[PATCH] jbd2: rename jbd2 symbols to avoid duplication of jbd symbols
Mingming Cao originally did this work, and Shaggy reproduced it using some
scripts from her.
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/jbd2/commit.c b/fs/jbd2/commit.c
index 10be512..b1a4eaf 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -1,5 +1,5 @@
/*
- * linux/fs/jbd/commit.c
+ * linux/fs/jbd2/commit.c
*
* Written by Stephen C. Tweedie <sct@redhat.com>, 1998
*
@@ -15,7 +15,7 @@
#include <linux/time.h>
#include <linux/fs.h>
-#include <linux/jbd.h>
+#include <linux/jbd2.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/mm.h>
@@ -111,7 +111,7 @@
if (is_journal_aborted(journal))
return 0;
- descriptor = journal_get_descriptor_buffer(journal);
+ descriptor = jbd2_journal_get_descriptor_buffer(journal);
if (!descriptor)
return 1;
@@ -120,14 +120,14 @@
/* AKPM: buglet - add `i' to tmp! */
for (i = 0; i < bh->b_size; i += 512) {
journal_header_t *tmp = (journal_header_t*)bh->b_data;
- tmp->h_magic = cpu_to_be32(JFS_MAGIC_NUMBER);
- tmp->h_blocktype = cpu_to_be32(JFS_COMMIT_BLOCK);
+ tmp->h_magic = cpu_to_be32(JBD2_MAGIC_NUMBER);
+ tmp->h_blocktype = cpu_to_be32(JBD2_COMMIT_BLOCK);
tmp->h_sequence = cpu_to_be32(commit_transaction->t_tid);
}
JBUFFER_TRACE(descriptor, "write commit block");
set_buffer_dirty(bh);
- if (journal->j_flags & JFS_BARRIER) {
+ if (journal->j_flags & JBD2_BARRIER) {
set_buffer_ordered(bh);
barrier_done = 1;
}
@@ -145,7 +145,7 @@
"disabling barriers\n",
bdevname(journal->j_dev, b));
spin_lock(&journal->j_state_lock);
- journal->j_flags &= ~JFS_BARRIER;
+ journal->j_flags &= ~JBD2_BARRIER;
spin_unlock(&journal->j_state_lock);
/* And try again, without the barrier */
@@ -155,7 +155,7 @@
ret = sync_dirty_buffer(bh);
}
put_bh(bh); /* One for getblk() */
- journal_put_journal_head(descriptor);
+ jbd2_journal_put_journal_head(descriptor);
return (ret == -EIO);
}
@@ -239,7 +239,7 @@
if (locked && test_clear_buffer_dirty(bh)) {
BUFFER_TRACE(bh, "needs writeout, adding to array");
wbuf[bufs++] = bh;
- __journal_file_buffer(jh, commit_transaction,
+ __jbd2_journal_file_buffer(jh, commit_transaction,
BJ_Locked);
jbd_unlock_bh_state(bh);
if (bufs == journal->j_wbufsize) {
@@ -251,13 +251,13 @@
}
else {
BUFFER_TRACE(bh, "writeout complete: unfile");
- __journal_unfile_buffer(jh);
+ __jbd2_journal_unfile_buffer(jh);
jbd_unlock_bh_state(bh);
if (locked)
unlock_buffer(bh);
- journal_remove_journal_head(bh);
+ jbd2_journal_remove_journal_head(bh);
/* Once for our safety reference, once for
- * journal_remove_journal_head() */
+ * jbd2_journal_remove_journal_head() */
put_bh(bh);
put_bh(bh);
}
@@ -272,12 +272,12 @@
}
/*
- * journal_commit_transaction
+ * jbd2_journal_commit_transaction
*
* The primary function for committing a transaction to the log. This
* function is called by the journal thread to begin a complete commit.
*/
-void journal_commit_transaction(journal_t *journal)
+void jbd2_journal_commit_transaction(journal_t *journal)
{
transaction_t *commit_transaction;
struct journal_head *jh, *new_jh, *descriptor;
@@ -305,10 +305,10 @@
spin_unlock(&journal->j_list_lock);
#endif
- /* Do we need to erase the effects of a prior journal_flush? */
- if (journal->j_flags & JFS_FLUSHED) {
+ /* Do we need to erase the effects of a prior jbd2_journal_flush? */
+ if (journal->j_flags & JBD2_FLUSHED) {
jbd_debug(3, "super block updated\n");
- journal_update_superblock(journal, 1);
+ jbd2_journal_update_superblock(journal, 1);
} else {
jbd_debug(3, "superblock not updated\n");
}
@@ -350,7 +350,7 @@
* BJ_Reserved buffers. Note, it is _not_ permissible to assume
* that there are no such buffers: if a large filesystem
* operation like a truncate needs to split itself over multiple
- * transactions, then it may try to do a journal_restart() while
+ * transactions, then it may try to do a jbd2_journal_restart() while
* there are still BJ_Reserved buffers outstanding. These must
* be released cleanly from the current transaction.
*
@@ -358,25 +358,25 @@
* again before modifying the buffer in the new transaction, but
* we do not require it to remember exactly which old buffers it
* has reserved. This is consistent with the existing behaviour
- * that multiple journal_get_write_access() calls to the same
+ * that multiple jbd2_journal_get_write_access() calls to the same
* buffer are perfectly permissable.
*/
while (commit_transaction->t_reserved_list) {
jh = commit_transaction->t_reserved_list;
JBUFFER_TRACE(jh, "reserved, unused: refile");
/*
- * A journal_get_undo_access()+journal_release_buffer() may
+ * A jbd2_journal_get_undo_access()+jbd2_journal_release_buffer() may
* leave undo-committed data.
*/
if (jh->b_committed_data) {
struct buffer_head *bh = jh2bh(jh);
jbd_lock_bh_state(bh);
- jbd_slab_free(jh->b_committed_data, bh->b_size);
+ jbd2_slab_free(jh->b_committed_data, bh->b_size);
jh->b_committed_data = NULL;
jbd_unlock_bh_state(bh);
}
- journal_refile_buffer(journal, jh);
+ jbd2_journal_refile_buffer(journal, jh);
}
/*
@@ -385,7 +385,7 @@
* frees some memory
*/
spin_lock(&journal->j_list_lock);
- __journal_clean_checkpoint_list(journal);
+ __jbd2_journal_clean_checkpoint_list(journal);
spin_unlock(&journal->j_list_lock);
jbd_debug (3, "JBD: commit phase 1\n");
@@ -393,7 +393,7 @@
/*
* Switch to a new revoke table.
*/
- journal_switch_revoke_table(journal);
+ jbd2_journal_switch_revoke_table(journal);
commit_transaction->t_state = T_FLUSH;
journal->j_committing_transaction = commit_transaction;
@@ -450,9 +450,9 @@
continue;
}
if (buffer_jbd(bh) && jh->b_jlist == BJ_Locked) {
- __journal_unfile_buffer(jh);
+ __jbd2_journal_unfile_buffer(jh);
jbd_unlock_bh_state(bh);
- journal_remove_journal_head(bh);
+ jbd2_journal_remove_journal_head(bh);
put_bh(bh);
} else {
jbd_unlock_bh_state(bh);
@@ -463,9 +463,9 @@
spin_unlock(&journal->j_list_lock);
if (err)
- __journal_abort_hard(journal);
+ __jbd2_journal_abort_hard(journal);
- journal_write_revoke_records(journal, commit_transaction);
+ jbd2_journal_write_revoke_records(journal, commit_transaction);
jbd_debug(3, "JBD: commit phase 2\n");
@@ -499,7 +499,7 @@
if (is_journal_aborted(journal)) {
JBUFFER_TRACE(jh, "journal is aborting: refile");
- journal_refile_buffer(journal, jh);
+ jbd2_journal_refile_buffer(journal, jh);
/* If that was the last one, we need to clean up
* any descriptor buffers which may have been
* already allocated, even if we are now
@@ -519,9 +519,9 @@
jbd_debug(4, "JBD: get descriptor\n");
- descriptor = journal_get_descriptor_buffer(journal);
+ descriptor = jbd2_journal_get_descriptor_buffer(journal);
if (!descriptor) {
- __journal_abort_hard(journal);
+ __jbd2_journal_abort_hard(journal);
continue;
}
@@ -529,8 +529,8 @@
jbd_debug(4, "JBD: got buffer %llu (%p)\n",
(unsigned long long)bh->b_blocknr, bh->b_data);
header = (journal_header_t *)&bh->b_data[0];
- header->h_magic = cpu_to_be32(JFS_MAGIC_NUMBER);
- header->h_blocktype = cpu_to_be32(JFS_DESCRIPTOR_BLOCK);
+ header->h_magic = cpu_to_be32(JBD2_MAGIC_NUMBER);
+ header->h_blocktype = cpu_to_be32(JBD2_DESCRIPTOR_BLOCK);
header->h_sequence = cpu_to_be32(commit_transaction->t_tid);
tagp = &bh->b_data[sizeof(journal_header_t)];
@@ -543,25 +543,25 @@
/* Record it so that we can wait for IO
completion later */
BUFFER_TRACE(bh, "ph3: file as descriptor");
- journal_file_buffer(descriptor, commit_transaction,
+ jbd2_journal_file_buffer(descriptor, commit_transaction,
BJ_LogCtl);
}
/* Where is the buffer to be written? */
- err = journal_next_log_block(journal, &blocknr);
+ err = jbd2_journal_next_log_block(journal, &blocknr);
/* If the block mapping failed, just abandon the buffer
and repeat this loop: we'll fall into the
refile-on-abort condition above. */
if (err) {
- __journal_abort_hard(journal);
+ __jbd2_journal_abort_hard(journal);
continue;
}
/*
* start_this_handle() uses t_outstanding_credits to determine
* the free space in the log, but this counter is changed
- * by journal_next_log_block() also.
+ * by jbd2_journal_next_log_block() also.
*/
commit_transaction->t_outstanding_credits--;
@@ -576,13 +576,13 @@
set_bit(BH_JWrite, &jh2bh(jh)->b_state);
/*
- * akpm: journal_write_metadata_buffer() sets
+ * akpm: jbd2_journal_write_metadata_buffer() sets
* new_bh->b_transaction to commit_transaction.
* We need to clean this up before we release new_bh
* (which is of type BJ_IO)
*/
JBUFFER_TRACE(jh, "ph3: write metadata");
- flags = journal_write_metadata_buffer(commit_transaction,
+ flags = jbd2_journal_write_metadata_buffer(commit_transaction,
jh, &new_jh, blocknr);
set_bit(BH_JWrite, &jh2bh(new_jh)->b_state);
wbuf[bufs++] = jh2bh(new_jh);
@@ -592,9 +592,9 @@
tag_flag = 0;
if (flags & 1)
- tag_flag |= JFS_FLAG_ESCAPE;
+ tag_flag |= JBD2_FLAG_ESCAPE;
if (!first_tag)
- tag_flag |= JFS_FLAG_SAME_UUID;
+ tag_flag |= JBD2_FLAG_SAME_UUID;
tag = (journal_block_tag_t *) tagp;
tag->t_blocknr = cpu_to_be32(jh2bh(jh)->b_blocknr);
@@ -622,7 +622,7 @@
submitting the IOs. "tag" still points to
the last tag we set up. */
- tag->t_flags |= cpu_to_be32(JFS_FLAG_LAST_TAG);
+ tag->t_flags |= cpu_to_be32(JBD2_FLAG_LAST_TAG);
start_journal_io:
for (i = 0; i < bufs; i++) {
@@ -678,14 +678,14 @@
clear_buffer_jwrite(bh);
JBUFFER_TRACE(jh, "ph4: unfile after journal write");
- journal_unfile_buffer(journal, jh);
+ jbd2_journal_unfile_buffer(journal, jh);
/*
* ->t_iobuf_list should contain only dummy buffer_heads
- * which were created by journal_write_metadata_buffer().
+ * which were created by jbd2_journal_write_metadata_buffer().
*/
BUFFER_TRACE(bh, "dumping temporary bh");
- journal_put_journal_head(jh);
+ jbd2_journal_put_journal_head(jh);
__brelse(bh);
J_ASSERT_BH(bh, atomic_read(&bh->b_count) == 0);
free_buffer_head(bh);
@@ -702,7 +702,7 @@
we finally commit, we can do any checkpointing
required. */
JBUFFER_TRACE(jh, "file as BJ_Forget");
- journal_file_buffer(jh, commit_transaction, BJ_Forget);
+ jbd2_journal_file_buffer(jh, commit_transaction, BJ_Forget);
/* Wake up any transactions which were waiting for this
IO to complete */
wake_up_bit(&bh->b_state, BH_Unshadow);
@@ -733,8 +733,8 @@
BUFFER_TRACE(bh, "ph5: control buffer writeout done: unfile");
clear_buffer_jwrite(bh);
- journal_unfile_buffer(journal, jh);
- journal_put_journal_head(jh);
+ jbd2_journal_unfile_buffer(journal, jh);
+ jbd2_journal_put_journal_head(jh);
__brelse(bh); /* One for getblk */
/* AKPM: bforget here */
}
@@ -745,7 +745,7 @@
err = -EIO;
if (err)
- __journal_abort_hard(journal);
+ __jbd2_journal_abort_hard(journal);
/* End of a transaction! Finally, we can do checkpoint
processing: any buffers committed as a result of this
@@ -789,14 +789,14 @@
* Otherwise, we can just throw away the frozen data now.
*/
if (jh->b_committed_data) {
- jbd_slab_free(jh->b_committed_data, bh->b_size);
+ jbd2_slab_free(jh->b_committed_data, bh->b_size);
jh->b_committed_data = NULL;
if (jh->b_frozen_data) {
jh->b_committed_data = jh->b_frozen_data;
jh->b_frozen_data = NULL;
}
} else if (jh->b_frozen_data) {
- jbd_slab_free(jh->b_frozen_data, bh->b_size);
+ jbd2_slab_free(jh->b_frozen_data, bh->b_size);
jh->b_frozen_data = NULL;
}
@@ -804,12 +804,12 @@
cp_transaction = jh->b_cp_transaction;
if (cp_transaction) {
JBUFFER_TRACE(jh, "remove from old cp transaction");
- __journal_remove_checkpoint(jh);
+ __jbd2_journal_remove_checkpoint(jh);
}
/* Only re-checkpoint the buffer_head if it is marked
* dirty. If the buffer was added to the BJ_Forget list
- * by journal_forget, it may no longer be dirty and
+ * by jbd2_journal_forget, it may no longer be dirty and
* there's no point in keeping a checkpoint record for
* it. */
@@ -828,9 +828,9 @@
if (buffer_jbddirty(bh)) {
JBUFFER_TRACE(jh, "add to new checkpointing trans");
- __journal_insert_checkpoint(jh, commit_transaction);
+ __jbd2_journal_insert_checkpoint(jh, commit_transaction);
JBUFFER_TRACE(jh, "refile for checkpoint writeback");
- __journal_refile_buffer(jh);
+ __jbd2_journal_refile_buffer(jh);
jbd_unlock_bh_state(bh);
} else {
J_ASSERT_BH(bh, !buffer_dirty(bh));
@@ -842,11 +842,11 @@
* disk and before we process the buffer on BJ_Forget
* list. */
JBUFFER_TRACE(jh, "refile or unfile freed buffer");
- __journal_refile_buffer(jh);
+ __jbd2_journal_refile_buffer(jh);
if (!jh->b_transaction) {
jbd_unlock_bh_state(bh);
/* needs a brelse */
- journal_remove_journal_head(bh);
+ jbd2_journal_remove_journal_head(bh);
release_buffer_page(bh);
} else
jbd_unlock_bh_state(bh);
@@ -856,9 +856,9 @@
spin_unlock(&journal->j_list_lock);
/*
* This is a bit sleazy. We borrow j_list_lock to protect
- * journal->j_committing_transaction in __journal_remove_checkpoint.
- * Really, __journal_remove_checkpoint should be using j_state_lock but
- * it's a bit hassle to hold that across __journal_remove_checkpoint
+ * journal->j_committing_transaction in __jbd2_journal_remove_checkpoint.
+ * Really, __jbd2_journal_remove_checkpoint should be using j_state_lock but
+ * it's a bit hassle to hold that across __jbd2_journal_remove_checkpoint
*/
spin_lock(&journal->j_state_lock);
spin_lock(&journal->j_list_lock);
@@ -885,7 +885,7 @@
spin_unlock(&journal->j_state_lock);
if (commit_transaction->t_checkpoint_list == NULL) {
- __journal_drop_transaction(journal, commit_transaction);
+ __jbd2_journal_drop_transaction(journal, commit_transaction);
} else {
if (journal->j_checkpoint_transactions == NULL) {
journal->j_checkpoint_transactions = commit_transaction;