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jbd2: use SWRITE_SYNC_PLUG when writing synchronous revoke records 

The revoke records must be written using the same way as the rest of
the blocks during the commit process; that is, either marked as
synchronous writes or as asynchornous writes.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Theodore Ts'o 2009-04-14 07:50:56 -04:00
parent 6b82f3cb2d
commit 67c457a8c3
3 changed files with 16 additions and 11 deletions
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3
fs/jbd2/commit.c
View File

@ -506,7 +506,8 @@ void jbd2_journal_commit_transaction(journal_t *journal)
if (err)
jbd2_journal_abort(journal, err);
jbd2_journal_write_revoke_records(journal, commit_transaction);
jbd2_journal_write_revoke_records(journal, commit_transaction,
write_op);
jbd_debug(3, "JBD: commit phase 2\n");

21
fs/jbd2/revoke.c
View File

@ -86,6 +86,7 @@
#include <linux/slab.h>
#include <linux/list.h>
#include <linux/init.h>
#include <linux/bio.h>
#endif
#include <linux/log2.h>
@ -118,8 +119,8 @@ struct jbd2_revoke_table_s
#ifdef __KERNEL__
static void write_one_revoke_record(journal_t *, transaction_t *,
struct journal_head **, int *,
struct jbd2_revoke_record_s *);
static void flush_descriptor(journal_t *, struct journal_head *, int);
struct jbd2_revoke_record_s *, int);
static void flush_descriptor(journal_t *, struct journal_head *, int, int);
#endif
/* Utility functions to maintain the revoke table */
@ -499,7 +500,8 @@ void jbd2_journal_switch_revoke_table(journal_t *journal)
* revoke hash, deleting the entries as we go.
*/
void jbd2_journal_write_revoke_records(journal_t *journal,
transaction_t *transaction)
transaction_t *transaction,
int write_op)
{
struct journal_head *descriptor;
struct jbd2_revoke_record_s *record;
@ -523,14 +525,14 @@ void jbd2_journal_write_revoke_records(journal_t *journal,
hash_list->next;
write_one_revoke_record(journal, transaction,
&descriptor, &offset,
record);
record, write_op);
count++;
list_del(&record->hash);
kmem_cache_free(jbd2_revoke_record_cache, record);
}
}
if (descriptor)
flush_descriptor(journal, descriptor, offset);
flush_descriptor(journal, descriptor, offset, write_op);
jbd_debug(1, "Wrote %d revoke records\n", count);
}
@ -543,7 +545,8 @@ static void write_one_revoke_record(journal_t *journal,
transaction_t *transaction,
struct journal_head **descriptorp,
int *offsetp,
struct jbd2_revoke_record_s *record)
struct jbd2_revoke_record_s *record,
int write_op)
{
struct journal_head *descriptor;
int offset;
@ -562,7 +565,7 @@ static void write_one_revoke_record(journal_t *journal,
/* Make sure we have a descriptor with space left for the record */
if (descriptor) {
if (offset == journal->j_blocksize) {
flush_descriptor(journal, descriptor, offset);
flush_descriptor(journal, descriptor, offset, write_op);
descriptor = NULL;
}
}
@ -607,7 +610,7 @@ static void write_one_revoke_record(journal_t *journal,
static void flush_descriptor(journal_t *journal,
struct journal_head *descriptor,
int offset)
int offset, int write_op)
{
jbd2_journal_revoke_header_t *header;
struct buffer_head *bh = jh2bh(descriptor);
@ -622,7 +625,7 @@ static void flush_descriptor(journal_t *journal,
set_buffer_jwrite(bh);
BUFFER_TRACE(bh, "write");
set_buffer_dirty(bh);
ll_rw_block(SWRITE, 1, &bh);
ll_rw_block((write_op == WRITE) ? SWRITE : SWRITE_SYNC_PLUG, 1, &bh);
}
#endif

3
include/linux/jbd2.h
View File

@ -1193,7 +1193,8 @@ extern int jbd2_journal_init_revoke_caches(void);
extern void jbd2_journal_destroy_revoke(journal_t *);
extern int jbd2_journal_revoke (handle_t *, unsigned long long, struct buffer_head *);
extern int jbd2_journal_cancel_revoke(handle_t *, struct journal_head *);
extern void jbd2_journal_write_revoke_records(journal_t *, transaction_t *);
extern void jbd2_journal_write_revoke_records(journal_t *,
transaction_t *, int);
/* Recovery revoke support */
extern int jbd2_journal_set_revoke(journal_t *, unsigned long long, tid_t);