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authorTheodore Ts'o <tytso@mit.edu>2008-10-16 20:00:24 -0400
committerTheodore Ts'o <tytso@mit.edu>2008-10-16 20:00:24 -0400
commit3e624fc72fba09b6f999a9fbb87b64efccd38036 (patch)
treef0a1feac377788b27ea704519a33f367a6d415f9 /fs/jbd2/commit.c
parent22359f5745eb26bd3205a1ede7968c8944398220 (diff)
ext4: Replace hackish ext4_mb_poll_new_transaction with commit callback
The multiblock allocator needs to be able to release blocks (and issue a blkdev discard request) when the transaction which freed those blocks is committed. Previously this was done via a polling mechanism when blocks are allocated or freed. A much better way of doing things is to create a jbd2 callback function and attaching the list of blocks to be freed directly to the transaction structure. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/jbd2/commit.c')
-rw-r--r--fs/jbd2/commit.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 0abe02c4242..8b119e16aa3 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -995,6 +995,9 @@ restart_loop:
}
spin_unlock(&journal->j_list_lock);
+ if (journal->j_commit_callback)
+ journal->j_commit_callback(journal, commit_transaction);
+
trace_mark(jbd2_end_commit, "dev %s transaction %d head %d",
journal->j_devname, commit_transaction->t_tid,
journal->j_tail_sequence);