#include <linux/jiffies.h>
#include <linux/writeback.h>
#include <linux/workqueue.h>
+#include <linux/llist.h>
#include <cluster/masklog.h>
len = sb->s_blocksize - OCFS2_QBLK_RESERVED_SPACE - offset;
}
- if (gqinode->i_size < off + len) {
+ if (i_size_read(gqinode) < off + len) {
loff_t rounded_end =
ocfs2_align_bytes_to_blocks(sb, off + len);
int ocfs2_global_read_info(struct super_block *sb, int type)
{
struct inode *gqinode = NULL;
- unsigned int ino[MAXQUOTAS] = { USER_QUOTA_SYSTEM_INODE,
- GROUP_QUOTA_SYSTEM_INODE };
+ unsigned int ino[OCFS2_MAXQUOTAS] = { USER_QUOTA_SYSTEM_INODE,
+ GROUP_QUOTA_SYSTEM_INODE };
struct ocfs2_global_disk_dqinfo dinfo;
struct mem_dqinfo *info = sb_dqinfo(sb, type);
struct ocfs2_mem_dqinfo *oinfo = info->dqi_priv;
OCFS2_INODE_UPDATE_CREDITS;
}
+void ocfs2_drop_dquot_refs(struct work_struct *work)
+{
+ struct ocfs2_super *osb = container_of(work, struct ocfs2_super,
+ dquot_drop_work);
+ struct llist_node *list;
+ struct ocfs2_dquot *odquot, *next_odquot;
+
+ list = llist_del_all(&osb->dquot_drop_list);
+ llist_for_each_entry_safe(odquot, next_odquot, list, list) {
+ /* Drop the reference we acquired in ocfs2_dquot_release() */
+ dqput(&odquot->dq_dquot);
+ }
+}
+
+/*
+ * Called when the last reference to dquot is dropped. If we are called from
+ * downconvert thread, we cannot do all the handling here because grabbing
+ * quota lock could deadlock (the node holding the quota lock could need some
+ * other cluster lock to proceed but with blocked downconvert thread we cannot
+ * release any lock).
+ */
static int ocfs2_release_dquot(struct dquot *dquot)
{
handle_t *handle;
/* Check whether we are not racing with some other dqget() */
if (atomic_read(&dquot->dq_count) > 1)
goto out;
+ /* Running from downconvert thread? Postpone quota processing to wq */
+ if (current == osb->dc_task) {
+ /*
+ * Grab our own reference to dquot and queue it for delayed
+ * dropping. Quota code rechecks after calling
+ * ->release_dquot() and won't free dquot structure.
+ */
+ dqgrab(dquot);
+ /* First entry on list -> queue work */
+ if (llist_add(&OCFS2_DQUOT(dquot)->list, &osb->dquot_drop_list))
+ queue_work(ocfs2_wq, &osb->dquot_drop_work);
+ goto out;
+ }
status = ocfs2_lock_global_qf(oinfo, 1);
if (status < 0)
goto out;
*/
WARN_ON(journal_current_handle());
status = ocfs2_extend_no_holes(gqinode, NULL,
- gqinode->i_size + (need_alloc << sb->s_blocksize_bits),
- gqinode->i_size);
+ i_size_read(gqinode) + (need_alloc << sb->s_blocksize_bits),
+ i_size_read(gqinode));
if (status < 0)
goto out_dq;
}