = pstore_get_inode(sb, NULL, S_IFDIR | 0755, 0); - if (!inode) { - err = -ENOMEM; - goto fail; - } - /* override ramfs "dir" options so we catch unlink(2) */ - inode->i_op = &pstore_dir_inode_operations; - - root = d_make_root(inode); - sb->s_root = root; - if (!root) { - err = -ENOMEM; - goto fail; + if (inode) { + /* override ramfs "dir" options so we catch unlink(2) */ + inode->i_op = &pstore_dir_inode_operations; } + sb->s_root = d_make_root(inode); + if (!sb->s_root) + return -ENOMEM; pstore_get_records(0); return 0; -fail: - return err; } static struct dentry *pstore_mount(struct file_system_type *fs_type, diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c index b6612d2ed71..a1fdabe21de 100644 --- a/fs/ramfs/inode.c +++ b/fs/ramfs/inode.c @@ -209,21 +209,19 @@ static int ramfs_parse_options(char *data, struct ramfs_mount_opts *opts) int ramfs_fill_super(struct super_block *sb, void *data, int silent) { struct ramfs_fs_info *fsi; - struct inode *inode = NULL; + struct inode *inode; int err; save_mount_options(sb, data); fsi = kzalloc(sizeof(struct ramfs_fs_info), GFP_KERNEL); sb->s_fs_info = fsi; - if (!fsi) { - err = -ENOMEM; - goto fail; - } + if (!fsi) + return -ENOMEM; err = ramfs_parse_options(data, &fsi->mount_opts); if (err) - goto fail; + return err; sb->s_maxbytes = MAX_LFS_FILESIZE; sb->s_blocksize = PAGE_CACHE_SIZE; @@ -234,16 +232,10 @@ int ramfs_fill_super(struct super_block *sb, void *data, int silent) inode = ramfs_get_inode(sb, NULL, S_IFDIR | fsi->mount_opts.mode, 0); sb->s_root = d_make_root(inode); - if (!sb->s_root) { - err = -ENOMEM; - goto fail; - } + if (!sb->s_root) + return -ENOMEM; return 0; -fail: - kfree(fsi); - sb->s_fs_info = NULL; - return err; } struct dentry *ramfs_mount(struct file_system_type *fs_type, diff --git a/mm/shmem.c b/mm/shmem.c index 154243f0a27..9bc4a235394 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -2175,7 +2175,6 @@ static void shmem_put_super(struct super_block *sb) int shmem_fill_super(struct super_block *sb, void *data, int silent) { struct inode *inode; - struct dentry *root; struct shmem_sb_info *sbinfo; int err = -ENOMEM; @@ -2232,10 +2231,9 @@ int shmem_fill_super(struct super_block *sb, void *data, int silent) goto failed; inode->i_uid = sbinfo->uid; inode->i_gid = sbinfo->gid; - root = d_make_root(inode); - if (!root) + sb->s_root = d_make_root(inode); + if (!sb->s_root) goto failed; - sb->s_root = root; return 0; failed: -- 2.46.0