ext4: remove i_ioend_count
Remove counter of pending io ends as it is unused.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 9f3156c..70b8e04 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1024,13 +1024,8 @@
* transaction reserved
*/
struct list_head i_rsv_conversion_list;
- /*
- * Completed IOs that need unwritten extents handling and don't have
- * transaction reserved
- */
- atomic_t i_ioend_count; /* Number of outstanding io_end structs */
- atomic_t i_unwritten; /* Nr. of inflight conversions pending */
struct work_struct i_rsv_conversion_work;
+ atomic_t i_unwritten; /* Nr. of inflight conversions pending */
spinlock_t i_block_reservation_lock;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index c67c16e..971892d 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -216,7 +216,6 @@
}
truncate_inode_pages_final(&inode->i_data);
- WARN_ON(atomic_read(&EXT4_I(inode)->i_ioend_count));
goto no_delete;
}
@@ -228,8 +227,6 @@
ext4_begin_ordered_truncate(inode, 0);
truncate_inode_pages_final(&inode->i_data);
- WARN_ON(atomic_read(&EXT4_I(inode)->i_ioend_count));
-
/*
* Protect us against freezing - iput() caller didn't have to have any
* protection against it
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 090b349..349d7aa 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -128,9 +128,6 @@
BUG_ON(io_end->flag & EXT4_IO_END_UNWRITTEN);
WARN_ON(io_end->handle);
- if (atomic_dec_and_test(&EXT4_I(io_end->inode)->i_ioend_count))
- wake_up_all(ext4_ioend_wq(io_end->inode));
-
for (bio = io_end->bio; bio; bio = next_bio) {
next_bio = bio->bi_private;
ext4_finish_bio(bio);
@@ -265,7 +262,6 @@
{
ext4_io_end_t *io = kmem_cache_zalloc(io_end_cachep, flags);
if (io) {
- atomic_inc(&EXT4_I(inode)->i_ioend_count);
io->inode = inode;
INIT_LIST_HEAD(&io->list);
atomic_set(&io->count, 1);
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 4d57560..de02a9e 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -942,7 +942,6 @@
spin_lock_init(&ei->i_completed_io_lock);
ei->i_sync_tid = 0;
ei->i_datasync_tid = 0;
- atomic_set(&ei->i_ioend_count, 0);
atomic_set(&ei->i_unwritten, 0);
INIT_WORK(&ei->i_rsv_conversion_work, ext4_end_io_rsv_work);
#ifdef CONFIG_EXT4_FS_ENCRYPTION