[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/journal.c b/fs/jbd2/journal.c
index c518dd8..3fbbba2 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -1,5 +1,5 @@
/*
- * linux/fs/jbd/journal.c
+ * linux/fs/jbd2/journal.c
*
* Written by Stephen C. Tweedie <sct@redhat.com>, 1998
*
@@ -25,7 +25,7 @@
#include <linux/module.h>
#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/smp_lock.h>
@@ -40,51 +40,51 @@
#include <asm/uaccess.h>
#include <asm/page.h>
-EXPORT_SYMBOL(journal_start);
-EXPORT_SYMBOL(journal_restart);
-EXPORT_SYMBOL(journal_extend);
-EXPORT_SYMBOL(journal_stop);
-EXPORT_SYMBOL(journal_lock_updates);
-EXPORT_SYMBOL(journal_unlock_updates);
-EXPORT_SYMBOL(journal_get_write_access);
-EXPORT_SYMBOL(journal_get_create_access);
-EXPORT_SYMBOL(journal_get_undo_access);
-EXPORT_SYMBOL(journal_dirty_data);
-EXPORT_SYMBOL(journal_dirty_metadata);
-EXPORT_SYMBOL(journal_release_buffer);
-EXPORT_SYMBOL(journal_forget);
+EXPORT_SYMBOL(jbd2_journal_start);
+EXPORT_SYMBOL(jbd2_journal_restart);
+EXPORT_SYMBOL(jbd2_journal_extend);
+EXPORT_SYMBOL(jbd2_journal_stop);
+EXPORT_SYMBOL(jbd2_journal_lock_updates);
+EXPORT_SYMBOL(jbd2_journal_unlock_updates);
+EXPORT_SYMBOL(jbd2_journal_get_write_access);
+EXPORT_SYMBOL(jbd2_journal_get_create_access);
+EXPORT_SYMBOL(jbd2_journal_get_undo_access);
+EXPORT_SYMBOL(jbd2_journal_dirty_data);
+EXPORT_SYMBOL(jbd2_journal_dirty_metadata);
+EXPORT_SYMBOL(jbd2_journal_release_buffer);
+EXPORT_SYMBOL(jbd2_journal_forget);
#if 0
EXPORT_SYMBOL(journal_sync_buffer);
#endif
-EXPORT_SYMBOL(journal_flush);
-EXPORT_SYMBOL(journal_revoke);
+EXPORT_SYMBOL(jbd2_journal_flush);
+EXPORT_SYMBOL(jbd2_journal_revoke);
-EXPORT_SYMBOL(journal_init_dev);
-EXPORT_SYMBOL(journal_init_inode);
-EXPORT_SYMBOL(journal_update_format);
-EXPORT_SYMBOL(journal_check_used_features);
-EXPORT_SYMBOL(journal_check_available_features);
-EXPORT_SYMBOL(journal_set_features);
-EXPORT_SYMBOL(journal_create);
-EXPORT_SYMBOL(journal_load);
-EXPORT_SYMBOL(journal_destroy);
-EXPORT_SYMBOL(journal_update_superblock);
-EXPORT_SYMBOL(journal_abort);
-EXPORT_SYMBOL(journal_errno);
-EXPORT_SYMBOL(journal_ack_err);
-EXPORT_SYMBOL(journal_clear_err);
-EXPORT_SYMBOL(log_wait_commit);
-EXPORT_SYMBOL(journal_start_commit);
-EXPORT_SYMBOL(journal_force_commit_nested);
-EXPORT_SYMBOL(journal_wipe);
-EXPORT_SYMBOL(journal_blocks_per_page);
-EXPORT_SYMBOL(journal_invalidatepage);
-EXPORT_SYMBOL(journal_try_to_free_buffers);
-EXPORT_SYMBOL(journal_force_commit);
+EXPORT_SYMBOL(jbd2_journal_init_dev);
+EXPORT_SYMBOL(jbd2_journal_init_inode);
+EXPORT_SYMBOL(jbd2_journal_update_format);
+EXPORT_SYMBOL(jbd2_journal_check_used_features);
+EXPORT_SYMBOL(jbd2_journal_check_available_features);
+EXPORT_SYMBOL(jbd2_journal_set_features);
+EXPORT_SYMBOL(jbd2_journal_create);
+EXPORT_SYMBOL(jbd2_journal_load);
+EXPORT_SYMBOL(jbd2_journal_destroy);
+EXPORT_SYMBOL(jbd2_journal_update_superblock);
+EXPORT_SYMBOL(jbd2_journal_abort);
+EXPORT_SYMBOL(jbd2_journal_errno);
+EXPORT_SYMBOL(jbd2_journal_ack_err);
+EXPORT_SYMBOL(jbd2_journal_clear_err);
+EXPORT_SYMBOL(jbd2_log_wait_commit);
+EXPORT_SYMBOL(jbd2_journal_start_commit);
+EXPORT_SYMBOL(jbd2_journal_force_commit_nested);
+EXPORT_SYMBOL(jbd2_journal_wipe);
+EXPORT_SYMBOL(jbd2_journal_blocks_per_page);
+EXPORT_SYMBOL(jbd2_journal_invalidatepage);
+EXPORT_SYMBOL(jbd2_journal_try_to_free_buffers);
+EXPORT_SYMBOL(jbd2_journal_force_commit);
static int journal_convert_superblock_v1(journal_t *, journal_superblock_t *);
static void __journal_abort_soft (journal_t *journal, int errno);
-static int journal_create_jbd_slab(size_t slab_size);
+static int jbd2_journal_create_jbd_slab(size_t slab_size);
/*
* Helper function used to manage commit timeouts
@@ -98,7 +98,7 @@
}
/*
- * kjournald: The main thread function used to manage a logging device
+ * kjournald2: The main thread function used to manage a logging device
* journal.
*
* This kernel thread is responsible for two things:
@@ -113,7 +113,7 @@
* known as checkpointing, and this thread is responsible for that job.
*/
-static int kjournald(void *arg)
+static int kjournald2(void *arg)
{
journal_t *journal = arg;
transaction_t *transaction;
@@ -129,7 +129,7 @@
journal->j_task = current;
wake_up(&journal->j_wait_done_commit);
- printk(KERN_INFO "kjournald starting. Commit interval %ld seconds\n",
+ printk(KERN_INFO "kjournald2 starting. Commit interval %ld seconds\n",
journal->j_commit_interval / HZ);
/*
@@ -138,7 +138,7 @@
spin_lock(&journal->j_state_lock);
loop:
- if (journal->j_flags & JFS_UNMOUNT)
+ if (journal->j_flags & JBD2_UNMOUNT)
goto end_loop;
jbd_debug(1, "commit_sequence=%d, commit_request=%d\n",
@@ -148,7 +148,7 @@
jbd_debug(1, "OK, requests differ\n");
spin_unlock(&journal->j_state_lock);
del_timer_sync(&journal->j_commit_timer);
- journal_commit_transaction(journal);
+ jbd2_journal_commit_transaction(journal);
spin_lock(&journal->j_state_lock);
goto loop;
}
@@ -160,7 +160,7 @@
* good idea, because that depends on threads that may
* be already stopped.
*/
- jbd_debug(1, "Now suspending kjournald\n");
+ jbd_debug(1, "Now suspending kjournald2\n");
spin_unlock(&journal->j_state_lock);
refrigerator();
spin_lock(&journal->j_state_lock);
@@ -180,7 +180,7 @@
if (transaction && time_after_eq(jiffies,
transaction->t_expires))
should_sleep = 0;
- if (journal->j_flags & JFS_UNMOUNT)
+ if (journal->j_flags & JBD2_UNMOUNT)
should_sleep = 0;
if (should_sleep) {
spin_unlock(&journal->j_state_lock);
@@ -190,7 +190,7 @@
finish_wait(&journal->j_wait_commit, &wait);
}
- jbd_debug(1, "kjournald wakes\n");
+ jbd_debug(1, "kjournald2 wakes\n");
/*
* Were we woken up by a commit wakeup event?
@@ -211,16 +211,16 @@
return 0;
}
-static void journal_start_thread(journal_t *journal)
+static void jbd2_journal_start_thread(journal_t *journal)
{
- kthread_run(kjournald, journal, "kjournald");
+ kthread_run(kjournald2, journal, "kjournald2");
wait_event(journal->j_wait_done_commit, journal->j_task != 0);
}
static void journal_kill_thread(journal_t *journal)
{
spin_lock(&journal->j_state_lock);
- journal->j_flags |= JFS_UNMOUNT;
+ journal->j_flags |= JBD2_UNMOUNT;
while (journal->j_task) {
wake_up(&journal->j_wait_commit);
@@ -232,7 +232,7 @@
}
/*
- * journal_write_metadata_buffer: write a metadata buffer to the journal.
+ * jbd2_journal_write_metadata_buffer: write a metadata buffer to the journal.
*
* Writes a metadata buffer to a given disk block. The actual IO is not
* performed but a new buffer_head is constructed which labels the data
@@ -240,7 +240,7 @@
*
* Any magic-number escaping which needs to be done will cause a
* copy-out here. If the buffer happens to start with the
- * JFS_MAGIC_NUMBER, then we can't write it to the log directly: the
+ * JBD2_MAGIC_NUMBER, then we can't write it to the log directly: the
* magic number is only written to the log for descripter blocks. In
* this case, we copy the data and replace the first word with 0, and we
* return a result code which indicates that this buffer needs to be
@@ -268,7 +268,7 @@
* Bit 1 set == buffer copy-out performed (kfree the data after IO)
*/
-int journal_write_metadata_buffer(transaction_t *transaction,
+int jbd2_journal_write_metadata_buffer(transaction_t *transaction,
struct journal_head *jh_in,
struct journal_head **jh_out,
unsigned long blocknr)
@@ -316,7 +316,7 @@
* Check for escaping
*/
if (*((__be32 *)(mapped_data + new_offset)) ==
- cpu_to_be32(JFS_MAGIC_NUMBER)) {
+ cpu_to_be32(JBD2_MAGIC_NUMBER)) {
need_copy_out = 1;
do_escape = 1;
}
@@ -329,10 +329,10 @@
char *tmp;
jbd_unlock_bh_state(bh_in);
- tmp = jbd_slab_alloc(bh_in->b_size, GFP_NOFS);
+ tmp = jbd2_slab_alloc(bh_in->b_size, GFP_NOFS);
jbd_lock_bh_state(bh_in);
if (jh_in->b_frozen_data) {
- jbd_slab_free(tmp, bh_in->b_size);
+ jbd2_slab_free(tmp, bh_in->b_size);
goto repeat;
}
@@ -362,7 +362,7 @@
atomic_set(&new_bh->b_count, 1);
jbd_unlock_bh_state(bh_in);
- new_jh = journal_add_journal_head(new_bh); /* This sleeps */
+ new_jh = jbd2_journal_add_journal_head(new_bh); /* This sleeps */
set_bh_page(new_bh, new_page, new_offset);
new_jh->b_transaction = NULL;
@@ -380,9 +380,9 @@
* copying is moved to the transaction's shadow queue.
*/
JBUFFER_TRACE(jh_in, "file as BJ_Shadow");
- journal_file_buffer(jh_in, transaction, BJ_Shadow);
+ jbd2_journal_file_buffer(jh_in, transaction, BJ_Shadow);
JBUFFER_TRACE(new_jh, "file as BJ_IO");
- journal_file_buffer(new_jh, transaction, BJ_IO);
+ jbd2_journal_file_buffer(new_jh, transaction, BJ_IO);
return do_escape | (done_copy_out << 1);
}
@@ -393,14 +393,14 @@
*/
/*
- * __log_space_left: Return the number of free blocks left in the journal.
+ * __jbd2_log_space_left: Return the number of free blocks left in the journal.
*
* Called with the journal already locked.
*
* Called under j_state_lock
*/
-int __log_space_left(journal_t *journal)
+int __jbd2_log_space_left(journal_t *journal)
{
int left = journal->j_free;
@@ -424,7 +424,7 @@
/*
* Called under j_state_lock. Returns true if a transaction was started.
*/
-int __log_start_commit(journal_t *journal, tid_t target)
+int __jbd2_log_start_commit(journal_t *journal, tid_t target)
{
/*
* Are we already doing a recent enough commit?
@@ -445,12 +445,12 @@
return 0;
}
-int log_start_commit(journal_t *journal, tid_t tid)
+int jbd2_log_start_commit(journal_t *journal, tid_t tid)
{
int ret;
spin_lock(&journal->j_state_lock);
- ret = __log_start_commit(journal, tid);
+ ret = __jbd2_log_start_commit(journal, tid);
spin_unlock(&journal->j_state_lock);
return ret;
}
@@ -465,7 +465,7 @@
*
* Returns true if a transaction was started.
*/
-int journal_force_commit_nested(journal_t *journal)
+int jbd2_journal_force_commit_nested(journal_t *journal)
{
transaction_t *transaction = NULL;
tid_t tid;
@@ -473,7 +473,7 @@
spin_lock(&journal->j_state_lock);
if (journal->j_running_transaction && !current->journal_info) {
transaction = journal->j_running_transaction;
- __log_start_commit(journal, transaction->t_tid);
+ __jbd2_log_start_commit(journal, transaction->t_tid);
} else if (journal->j_committing_transaction)
transaction = journal->j_committing_transaction;
@@ -484,7 +484,7 @@
tid = transaction->t_tid;
spin_unlock(&journal->j_state_lock);
- log_wait_commit(journal, tid);
+ jbd2_log_wait_commit(journal, tid);
return 1;
}
@@ -492,7 +492,7 @@
* Start a commit of the current running transaction (if any). Returns true
* if a transaction was started, and fills its tid in at *ptid
*/
-int journal_start_commit(journal_t *journal, tid_t *ptid)
+int jbd2_journal_start_commit(journal_t *journal, tid_t *ptid)
{
int ret = 0;
@@ -500,7 +500,7 @@
if (journal->j_running_transaction) {
tid_t tid = journal->j_running_transaction->t_tid;
- ret = __log_start_commit(journal, tid);
+ ret = __jbd2_log_start_commit(journal, tid);
if (ret && ptid)
*ptid = tid;
} else if (journal->j_committing_transaction && ptid) {
@@ -519,7 +519,7 @@
* Wait for a specified commit to complete.
* The caller may not hold the journal lock.
*/
-int log_wait_commit(journal_t *journal, tid_t tid)
+int jbd2_log_wait_commit(journal_t *journal, tid_t tid)
{
int err = 0;
@@ -555,7 +555,7 @@
* Log buffer allocation routines:
*/
-int journal_next_log_block(journal_t *journal, unsigned long *retp)
+int jbd2_journal_next_log_block(journal_t *journal, unsigned long *retp)
{
unsigned long blocknr;
@@ -568,7 +568,7 @@
if (journal->j_head == journal->j_last)
journal->j_head = journal->j_first;
spin_unlock(&journal->j_state_lock);
- return journal_bmap(journal, blocknr, retp);
+ return jbd2_journal_bmap(journal, blocknr, retp);
}
/*
@@ -578,7 +578,7 @@
* this is a no-op. If needed, we can use j_blk_offset - everything is
* ready.
*/
-int journal_bmap(journal_t *journal, unsigned long blocknr,
+int jbd2_journal_bmap(journal_t *journal, unsigned long blocknr,
unsigned long *retp)
{
int err = 0;
@@ -610,18 +610,18 @@
* the journal without copying their contents, but for journal
* descriptor blocks we do need to generate bona fide buffers.
*
- * After the caller of journal_get_descriptor_buffer() has finished modifying
+ * After the caller of jbd2_journal_get_descriptor_buffer() has finished modifying
* the buffer's contents they really should run flush_dcache_page(bh->b_page).
* But we don't bother doing that, so there will be coherency problems with
* mmaps of blockdevs which hold live JBD-controlled filesystems.
*/
-struct journal_head *journal_get_descriptor_buffer(journal_t *journal)
+struct journal_head *jbd2_journal_get_descriptor_buffer(journal_t *journal)
{
struct buffer_head *bh;
unsigned long blocknr;
int err;
- err = journal_next_log_block(journal, &blocknr);
+ err = jbd2_journal_next_log_block(journal, &blocknr);
if (err)
return NULL;
@@ -632,7 +632,7 @@
set_buffer_uptodate(bh);
unlock_buffer(bh);
BUFFER_TRACE(bh, "return this buffer");
- return journal_add_journal_head(bh);
+ return jbd2_journal_add_journal_head(bh);
}
/*
@@ -669,10 +669,10 @@
journal->j_commit_interval = (HZ * JBD_DEFAULT_MAX_COMMIT_AGE);
/* The journal is marked for error until we succeed with recovery! */
- journal->j_flags = JFS_ABORT;
+ journal->j_flags = JBD2_ABORT;
/* Set up a default-sized revoke table for the new mount. */
- err = journal_init_revoke(journal, JOURNAL_REVOKE_DEFAULT_HASH);
+ err = jbd2_journal_init_revoke(journal, JOURNAL_REVOKE_DEFAULT_HASH);
if (err) {
kfree(journal);
goto fail;
@@ -682,7 +682,7 @@
return NULL;
}
-/* journal_init_dev and journal_init_inode:
+/* jbd2_journal_init_dev and jbd2_journal_init_inode:
*
* Create a journal structure assigned some fixed set of disk blocks to
* the journal. We don't actually touch those disk blocks yet, but we
@@ -692,7 +692,7 @@
*/
/**
- * journal_t * journal_init_dev() - creates an initialises a journal structure
+ * journal_t * jbd2_journal_init_dev() - creates an initialises a journal structure
* @bdev: Block device on which to create the journal
* @fs_dev: Device which hold journalled filesystem for this journal.
* @start: Block nr Start of journal.
@@ -700,11 +700,11 @@
* @blocksize: blocksize of journalling device
* @returns: a newly created journal_t *
*
- * journal_init_dev creates a journal which maps a fixed contiguous
+ * jbd2_journal_init_dev creates a journal which maps a fixed contiguous
* range of blocks on an arbitrary block device.
*
*/
-journal_t * journal_init_dev(struct block_device *bdev,
+journal_t * jbd2_journal_init_dev(struct block_device *bdev,
struct block_device *fs_dev,
int start, int len, int blocksize)
{
@@ -740,14 +740,14 @@
}
/**
- * journal_t * journal_init_inode () - creates a journal which maps to a inode.
+ * journal_t * jbd2_journal_init_inode () - creates a journal which maps to a inode.
* @inode: An inode to create the journal in
*
- * journal_init_inode creates a journal which maps an on-disk inode as
+ * jbd2_journal_init_inode creates a journal which maps an on-disk inode as
* the journal. The inode must exist already, must support bmap() and
* must have all data blocks preallocated.
*/
-journal_t * journal_init_inode (struct inode *inode)
+journal_t * jbd2_journal_init_inode (struct inode *inode)
{
struct buffer_head *bh;
journal_t *journal = journal_init_common();
@@ -780,7 +780,7 @@
return NULL;
}
- err = journal_bmap(journal, 0, &blocknr);
+ err = jbd2_journal_bmap(journal, 0, &blocknr);
/* If that failed, give up */
if (err) {
printk(KERN_ERR "%s: Cannnot locate journal superblock\n",
@@ -838,27 +838,27 @@
journal->j_max_transaction_buffers = journal->j_maxlen / 4;
/* Add the dynamic fields and write it to disk. */
- journal_update_superblock(journal, 1);
- journal_start_thread(journal);
+ jbd2_journal_update_superblock(journal, 1);
+ jbd2_journal_start_thread(journal);
return 0;
}
/**
- * int journal_create() - Initialise the new journal file
+ * int jbd2_journal_create() - Initialise the new journal file
* @journal: Journal to create. This structure must have been initialised
*
* Given a journal_t structure which tells us which disk blocks we can
* use, create a new journal superblock and initialise all of the
* journal fields from scratch.
**/
-int journal_create(journal_t *journal)
+int jbd2_journal_create(journal_t *journal)
{
unsigned long blocknr;
struct buffer_head *bh;
journal_superblock_t *sb;
int i, err;
- if (journal->j_maxlen < JFS_MIN_JOURNAL_BLOCKS) {
+ if (journal->j_maxlen < JBD2_MIN_JOURNAL_BLOCKS) {
printk (KERN_ERR "Journal length (%d blocks) too short.\n",
journal->j_maxlen);
journal_fail_superblock(journal);
@@ -876,10 +876,10 @@
}
/* Zero out the entire journal on disk. We cannot afford to
- have any blocks on disk beginning with JFS_MAGIC_NUMBER. */
+ have any blocks on disk beginning with JBD2_MAGIC_NUMBER. */
jbd_debug(1, "JBD: Zeroing out journal blocks...\n");
for (i = 0; i < journal->j_maxlen; i++) {
- err = journal_bmap(journal, i, &blocknr);
+ err = jbd2_journal_bmap(journal, i, &blocknr);
if (err)
return err;
bh = __getblk(journal->j_dev, blocknr, journal->j_blocksize);
@@ -899,8 +899,8 @@
/* OK, fill in the initial static fields in the new superblock */
sb = journal->j_superblock;
- sb->s_header.h_magic = cpu_to_be32(JFS_MAGIC_NUMBER);
- sb->s_header.h_blocktype = cpu_to_be32(JFS_SUPERBLOCK_V2);
+ sb->s_header.h_magic = cpu_to_be32(JBD2_MAGIC_NUMBER);
+ sb->s_header.h_blocktype = cpu_to_be32(JBD2_SUPERBLOCK_V2);
sb->s_blocksize = cpu_to_be32(journal->j_blocksize);
sb->s_maxlen = cpu_to_be32(journal->j_maxlen);
@@ -908,21 +908,21 @@
journal->j_transaction_sequence = 1;
- journal->j_flags &= ~JFS_ABORT;
+ journal->j_flags &= ~JBD2_ABORT;
journal->j_format_version = 2;
return journal_reset(journal);
}
/**
- * void journal_update_superblock() - Update journal sb on disk.
+ * void jbd2_journal_update_superblock() - Update journal sb on disk.
* @journal: The journal to update.
* @wait: Set to '0' if you don't want to wait for IO completion.
*
* Update a journal's dynamic superblock fields and write it to disk,
* optionally waiting for the IO to complete.
*/
-void journal_update_superblock(journal_t *journal, int wait)
+void jbd2_journal_update_superblock(journal_t *journal, int wait)
{
journal_superblock_t *sb = journal->j_superblock;
struct buffer_head *bh = journal->j_sb_buffer;
@@ -931,7 +931,7 @@
* As a special case, if the on-disk copy is already marked as needing
* no recovery (s_start == 0) and there are no outstanding transactions
* in the filesystem, then we can safely defer the superblock update
- * until the next commit by setting JFS_FLUSHED. This avoids
+ * until the next commit by setting JBD2_FLUSHED. This avoids
* attempting a write to a potential-readonly device.
*/
if (sb->s_start == 0 && journal->j_tail_sequence ==
@@ -966,9 +966,9 @@
spin_lock(&journal->j_state_lock);
if (sb->s_start)
- journal->j_flags &= ~JFS_FLUSHED;
+ journal->j_flags &= ~JBD2_FLUSHED;
else
- journal->j_flags |= JFS_FLUSHED;
+ journal->j_flags |= JBD2_FLUSHED;
spin_unlock(&journal->j_state_lock);
}
@@ -1000,17 +1000,17 @@
err = -EINVAL;
- if (sb->s_header.h_magic != cpu_to_be32(JFS_MAGIC_NUMBER) ||
+ if (sb->s_header.h_magic != cpu_to_be32(JBD2_MAGIC_NUMBER) ||
sb->s_blocksize != cpu_to_be32(journal->j_blocksize)) {
printk(KERN_WARNING "JBD: no valid journal superblock found\n");
goto out;
}
switch(be32_to_cpu(sb->s_header.h_blocktype)) {
- case JFS_SUPERBLOCK_V1:
+ case JBD2_SUPERBLOCK_V1:
journal->j_format_version = 1;
break;
- case JFS_SUPERBLOCK_V2:
+ case JBD2_SUPERBLOCK_V2:
journal->j_format_version = 2;
break;
default:
@@ -1059,14 +1059,14 @@
/**
- * int journal_load() - Read journal from disk.
+ * int jbd2_journal_load() - Read journal from disk.
* @journal: Journal to act on.
*
* Given a journal_t structure which tells us which disk blocks contain
* a journal, read the journal from disk to initialise the in-memory
* structures.
*/
-int journal_load(journal_t *journal)
+int jbd2_journal_load(journal_t *journal)
{
int err;
journal_superblock_t *sb;
@@ -1081,9 +1081,9 @@
if (journal->j_format_version >= 2) {
if ((sb->s_feature_ro_compat &
- ~cpu_to_be32(JFS_KNOWN_ROCOMPAT_FEATURES)) ||
+ ~cpu_to_be32(JBD2_KNOWN_ROCOMPAT_FEATURES)) ||
(sb->s_feature_incompat &
- ~cpu_to_be32(JFS_KNOWN_INCOMPAT_FEATURES))) {
+ ~cpu_to_be32(JBD2_KNOWN_INCOMPAT_FEATURES))) {
printk (KERN_WARNING
"JBD: Unrecognised features on journal\n");
return -EINVAL;
@@ -1093,13 +1093,13 @@
/*
* Create a slab for this blocksize
*/
- err = journal_create_jbd_slab(be32_to_cpu(sb->s_blocksize));
+ err = jbd2_journal_create_jbd_slab(be32_to_cpu(sb->s_blocksize));
if (err)
return err;
/* Let the recovery code check whether it needs to recover any
* data from the journal. */
- if (journal_recover(journal))
+ if (jbd2_journal_recover(journal))
goto recovery_error;
/* OK, we've finished with the dynamic journal bits:
@@ -1108,8 +1108,8 @@
if (journal_reset(journal))
goto recovery_error;
- journal->j_flags &= ~JFS_ABORT;
- journal->j_flags |= JFS_LOADED;
+ journal->j_flags &= ~JBD2_ABORT;
+ journal->j_flags |= JBD2_LOADED;
return 0;
recovery_error:
@@ -1118,20 +1118,20 @@
}
/**
- * void journal_destroy() - Release a journal_t structure.
+ * void jbd2_journal_destroy() - Release a journal_t structure.
* @journal: Journal to act on.
*
* Release a journal_t structure once it is no longer in use by the
* journaled object.
*/
-void journal_destroy(journal_t *journal)
+void jbd2_journal_destroy(journal_t *journal)
{
/* Wait for the commit thread to wake up and die. */
journal_kill_thread(journal);
/* Force a final log commit */
if (journal->j_running_transaction)
- journal_commit_transaction(journal);
+ jbd2_journal_commit_transaction(journal);
/* Force any old transactions to disk */
@@ -1139,7 +1139,7 @@
spin_lock(&journal->j_list_lock);
while (journal->j_checkpoint_transactions != NULL) {
spin_unlock(&journal->j_list_lock);
- log_do_checkpoint(journal);
+ jbd2_log_do_checkpoint(journal);
spin_lock(&journal->j_list_lock);
}
@@ -1152,21 +1152,21 @@
journal->j_tail = 0;
journal->j_tail_sequence = ++journal->j_transaction_sequence;
if (journal->j_sb_buffer) {
- journal_update_superblock(journal, 1);
+ jbd2_journal_update_superblock(journal, 1);
brelse(journal->j_sb_buffer);
}
if (journal->j_inode)
iput(journal->j_inode);
if (journal->j_revoke)
- journal_destroy_revoke(journal);
+ jbd2_journal_destroy_revoke(journal);
kfree(journal->j_wbuf);
kfree(journal);
}
/**
- *int journal_check_used_features () - Check if features specified are used.
+ *int jbd2_journal_check_used_features () - Check if features specified are used.
* @journal: Journal to check.
* @compat: bitmask of compatible features
* @ro: bitmask of features that force read-only mount
@@ -1176,7 +1176,7 @@
* features. Return true (non-zero) if it does.
**/
-int journal_check_used_features (journal_t *journal, unsigned long compat,
+int jbd2_journal_check_used_features (journal_t *journal, unsigned long compat,
unsigned long ro, unsigned long incompat)
{
journal_superblock_t *sb;
@@ -1197,7 +1197,7 @@
}
/**
- * int journal_check_available_features() - Check feature set in journalling layer
+ * int jbd2_journal_check_available_features() - Check feature set in journalling layer
* @journal: Journal to check.
* @compat: bitmask of compatible features
* @ro: bitmask of features that force read-only mount
@@ -1207,7 +1207,7 @@
* all of a given set of features on this journal. Return true
* (non-zero) if it can. */
-int journal_check_available_features (journal_t *journal, unsigned long compat,
+int jbd2_journal_check_available_features (journal_t *journal, unsigned long compat,
unsigned long ro, unsigned long incompat)
{
journal_superblock_t *sb;
@@ -1224,16 +1224,16 @@
if (journal->j_format_version != 2)
return 0;
- if ((compat & JFS_KNOWN_COMPAT_FEATURES) == compat &&
- (ro & JFS_KNOWN_ROCOMPAT_FEATURES) == ro &&
- (incompat & JFS_KNOWN_INCOMPAT_FEATURES) == incompat)
+ if ((compat & JBD2_KNOWN_COMPAT_FEATURES) == compat &&
+ (ro & JBD2_KNOWN_ROCOMPAT_FEATURES) == ro &&
+ (incompat & JBD2_KNOWN_INCOMPAT_FEATURES) == incompat)
return 1;
return 0;
}
/**
- * int journal_set_features () - Mark a given journal feature in the superblock
+ * int jbd2_journal_set_features () - Mark a given journal feature in the superblock
* @journal: Journal to act on.
* @compat: bitmask of compatible features
* @ro: bitmask of features that force read-only mount
@@ -1244,15 +1244,15 @@
*
*/
-int journal_set_features (journal_t *journal, unsigned long compat,
+int jbd2_journal_set_features (journal_t *journal, unsigned long compat,
unsigned long ro, unsigned long incompat)
{
journal_superblock_t *sb;
- if (journal_check_used_features(journal, compat, ro, incompat))
+ if (jbd2_journal_check_used_features(journal, compat, ro, incompat))
return 1;
- if (!journal_check_available_features(journal, compat, ro, incompat))
+ if (!jbd2_journal_check_available_features(journal, compat, ro, incompat))
return 0;
jbd_debug(1, "Setting new features 0x%lx/0x%lx/0x%lx\n",
@@ -1269,13 +1269,13 @@
/**
- * int journal_update_format () - Update on-disk journal structure.
+ * int jbd2_journal_update_format () - Update on-disk journal structure.
* @journal: Journal to act on.
*
* Given an initialised but unloaded journal struct, poke about in the
* on-disk structure to update it to the most recent supported version.
*/
-int journal_update_format (journal_t *journal)
+int jbd2_journal_update_format (journal_t *journal)
{
journal_superblock_t *sb;
int err;
@@ -1287,9 +1287,9 @@
sb = journal->j_superblock;
switch (be32_to_cpu(sb->s_header.h_blocktype)) {
- case JFS_SUPERBLOCK_V2:
+ case JBD2_SUPERBLOCK_V2:
return 0;
- case JFS_SUPERBLOCK_V1:
+ case JBD2_SUPERBLOCK_V1:
return journal_convert_superblock_v1(journal, sb);
default:
break;
@@ -1312,7 +1312,7 @@
memset(&sb->s_feature_compat, 0, blocksize-offset);
sb->s_nr_users = cpu_to_be32(1);
- sb->s_header.h_blocktype = cpu_to_be32(JFS_SUPERBLOCK_V2);
+ sb->s_header.h_blocktype = cpu_to_be32(JBD2_SUPERBLOCK_V2);
journal->j_format_version = 2;
bh = journal->j_sb_buffer;
@@ -1324,7 +1324,7 @@
/**
- * int journal_flush () - Flush journal
+ * int jbd2_journal_flush () - Flush journal
* @journal: Journal to act on.
*
* Flush all data for a given journal to disk and empty the journal.
@@ -1332,7 +1332,7 @@
* recovery does not need to happen on remount.
*/
-int journal_flush(journal_t *journal)
+int jbd2_journal_flush(journal_t *journal)
{
int err = 0;
transaction_t *transaction = NULL;
@@ -1343,7 +1343,7 @@
/* Force everything buffered to the log... */
if (journal->j_running_transaction) {
transaction = journal->j_running_transaction;
- __log_start_commit(journal, transaction->t_tid);
+ __jbd2_log_start_commit(journal, transaction->t_tid);
} else if (journal->j_committing_transaction)
transaction = journal->j_committing_transaction;
@@ -1352,7 +1352,7 @@
tid_t tid = transaction->t_tid;
spin_unlock(&journal->j_state_lock);
- log_wait_commit(journal, tid);
+ jbd2_log_wait_commit(journal, tid);
} else {
spin_unlock(&journal->j_state_lock);
}
@@ -1361,11 +1361,11 @@
spin_lock(&journal->j_list_lock);
while (!err && journal->j_checkpoint_transactions != NULL) {
spin_unlock(&journal->j_list_lock);
- err = log_do_checkpoint(journal);
+ err = jbd2_log_do_checkpoint(journal);
spin_lock(&journal->j_list_lock);
}
spin_unlock(&journal->j_list_lock);
- cleanup_journal_tail(journal);
+ jbd2_cleanup_journal_tail(journal);
/* Finally, mark the journal as really needing no recovery.
* This sets s_start==0 in the underlying superblock, which is
@@ -1376,7 +1376,7 @@
old_tail = journal->j_tail;
journal->j_tail = 0;
spin_unlock(&journal->j_state_lock);
- journal_update_superblock(journal, 1);
+ jbd2_journal_update_superblock(journal, 1);
spin_lock(&journal->j_state_lock);
journal->j_tail = old_tail;
@@ -1390,24 +1390,24 @@
}
/**
- * int journal_wipe() - Wipe journal contents
+ * int jbd2_journal_wipe() - Wipe journal contents
* @journal: Journal to act on.
* @write: flag (see below)
*
* Wipe out all of the contents of a journal, safely. This will produce
* a warning if the journal contains any valid recovery information.
- * Must be called between journal_init_*() and journal_load().
+ * Must be called between journal_init_*() and jbd2_journal_load().
*
* If 'write' is non-zero, then we wipe out the journal on disk; otherwise
* we merely suppress recovery.
*/
-int journal_wipe(journal_t *journal, int write)
+int jbd2_journal_wipe(journal_t *journal, int write)
{
journal_superblock_t *sb;
int err = 0;
- J_ASSERT (!(journal->j_flags & JFS_LOADED));
+ J_ASSERT (!(journal->j_flags & JBD2_LOADED));
err = load_superblock(journal);
if (err)
@@ -1421,9 +1421,9 @@
printk (KERN_WARNING "JBD: %s recovery information on journal\n",
write ? "Clearing" : "Ignoring");
- err = journal_skip_recovery(journal);
+ err = jbd2_journal_skip_recovery(journal);
if (write)
- journal_update_superblock(journal, 1);
+ jbd2_journal_update_superblock(journal, 1);
no_recovery:
return err;
@@ -1459,22 +1459,22 @@
* Aborts hard --- we mark the abort as occurred, but do _nothing_ else,
* and don't attempt to make any other journal updates.
*/
-void __journal_abort_hard(journal_t *journal)
+void __jbd2_journal_abort_hard(journal_t *journal)
{
transaction_t *transaction;
char b[BDEVNAME_SIZE];
- if (journal->j_flags & JFS_ABORT)
+ if (journal->j_flags & JBD2_ABORT)
return;
printk(KERN_ERR "Aborting journal on device %s.\n",
journal_dev_name(journal, b));
spin_lock(&journal->j_state_lock);
- journal->j_flags |= JFS_ABORT;
+ journal->j_flags |= JBD2_ABORT;
transaction = journal->j_running_transaction;
if (transaction)
- __log_start_commit(journal, transaction->t_tid);
+ __jbd2_log_start_commit(journal, transaction->t_tid);
spin_unlock(&journal->j_state_lock);
}
@@ -1482,20 +1482,20 @@
* but don't do any other IO. */
static void __journal_abort_soft (journal_t *journal, int errno)
{
- if (journal->j_flags & JFS_ABORT)
+ if (journal->j_flags & JBD2_ABORT)
return;
if (!journal->j_errno)
journal->j_errno = errno;
- __journal_abort_hard(journal);
+ __jbd2_journal_abort_hard(journal);
if (errno)
- journal_update_superblock(journal, 1);
+ jbd2_journal_update_superblock(journal, 1);
}
/**
- * void journal_abort () - Shutdown the journal immediately.
+ * void jbd2_journal_abort () - Shutdown the journal immediately.
* @journal: the journal to shutdown.
* @errno: an error number to record in the journal indicating
* the reason for the shutdown.
@@ -1504,7 +1504,7 @@
* journal (not of a single transaction). This operation cannot be
* undone without closing and reopening the journal.
*
- * The journal_abort function is intended to support higher level error
+ * The jbd2_journal_abort function is intended to support higher level error
* recovery mechanisms such as the ext2/ext3 remount-readonly error
* mode.
*
@@ -1520,13 +1520,13 @@
*
* Any attempt to get a new transaction handle on a journal which is in
* ABORT state will just result in an -EROFS error return. A
- * journal_stop on an existing handle will return -EIO if we have
+ * jbd2_journal_stop on an existing handle will return -EIO if we have
* entered abort state during the update.
*
* Recursive transactions are not disturbed by journal abort until the
- * final journal_stop, which will receive the -EIO error.
+ * final jbd2_journal_stop, which will receive the -EIO error.
*
- * Finally, the journal_abort call allows the caller to supply an errno
+ * Finally, the jbd2_journal_abort call allows the caller to supply an errno
* which will be recorded (if possible) in the journal superblock. This
* allows a client to record failure conditions in the middle of a
* transaction without having to complete the transaction to record the
@@ -1540,28 +1540,28 @@
*
*/
-void journal_abort(journal_t *journal, int errno)
+void jbd2_journal_abort(journal_t *journal, int errno)
{
__journal_abort_soft(journal, errno);
}
/**
- * int journal_errno () - returns the journal's error state.
+ * int jbd2_journal_errno () - returns the journal's error state.
* @journal: journal to examine.
*
- * This is the errno numbet set with journal_abort(), the last
+ * This is the errno numbet set with jbd2_journal_abort(), the last
* time the journal was mounted - if the journal was stopped
* without calling abort this will be 0.
*
* If the journal has been aborted on this mount time -EROFS will
* be returned.
*/
-int journal_errno(journal_t *journal)
+int jbd2_journal_errno(journal_t *journal)
{
int err;
spin_lock(&journal->j_state_lock);
- if (journal->j_flags & JFS_ABORT)
+ if (journal->j_flags & JBD2_ABORT)
err = -EROFS;
else
err = journal->j_errno;
@@ -1570,18 +1570,18 @@
}
/**
- * int journal_clear_err () - clears the journal's error state
+ * int jbd2_journal_clear_err () - clears the journal's error state
* @journal: journal to act on.
*
* An error must be cleared or Acked to take a FS out of readonly
* mode.
*/
-int journal_clear_err(journal_t *journal)
+int jbd2_journal_clear_err(journal_t *journal)
{
int err = 0;
spin_lock(&journal->j_state_lock);
- if (journal->j_flags & JFS_ABORT)
+ if (journal->j_flags & JBD2_ABORT)
err = -EROFS;
else
journal->j_errno = 0;
@@ -1590,21 +1590,21 @@
}
/**
- * void journal_ack_err() - Ack journal err.
+ * void jbd2_journal_ack_err() - Ack journal err.
* @journal: journal to act on.
*
* An error must be cleared or Acked to take a FS out of readonly
* mode.
*/
-void journal_ack_err(journal_t *journal)
+void jbd2_journal_ack_err(journal_t *journal)
{
spin_lock(&journal->j_state_lock);
if (journal->j_errno)
- journal->j_flags |= JFS_ACK_ERR;
+ journal->j_flags |= JBD2_ACK_ERR;
spin_unlock(&journal->j_state_lock);
}
-int journal_blocks_per_page(struct inode *inode)
+int jbd2_journal_blocks_per_page(struct inode *inode)
{
return 1 << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
}
@@ -1613,7 +1613,7 @@
* Simple support for retrying memory allocations. Introduced to help to
* debug different VM deadlock avoidance strategies.
*/
-void * __jbd_kmalloc (const char *where, size_t size, gfp_t flags, int retry)
+void * __jbd2_kmalloc (const char *where, size_t size, gfp_t flags, int retry)
{
return kmalloc(size, flags | (retry ? __GFP_NOFAIL : 0));
}
@@ -1634,7 +1634,7 @@
"jbd_1k", "jbd_2k", "jbd_4k", NULL, "jbd_8k"
};
-static void journal_destroy_jbd_slabs(void)
+static void jbd2_journal_destroy_jbd_slabs(void)
{
int i;
@@ -1645,7 +1645,7 @@
}
}
-static int journal_create_jbd_slab(size_t slab_size)
+static int jbd2_journal_create_jbd_slab(size_t slab_size)
{
int i = JBD_SLAB_INDEX(slab_size);
@@ -1671,7 +1671,7 @@
return 0;
}
-void * jbd_slab_alloc(size_t size, gfp_t flags)
+void * jbd2_slab_alloc(size_t size, gfp_t flags)
{
int idx;
@@ -1680,7 +1680,7 @@
return kmem_cache_alloc(jbd_slab[idx], flags | __GFP_NOFAIL);
}
-void jbd_slab_free(void *ptr, size_t size)
+void jbd2_slab_free(void *ptr, size_t size)
{
int idx;
@@ -1692,35 +1692,35 @@
/*
* Journal_head storage management
*/
-static kmem_cache_t *journal_head_cache;
+static kmem_cache_t *jbd2_journal_head_cache;
#ifdef CONFIG_JBD_DEBUG
static atomic_t nr_journal_heads = ATOMIC_INIT(0);
#endif
-static int journal_init_journal_head_cache(void)
+static int journal_init_jbd2_journal_head_cache(void)
{
int retval;
- J_ASSERT(journal_head_cache == 0);
- journal_head_cache = kmem_cache_create("journal_head",
+ J_ASSERT(jbd2_journal_head_cache == 0);
+ jbd2_journal_head_cache = kmem_cache_create("journal_head",
sizeof(struct journal_head),
0, /* offset */
0, /* flags */
NULL, /* ctor */
NULL); /* dtor */
retval = 0;
- if (journal_head_cache == 0) {
+ if (jbd2_journal_head_cache == 0) {
retval = -ENOMEM;
printk(KERN_EMERG "JBD: no memory for journal_head cache\n");
}
return retval;
}
-static void journal_destroy_journal_head_cache(void)
+static void jbd2_journal_destroy_jbd2_journal_head_cache(void)
{
- J_ASSERT(journal_head_cache != NULL);
- kmem_cache_destroy(journal_head_cache);
- journal_head_cache = NULL;
+ J_ASSERT(jbd2_journal_head_cache != NULL);
+ kmem_cache_destroy(jbd2_journal_head_cache);
+ jbd2_journal_head_cache = NULL;
}
/*
@@ -1734,7 +1734,7 @@
#ifdef CONFIG_JBD_DEBUG
atomic_inc(&nr_journal_heads);
#endif
- ret = kmem_cache_alloc(journal_head_cache, GFP_NOFS);
+ ret = kmem_cache_alloc(jbd2_journal_head_cache, GFP_NOFS);
if (ret == 0) {
jbd_debug(1, "out of memory for journal_head\n");
if (time_after(jiffies, last_warning + 5*HZ)) {
@@ -1744,7 +1744,7 @@
}
while (ret == 0) {
yield();
- ret = kmem_cache_alloc(journal_head_cache, GFP_NOFS);
+ ret = kmem_cache_alloc(jbd2_journal_head_cache, GFP_NOFS);
}
}
return ret;
@@ -1756,7 +1756,7 @@
atomic_dec(&nr_journal_heads);
memset(jh, JBD_POISON_FREE, sizeof(*jh));
#endif
- kmem_cache_free(journal_head_cache, jh);
+ kmem_cache_free(jbd2_journal_head_cache, jh);
}
/*
@@ -1775,22 +1775,22 @@
*
* A journal_head may be detached from its buffer_head when the journal_head's
* b_transaction, b_cp_transaction and b_next_transaction pointers are NULL.
- * Various places in JBD call journal_remove_journal_head() to indicate that the
+ * Various places in JBD call jbd2_journal_remove_journal_head() to indicate that the
* journal_head can be dropped if needed.
*
* Various places in the kernel want to attach a journal_head to a buffer_head
* _before_ attaching the journal_head to a transaction. To protect the
- * journal_head in this situation, journal_add_journal_head elevates the
+ * journal_head in this situation, jbd2_journal_add_journal_head elevates the
* journal_head's b_jcount refcount by one. The caller must call
- * journal_put_journal_head() to undo this.
+ * jbd2_journal_put_journal_head() to undo this.
*
* So the typical usage would be:
*
* (Attach a journal_head if needed. Increments b_jcount)
- * struct journal_head *jh = journal_add_journal_head(bh);
+ * struct journal_head *jh = jbd2_journal_add_journal_head(bh);
* ...
* jh->b_transaction = xxx;
- * journal_put_journal_head(jh);
+ * jbd2_journal_put_journal_head(jh);
*
* Now, the journal_head's b_jcount is zero, but it is safe from being released
* because it has a non-zero b_transaction.
@@ -1802,7 +1802,7 @@
* Doesn't need the journal lock.
* May sleep.
*/
-struct journal_head *journal_add_journal_head(struct buffer_head *bh)
+struct journal_head *jbd2_journal_add_journal_head(struct buffer_head *bh)
{
struct journal_head *jh;
struct journal_head *new_jh = NULL;
@@ -1845,7 +1845,7 @@
* Grab a ref against this buffer_head's journal_head. If it ended up not
* having a journal_head, return NULL
*/
-struct journal_head *journal_grab_journal_head(struct buffer_head *bh)
+struct journal_head *jbd2_journal_grab_journal_head(struct buffer_head *bh)
{
struct journal_head *jh = NULL;
@@ -1877,13 +1877,13 @@
printk(KERN_WARNING "%s: freeing "
"b_frozen_data\n",
__FUNCTION__);
- jbd_slab_free(jh->b_frozen_data, bh->b_size);
+ jbd2_slab_free(jh->b_frozen_data, bh->b_size);
}
if (jh->b_committed_data) {
printk(KERN_WARNING "%s: freeing "
"b_committed_data\n",
__FUNCTION__);
- jbd_slab_free(jh->b_committed_data, bh->b_size);
+ jbd2_slab_free(jh->b_committed_data, bh->b_size);
}
bh->b_private = NULL;
jh->b_bh = NULL; /* debug, really */
@@ -1897,7 +1897,7 @@
}
/*
- * journal_remove_journal_head(): if the buffer isn't attached to a transaction
+ * jbd2_journal_remove_journal_head(): if the buffer isn't attached to a transaction
* and has a zero b_jcount then remove and release its journal_head. If we did
* see that the buffer is not used by any transaction we also "logically"
* decrement ->b_count.
@@ -1905,11 +1905,11 @@
* We in fact take an additional increment on ->b_count as a convenience,
* because the caller usually wants to do additional things with the bh
* after calling here.
- * The caller of journal_remove_journal_head() *must* run __brelse(bh) at some
+ * The caller of jbd2_journal_remove_journal_head() *must* run __brelse(bh) at some
* time. Once the caller has run __brelse(), the buffer is eligible for
* reaping by try_to_free_buffers().
*/
-void journal_remove_journal_head(struct buffer_head *bh)
+void jbd2_journal_remove_journal_head(struct buffer_head *bh)
{
jbd_lock_bh_journal_head(bh);
__journal_remove_journal_head(bh);
@@ -1920,7 +1920,7 @@
* Drop a reference on the passed journal_head. If it fell to zero then try to
* release the journal_head from the buffer_head.
*/
-void journal_put_journal_head(struct journal_head *jh)
+void jbd2_journal_put_journal_head(struct journal_head *jh)
{
struct buffer_head *bh = jh2bh(jh);
@@ -1938,8 +1938,8 @@
* /proc tunables
*/
#if defined(CONFIG_JBD_DEBUG)
-int journal_enable_debug;
-EXPORT_SYMBOL(journal_enable_debug);
+int jbd2_journal_enable_debug;
+EXPORT_SYMBOL(jbd2_journal_enable_debug);
#endif
#if defined(CONFIG_JBD_DEBUG) && defined(CONFIG_PROC_FS)
@@ -1951,7 +1951,7 @@
{
int ret;
- ret = sprintf(page + off, "%d\n", journal_enable_debug);
+ ret = sprintf(page + off, "%d\n", jbd2_journal_enable_debug);
*eof = 1;
return ret;
}
@@ -1966,11 +1966,11 @@
if (copy_from_user(buf, buffer, count))
return -EFAULT;
buf[ARRAY_SIZE(buf) - 1] = '\0';
- journal_enable_debug = simple_strtoul(buf, NULL, 10);
+ jbd2_journal_enable_debug = simple_strtoul(buf, NULL, 10);
return count;
}
-#define JBD_PROC_NAME "sys/fs/jbd-debug"
+#define JBD_PROC_NAME "sys/fs/jbd2-debug"
static void __init create_jbd_proc_entry(void)
{
@@ -1982,7 +1982,7 @@
}
}
-static void __exit remove_jbd_proc_entry(void)
+static void __exit jbd2_remove_jbd_proc_entry(void)
{
if (proc_jbd_debug)
remove_proc_entry(JBD_PROC_NAME, NULL);
@@ -1991,31 +1991,31 @@
#else
#define create_jbd_proc_entry() do {} while (0)
-#define remove_jbd_proc_entry() do {} while (0)
+#define jbd2_remove_jbd_proc_entry() do {} while (0)
#endif
-kmem_cache_t *jbd_handle_cache;
+kmem_cache_t *jbd2_handle_cache;
static int __init journal_init_handle_cache(void)
{
- jbd_handle_cache = kmem_cache_create("journal_handle",
+ jbd2_handle_cache = kmem_cache_create("journal_handle",
sizeof(handle_t),
0, /* offset */
0, /* flags */
NULL, /* ctor */
NULL); /* dtor */
- if (jbd_handle_cache == NULL) {
+ if (jbd2_handle_cache == NULL) {
printk(KERN_EMERG "JBD: failed to create handle cache\n");
return -ENOMEM;
}
return 0;
}
-static void journal_destroy_handle_cache(void)
+static void jbd2_journal_destroy_handle_cache(void)
{
- if (jbd_handle_cache)
- kmem_cache_destroy(jbd_handle_cache);
+ if (jbd2_handle_cache)
+ kmem_cache_destroy(jbd2_handle_cache);
}
/*
@@ -2026,20 +2026,20 @@
{
int ret;
- ret = journal_init_revoke_caches();
+ ret = jbd2_journal_init_revoke_caches();
if (ret == 0)
- ret = journal_init_journal_head_cache();
+ ret = journal_init_jbd2_journal_head_cache();
if (ret == 0)
ret = journal_init_handle_cache();
return ret;
}
-static void journal_destroy_caches(void)
+static void jbd2_journal_destroy_caches(void)
{
- journal_destroy_revoke_caches();
- journal_destroy_journal_head_cache();
- journal_destroy_handle_cache();
- journal_destroy_jbd_slabs();
+ jbd2_journal_destroy_revoke_caches();
+ jbd2_journal_destroy_jbd2_journal_head_cache();
+ jbd2_journal_destroy_handle_cache();
+ jbd2_journal_destroy_jbd_slabs();
}
static int __init journal_init(void)
@@ -2050,7 +2050,7 @@
ret = journal_init_caches();
if (ret != 0)
- journal_destroy_caches();
+ jbd2_journal_destroy_caches();
create_jbd_proc_entry();
return ret;
}
@@ -2062,8 +2062,8 @@
if (n)
printk(KERN_EMERG "JBD: leaked %d journal_heads!\n", n);
#endif
- remove_jbd_proc_entry();
- journal_destroy_caches();
+ jbd2_remove_jbd_proc_entry();
+ jbd2_journal_destroy_caches();
}
MODULE_LICENSE("GPL");
