diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2007-08-20 16:36:29 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2007-10-13 01:51:07 +0400 |
| commit | 372e88bd1922228e0a55228f6dc8e311d1696fa0 (patch) | |
| tree | 3f078e13b55a4fc20fe0df5c7e85045554e536bf /fs/sysfs/inode.c | |
| parent | 253280267a7f1ced0c434fb24b7bef92d7d22628 (diff) | |
| download | linux-372e88bd1922228e0a55228f6dc8e311d1696fa0.tar.xz | |
sysfs: Move all of inode initialization into sysfs_init_inode
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'fs/sysfs/inode.c')
| -rw-r--r-- | fs/sysfs/inode.c | 48 |
1 files changed, 45 insertions, 3 deletions
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c index e22db6cd4df7..200e1bf6f932 100644 --- a/fs/sysfs/inode.c +++ b/fs/sysfs/inode.c @@ -122,8 +122,22 @@ static inline void set_inode_attr(struct inode * inode, struct iattr * iattr) */ static struct lock_class_key sysfs_inode_imutex_key; +static int sysfs_count_nlink(struct sysfs_dirent *sd) +{ + struct sysfs_dirent *child; + int nr = 0; + + for (child = sd->s_children; child; child = child->s_sibling) + if (sysfs_type(child) == SYSFS_DIR) + nr++; + + return nr + 2; +} + static void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode) { + struct bin_attribute *bin_attr; + inode->i_blocks = 0; inode->i_mapping->a_ops = &sysfs_aops; inode->i_mapping->backing_dev_info = &sysfs_backing_dev_info; @@ -139,6 +153,37 @@ static void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode) set_inode_attr(inode, sd->s_iattr); } else set_default_inode_attr(inode, sd->s_mode); + + + /* initialize inode according to type */ + switch (sysfs_type(sd)) { + case SYSFS_ROOT: + inode->i_op = &sysfs_dir_inode_operations; + inode->i_fop = &sysfs_dir_operations; + inc_nlink(inode); /* directory, account for "." */ + break; + case SYSFS_DIR: + inode->i_op = &sysfs_dir_inode_operations; + inode->i_fop = &sysfs_dir_operations; + inode->i_nlink = sysfs_count_nlink(sd); + break; + case SYSFS_KOBJ_ATTR: + inode->i_size = PAGE_SIZE; + inode->i_fop = &sysfs_file_operations; + break; + case SYSFS_KOBJ_BIN_ATTR: + bin_attr = sd->s_elem.bin_attr.bin_attr; + inode->i_size = bin_attr->size; + inode->i_fop = &bin_fops; + break; + case SYSFS_KOBJ_LINK: + inode->i_op = &sysfs_symlink_inode_operations; + break; + default: + BUG(); + } + + unlock_new_inode(inode); } /** @@ -180,9 +225,6 @@ void sysfs_instantiate(struct dentry *dentry, struct inode *inode) { BUG_ON(!dentry || dentry->d_inode); - if (inode->i_state & I_NEW) - unlock_new_inode(inode); - d_instantiate(dentry, inode); } |