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Commit ca0e05e4 authored by Dmitry Monakhov's avatar Dmitry Monakhov Committed by Theodore Ts'o
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ext4: force block allocation on quota_off 



Perform full sync procedure so that any delayed allocation blocks are
allocated so quota will be consistent.

Signed-off-by: default avatarDmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
parent 437f88cc

fs/ext4/super.c

+14 −1
Original line number Diff line number Diff line
@@ -1118,6 +1118,7 @@ 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_off(struct super_block *sb, int type);

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);
@@ -1139,7 +1140,7 @@ static const struct dquot_operations ext4_quota_operations = { 


static const struct quotactl_ops ext4_qctl_operations = {

	.quota_on	= ext4_quota_on,

	.quota_off	= dquot_quota_off,

	.quota_off	= ext4_quota_off,

	.quota_sync	= dquot_quota_sync,

	.get_info	= dquot_get_dqinfo,

	.set_info	= dquot_set_dqinfo,
@@ -4098,6 +4099,18 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id, 
	return err;

}



static int ext4_quota_off(struct super_block *sb, int type)

{

	/* Force all delayed allocation blocks to be allocated */

	if (test_opt(sb, DELALLOC)) {

		down_read(&sb->s_umount);

		sync_filesystem(sb);

		up_read(&sb->s_umount);

	}



	return dquot_quota_off(sb, type);

}



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

 * acquiring the locks... As quota files are never truncated and quota code

 * itself serializes the operations (and noone else should touch the files)