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[PATCH] fix up new filp allocators

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Some new uses of get_empty_filp() have crept in; switched
to alloc_file() to make sure that pieces of initialization
won't be missing.

We really need to kill get_empty_filp().

[AV] fixed dentry leak on failure exit in anon_inode_getfd()

Cc: Erez Zadok <ezk@cs.sunysb.edu>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "J Bruce Fields" <bfields@fieldses.org>
Acked-by: Al Viro <viro@ZenIV.linux.org.uk>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dave Hansen <haveblue@us.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Dave Hansen
2008-02-15 14:37:26 -08:00
committed by Al Viro
parent 322ee5b36e
commit 430e285e08
3 changed files with 23 additions and 20 deletions
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19
fs/pipe.c
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@ -957,13 +957,10 @@ struct file *create_write_pipe(void)
struct dentry *dentry;
struct qstr name = { .name = "" };
f = get_empty_filp();
if (!f)
return ERR_PTR(-ENFILE);
err = -ENFILE;
inode = get_pipe_inode();
if (!inode)
goto err_file;
goto err;
err = -ENOMEM;
dentry = d_alloc(pipe_mnt->mnt_sb->s_root, &name);
@ -978,22 +975,24 @@ struct file *create_write_pipe(void)
*/
dentry->d_flags &= ~DCACHE_UNHASHED;
d_instantiate(dentry, inode);
f->f_path.mnt = mntget(pipe_mnt);
f->f_path.dentry = dentry;
err = -ENFILE;
f = alloc_file(pipe_mnt, dentry, FMODE_WRITE, &write_pipe_fops);
if (!f)
goto err_dentry;
f->f_mapping = inode->i_mapping;
f->f_flags = O_WRONLY;
f->f_op = &write_pipe_fops;
f->f_mode = FMODE_WRITE;
f->f_version = 0;
return f;
err_dentry:
dput(dentry);
err_inode:
free_pipe_info(inode);
iput(inode);
err_file:
put_filp(f);
err:
return ERR_PTR(err);
}