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Commit 292c5ee8 authored by Al Viro's avatar Al Viro
Browse files

autofs4: keep symlink body in inode->i_private 



gets rid of all ->free()/->u.symlink machinery in autofs; we simply
keep symlink bodies in inode->i_private and free them in ->evict_inode().

Acked-by: default avatarIan Kent <raven@themaw.net>
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent c0bcc9d5

fs/autofs4/autofs_i.h

+0 −5
Original line number Diff line number Diff line
@@ -91,11 +91,6 @@ struct autofs_info { 


	mode_t	mode;

	size_t	size;



	void (*free)(struct autofs_info *);

	union {

		const char *symlink;

	} u;

};



#define AUTOFS_INF_EXPIRING	(1<<0) /* dentry is in the process of expiring */

fs/autofs4/inode.c

+7 −20
Original line number Diff line number Diff line
@@ -22,14 +22,6 @@ 
#include "autofs_i.h"

#include <linux/module.h>



static void ino_lnkfree(struct autofs_info *ino)

{

	if (ino->u.symlink) {

		kfree(ino->u.symlink);

		ino->u.symlink = NULL;

	}

}



struct autofs_info *autofs4_init_ino(struct autofs_info *ino,

				     struct autofs_sb_info *sbi, mode_t mode)

{
@@ -60,16 +52,6 @@ struct autofs_info *autofs4_init_ino(struct autofs_info *ino, 


	ino->sbi = sbi;



	if (reinit && ino->free)

		(ino->free)(ino);



	memset(&ino->u, 0, sizeof(ino->u));



	ino->free = NULL;



	if (S_ISLNK(mode))

		ino->free = ino_lnkfree;



	return ino;

}
@@ -79,8 +61,6 @@ void autofs4_free_ino(struct autofs_info *ino) 
		ino->dentry->d_fsdata = NULL;

		ino->dentry = NULL;

	}

	if (ino->free)

		(ino->free)(ino);

	kfree(ino);

}
@@ -136,9 +116,16 @@ static int autofs4_show_options(struct seq_file *m, struct vfsmount *mnt) 
	return 0;

}



static void autofs4_evict_inode(struct inode *inode)

{

	end_writeback(inode);

	kfree(inode->i_private);

}



static const struct super_operations autofs4_sops = {

	.statfs		= simple_statfs,

	.show_options	= autofs4_show_options,

	.evict_inode	= autofs4_evict_inode,

};



enum {Opt_err, Opt_fd, Opt_uid, Opt_gid, Opt_pgrp, Opt_minproto, Opt_maxproto,

fs/autofs4/root.c

+1 −1
Original line number Diff line number Diff line
@@ -561,6 +561,7 @@ static int autofs4_dir_symlink(struct inode *dir, 
			kfree(ino);

		return -ENOMEM;

	}

	inode->i_private = cp;

	d_add(dentry, inode);



	dentry->d_fsdata = ino;
@@ -570,7 +571,6 @@ static int autofs4_dir_symlink(struct inode *dir, 
	if (p_ino && dentry->d_parent != dentry)

		atomic_inc(&p_ino->count);



	ino->u.symlink = cp;

	dir->i_mtime = CURRENT_TIME;



	return 0;

fs/autofs4/symlink.c

+1 −2
Original line number Diff line number Diff line
@@ -14,8 +14,7 @@ 


static void *autofs4_follow_link(struct dentry *dentry, struct nameidata *nd)

{

	struct autofs_info *ino = autofs4_dentry_ino(dentry);

	nd_set_link(nd, (char *)ino->u.symlink);

	nd_set_link(nd, dentry->d_inode->i_private);

	return NULL;

}