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reiserfs: use per-fs commit workqueues

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The reiserfs write lock hasn't been the BKL for some time. There's no
need to have different file systems queued up on the same workqueue.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jeff Mahoney
2014-04-23 10:00:34 -04:00
committed by Jan Kara
parent 38583f095c
commit 797d9016ce
3 changed files with 20 additions and 25 deletions
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22
fs/reiserfs/journal.c
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@@ -58,13 +58,6 @@
#define JOURNAL_WORK_ENTRY(h) (list_entry((h), struct reiserfs_journal_list, \
j_working_list))
/* the number of mounted filesystems. This is used to decide when to
** start and kill the commit workqueue
*/
static int reiserfs_mounted_fs_count;
static struct workqueue_struct *commit_wq;
#define JOURNAL_TRANS_HALF 1018 /* must be correct to keep the desc and commit
structs at 4k */
#define BUFNR 64 /*read ahead */
@@ -1882,7 +1875,6 @@ static int do_journal_release(struct reiserfs_transaction_handle *th,
}
}
reiserfs_mounted_fs_count--;
/* wait for all commits to finish */
cancel_delayed_work(&SB_JOURNAL(sb)->j_work);
@@ -1893,12 +1885,7 @@ static int do_journal_release(struct reiserfs_transaction_handle *th,
reiserfs_write_unlock(sb);
cancel_delayed_work_sync(&REISERFS_SB(sb)->old_work);
flush_workqueue(commit_wq);
if (!reiserfs_mounted_fs_count) {
destroy_workqueue(commit_wq);
commit_wq = NULL;
}
flush_workqueue(REISERFS_SB(sb)->commit_wq);
free_journal_ram(sb);
@@ -2807,10 +2794,6 @@ int journal_init(struct super_block *sb, const char *j_dev_name,
goto free_and_return;
}
reiserfs_mounted_fs_count++;
if (reiserfs_mounted_fs_count <= 1)
commit_wq = alloc_workqueue("reiserfs", WQ_MEM_RECLAIM, 0);
INIT_DELAYED_WORK(&journal->j_work, flush_async_commits);
journal->j_work_sb = sb;
return 0;
@@ -4134,7 +4117,8 @@ static int do_journal_end(struct reiserfs_transaction_handle *th,
flush_commit_list(sb, jl, 1);
flush_journal_list(sb, jl, 1);
} else if (!(jl->j_state & LIST_COMMIT_PENDING))
queue_delayed_work(commit_wq, &journal->j_work, HZ / 10);
queue_delayed_work(REISERFS_SB(sb)->commit_wq,
&journal->j_work, HZ / 10);
/* if the next transaction has any chance of wrapping, flush
** transactions that might get overwritten. If any journal lists are very