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JBD: JBD slab allocation cleanups

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JBD: Replace slab allocations with page allocations

JBD allocate memory for committed_data and frozen_data from slab. However
JBD should not pass slab pages down to the block layer. Use page allocator pages instead. This will also prepare JBD for the large blocksize patchset.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
This commit is contained in:
Mingming Cao
2007-10-16 18:38:25 -04:00
committed by Theodore Ts'o
parent d85714d81c
commit c089d490df
4 changed files with 21 additions and 94 deletions
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8
fs/jbd/transaction.c
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@@ -675,7 +675,7 @@ repeat:
JBUFFER_TRACE(jh, "allocate memory for buffer");
jbd_unlock_bh_state(bh);
frozen_buffer =
jbd_slab_alloc(jh2bh(jh)->b_size,
jbd_alloc(jh2bh(jh)->b_size,
GFP_NOFS);
if (!frozen_buffer) {
printk(KERN_EMERG
@@ -735,7 +735,7 @@ done:
out:
if (unlikely(frozen_buffer)) /* It's usually NULL */
jbd_slab_free(frozen_buffer, bh->b_size);
jbd_free(frozen_buffer, bh->b_size);
JBUFFER_TRACE(jh, "exit");
return error;
@@ -888,7 +888,7 @@ int journal_get_undo_access(handle_t *handle, struct buffer_head *bh)
repeat:
if (!jh->b_committed_data) {
committed_data = jbd_slab_alloc(jh2bh(jh)->b_size, GFP_NOFS);
committed_data = jbd_alloc(jh2bh(jh)->b_size, GFP_NOFS);
if (!committed_data) {
printk(KERN_EMERG "%s: No memory for committed data\n",
__FUNCTION__);
@@ -915,7 +915,7 @@ repeat:
out:
journal_put_journal_head(jh);
if (unlikely(committed_data))
jbd_slab_free(committed_data, bh->b_size);
jbd_free(committed_data, bh->b_size);
return err;
}