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Drop explicit cast sb_bread() return value to buffer_head

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Since sb_bread() already have such a return value.
This commit is contained in:
Azat Khuzhin 2013-09-16 02:31:13 +04:00
parent 9aee1ce302
commit 3cae84d822
1 changed files with 10 additions and 16 deletions
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26
simple.c
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@ -34,8 +34,7 @@ void simplefs_sb_sync(struct super_block *vsb)
struct buffer_head *bh; struct buffer_head *bh;
struct simplefs_super_block *sb = SIMPLEFS_SB(vsb); struct simplefs_super_block *sb = SIMPLEFS_SB(vsb);
bh = (struct buffer_head *)sb_bread(vsb, bh = sb_bread(vsb, SIMPLEFS_SUPERBLOCK_BLOCK_NUMBER);
SIMPLEFS_SUPERBLOCK_BLOCK_NUMBER);
bh->b_data = (char *)sb; bh->b_data = (char *)sb;
mark_buffer_dirty(bh); mark_buffer_dirty(bh);
sync_dirty_buffer(bh); sync_dirty_buffer(bh);
@ -54,8 +53,7 @@ void simplefs_inode_add(struct super_block *vsb, struct simplefs_inode *inode)
return; return;
} }
bh = (struct buffer_head *)sb_bread(vsb, bh = sb_bread(vsb, SIMPLEFS_INODESTORE_BLOCK_NUMBER);
SIMPLEFS_INODESTORE_BLOCK_NUMBER);
inode_iterator = (struct simplefs_inode *)bh->b_data; inode_iterator = (struct simplefs_inode *)bh->b_data;
@ -181,7 +179,7 @@ static int simplefs_readdir(struct file *filp, void *dirent, filldir_t filldir)
return -ENOTDIR; return -ENOTDIR;
} }
bh = (struct buffer_head *)sb_bread(sb, sfs_inode->data_block_number); bh = sb_bread(sb, sfs_inode->data_block_number);
record = (struct simplefs_dir_record *)bh->b_data; record = (struct simplefs_dir_record *)bh->b_data;
for (i = 0; i < sfs_inode->dir_children_count; i++) { for (i = 0; i < sfs_inode->dir_children_count; i++) {
@ -216,8 +214,7 @@ struct simplefs_inode *simplefs_get_inode(struct super_block *sb,
/* The inode store can be read once and kept in memory permanently while mounting. /* The inode store can be read once and kept in memory permanently while mounting.
* But such a model will not be scalable in a filesystem with * But such a model will not be scalable in a filesystem with
* millions or billions of files (inodes) */ * millions or billions of files (inodes) */
bh = (struct buffer_head *)sb_bread(sb, bh = sb_bread(sb, SIMPLEFS_INODESTORE_BLOCK_NUMBER);
SIMPLEFS_INODESTORE_BLOCK_NUMBER);
sfs_inode = (struct simplefs_inode *)bh->b_data; sfs_inode = (struct simplefs_inode *)bh->b_data;
#if 0 #if 0
@ -266,7 +263,7 @@ ssize_t simplefs_read(struct file * filp, char __user * buf, size_t len,
return 0; return 0;
} }
bh = (struct buffer_head *)sb_bread(filp->f_path.dentry->d_inode->i_sb, bh = sb_bread(filp->f_path.dentry->d_inode->i_sb,
inode->data_block_number); inode->data_block_number);
if (!bh) { if (!bh) {
@ -319,7 +316,7 @@ ssize_t simplefs_write(struct file * filp, const char __user * buf, size_t len,
return -ENOSPC; return -ENOSPC;
} }
bh = (struct buffer_head *)sb_bread(filp->f_path.dentry->d_inode->i_sb, bh = sb_bread(filp->f_path.dentry->d_inode->i_sb,
sfs_inode->data_block_number); sfs_inode->data_block_number);
if (!bh) { if (!bh) {
@ -357,8 +354,7 @@ ssize_t simplefs_write(struct file * filp, const char __user * buf, size_t len,
return -EINTR; return -EINTR;
} }
/* Save the modified inode */ /* Save the modified inode */
bh = (struct buffer_head *)sb_bread(sb, bh = sb_bread(sb, SIMPLEFS_INODESTORE_BLOCK_NUMBER);
SIMPLEFS_INODESTORE_BLOCK_NUMBER);
sfs_inode->file_size = *ppos; sfs_inode->file_size = *ppos;
@ -546,8 +542,7 @@ static int simplefs_create_fs_object(struct inode *dir, struct dentry *dentry,
return -EINTR; return -EINTR;
} }
bh = (struct buffer_head *)sb_bread(sb, bh = sb_bread(sb, SIMPLEFS_INODESTORE_BLOCK_NUMBER);
SIMPLEFS_INODESTORE_BLOCK_NUMBER);
inode_iterator = (struct simplefs_inode *)bh->b_data; inode_iterator = (struct simplefs_inode *)bh->b_data;
@ -615,7 +610,7 @@ struct dentry *simplefs_lookup(struct inode *parent_inode,
struct simplefs_dir_record *record; struct simplefs_dir_record *record;
int i; int i;
bh = (struct buffer_head *)sb_bread(sb, parent->data_block_number); bh = sb_bread(sb, parent->data_block_number);
record = (struct simplefs_dir_record *)bh->b_data; record = (struct simplefs_dir_record *)bh->b_data;
for (i = 0; i < parent->dir_children_count; i++) { for (i = 0; i < parent->dir_children_count; i++) {
if (!strcmp(record->filename, child_dentry->d_name.name)) { if (!strcmp(record->filename, child_dentry->d_name.name)) {
@ -674,8 +669,7 @@ int simplefs_fill_super(struct super_block *sb, void *data, int silent)
struct simplefs_super_block *sb_disk; struct simplefs_super_block *sb_disk;
int ret = -EPERM; int ret = -EPERM;
bh = (struct buffer_head *)sb_bread(sb, bh = sb_bread(sb, SIMPLEFS_SUPERBLOCK_BLOCK_NUMBER);
SIMPLEFS_SUPERBLOCK_BLOCK_NUMBER);
sb_disk = (struct simplefs_super_block *)bh->b_data; sb_disk = (struct simplefs_super_block *)bh->b_data;
/* FIXME: bh->b_data is probably leaking */ /* FIXME: bh->b_data is probably leaking */