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Btrfs: add a flags field to btrfs_transaction

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I want to set some per transaction flags, so instead of adding yet another int
lets just convert the current two int indicators to flags and add a flags field
for future use.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Josef Bacik
2015-09-24 10:46:10 -04:00
committed by Chris Mason
parent 0b670dc44c
commit 3204d33cda
4 changed files with 16 additions and 18 deletions
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18
fs/btrfs/transaction.c
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@@ -239,10 +239,9 @@ loop:
* commit the transaction.
*/
atomic_set(&cur_trans->use_count, 2);
cur_trans->have_free_bgs = 0;
atomic_set(&cur_trans->pending_ordered, 0);
cur_trans->flags = 0;
cur_trans->start_time = get_seconds();
cur_trans->dirty_bg_run = 0;
memset(&cur_trans->delayed_refs, 0, sizeof(cur_trans->delayed_refs));
@@ -1837,7 +1836,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
return ret;
}
if (!cur_trans->dirty_bg_run) {
if (!test_bit(BTRFS_TRANS_DIRTY_BG_RUN, &cur_trans->flags)) {
int run_it = 0;
/* this mutex is also taken before trying to set
@@ -1846,18 +1845,17 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
* after a extents from that block group have been
* allocated for cache files. btrfs_set_block_group_ro
* will wait for the transaction to commit if it
* finds dirty_bg_run = 1
* finds BTRFS_TRANS_DIRTY_BG_RUN set.
*
* The dirty_bg_run flag is also used to make sure only
* one process starts all the block group IO. It wouldn't
* The BTRFS_TRANS_DIRTY_BG_RUN flag is also used to make sure
* only one process starts all the block group IO. It wouldn't
* hurt to have more than one go through, but there's no
* real advantage to it either.
*/
mutex_lock(&root->fs_info->ro_block_group_mutex);
if (!cur_trans->dirty_bg_run) {
if (!test_and_set_bit(BTRFS_TRANS_DIRTY_BG_RUN,
&cur_trans->flags))
run_it = 1;
cur_trans->dirty_bg_run = 1;
}
mutex_unlock(&root->fs_info->ro_block_group_mutex);
if (run_it)
@@ -2127,7 +2125,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
btrfs_finish_extent_commit(trans, root);
if (cur_trans->have_free_bgs)
if (test_bit(BTRFS_TRANS_HAVE_FREE_BGS, &cur_trans->flags))
btrfs_clear_space_info_full(root->fs_info);
root->fs_info->last_trans_committed = cur_trans->transid;