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Commit 62af9b52 authored by Jan Kara's avatar Jan Kara
Browse files

quota: Convert __DQUOT_PARANOIA symbol to standard config option 



Make __DQUOT_PARANOIA define from the old days a standard config option
and turn it off by default.

This gets rid of a quota warning about writes before quota is turned on
for systems with ext4 root filesystem. Currently there's no way to legally
solve this because /etc/mtab has to be written before quota is turned on
on most systems.

Signed-off-by: default avatarJan Kara <jack@suse.cz>
parent 08261673

fs/quota/Kconfig

+8 −0
Original line number Diff line number Diff line
@@ -33,6 +33,14 @@ config PRINT_QUOTA_WARNING 
	  Note that this behavior is currently deprecated and may go away in

	  future. Please use notification via netlink socket instead.



config QUOTA_DEBUG

	bool "Additional quota sanity checks"

	depends on QUOTA

	default n

	help

	  If you say Y here, quota subsystem will perform some additional

	  sanity checks of quota internal structures. If unsure, say N.



# Generic support for tree structured quota files. Selected when needed.

config QUOTA_TREE

	 tristate

fs/quota/dquot.c

+7 −9
Original line number Diff line number Diff line
@@ -80,8 +80,6 @@ 


#include <asm/uaccess.h>



#define __DQUOT_PARANOIA



/*

 * There are three quota SMP locks. dq_list_lock protects all lists with quotas

 * and quota formats, dqstats structure containing statistics about the lists
@@ -695,7 +693,7 @@ void dqput(struct dquot *dquot) 


	if (!dquot)

		return;

#ifdef __DQUOT_PARANOIA

#ifdef CONFIG_QUOTA_DEBUG

	if (!atomic_read(&dquot->dq_count)) {

		printk("VFS: dqput: trying to free free dquot\n");

		printk("VFS: device %s, dquot of %s %d\n",
@@ -748,7 +746,7 @@ void dqput(struct dquot *dquot) 
		goto we_slept;

	}

	atomic_dec(&dquot->dq_count);

#ifdef __DQUOT_PARANOIA

#ifdef CONFIG_QUOTA_DEBUG

	/* sanity check */

	BUG_ON(!list_empty(&dquot->dq_free));

#endif
@@ -845,7 +843,7 @@ struct dquot *dqget(struct super_block *sb, unsigned int id, int type) 
		dquot = NULL;

		goto out;

	}

#ifdef __DQUOT_PARANOIA

#ifdef CONFIG_QUOTA_DEBUG

	BUG_ON(!dquot->dq_sb);	/* Has somebody invalidated entry under us? */

#endif

out:
@@ -874,7 +872,7 @@ static int dqinit_needed(struct inode *inode, int type) 
static void add_dquot_ref(struct super_block *sb, int type)

{

	struct inode *inode, *old_inode = NULL;

#ifdef __DQUOT_PARANOIA

#ifdef CONFIG_QUOTA_DEBUG

	int reserved = 0;

#endif
@@ -882,7 +880,7 @@ static void add_dquot_ref(struct super_block *sb, int type) 
	list_for_each_entry(inode, &sb->s_inodes, i_sb_list) {

		if (inode->i_state & (I_FREEING|I_CLEAR|I_WILL_FREE|I_NEW))

			continue;

#ifdef __DQUOT_PARANOIA

#ifdef CONFIG_QUOTA_DEBUG

		if (unlikely(inode_get_rsv_space(inode) > 0))

			reserved = 1;

#endif
@@ -907,7 +905,7 @@ static void add_dquot_ref(struct super_block *sb, int type) 
	spin_unlock(&inode_lock);

	iput(old_inode);



#ifdef __DQUOT_PARANOIA

#ifdef CONFIG_QUOTA_DEBUG

	if (reserved) {

		printk(KERN_WARNING "VFS (%s): Writes happened before quota"

			" was turned on thus quota information is probably "
@@ -940,7 +938,7 @@ static int remove_inode_dquot_ref(struct inode *inode, int type, 
	inode->i_dquot[type] = NULL;

	if (dquot) {

		if (dqput_blocks(dquot)) {

#ifdef __DQUOT_PARANOIA

#ifdef CONFIG_QUOTA_DEBUG

			if (atomic_read(&dquot->dq_count) != 1)

				printk(KERN_WARNING "VFS: Adding dquot with dq_count %d to dispose list.\n", atomic_read(&dquot->dq_count));

#endif