Super block has special variable for fssync tracking. This is not
optimal. Let's rename it to general s_state variable.
Other bits will be used in later patches.
Signed-off-by: Dmitry Monakhov <dmonakhov@xxxxxxxxxx>
---
fs/sync.c | 6 +++---
include/linux/fs.h | 5 ++++-
2 files changed, 7 insertions(+), 4 deletions(-)
diff --git a/fs/sync.c b/fs/sync.c
index 418727a..6e540fc 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -97,13 +97,13 @@ static void sync_filesystems(int wait)
mutex_lock(&mutex); /* Could be down_interruptible */
spin_lock(&sb_lock);
list_for_each_entry(sb, &super_blocks, s_list)
- sb->s_need_sync = 1;
+ set_bit(ST_FS_SYNC, &sb->s_state);
restart:
list_for_each_entry(sb, &super_blocks, s_list) {
- if (!sb->s_need_sync)
+ if (!test_bit(ST_FS_SYNC, &sb->s_state))
continue;
- sb->s_need_sync = 0;
+ clear_bit(ST_FS_SYNC, &sb->s_state);
sb->s_count++;
spin_unlock(&sb_lock);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index cd32f1b..66369f6 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1306,6 +1306,9 @@ extern int send_sigurg(struct fown_struct *fown);
#define MNT_DETACH 0x00000002 /* Just detach from the tree */
#define MNT_EXPIRE 0x00000004 /* Mark for expiry */
+enum {
+ ST_FS_SYNC, /* fssync is about to happen */
+};
extern struct list_head super_blocks;
extern spinlock_t sb_lock;
@@ -1325,11 +1328,11 @@ struct super_block {
const struct export_operations *s_export_op;
unsigned long s_flags;
unsigned long s_magic;
+ unsigned long s_state;
struct dentry *s_root;
struct rw_semaphore s_umount;
struct mutex s_lock;
int s_count;
- int s_need_sync;
atomic_t s_active;
#ifdef CONFIG_SECURITY
void *s_security;
--
1.6.6
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
