Because alloc 'struct buffer_head' using kmem_cache_zalloc,so it doesn't
need to call 'init_buffer(bh, NULL, NULL)' and other set-zero-operation.
Signed-off-by: Jianpeng Ma <majianpeng@xxxxxxxxx>
---
fs/buffer.c | 2 --
fs/jbd/journal.c | 2 --
fs/jbd2/journal.c | 2 --
3 files changed, 6 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..865c430 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -310,8 +310,6 @@ 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);
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..8b220f1 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -367,8 +367,6 @@ retry_alloc:
}
/* keep subsequent assertions sane */
- new_bh->b_state = 0;
- init_buffer(new_bh, NULL, NULL);
atomic_set(&new_bh->b_count, 1);
new_jh = jbd2_journal_add_journal_head(new_bh); /* This sleeps */
--
1.8.2.rc2.4.g7799588
--
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