AcoSail/kernel_optimize_test
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jbd: remove the second argument of k[un]map_atomic()

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Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Cong Wang <amwang@redhat.com>
This commit is contained in:
Cong Wang 2011-11-25 23:14:31 +08:00 committed by Cong Wang
parent d93492855f
commit 8fb53c46d9
2 changed files with 8 additions and 8 deletions
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12
fs/jbd/journal.c
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@ -328,7 +328,7 @@ int journal_write_metadata_buffer(transaction_t *transaction,
new_offset = offset_in_page(jh2bh(jh_in)->b_data);
}
mapped_data = kmap_atomic(new_page, KM_USER0);
mapped_data = kmap_atomic(new_page);
/*
* Check for escaping
*/
@ -337,7 +337,7 @@ int journal_write_metadata_buffer(transaction_t *transaction,
need_copy_out = 1;
do_escape = 1;
}
kunmap_atomic(mapped_data, KM_USER0);
kunmap_atomic(mapped_data);
/*
* Do we need to do a data copy?
@ -354,9 +354,9 @@ int journal_write_metadata_buffer(transaction_t *transaction,
}
jh_in->b_frozen_data = tmp;
mapped_data = kmap_atomic(new_page, KM_USER0);
mapped_data = kmap_atomic(new_page);
memcpy(tmp, mapped_data + new_offset, jh2bh(jh_in)->b_size);
kunmap_atomic(mapped_data, KM_USER0);
kunmap_atomic(mapped_data);
new_page = virt_to_page(tmp);
new_offset = offset_in_page(tmp);
@ -368,9 +368,9 @@ int journal_write_metadata_buffer(transaction_t *transaction,
* copying, we can finally do so.
*/
if (do_escape) {
mapped_data = kmap_atomic(new_page, KM_USER0);
mapped_data = kmap_atomic(new_page);
*((unsigned int *)(mapped_data + new_offset)) = 0;
kunmap_atomic(mapped_data, KM_USER0);
kunmap_atomic(mapped_data);
}
set_bh_page(new_bh, new_page, new_offset);

4
fs/jbd/transaction.c
View File

@ -718,9 +718,9 @@ do_get_write_access(handle_t *handle, struct journal_head *jh,
"Possible IO failure.\n");
page = jh2bh(jh)->b_page;
offset = offset_in_page(jh2bh(jh)->b_data);
source = kmap_atomic(page, KM_USER0);
source = kmap_atomic(page);
memcpy(jh->b_frozen_data, source+offset, jh2bh(jh)->b_size);
kunmap_atomic(source, KM_USER0);
kunmap_atomic(source);
}
jbd_unlock_bh_state(bh);