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btrfs: move btrfs_space_info_add_*_bytes to space-info.c

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Now that we've moved all the pre-requisite stuff, move these two
functions.

Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Josef Bacik 2019-06-18 16:09:22 -04:00 committed by David Sterba
parent bb96c4e574
commit b338b013e1
3 changed files with 114 additions and 111 deletions
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111
fs/btrfs/extent-tree.c
View File

@ -4485,14 +4485,6 @@ skip_async:
}
}
struct reserve_ticket {
u64 orig_bytes;
u64 bytes;
int error;
struct list_head list;
wait_queue_head_t wait;
};
/**
* maybe_commit_transaction - possibly commit the transaction if its ok to
* @root - the root we're allocating for
@ -5211,109 +5203,6 @@ int btrfs_delayed_refs_rsv_refill(struct btrfs_fs_info *fs_info,
return 0;
}
/*
* This is for space we already have accounted in space_info->bytes_may_use, so
* basically when we're returning space from block_rsv's.
*/
void btrfs_space_info_add_old_bytes(struct btrfs_fs_info *fs_info,
struct btrfs_space_info *space_info,
u64 num_bytes)
{
struct reserve_ticket *ticket;
struct list_head *head;
u64 used;
enum btrfs_reserve_flush_enum flush = BTRFS_RESERVE_NO_FLUSH;
bool check_overcommit = false;
spin_lock(&space_info->lock);
head = &space_info->priority_tickets;
/*
* If we are over our limit then we need to check and see if we can
* overcommit, and if we can't then we just need to free up our space
* and not satisfy any requests.
*/
used = btrfs_space_info_used(space_info, true);
if (used - num_bytes >= space_info->total_bytes)
check_overcommit = true;
again:
while (!list_empty(head) && num_bytes) {
ticket = list_first_entry(head, struct reserve_ticket,
list);
/*
* We use 0 bytes because this space is already reserved, so
* adding the ticket space would be a double count.
*/
if (check_overcommit &&
!btrfs_can_overcommit(fs_info, space_info, 0, flush, false))
break;
if (num_bytes >= ticket->bytes) {
list_del_init(&ticket->list);
num_bytes -= ticket->bytes;
ticket->bytes = 0;
space_info->tickets_id++;
wake_up(&ticket->wait);
} else {
ticket->bytes -= num_bytes;
num_bytes = 0;
}
}
if (num_bytes && head == &space_info->priority_tickets) {
head = &space_info->tickets;
flush = BTRFS_RESERVE_FLUSH_ALL;
goto again;
}
btrfs_space_info_update_bytes_may_use(fs_info, space_info, -num_bytes);
trace_btrfs_space_reservation(fs_info, "space_info",
space_info->flags, num_bytes, 0);
spin_unlock(&space_info->lock);
}
/*
* This is for newly allocated space that isn't accounted in
* space_info->bytes_may_use yet. So if we allocate a chunk or unpin an extent
* we use this helper.
*/
void btrfs_space_info_add_new_bytes(struct btrfs_fs_info *fs_info,
struct btrfs_space_info *space_info,
u64 num_bytes)
{
struct reserve_ticket *ticket;
struct list_head *head = &space_info->priority_tickets;
again:
while (!list_empty(head) && num_bytes) {
ticket = list_first_entry(head, struct reserve_ticket,
list);
if (num_bytes >= ticket->bytes) {
trace_btrfs_space_reservation(fs_info, "space_info",
space_info->flags,
ticket->bytes, 1);
list_del_init(&ticket->list);
num_bytes -= ticket->bytes;
btrfs_space_info_update_bytes_may_use(fs_info,
space_info, ticket->bytes);
ticket->bytes = 0;
space_info->tickets_id++;
wake_up(&ticket->wait);
} else {
trace_btrfs_space_reservation(fs_info, "space_info",
space_info->flags,
num_bytes, 1);
btrfs_space_info_update_bytes_may_use(fs_info,
space_info, num_bytes);
ticket->bytes -= num_bytes;
num_bytes = 0;
}
}
if (num_bytes && head == &space_info->priority_tickets) {
head = &space_info->tickets;
goto again;
}
}
static u64 block_rsv_release_bytes(struct btrfs_fs_info *fs_info,
struct btrfs_block_rsv *block_rsv,
struct btrfs_block_rsv *dest, u64 num_bytes,

106
fs/btrfs/space-info.c
View File

@ -240,3 +240,109 @@ int btrfs_can_overcommit(struct btrfs_fs_info *fs_info,
return 1;
return 0;
}
/*
* This is for space we already have accounted in space_info->bytes_may_use, so
* basically when we're returning space from block_rsv's.
*/
void btrfs_space_info_add_old_bytes(struct btrfs_fs_info *fs_info,
struct btrfs_space_info *space_info,
u64 num_bytes)
{
struct reserve_ticket *ticket;
struct list_head *head;
u64 used;
enum btrfs_reserve_flush_enum flush = BTRFS_RESERVE_NO_FLUSH;
bool check_overcommit = false;
spin_lock(&space_info->lock);
head = &space_info->priority_tickets;
/*
* If we are over our limit then we need to check and see if we can
* overcommit, and if we can't then we just need to free up our space
* and not satisfy any requests.
*/
used = btrfs_space_info_used(space_info, true);
if (used - num_bytes >= space_info->total_bytes)
check_overcommit = true;
again:
while (!list_empty(head) && num_bytes) {
ticket = list_first_entry(head, struct reserve_ticket,
list);
/*
* We use 0 bytes because this space is already reserved, so
* adding the ticket space would be a double count.
*/
if (check_overcommit &&
!btrfs_can_overcommit(fs_info, space_info, 0, flush,
false))
break;
if (num_bytes >= ticket->bytes) {
list_del_init(&ticket->list);
num_bytes -= ticket->bytes;
ticket->bytes = 0;
space_info->tickets_id++;
wake_up(&ticket->wait);
} else {
ticket->bytes -= num_bytes;
num_bytes = 0;
}
}
if (num_bytes && head == &space_info->priority_tickets) {
head = &space_info->tickets;
flush = BTRFS_RESERVE_FLUSH_ALL;
goto again;
}
btrfs_space_info_update_bytes_may_use(fs_info, space_info, -num_bytes);
trace_btrfs_space_reservation(fs_info, "space_info",
space_info->flags, num_bytes, 0);
spin_unlock(&space_info->lock);
}
/*
* This is for newly allocated space that isn't accounted in
* space_info->bytes_may_use yet. So if we allocate a chunk or unpin an extent
* we use this helper.
*/
void btrfs_space_info_add_new_bytes(struct btrfs_fs_info *fs_info,
struct btrfs_space_info *space_info,
u64 num_bytes)
{
struct reserve_ticket *ticket;
struct list_head *head = &space_info->priority_tickets;
again:
while (!list_empty(head) && num_bytes) {
ticket = list_first_entry(head, struct reserve_ticket,
list);
if (num_bytes >= ticket->bytes) {
trace_btrfs_space_reservation(fs_info, "space_info",
space_info->flags,
ticket->bytes, 1);
list_del_init(&ticket->list);
num_bytes -= ticket->bytes;
btrfs_space_info_update_bytes_may_use(fs_info,
space_info,
ticket->bytes);
ticket->bytes = 0;
space_info->tickets_id++;
wake_up(&ticket->wait);
} else {
trace_btrfs_space_reservation(fs_info, "space_info",
space_info->flags,
num_bytes, 1);
btrfs_space_info_update_bytes_may_use(fs_info,
space_info,
num_bytes);
ticket->bytes -= num_bytes;
num_bytes = 0;
}
}
if (num_bytes && head == &space_info->priority_tickets) {
head = &space_info->tickets;
goto again;
}
}

8
fs/btrfs/space-info.h
View File

@ -69,6 +69,14 @@ struct btrfs_space_info {
struct kobject *block_group_kobjs[BTRFS_NR_RAID_TYPES];
};
struct reserve_ticket {
u64 orig_bytes;
u64 bytes;
int error;
struct list_head list;
wait_queue_head_t wait;
};
static inline bool btrfs_mixed_space_info(struct btrfs_space_info *space_info)
{
return ((space_info->flags & BTRFS_BLOCK_GROUP_METADATA) &&