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Diffstat (limited to 'fs/jbd2/revoke.c')
-rw-r--r--fs/jbd2/revoke.c146
1 files changed, 73 insertions, 73 deletions
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index c532429d8d9..2fccddc7aca 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -62,7 +62,7 @@
#else
#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/list.h>
@@ -70,14 +70,14 @@
#include <linux/init.h>
#endif
-static kmem_cache_t *revoke_record_cache;
-static kmem_cache_t *revoke_table_cache;
+static kmem_cache_t *jbd2_revoke_record_cache;
+static kmem_cache_t *jbd2_revoke_table_cache;
/* Each revoke record represents one single revoked block. During
journal replay, this involves recording the transaction ID of the
last transaction to revoke this block. */
-struct jbd_revoke_record_s
+struct jbd2_revoke_record_s
{
struct list_head hash;
tid_t sequence; /* Used for recovery only */
@@ -86,7 +86,7 @@ struct jbd_revoke_record_s
/* The revoke table is just a simple hash table of revoke records. */
-struct jbd_revoke_table_s
+struct jbd2_revoke_table_s
{
/* It is conceivable that we might want a larger hash table
* for recovery. Must be a power of two. */
@@ -99,7 +99,7 @@ struct jbd_revoke_table_s
#ifdef __KERNEL__
static void write_one_revoke_record(journal_t *, transaction_t *,
struct journal_head **, int *,
- struct jbd_revoke_record_s *);
+ struct jbd2_revoke_record_s *);
static void flush_descriptor(journal_t *, struct journal_head *, int);
#endif
@@ -108,7 +108,7 @@ static void flush_descriptor(journal_t *, struct journal_head *, int);
/* Borrowed from buffer.c: this is a tried and tested block hash function */
static inline int hash(journal_t *journal, unsigned long block)
{
- struct jbd_revoke_table_s *table = journal->j_revoke;
+ struct jbd2_revoke_table_s *table = journal->j_revoke;
int hash_shift = table->hash_shift;
return ((block << (hash_shift - 6)) ^
@@ -120,10 +120,10 @@ static int insert_revoke_hash(journal_t *journal, unsigned long blocknr,
tid_t seq)
{
struct list_head *hash_list;
- struct jbd_revoke_record_s *record;
+ struct jbd2_revoke_record_s *record;
repeat:
- record = kmem_cache_alloc(revoke_record_cache, GFP_NOFS);
+ record = kmem_cache_alloc(jbd2_revoke_record_cache, GFP_NOFS);
if (!record)
goto oom;
@@ -145,57 +145,57 @@ oom:
/* Find a revoke record in the journal's hash table. */
-static struct jbd_revoke_record_s *find_revoke_record(journal_t *journal,
+static struct jbd2_revoke_record_s *find_revoke_record(journal_t *journal,
unsigned long blocknr)
{
struct list_head *hash_list;
- struct jbd_revoke_record_s *record;
+ struct jbd2_revoke_record_s *record;
hash_list = &journal->j_revoke->hash_table[hash(journal, blocknr)];
spin_lock(&journal->j_revoke_lock);
- record = (struct jbd_revoke_record_s *) hash_list->next;
+ record = (struct jbd2_revoke_record_s *) hash_list->next;
while (&(record->hash) != hash_list) {
if (record->blocknr == blocknr) {
spin_unlock(&journal->j_revoke_lock);
return record;
}
- record = (struct jbd_revoke_record_s *) record->hash.next;
+ record = (struct jbd2_revoke_record_s *) record->hash.next;
}
spin_unlock(&journal->j_revoke_lock);
return NULL;
}
-int __init journal_init_revoke_caches(void)
+int __init jbd2_journal_init_revoke_caches(void)
{
- revoke_record_cache = kmem_cache_create("revoke_record",
- sizeof(struct jbd_revoke_record_s),
+ jbd2_revoke_record_cache = kmem_cache_create("revoke_record",
+ sizeof(struct jbd2_revoke_record_s),
0, SLAB_HWCACHE_ALIGN, NULL, NULL);
- if (revoke_record_cache == 0)
+ if (jbd2_revoke_record_cache == 0)
return -ENOMEM;
- revoke_table_cache = kmem_cache_create("revoke_table",
- sizeof(struct jbd_revoke_table_s),
+ jbd2_revoke_table_cache = kmem_cache_create("revoke_table",
+ sizeof(struct jbd2_revoke_table_s),
0, 0, NULL, NULL);
- if (revoke_table_cache == 0) {
- kmem_cache_destroy(revoke_record_cache);
- revoke_record_cache = NULL;
+ if (jbd2_revoke_table_cache == 0) {
+ kmem_cache_destroy(jbd2_revoke_record_cache);
+ jbd2_revoke_record_cache = NULL;
return -ENOMEM;
}
return 0;
}
-void journal_destroy_revoke_caches(void)
+void jbd2_journal_destroy_revoke_caches(void)
{
- kmem_cache_destroy(revoke_record_cache);
- revoke_record_cache = NULL;
- kmem_cache_destroy(revoke_table_cache);
- revoke_table_cache = NULL;
+ kmem_cache_destroy(jbd2_revoke_record_cache);
+ jbd2_revoke_record_cache = NULL;
+ kmem_cache_destroy(jbd2_revoke_table_cache);
+ jbd2_revoke_table_cache = NULL;
}
/* Initialise the revoke table for a given journal to a given size. */
-int journal_init_revoke(journal_t *journal, int hash_size)
+int jbd2_journal_init_revoke(journal_t *journal, int hash_size)
{
int shift, tmp;
@@ -206,7 +206,7 @@ int journal_init_revoke(journal_t *journal, int hash_size)
while((tmp >>= 1UL) != 0UL)
shift++;
- journal->j_revoke_table[0] = kmem_cache_alloc(revoke_table_cache, GFP_KERNEL);
+ journal->j_revoke_table[0] = kmem_cache_alloc(jbd2_revoke_table_cache, GFP_KERNEL);
if (!journal->j_revoke_table[0])
return -ENOMEM;
journal->j_revoke = journal->j_revoke_table[0];
@@ -221,7 +221,7 @@ int journal_init_revoke(journal_t *journal, int hash_size)
journal->j_revoke->hash_table =
kmalloc(hash_size * sizeof(struct list_head), GFP_KERNEL);
if (!journal->j_revoke->hash_table) {
- kmem_cache_free(revoke_table_cache, journal->j_revoke_table[0]);
+ kmem_cache_free(jbd2_revoke_table_cache, journal->j_revoke_table[0]);
journal->j_revoke = NULL;
return -ENOMEM;
}
@@ -229,10 +229,10 @@ int journal_init_revoke(journal_t *journal, int hash_size)
for (tmp = 0; tmp < hash_size; tmp++)
INIT_LIST_HEAD(&journal->j_revoke->hash_table[tmp]);
- journal->j_revoke_table[1] = kmem_cache_alloc(revoke_table_cache, GFP_KERNEL);
+ journal->j_revoke_table[1] = kmem_cache_alloc(jbd2_revoke_table_cache, GFP_KERNEL);
if (!journal->j_revoke_table[1]) {
kfree(journal->j_revoke_table[0]->hash_table);
- kmem_cache_free(revoke_table_cache, journal->j_revoke_table[0]);
+ kmem_cache_free(jbd2_revoke_table_cache, journal->j_revoke_table[0]);
return -ENOMEM;
}
@@ -249,8 +249,8 @@ int journal_init_revoke(journal_t *journal, int hash_size)
kmalloc(hash_size * sizeof(struct list_head), GFP_KERNEL);
if (!journal->j_revoke->hash_table) {
kfree(journal->j_revoke_table[0]->hash_table);
- kmem_cache_free(revoke_table_cache, journal->j_revoke_table[0]);
- kmem_cache_free(revoke_table_cache, journal->j_revoke_table[1]);
+ kmem_cache_free(jbd2_revoke_table_cache, journal->j_revoke_table[0]);
+ kmem_cache_free(jbd2_revoke_table_cache, journal->j_revoke_table[1]);
journal->j_revoke = NULL;
return -ENOMEM;
}
@@ -265,9 +265,9 @@ int journal_init_revoke(journal_t *journal, int hash_size)
/* Destoy a journal's revoke table. The table must already be empty! */
-void journal_destroy_revoke(journal_t *journal)
+void jbd2_journal_destroy_revoke(journal_t *journal)
{
- struct jbd_revoke_table_s *table;
+ struct jbd2_revoke_table_s *table;
struct list_head *hash_list;
int i;
@@ -281,7 +281,7 @@ void journal_destroy_revoke(journal_t *journal)
}
kfree(table->hash_table);
- kmem_cache_free(revoke_table_cache, table);
+ kmem_cache_free(jbd2_revoke_table_cache, table);
journal->j_revoke = NULL;
table = journal->j_revoke_table[1];
@@ -294,7 +294,7 @@ void journal_destroy_revoke(journal_t *journal)
}
kfree(table->hash_table);
- kmem_cache_free(revoke_table_cache, table);
+ kmem_cache_free(jbd2_revoke_table_cache, table);
journal->j_revoke = NULL;
}
@@ -302,7 +302,7 @@ void journal_destroy_revoke(journal_t *journal)
#ifdef __KERNEL__
/*
- * journal_revoke: revoke a given buffer_head from the journal. This
+ * jbd2_journal_revoke: revoke a given buffer_head from the journal. This
* prevents the block from being replayed during recovery if we take a
* crash after this current transaction commits. Any subsequent
* metadata writes of the buffer in this transaction cancel the
@@ -314,18 +314,18 @@ void journal_destroy_revoke(journal_t *journal)
* revoke before clearing the block bitmap when we are deleting
* metadata.
*
- * Revoke performs a journal_forget on any buffer_head passed in as a
+ * Revoke performs a jbd2_journal_forget on any buffer_head passed in as a
* parameter, but does _not_ forget the buffer_head if the bh was only
* found implicitly.
*
* bh_in may not be a journalled buffer - it may have come off
* the hash tables without an attached journal_head.
*
- * If bh_in is non-zero, journal_revoke() will decrement its b_count
+ * If bh_in is non-zero, jbd2_journal_revoke() will decrement its b_count
* by one.
*/
-int journal_revoke(handle_t *handle, unsigned long blocknr,
+int jbd2_journal_revoke(handle_t *handle, unsigned long blocknr,
struct buffer_head *bh_in)
{
struct buffer_head *bh = NULL;
@@ -338,7 +338,7 @@ int journal_revoke(handle_t *handle, unsigned long blocknr,
BUFFER_TRACE(bh_in, "enter");
journal = handle->h_transaction->t_journal;
- if (!journal_set_features(journal, 0, 0, JFS_FEATURE_INCOMPAT_REVOKE)){
+ if (!jbd2_journal_set_features(journal, 0, 0, JBD2_FEATURE_INCOMPAT_REVOKE)){
J_ASSERT (!"Cannot set revoke feature!");
return -EINVAL;
}
@@ -386,8 +386,8 @@ int journal_revoke(handle_t *handle, unsigned long blocknr,
set_buffer_revoked(bh);
set_buffer_revokevalid(bh);
if (bh_in) {
- BUFFER_TRACE(bh_in, "call journal_forget");
- journal_forget(handle, bh_in);
+ BUFFER_TRACE(bh_in, "call jbd2_journal_forget");
+ jbd2_journal_forget(handle, bh_in);
} else {
BUFFER_TRACE(bh, "call brelse");
__brelse(bh);
@@ -403,7 +403,7 @@ int journal_revoke(handle_t *handle, unsigned long blocknr,
/*
* Cancel an outstanding revoke. For use only internally by the
- * journaling code (called from journal_get_write_access).
+ * journaling code (called from jbd2_journal_get_write_access).
*
* We trust buffer_revoked() on the buffer if the buffer is already
* being journaled: if there is no revoke pending on the buffer, then we
@@ -418,9 +418,9 @@ int journal_revoke(handle_t *handle, unsigned long blocknr,
*
* The caller must have the journal locked.
*/
-int journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
+int jbd2_journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
{
- struct jbd_revoke_record_s *record;
+ struct jbd2_revoke_record_s *record;
journal_t *journal = handle->h_transaction->t_journal;
int need_cancel;
int did_revoke = 0; /* akpm: debug */
@@ -447,7 +447,7 @@ int journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
spin_lock(&journal->j_revoke_lock);
list_del(&record->hash);
spin_unlock(&journal->j_revoke_lock);
- kmem_cache_free(revoke_record_cache, record);
+ kmem_cache_free(jbd2_revoke_record_cache, record);
did_revoke = 1;
}
}
@@ -478,7 +478,7 @@ int journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
* we do not want to suspend any processing until all revokes are
* written -bzzz
*/
-void journal_switch_revoke_table(journal_t *journal)
+void jbd2_journal_switch_revoke_table(journal_t *journal)
{
int i;
@@ -498,12 +498,12 @@ void journal_switch_revoke_table(journal_t *journal)
* Called with the journal lock held.
*/
-void journal_write_revoke_records(journal_t *journal,
+void jbd2_journal_write_revoke_records(journal_t *journal,
transaction_t *transaction)
{
struct journal_head *descriptor;
- struct jbd_revoke_record_s *record;
- struct jbd_revoke_table_s *revoke;
+ struct jbd2_revoke_record_s *record;
+ struct jbd2_revoke_table_s *revoke;
struct list_head *hash_list;
int i, offset, count;
@@ -519,14 +519,14 @@ void journal_write_revoke_records(journal_t *journal,
hash_list = &revoke->hash_table[i];
while (!list_empty(hash_list)) {
- record = (struct jbd_revoke_record_s *)
+ record = (struct jbd2_revoke_record_s *)
hash_list->next;
write_one_revoke_record(journal, transaction,
&descriptor, &offset,
record);
count++;
list_del(&record->hash);
- kmem_cache_free(revoke_record_cache, record);
+ kmem_cache_free(jbd2_revoke_record_cache, record);
}
}
if (descriptor)
@@ -543,7 +543,7 @@ static void write_one_revoke_record(journal_t *journal,
transaction_t *transaction,
struct journal_head **descriptorp,
int *offsetp,
- struct jbd_revoke_record_s *record)
+ struct jbd2_revoke_record_s *record)
{
struct journal_head *descriptor;
int offset;
@@ -551,7 +551,7 @@ static void write_one_revoke_record(journal_t *journal,
/* If we are already aborting, this all becomes a noop. We
still need to go round the loop in
- journal_write_revoke_records in order to free all of the
+ jbd2_journal_write_revoke_records in order to free all of the
revoke records: only the IO to the journal is omitted. */
if (is_journal_aborted(journal))
return;
@@ -568,19 +568,19 @@ static void write_one_revoke_record(journal_t *journal,
}
if (!descriptor) {
- descriptor = journal_get_descriptor_buffer(journal);
+ descriptor = jbd2_journal_get_descriptor_buffer(journal);
if (!descriptor)
return;
header = (journal_header_t *) &jh2bh(descriptor)->b_data[0];
- header->h_magic = cpu_to_be32(JFS_MAGIC_NUMBER);
- header->h_blocktype = cpu_to_be32(JFS_REVOKE_BLOCK);
+ header->h_magic = cpu_to_be32(JBD2_MAGIC_NUMBER);
+ header->h_blocktype = cpu_to_be32(JBD2_REVOKE_BLOCK);
header->h_sequence = cpu_to_be32(transaction->t_tid);
/* Record it so that we can wait for IO completion later */
JBUFFER_TRACE(descriptor, "file as BJ_LogCtl");
- journal_file_buffer(descriptor, transaction, BJ_LogCtl);
+ jbd2_journal_file_buffer(descriptor, transaction, BJ_LogCtl);
- offset = sizeof(journal_revoke_header_t);
+ offset = sizeof(jbd2_journal_revoke_header_t);
*descriptorp = descriptor;
}
@@ -601,7 +601,7 @@ static void flush_descriptor(journal_t *journal,
struct journal_head *descriptor,
int offset)
{
- journal_revoke_header_t *header;
+ jbd2_journal_revoke_header_t *header;
struct buffer_head *bh = jh2bh(descriptor);
if (is_journal_aborted(journal)) {
@@ -609,7 +609,7 @@ static void flush_descriptor(journal_t *journal,
return;
}
- header = (journal_revoke_header_t *) jh2bh(descriptor)->b_data;
+ header = (jbd2_journal_revoke_header_t *) jh2bh(descriptor)->b_data;
header->r_count = cpu_to_be32(offset);
set_buffer_jwrite(bh);
BUFFER_TRACE(bh, "write");
@@ -640,11 +640,11 @@ static void flush_descriptor(journal_t *journal,
* single block.
*/
-int journal_set_revoke(journal_t *journal,
+int jbd2_journal_set_revoke(journal_t *journal,
unsigned long blocknr,
tid_t sequence)
{
- struct jbd_revoke_record_s *record;
+ struct jbd2_revoke_record_s *record;
record = find_revoke_record(journal, blocknr);
if (record) {
@@ -664,11 +664,11 @@ int journal_set_revoke(journal_t *journal,
* ones, but later transactions still need replayed.
*/
-int journal_test_revoke(journal_t *journal,
+int jbd2_journal_test_revoke(journal_t *journal,
unsigned long blocknr,
tid_t sequence)
{
- struct jbd_revoke_record_s *record;
+ struct jbd2_revoke_record_s *record;
record = find_revoke_record(journal, blocknr);
if (!record)
@@ -683,21 +683,21 @@ int journal_test_revoke(journal_t *journal,
* that it can be reused by the running filesystem.
*/
-void journal_clear_revoke(journal_t *journal)
+void jbd2_journal_clear_revoke(journal_t *journal)
{
int i;
struct list_head *hash_list;
- struct jbd_revoke_record_s *record;
- struct jbd_revoke_table_s *revoke;
+ struct jbd2_revoke_record_s *record;
+ struct jbd2_revoke_table_s *revoke;
revoke = journal->j_revoke;
for (i = 0; i < revoke->hash_size; i++) {
hash_list = &revoke->hash_table[i];
while (!list_empty(hash_list)) {
- record = (struct jbd_revoke_record_s*) hash_list->next;
+ record = (struct jbd2_revoke_record_s*) hash_list->next;
list_del(&record->hash);
- kmem_cache_free(revoke_record_cache, record);
+ kmem_cache_free(jbd2_revoke_record_cache, record);
}
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 00:00:35 +0000