Hi Linus,
a) in fget, file=NULL is not needed
b) removing _fput and __fput makes fput() code a lot more readable because
on their own _fput/__fput are meaningless and not used at all.
Please consider this patch. Fully tested under 2.4.0-test9-pre4.
Regards,
Tigran
--- linux/fs/file_table.c Fri Jul 28 09:58:59 2000
+++ work/fs/file_table.c Tue Sep 19 11:29:13 2000
@@ -98,48 +98,35 @@
return 0;
}
-/*
- * Called when retiring the last use of a file pointer.
- */
-static void __fput(struct file *filp)
+void fput(struct file * file)
{
- struct dentry * dentry = filp->f_dentry;
- struct vfsmount * mnt = filp->f_vfsmnt;
+ struct dentry * dentry = file->f_dentry;
+ struct vfsmount * mnt = file->f_vfsmnt;
struct inode * inode = dentry->d_inode;
- if (filp->f_op && filp->f_op->release)
- filp->f_op->release(inode, filp);
- fops_put(filp->f_op);
- filp->f_dentry = NULL;
- filp->f_vfsmnt = NULL;
- if (filp->f_mode & FMODE_WRITE)
- put_write_access(inode);
- dput(dentry);
- if (mnt)
- mntput(mnt);
-}
-
-static void _fput(struct file *file)
-{
- locks_remove_flock(file);
- __fput(file);
-
- file_list_lock();
- list_del(&file->f_list);
- list_add(&file->f_list, &free_list);
- files_stat.nr_free_files++;
- file_list_unlock();
-}
-
-void fput(struct file * file)
-{
- if (atomic_dec_and_test(&file->f_count))
- _fput(file);
+ if (atomic_dec_and_test(&file->f_count)) {
+ locks_remove_flock(file);
+ if (file->f_op && file->f_op->release)
+ file->f_op->release(inode, file);
+ fops_put(file->f_op);
+ file->f_dentry = NULL;
+ file->f_vfsmnt = NULL;
+ if (file->f_mode & FMODE_WRITE)
+ put_write_access(inode);
+ dput(dentry);
+ if (mnt)
+ mntput(mnt);
+ file_list_lock();
+ list_del(&file->f_list);
+ list_add(&file->f_list, &free_list);
+ files_stat.nr_free_files++;
+ file_list_unlock();
+ }
}
struct file * fget(unsigned int fd)
{
- struct file * file = NULL;
+ struct file * file;
struct files_struct *files = current->files;
read_lock(&files->file_lock);
-
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