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Date: Fri, 25 Apr 2008 18:18:57 -0400
From: Erez Zadok <ezk@...sunysb.edu>
To: akpm@...ux-foundation.org
Cc: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
viro@....linux.org.uk, hch@...radead.org,
Erez Zadok <ezk@...sunysb.edu>
Subject: [PATCH 01/12] Unionfs: minor code cleanups
Signed-off-by: Erez Zadok <ezk@...sunysb.edu>
---
fs/unionfs/commonfops.c | 2 --
fs/unionfs/file.c | 17 +++++------------
fs/unionfs/inode.c | 39 +++++++++++++++++----------------------
3 files changed, 22 insertions(+), 36 deletions(-)
diff --git a/fs/unionfs/commonfops.c b/fs/unionfs/commonfops.c
index 50f4eda..0fc7963 100644
--- a/fs/unionfs/commonfops.c
+++ b/fs/unionfs/commonfops.c
@@ -250,7 +250,6 @@ static int do_delayed_copyup(struct file *file)
BUG_ON(!S_ISREG(dentry->d_inode->i_mode));
unionfs_check_file(file);
- unionfs_check_dentry(dentry);
for (bindex = bstart - 1; bindex >= 0; bindex--) {
if (!d_deleted(dentry))
err = copyup_file(parent_inode, file, bstart,
@@ -292,7 +291,6 @@ static int do_delayed_copyup(struct file *file)
out:
unionfs_check_file(file);
- unionfs_check_dentry(dentry);
return err;
}
diff --git a/fs/unionfs/file.c b/fs/unionfs/file.c
index 0a39387..1fe4c30 100644
--- a/fs/unionfs/file.c
+++ b/fs/unionfs/file.c
@@ -35,14 +35,14 @@ static ssize_t unionfs_read(struct file *file, char __user *buf,
err = vfs_read(lower_file, buf, count, ppos);
/* update our inode atime upon a successful lower read */
if (err >= 0) {
- fsstack_copy_attr_atime(file->f_path.dentry->d_inode,
+ fsstack_copy_attr_atime(dentry->d_inode,
lower_file->f_path.dentry->d_inode);
unionfs_check_file(file);
}
out:
unionfs_unlock_dentry(dentry);
- unionfs_read_unlock(file->f_path.dentry->d_sb);
+ unionfs_read_unlock(dentry->d_sb);
return err;
}
@@ -63,32 +63,25 @@ static ssize_t unionfs_write(struct file *file, const char __user *buf,
err = vfs_write(lower_file, buf, count, ppos);
/* update our inode times+sizes upon a successful lower write */
if (err >= 0) {
- fsstack_copy_inode_size(file->f_path.dentry->d_inode,
+ fsstack_copy_inode_size(dentry->d_inode,
lower_file->f_path.dentry->d_inode);
- fsstack_copy_attr_times(file->f_path.dentry->d_inode,
+ fsstack_copy_attr_times(dentry->d_inode,
lower_file->f_path.dentry->d_inode);
unionfs_check_file(file);
}
out:
unionfs_unlock_dentry(dentry);
- unionfs_read_unlock(file->f_path.dentry->d_sb);
+ unionfs_read_unlock(dentry->d_sb);
return err;
}
-
static int unionfs_file_readdir(struct file *file, void *dirent,
filldir_t filldir)
{
return -ENOTDIR;
}
-int unionfs_readpage_dummy(struct file *file, struct page *page)
-{
- BUG();
- return -EINVAL;
-}
-
static int unionfs_mmap(struct file *file, struct vm_area_struct *vma)
{
int err = 0;
diff --git a/fs/unionfs/inode.c b/fs/unionfs/inode.c
index 0dc07ec..1446124 100644
--- a/fs/unionfs/inode.c
+++ b/fs/unionfs/inode.c
@@ -396,28 +396,23 @@ docopyup:
bindex, old_dentry->d_name.name,
old_dentry->d_name.len, NULL,
i_size_read(old_dentry->d_inode));
- if (!err) {
- lower_new_dentry =
- create_parents(dir, new_dentry,
- new_dentry->d_name.name,
- bindex);
- lower_old_dentry =
- unionfs_lower_dentry(old_dentry);
- lower_dir_dentry =
- lock_parent(lower_new_dentry);
- /*
- * see
- * Documentation/filesystems/unionfs/issues.txt
- */
- lockdep_off();
- /* do vfs_link */
- err = vfs_link(lower_old_dentry,
- lower_dir_dentry->d_inode,
- lower_new_dentry);
- lockdep_on();
- unlock_dir(lower_dir_dentry);
- goto check_link;
- }
+ if (err)
+ continue;
+ lower_new_dentry =
+ create_parents(dir, new_dentry,
+ new_dentry->d_name.name,
+ bindex);
+ lower_old_dentry = unionfs_lower_dentry(old_dentry);
+ lower_dir_dentry = lock_parent(lower_new_dentry);
+ /* see Documentation/filesystems/unionfs/issues.txt */
+ lockdep_off();
+ /* do vfs_link */
+ err = vfs_link(lower_old_dentry,
+ lower_dir_dentry->d_inode,
+ lower_new_dentry);
+ lockdep_on();
+ unlock_dir(lower_dir_dentry);
+ goto check_link;
}
goto out;
}
--
1.5.2.2
--
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