[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>

1 files changed, 61 insertions, 61 deletions

diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 10be51290a27..b1a4eafc1541 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 @@ static int journal_write_commit_record(journal_t *journal,
         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 @@ static int journal_write_commit_record(journal_t *journal,
         /* 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 @@ static int journal_write_commit_record(journal_t *journal,
                         "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 @@ static int journal_write_commit_record(journal_t *journal,
                 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 @@ write_out_data:
                 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 @@ write_out_data:
                 }
                 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 @@ write_out_data:
 }
 
 /*
- * 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 @@ void journal_commit_transaction(journal_t *journal)
         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 @@ void journal_commit_transaction(journal_t *journal)
          * 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 @@ void journal_commit_transaction(journal_t *journal)
          * 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 @@ void journal_commit_transaction(journal_t *journal)
          * 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 @@ void journal_commit_transaction(journal_t *journal)
         /*
          * 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 @@ void journal_commit_transaction(journal_t *journal)
                         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 @@ void journal_commit_transaction(journal_t *journal)
         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 @@ void journal_commit_transaction(journal_t *journal)
 
                 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 @@ void journal_commit_transaction(journal_t *journal)
 
                         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 @@ void journal_commit_transaction(journal_t *journal)
                         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 @@ void journal_commit_transaction(journal_t *journal)
                         /* 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 @@ void journal_commit_transaction(journal_t *journal)
 
                 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 @@ void journal_commit_transaction(journal_t *journal)
 
                 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 @@ void journal_commit_transaction(journal_t *journal)
                            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 @@ wait_for_iobuf:
                 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 @@ wait_for_iobuf:
                    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 @@ wait_for_iobuf:
 
                 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 @@ wait_for_iobuf:
                 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 @@ restart_loop:
                  * 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 @@ restart_loop:
                 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 @@ restart_loop:
 
                 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 @@ restart_loop:
                          * 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 @@ restart_loop:
         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 @@ restart_loop:
         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;