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[PATCH] jbd2: enable building of jbd2 and have ext4 use it rather than jbd

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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>
This commit is contained in:
Mingming Cao 2006-10-11 01:21:01 -07:00 • committed by Linus Torvalds
parent a920e9416b
commit dab291af8d
20 changed files with 141 additions and 108 deletions
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52
fs/ext4/inode.c
View file

@ -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 @@ int ext4_forget(handle_t *handle, int is_metadata, struct inode *inode,
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 @@ static int ext4_alloc_branch(handle_t *handle, struct inode *inode,
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 @@ static int ext4_splice_branch(handle_t *handle, struct inode *inode,
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 @@ static int walk_page_buffers( handle_t *handle,
* 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 @@ static int walk_page_buffers( handle_t *handle,
* 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 @@ out:
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 @@ static sector_t ext4_bmap(struct address_space *mapping, sector_t block)
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 @@ static int bput_one(handle_t *handle, struct buffer_head *bh)
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 @@ static int ext4_ordered_writepage(struct page *page,
*/
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 @@ static void ext4_invalidatepage(struct page *page, unsigned long offset)
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 @@ static int ext4_releasepage(struct page *page, gfp_t wait)
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 @@ static void ext4_clear_blocks(handle_t *handle, struct inode *inode,
/*
* 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 @@ static void ext4_free_branches(handle_t *handle, struct inode *inode,
* 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 @@ void ext4_truncate(struct inode *inode)
/*
* 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 @@ int ext4_mark_iloc_dirty(handle_t *handle,
/* 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 @@ static int ext4_pin_inode(handle_t *handle, struct inode *inode)
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 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val)
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 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val)
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. */