diff options
Diffstat (limited to 'fs/ext4/super.c')
-rw-r--r-- | fs/ext4/super.c | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/fs/ext4/super.c b/fs/ext4/super.c index c9e7be58756b..71b9a667e1bc 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -951,6 +951,7 @@ static void ext4_put_super(struct super_block *sb) if (sbi->s_chksum_driver) crypto_free_shash(sbi->s_chksum_driver); kfree(sbi->s_blockgroup_lock); + fs_put_dax(sbi->s_daxdev); kfree(sbi); } @@ -3398,6 +3399,7 @@ static void ext4_set_resv_clusters(struct super_block *sb) static int ext4_fill_super(struct super_block *sb, void *data, int silent) { + struct dax_device *dax_dev = fs_dax_get_by_bdev(sb->s_bdev); char *orig_data = kstrdup(data, GFP_KERNEL); struct buffer_head *bh; struct ext4_super_block *es = NULL; @@ -3423,6 +3425,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent) if ((data && !orig_data) || !sbi) goto out_free_base; + sbi->s_daxdev = dax_dev; sbi->s_blockgroup_lock = kzalloc(sizeof(struct blockgroup_lock), GFP_KERNEL); if (!sbi->s_blockgroup_lock) @@ -4399,6 +4402,7 @@ out_fail: out_free_base: kfree(sbi); kfree(orig_data); + fs_put_dax(dax_dev); return err ? err : ret; } @@ -5215,7 +5219,7 @@ static int ext4_statfs_project(struct super_block *sb, dquot = dqget(sb, qid); if (IS_ERR(dquot)) return PTR_ERR(dquot); - spin_lock(&dq_data_lock); + spin_lock(&dquot->dq_dqb_lock); limit = (dquot->dq_dqb.dqb_bsoftlimit ? dquot->dq_dqb.dqb_bsoftlimit : @@ -5238,7 +5242,7 @@ static int ext4_statfs_project(struct super_block *sb, (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0; } - spin_unlock(&dq_data_lock); + spin_unlock(&dquot->dq_dqb_lock); dqput(dquot); return 0; } @@ -5284,18 +5288,13 @@ static int ext4_statfs(struct dentry *dentry, struct kstatfs *buf) return 0; } -/* Helper function for writing quotas on sync - we need to start transaction - * before quota file is locked for write. Otherwise the are possible deadlocks: - * Process 1 Process 2 - * ext4_create() quota_sync() - * jbd2_journal_start() write_dquot() - * dquot_initialize() down(dqio_mutex) - * down(dqio_mutex) jbd2_journal_start() - * - */ #ifdef CONFIG_QUOTA +/* + * Helper functions so that transaction is started before we acquire dqio_sem + * to keep correct lock ordering of transaction > dqio_sem + */ static inline struct inode *dquot_to_inode(struct dquot *dquot) { return sb_dqopt(dquot->dq_sb)->files[dquot->dq_id.type]; @@ -5430,6 +5429,13 @@ static int ext4_quota_on(struct super_block *sb, int type, int format_id, ext4_msg(sb, KERN_WARNING, "Quota file not on filesystem root. " "Journaled quota will not work"); + sb_dqopt(sb)->flags |= DQUOT_NOLIST_DIRTY; + } else { + /* + * Clear the flag just in case mount options changed since + * last time. + */ + sb_dqopt(sb)->flags &= ~DQUOT_NOLIST_DIRTY; } /* @@ -5526,7 +5532,7 @@ static int ext4_enable_quotas(struct super_block *sb) test_opt(sb, PRJQUOTA), }; - sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE; + sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE | DQUOT_NOLIST_DIRTY; for (type = 0; type < EXT4_MAXQUOTAS; type++) { if (qf_inums[type]) { err = ext4_quota_enable(sb, type, QFMT_VFS_V1, |