AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

jbd2: Fix buffer head leak when writing the commit block

Browse Source 
Also make sure the buffer heads are marked clean before submitting bh
for writing.  The previous code was marking the buffer head dirty,
which would have forced an unneeded write (and seek) to the journal
for no good reason.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o 2008-10-06 12:04:02 -04:00
parent ede86cc473
commit 45a90bfd90
1 changed files with 2 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
fs/jbd2/commit.c
View File

@ -127,8 +127,7 @@ static int journal_submit_commit_record(journal_t *journal,
JBUFFER_TRACE(descriptor, "submit commit block");
lock_buffer(bh);
get_bh(bh);
set_buffer_dirty(bh);
clear_buffer_dirty(bh);
set_buffer_uptodate(bh);
bh->b_end_io = journal_end_buffer_io_sync;
@ -158,7 +157,7 @@ static int journal_submit_commit_record(journal_t *journal,
/* And try again, without the barrier */
lock_buffer(bh);
set_buffer_uptodate(bh);
set_buffer_dirty(bh);
clear_buffer_dirty(bh);
ret = submit_bh(WRITE, bh);
}
*cbh = bh;