xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

[PATCH] jbd2: rename jbd2 symbols to avoid duplication of jbd symbols

Browse Source 
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>
This commit is contained in:
Mingming Cao
2006-10-11 01:20:59 -07:00
committed by Linus Torvalds
parent 470decc613
commit f7f4bccb72
9 changed files with 671 additions and 671 deletions
Download Patch File Download Diff File Expand all files Collapse all files

122
fs/jbd2/commit.c
View File

@@ -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;