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Commit 6f28e087 authored by Jan Kara's avatar Jan Kara Committed by Linus Torvalds
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quota: ext4: make ext4 handle quotaon on remount 



Update ext4 to handle quotaon on remount RW.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: default avatarJan Kara <jack@suse.cz>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 2fd83a4f

fs/ext4/super.c

+8 −7
Original line number Diff line number Diff line
@@ -813,7 +813,8 @@ static int ext4_acquire_dquot(struct dquot *dquot); 
static int ext4_release_dquot(struct dquot *dquot);

static int ext4_mark_dquot_dirty(struct dquot *dquot);

static int ext4_write_info(struct super_block *sb, int type);

static int ext4_quota_on(struct super_block *sb, int type, int format_id, char *path);

static int ext4_quota_on(struct super_block *sb, int type, int format_id,

				char *path, int remount);

static int ext4_quota_on_mount(struct super_block *sb, int type);

static ssize_t ext4_quota_read(struct super_block *sb, int type, char *data,

			       size_t len, loff_t off);
@@ -1632,7 +1633,7 @@ static void ext4_orphan_cleanup (struct super_block * sb, 
	/* Turn quotas off */

	for (i = 0; i < MAXQUOTAS; i++) {

		if (sb_dqopt(sb)->files[i])

			vfs_quota_off(sb, i);

			vfs_quota_off(sb, i, 0);

	}

#endif

	sb->s_flags = s_flags; /* Restore MS_RDONLY status */
@@ -3143,7 +3144,7 @@ static int ext4_quota_on_mount(struct super_block *sb, int type) 
 * Standard function to be called on quota_on

 */

static int ext4_quota_on(struct super_block *sb, int type, int format_id,

			 char *path)

			 char *path, int remount)

{

	int err;

	struct nameidata nd;
@@ -3151,9 +3152,9 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id, 
	if (!test_opt(sb, QUOTA))

		return -EINVAL;

	/* Not journalling quota? */

	if (!EXT4_SB(sb)->s_qf_names[USRQUOTA] &&

	    !EXT4_SB(sb)->s_qf_names[GRPQUOTA])

		return vfs_quota_on(sb, type, format_id, path);

	if ((!EXT4_SB(sb)->s_qf_names[USRQUOTA] &&

	    !EXT4_SB(sb)->s_qf_names[GRPQUOTA]) || remount)

		return vfs_quota_on(sb, type, format_id, path, remount);

	err = path_lookup(path, LOOKUP_FOLLOW, &nd);

	if (err)

		return err;
@@ -3168,7 +3169,7 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id, 
			"EXT4-fs: Quota file not on filesystem root. "

			"Journalled quota will not work.\n");

	path_put(&nd.path);

	return vfs_quota_on(sb, type, format_id, path);

	return vfs_quota_on(sb, type, format_id, path, remount);

}



/* Read data from quotafile - avoid pagecache and such because we cannot afford