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Subject[RFC 10/11] split out libfs/inode.c from libfs.c
Consolidate all inode manipulation code in libfs in a single
source file.

Signed-off-by: Arnd Bergman <arnd@arndb.de>

Index: linux-2.6/fs/libfs.c
===================================================================
--- linux-2.6.orig/fs/libfs.c
+++ linux-2.6/fs/libfs.c
@@ -12,78 +12,6 @@

#include <asm/uaccess.h>

-int simple_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
-{
- struct inode *inode = old_dentry->d_inode;
-
- inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
- inc_nlink(inode);
- atomic_inc(&inode->i_count);
- dget(dentry);
- d_instantiate(dentry, inode);
- return 0;
-}
-
-int simple_empty(struct dentry *dentry)
-{
- struct dentry *child;
- int ret = 0;
-
- spin_lock(&dcache_lock);
- list_for_each_entry(child, &dentry->d_subdirs, d_u.d_child)
- if (simple_positive(child))
- goto out;
- ret = 1;
-out:
- spin_unlock(&dcache_lock);
- return ret;
-}
-
-int simple_unlink(struct inode *dir, struct dentry *dentry)
-{
- struct inode *inode = dentry->d_inode;
-
- inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
- drop_nlink(inode);
- dput(dentry);
- return 0;
-}
-
-int simple_rmdir(struct inode *dir, struct dentry *dentry)
-{
- if (!simple_empty(dentry))
- return -ENOTEMPTY;
-
- drop_nlink(dentry->d_inode);
- simple_unlink(dir, dentry);
- drop_nlink(dir);
- return 0;
-}
-
-int simple_rename(struct inode *old_dir, struct dentry *old_dentry,
- struct inode *new_dir, struct dentry *new_dentry)
-{
- struct inode *inode = old_dentry->d_inode;
- int they_are_dirs = S_ISDIR(old_dentry->d_inode->i_mode);
-
- if (!simple_empty(new_dentry))
- return -ENOTEMPTY;
-
- if (new_dentry->d_inode) {
- simple_unlink(new_dir, new_dentry);
- if (they_are_dirs)
- drop_nlink(old_dir);
- } else if (they_are_dirs) {
- drop_nlink(old_dir);
- inc_nlink(new_dir);
- }
-
- old_dir->i_ctime = old_dir->i_mtime = new_dir->i_ctime =
- new_dir->i_mtime = inode->i_ctime = CURRENT_TIME;
-
- return 0;
-}
-
int simple_readpage(struct file *file, struct page *page)
{
clear_highpage(page);
@@ -183,11 +111,6 @@ ssize_t simple_read_from_buffer(void __u

EXPORT_SYMBOL(simple_write_begin);
EXPORT_SYMBOL(simple_write_end);
-EXPORT_SYMBOL(simple_empty);
-EXPORT_SYMBOL(simple_link);
EXPORT_SYMBOL(simple_prepare_write);
EXPORT_SYMBOL(simple_readpage);
-EXPORT_SYMBOL(simple_rename);
-EXPORT_SYMBOL(simple_rmdir);
-EXPORT_SYMBOL(simple_unlink);
EXPORT_SYMBOL(simple_read_from_buffer);
Index: linux-2.6/fs/libfs/inode.c
===================================================================
--- linux-2.6.orig/fs/libfs/inode.c
+++ linux-2.6/fs/libfs/inode.c
@@ -417,4 +417,79 @@ exit:
}
EXPORT_SYMBOL_GPL(simple_rename_named);

+int simple_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
+{
+ struct inode *inode = old_dentry->d_inode;

+ inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+ inc_nlink(inode);
+ atomic_inc(&inode->i_count);
+ dget(dentry);
+ d_instantiate(dentry, inode);
+ return 0;
+}
+EXPORT_SYMBOL(simple_link);
+
+int simple_empty(struct dentry *dentry)
+{
+ struct dentry *child;
+ int ret = 0;
+
+ spin_lock(&dcache_lock);
+ list_for_each_entry(child, &dentry->d_subdirs, d_u.d_child)
+ if (simple_positive(child))
+ goto out;
+ ret = 1;
+out:
+ spin_unlock(&dcache_lock);
+ return ret;
+}
+EXPORT_SYMBOL(simple_empty);
+
+int simple_unlink(struct inode *dir, struct dentry *dentry)
+{
+ struct inode *inode = dentry->d_inode;
+
+ inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME;
+ drop_nlink(inode);
+ dput(dentry);
+ return 0;
+}
+EXPORT_SYMBOL(simple_unlink);
+
+int simple_rmdir(struct inode *dir, struct dentry *dentry)
+{
+ if (!simple_empty(dentry))
+ return -ENOTEMPTY;
+
+ drop_nlink(dentry->d_inode);
+ simple_unlink(dir, dentry);
+ drop_nlink(dir);
+ return 0;
+}
+EXPORT_SYMBOL(simple_rmdir);
+
+int simple_rename(struct inode *old_dir, struct dentry *old_dentry,
+ struct inode *new_dir, struct dentry *new_dentry)
+{
+ struct inode *inode = old_dentry->d_inode;
+ int they_are_dirs = S_ISDIR(old_dentry->d_inode->i_mode);
+
+ if (!simple_empty(new_dentry))
+ return -ENOTEMPTY;
+
+ if (new_dentry->d_inode) {
+ simple_unlink(new_dir, new_dentry);
+ if (they_are_dirs)
+ drop_nlink(old_dir);
+ } else if (they_are_dirs) {
+ drop_nlink(old_dir);
+ inc_nlink(new_dir);
+ }
+
+ old_dir->i_ctime = old_dir->i_mtime = new_dir->i_ctime =
+ new_dir->i_mtime = inode->i_ctime = CURRENT_TIME;
+
+ return 0;
+}
+EXPORT_SYMBOL(simple_rename);
--



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