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ext4: cleanup clean_bdev_aliases() calls

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Now, we have already handle all cases of forgetting buffer in
jbd2_journal_forget(), the buffer should not be mapped to blockdevice
when reallocating it. So this patch remove all clean_bdev_aliases() and
clean_bdev_bh_alias() calls which were invoked by ext4 explicitly.

Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: zhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
This commit is contained in:
zhangyi (F)
2019-02-10 23:32:07 -05:00
committed by Theodore Ts'o
parent 597599268e
commit 16e08b14a4
3 changed files with 2 additions and 21 deletions
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12
fs/ext4/extents.c
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@ -4048,18 +4048,8 @@ out:
} else
allocated = ret;
map->m_flags |= EXT4_MAP_NEW;
/*
* if we allocated more blocks than requested
* we need to make sure we unmap the extra block
* allocated. The actual needed block will get
* unmapped later when we find the buffer_head marked
* new.
*/
if (allocated > map->m_len) {
clean_bdev_aliases(inode->i_sb->s_bdev, newblock + map->m_len,
allocated - map->m_len);
if (allocated > map->m_len)
allocated = map->m_len;
}
map->m_len = allocated;
map_out: