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Diffstat (limited to 'fs/btrfs/extent-tree.c')
-rw-r--r--fs/btrfs/extent-tree.c45
1 files changed, 25 insertions, 20 deletions
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index d637f4c4bcd0..566d170d0a0b 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4813,6 +4813,7 @@ skip_async:
}
struct reserve_ticket {
+ u64 orig_bytes;
u64 bytes;
int error;
struct list_head list;
@@ -5043,7 +5044,7 @@ static inline int need_do_async_reclaim(struct btrfs_fs_info *fs_info,
!test_bit(BTRFS_FS_STATE_REMOUNTING, &fs_info->fs_state));
}
-static void wake_all_tickets(struct list_head *head)
+static bool wake_all_tickets(struct list_head *head)
{
struct reserve_ticket *ticket;
@@ -5052,7 +5053,10 @@ static void wake_all_tickets(struct list_head *head)
list_del_init(&ticket->list);
ticket->error = -ENOSPC;
wake_up(&ticket->wait);
+ if (ticket->bytes != ticket->orig_bytes)
+ return true;
}
+ return false;
}
/*
@@ -5120,8 +5124,12 @@ static void btrfs_async_reclaim_metadata_space(struct work_struct *work)
if (flush_state > COMMIT_TRANS) {
commit_cycles++;
if (commit_cycles > 2) {
- wake_all_tickets(&space_info->tickets);
- space_info->flush = 0;
+ if (wake_all_tickets(&space_info->tickets)) {
+ flush_state = FLUSH_DELAYED_ITEMS_NR;
+ commit_cycles--;
+ } else {
+ space_info->flush = 0;
+ }
} else {
flush_state = FLUSH_DELAYED_ITEMS_NR;
}
@@ -5173,10 +5181,11 @@ static void priority_reclaim_metadata_space(struct btrfs_fs_info *fs_info,
static int wait_reserve_ticket(struct btrfs_fs_info *fs_info,
struct btrfs_space_info *space_info,
- struct reserve_ticket *ticket, u64 orig_bytes)
+ struct reserve_ticket *ticket)
{
DEFINE_WAIT(wait);
+ u64 reclaim_bytes = 0;
int ret = 0;
spin_lock(&space_info->lock);
@@ -5197,14 +5206,12 @@ static int wait_reserve_ticket(struct btrfs_fs_info *fs_info,
ret = ticket->error;
if (!list_empty(&ticket->list))
list_del_init(&ticket->list);
- if (ticket->bytes && ticket->bytes < orig_bytes) {
- u64 num_bytes = orig_bytes - ticket->bytes;
- update_bytes_may_use(space_info, -num_bytes);
- trace_btrfs_space_reservation(fs_info, "space_info",
- space_info->flags, num_bytes, 0);
- }
+ if (ticket->bytes && ticket->bytes < ticket->orig_bytes)
+ reclaim_bytes = ticket->orig_bytes - ticket->bytes;
spin_unlock(&space_info->lock);
+ if (reclaim_bytes)
+ space_info_add_old_bytes(fs_info, space_info, reclaim_bytes);
return ret;
}
@@ -5230,6 +5237,7 @@ static int __reserve_metadata_bytes(struct btrfs_fs_info *fs_info,
{
struct reserve_ticket ticket;
u64 used;
+ u64 reclaim_bytes = 0;
int ret = 0;
ASSERT(orig_bytes);
@@ -5265,6 +5273,7 @@ static int __reserve_metadata_bytes(struct btrfs_fs_info *fs_info,
* the list and we will do our own flushing further down.
*/
if (ret && flush != BTRFS_RESERVE_NO_FLUSH) {
+ ticket.orig_bytes = orig_bytes;
ticket.bytes = orig_bytes;
ticket.error = 0;
init_waitqueue_head(&ticket.wait);
@@ -5305,25 +5314,21 @@ static int __reserve_metadata_bytes(struct btrfs_fs_info *fs_info,
return ret;
if (flush == BTRFS_RESERVE_FLUSH_ALL)
- return wait_reserve_ticket(fs_info, space_info, &ticket,
- orig_bytes);
+ return wait_reserve_ticket(fs_info, space_info, &ticket);
ret = 0;
priority_reclaim_metadata_space(fs_info, space_info, &ticket);
spin_lock(&space_info->lock);
if (ticket.bytes) {
- if (ticket.bytes < orig_bytes) {
- u64 num_bytes = orig_bytes - ticket.bytes;
- update_bytes_may_use(space_info, -num_bytes);
- trace_btrfs_space_reservation(fs_info, "space_info",
- space_info->flags,
- num_bytes, 0);
-
- }
+ if (ticket.bytes < orig_bytes)
+ reclaim_bytes = orig_bytes - ticket.bytes;
list_del_init(&ticket.list);
ret = -ENOSPC;
}
spin_unlock(&space_info->lock);
+
+ if (reclaim_bytes)
+ space_info_add_old_bytes(fs_info, space_info, reclaim_bytes);
ASSERT(list_empty(&ticket.list));
return ret;
}