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-rw-r--r--include/linux/jbd2.h16
-rw-r--r--include/trace/events/ext4.h20
2 files changed, 21 insertions, 15 deletions
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index adf832dec3f..0b52924a0cb 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -601,13 +601,13 @@ struct transaction_s
* Number of outstanding updates running on this transaction
* [t_handle_lock]
*/
- int t_updates;
+ atomic_t t_updates;
/*
* Number of buffers reserved for use by all handles in this transaction
* handle but not yet modified. [t_handle_lock]
*/
- int t_outstanding_credits;
+ atomic_t t_outstanding_credits;
/*
* Forward and backward links for the circular list of all transactions
@@ -629,7 +629,7 @@ struct transaction_s
/*
* How many handles used this transaction? [t_handle_lock]
*/
- int t_handle_count;
+ atomic_t t_handle_count;
/*
* This transaction is being forced and some process is
@@ -764,7 +764,7 @@ struct journal_s
/*
* Protect the various scalars in the journal
*/
- spinlock_t j_state_lock;
+ rwlock_t j_state_lock;
/*
* Number of processes waiting to create a barrier lock [j_state_lock]
@@ -1082,7 +1082,9 @@ static inline handle_t *journal_current_handle(void)
*/
extern handle_t *jbd2_journal_start(journal_t *, int nblocks);
-extern int jbd2_journal_restart (handle_t *, int nblocks);
+extern handle_t *jbd2__journal_start(journal_t *, int nblocks, int gfp_mask);
+extern int jbd2_journal_restart(handle_t *, int nblocks);
+extern int jbd2__journal_restart(handle_t *, int nblocks, int gfp_mask);
extern int jbd2_journal_extend (handle_t *, int nblocks);
extern int jbd2_journal_get_write_access(handle_t *, struct buffer_head *);
extern int jbd2_journal_get_create_access (handle_t *, struct buffer_head *);
@@ -1257,8 +1259,8 @@ static inline int jbd_space_needed(journal_t *journal)
{
int nblocks = journal->j_max_transaction_buffers;
if (journal->j_committing_transaction)
- nblocks += journal->j_committing_transaction->
- t_outstanding_credits;
+ nblocks += atomic_read(&journal->j_committing_transaction->
+ t_outstanding_credits);
return nblocks;
}
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index f3865c7b416..01e9e0076a9 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -395,11 +395,12 @@ DEFINE_EVENT(ext4__mb_new_pa, ext4_mb_new_group_pa,
);
TRACE_EVENT(ext4_mb_release_inode_pa,
- TP_PROTO(struct ext4_allocation_context *ac,
+ TP_PROTO(struct super_block *sb,
+ struct ext4_allocation_context *ac,
struct ext4_prealloc_space *pa,
unsigned long long block, unsigned int count),
- TP_ARGS(ac, pa, block, count),
+ TP_ARGS(sb, ac, pa, block, count),
TP_STRUCT__entry(
__field( dev_t, dev )
@@ -410,8 +411,9 @@ TRACE_EVENT(ext4_mb_release_inode_pa,
),
TP_fast_assign(
- __entry->dev = ac->ac_sb->s_dev;
- __entry->ino = ac->ac_inode->i_ino;
+ __entry->dev = sb->s_dev;
+ __entry->ino = (ac && ac->ac_inode) ?
+ ac->ac_inode->i_ino : 0;
__entry->block = block;
__entry->count = count;
),
@@ -422,10 +424,11 @@ TRACE_EVENT(ext4_mb_release_inode_pa,
);
TRACE_EVENT(ext4_mb_release_group_pa,
- TP_PROTO(struct ext4_allocation_context *ac,
+ TP_PROTO(struct super_block *sb,
+ struct ext4_allocation_context *ac,
struct ext4_prealloc_space *pa),
- TP_ARGS(ac, pa),
+ TP_ARGS(sb, ac, pa),
TP_STRUCT__entry(
__field( dev_t, dev )
@@ -436,8 +439,9 @@ TRACE_EVENT(ext4_mb_release_group_pa,
),
TP_fast_assign(
- __entry->dev = ac->ac_sb->s_dev;
- __entry->ino = ac->ac_inode->i_ino;
+ __entry->dev = sb->s_dev;
+ __entry->ino = (ac && ac->ac_inode) ?
+ ac->ac_inode->i_ino : 0;
__entry->pa_pstart = pa->pa_pstart;
__entry->pa_len = pa->pa_len;
),