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authorJan Kara <jack@suse.cz>2010-04-15 16:16:24 -0400
committerJan Kara <jack@suse.cz>2010-05-21 13:30:40 -0400
commit03f4d804a1b4748885dc4613a4afe10089a731c8 (patch)
treef2d7be9a0205496f14d61e6a8fe62277e653fab8 /fs/jbd/commit.c
parent311b9549ed2bb0f2c2257781c3e88cb00505e80e (diff)
jbd: Provide function to check whether transaction will issue data barrier
Provide a function which returns whether a transaction with given tid will send a barrier to the filesystem device. The function will be used by ext3 to detect whether fsync needs to send a separate barrier or not. Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/jbd/commit.c')
-rw-r--r--fs/jbd/commit.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index ecb44c94ba8d..28a9ddaa0c49 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -786,6 +786,12 @@ wait_for_iobuf:
786 786
787 jbd_debug(3, "JBD: commit phase 6\n"); 787 jbd_debug(3, "JBD: commit phase 6\n");
788 788
789 /* All metadata is written, now write commit record and do cleanup */
790 spin_lock(&journal->j_state_lock);
791 J_ASSERT(commit_transaction->t_state == T_COMMIT);
792 commit_transaction->t_state = T_COMMIT_RECORD;
793 spin_unlock(&journal->j_state_lock);
794
789 if (journal_write_commit_record(journal, commit_transaction)) 795 if (journal_write_commit_record(journal, commit_transaction))
790 err = -EIO; 796 err = -EIO;
791 797
@@ -923,7 +929,7 @@ restart_loop:
923 929
924 jbd_debug(3, "JBD: commit phase 8\n"); 930 jbd_debug(3, "JBD: commit phase 8\n");
925 931
926 J_ASSERT(commit_transaction->t_state == T_COMMIT); 932 J_ASSERT(commit_transaction->t_state == T_COMMIT_RECORD);
927 933
928 commit_transaction->t_state = T_FINISHED; 934 commit_transaction->t_state = T_FINISHED;
929 J_ASSERT(commit_transaction == journal->j_committing_transaction); 935 J_ASSERT(commit_transaction == journal->j_committing_transaction);