On 04/19/2013 10:48 PM, Jan Kara wrote: > On Fri 19-04-13 10:29:36, majianpeng wrote: >> Because alloc struct buffer_head using kmem_cache_zalloc,so it's not need to >> call 'init_buffer(bh, NULL, NULL)'. >> >> Signed-off-by: Jianpeng Ma <majianp...@gmail.com> >> --- >> fs/buffer.c | 2 -- >> fs/jbd/journal.c | 1 - >> fs/jbd2/journal.c | 1 - >> 3 files changed, 4 deletions(-) >> >> diff --git a/fs/buffer.c b/fs/buffer.c >> index b4dcb34..52b7739 100644 >> --- a/fs/buffer.c >> +++ b/fs/buffer.c >> @@ -865,8 +865,6 @@ try_again: >> >> /* Link the buffer to its page */ >> set_bh_page(bh, page, offset); >> - >> - init_buffer(bh, NULL, NULL); >> } >> return head; >> /* >> diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c >> index 81cc7ea..0c3fe90 100644 >> --- a/fs/jbd/journal.c >> +++ b/fs/jbd/journal.c >> @@ -311,7 +311,6 @@ int journal_write_metadata_buffer(transaction_t >> *transaction, >> new_bh = alloc_buffer_head(GFP_NOFS|__GFP_NOFAIL); >> /* keep subsequent assertions sane */ >> new_bh->b_state = 0; >> - init_buffer(new_bh, NULL, NULL); > You can also remove b_state = 0 , can't you? > >> atomic_set(&new_bh->b_count, 1); >> new_jh = journal_add_journal_head(new_bh); /* This sleeps */ >> >> diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c >> index ed10991..95120c6 100644 >> --- a/fs/jbd2/journal.c >> +++ b/fs/jbd2/journal.c >> @@ -368,7 +368,6 @@ retry_alloc: >> >> /* keep subsequent assertions sane */ >> new_bh->b_state = 0; >> - init_buffer(new_bh, NULL, NULL); > And the same here. Otherwise the patch looks OK. > > Honza Thanks your suggestions.I'll resend .
Thanks! Jianpeng -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
