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Diffstat (limited to 'fs/libfs.c')
-rw-r--r--fs/libfs.c26
1 files changed, 18 insertions, 8 deletions
diff --git a/fs/libfs.c b/fs/libfs.c
index 275ca4749a2e..c18e9a1235b6 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -16,6 +16,8 @@
#include <asm/uaccess.h>
+#include "internal.h"
+
static inline int simple_positive(struct dentry *dentry)
{
return dentry->d_inode && !d_unhashed(dentry);
@@ -246,13 +248,11 @@ struct dentry *mount_pseudo(struct file_system_type *fs_type, char *name,
root->i_ino = 1;
root->i_mode = S_IFDIR | S_IRUSR | S_IWUSR;
root->i_atime = root->i_mtime = root->i_ctime = CURRENT_TIME;
- dentry = d_alloc(NULL, &d_name);
+ dentry = __d_alloc(s, &d_name);
if (!dentry) {
iput(root);
goto Enomem;
}
- dentry->d_sb = s;
- dentry->d_parent = dentry;
d_instantiate(dentry, root);
s->s_root = dentry;
s->s_d_op = dops;
@@ -328,8 +328,10 @@ int simple_rename(struct inode *old_dir, struct dentry *old_dentry,
if (new_dentry->d_inode) {
simple_unlink(new_dir, new_dentry);
- if (they_are_dirs)
+ if (they_are_dirs) {
+ drop_nlink(new_dentry->d_inode);
drop_nlink(old_dir);
+ }
} else if (they_are_dirs) {
drop_nlink(old_dir);
inc_nlink(new_dir);
@@ -905,21 +907,29 @@ EXPORT_SYMBOL_GPL(generic_fh_to_parent);
* filesystems which track all non-inode metadata in the buffers list
* hanging off the address_space structure.
*/
-int generic_file_fsync(struct file *file, int datasync)
+int generic_file_fsync(struct file *file, loff_t start, loff_t end,
+ int datasync)
{
struct inode *inode = file->f_mapping->host;
int err;
int ret;
+ err = filemap_write_and_wait_range(inode->i_mapping, start, end);
+ if (err)
+ return err;
+
+ mutex_lock(&inode->i_mutex);
ret = sync_mapping_buffers(inode->i_mapping);
if (!(inode->i_state & I_DIRTY))
- return ret;
+ goto out;
if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
- return ret;
+ goto out;
err = sync_inode_metadata(inode, 1);
if (ret == 0)
ret = err;
+out:
+ mutex_unlock(&inode->i_mutex);
return ret;
}
EXPORT_SYMBOL(generic_file_fsync);
@@ -956,7 +966,7 @@ EXPORT_SYMBOL(generic_check_addressable);
/*
* No-op implementation of ->fsync for in-memory filesystems.
*/
-int noop_fsync(struct file *file, int datasync)
+int noop_fsync(struct file *file, loff_t start, loff_t end, int datasync)
{
return 0;
}