[PATCH] jbd2: enable building of jbd2 and have ext4 use it rather than jbd
Reworked from a patch by Mingming Cao and Randy Dunlap
Signed-off-By: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 7275d60..0d96c7d 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -25,8 +25,8 @@
#include <linux/module.h>
#include <linux/fs.h>
#include <linux/time.h>
-#include <linux/ext4_jbd.h>
-#include <linux/jbd.h>
+#include <linux/ext4_jbd2.h>
+#include <linux/jbd2.h>
#include <linux/smp_lock.h>
#include <linux/highuid.h>
#include <linux/pagemap.h>
@@ -84,7 +84,7 @@
if (test_opt(inode->i_sb, DATA_FLAGS) == EXT4_MOUNT_JOURNAL_DATA ||
(!is_metadata && !ext4_should_journal_data(inode))) {
if (bh) {
- BUFFER_TRACE(bh, "call journal_forget");
+ BUFFER_TRACE(bh, "call jbd2_journal_forget");
return ext4_journal_forget(handle, bh);
}
return 0;
@@ -657,7 +657,7 @@
failed:
/* Allocation failed, free what we already allocated */
for (i = 1; i <= n ; i++) {
- BUFFER_TRACE(branch[i].bh, "call journal_forget");
+ BUFFER_TRACE(branch[i].bh, "call jbd2_journal_forget");
ext4_journal_forget(handle, branch[i].bh);
}
for (i = 0; i <indirect_blks; i++)
@@ -758,7 +758,7 @@
err_out:
for (i = 1; i <= num; i++) {
- BUFFER_TRACE(where[i].bh, "call journal_forget");
+ BUFFER_TRACE(where[i].bh, "call jbd2_journal_forget");
ext4_journal_forget(handle, where[i].bh);
ext4_free_blocks(handle,inode,le32_to_cpu(where[i-1].key),1);
}
@@ -1119,7 +1119,7 @@
* To preserve ordering, it is essential that the hole instantiation and
* the data write be encapsulated in a single transaction. We cannot
* close off a transaction and start a new one between the ext4_get_block()
- * and the commit_write(). So doing the journal_start at the start of
+ * and the commit_write(). So doing the jbd2_journal_start at the start of
* prepare_write() is the right place.
*
* Also, this function can nest inside ext4_writepage() ->
@@ -1135,7 +1135,7 @@
* transaction open and was blocking on the quota lock - a ranking
* violation.
*
- * So what we do is to rely on the fact that journal_stop/journal_start
+ * So what we do is to rely on the fact that jbd2_journal_stop/journal_start
* will _not_ run commit under these circumstances because handle->h_ref
* is elevated. We'll still have enough credits for the tiny quotafile
* write.
@@ -1184,7 +1184,7 @@
int ext4_journal_dirty_data(handle_t *handle, struct buffer_head *bh)
{
- int err = journal_dirty_data(handle, bh);
+ int err = jbd2_journal_dirty_data(handle, bh);
if (err)
ext4_journal_abort_handle(__FUNCTION__, __FUNCTION__,
bh, handle,err);
@@ -1333,9 +1333,9 @@
EXT4_I(inode)->i_state &= ~EXT4_STATE_JDATA;
journal = EXT4_JOURNAL(inode);
- journal_lock_updates(journal);
- err = journal_flush(journal);
- journal_unlock_updates(journal);
+ jbd2_journal_lock_updates(journal);
+ err = jbd2_journal_flush(journal);
+ jbd2_journal_unlock_updates(journal);
if (err)
return 0;
@@ -1356,7 +1356,7 @@
return 0;
}
-static int journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh)
+static int jbd2_journal_dirty_data_fn(handle_t *handle, struct buffer_head *bh)
{
if (buffer_mapped(bh))
return ext4_journal_dirty_data(handle, bh);
@@ -1464,7 +1464,7 @@
*/
if (ret == 0) {
err = walk_page_buffers(handle, page_bufs, 0, PAGE_CACHE_SIZE,
- NULL, journal_dirty_data_fn);
+ NULL, jbd2_journal_dirty_data_fn);
if (!ret)
ret = err;
}
@@ -1595,7 +1595,7 @@
if (offset == 0)
ClearPageChecked(page);
- journal_invalidatepage(journal, page, offset);
+ jbd2_journal_invalidatepage(journal, page, offset);
}
static int ext4_releasepage(struct page *page, gfp_t wait)
@@ -1605,7 +1605,7 @@
WARN_ON(PageChecked(page));
if (!page_has_buffers(page))
return 0;
- return journal_try_to_free_buffers(journal, page, wait);
+ return jbd2_journal_try_to_free_buffers(journal, page, wait);
}
/*
@@ -1982,11 +1982,11 @@
/*
* Any buffers which are on the journal will be in memory. We find
- * them on the hash table so journal_revoke() will run journal_forget()
+ * them on the hash table so jbd2_journal_revoke() will run jbd2_journal_forget()
* on them. We've already detached each block from the file, so
- * bforget() in journal_forget() should be safe.
+ * bforget() in jbd2_journal_forget() should be safe.
*
- * AKPM: turn on bforget in journal_forget()!!!
+ * AKPM: turn on bforget in jbd2_journal_forget()!!!
*/
for (p = first; p < last; p++) {
u32 nr = le32_to_cpu(*p);
@@ -2132,11 +2132,11 @@
* We've probably journalled the indirect block several
* times during the truncate. But it's no longer
* needed and we now drop it from the transaction via
- * journal_revoke().
+ * jbd2_journal_revoke().
*
* That's easy if it's exclusively part of this
* transaction. But if it's part of the committing
- * transaction then journal_forget() will simply
+ * transaction then jbd2_journal_forget() will simply
* brelse() it. That means that if the underlying
* block is reallocated in ext4_get_block(),
* unmap_underlying_metadata() will find this block
@@ -2251,7 +2251,7 @@
/*
* We have to lock the EOF page here, because lock_page() nests
- * outside journal_start().
+ * outside jbd2_journal_start().
*/
if ((inode->i_size & (blocksize - 1)) == 0) {
/* Block boundary? Nothing to do */
@@ -3035,7 +3035,7 @@
/* the do_update_inode consumes one bh->b_count */
get_bh(iloc->bh);
- /* ext4_do_update_inode() does journal_dirty_metadata */
+ /* ext4_do_update_inode() does jbd2_journal_dirty_metadata */
err = ext4_do_update_inode(handle, inode, iloc);
put_bh(iloc->bh);
return err;
@@ -3153,7 +3153,7 @@
err = ext4_get_inode_loc(inode, &iloc);
if (!err) {
BUFFER_TRACE(iloc.bh, "get_write_access");
- err = journal_get_write_access(handle, iloc.bh);
+ err = jbd2_journal_get_write_access(handle, iloc.bh);
if (!err)
err = ext4_journal_dirty_metadata(handle,
iloc.bh);
@@ -3185,8 +3185,8 @@
if (is_journal_aborted(journal) || IS_RDONLY(inode))
return -EROFS;
- journal_lock_updates(journal);
- journal_flush(journal);
+ jbd2_journal_lock_updates(journal);
+ jbd2_journal_flush(journal);
/*
* OK, there are no updates running now, and all cached data is
@@ -3202,7 +3202,7 @@
EXT4_I(inode)->i_flags &= ~EXT4_JOURNAL_DATA_FL;
ext4_set_aops(inode);
- journal_unlock_updates(journal);
+ jbd2_journal_unlock_updates(journal);
/* Finally we can mark the inode as dirty. */