ext4: let ext4 maintain extent status tree
This patch lets ext4 maintain extent status tree.
Currently it only tracks delay extent status in extent status tree. When a
delay allocation is issued, the related delay extent will be inserted into
extent status tree. When a delay extent is written out or invalidated, it will
be removed from this tree.
Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com>
Signed-off-by: Allison Henderson <achender@linux.vnet.ibm.com>
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 6791d09..ad6cd8a 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -50,6 +50,7 @@
#include "xattr.h"
#include "acl.h"
#include "mballoc.h"
+#include "ext4_extents.h"
#define CREATE_TRACE_POINTS
#include <trace/events/ext4.h>
@@ -1033,6 +1034,7 @@
clear_inode(inode);
dquot_drop(inode);
ext4_discard_preallocations(inode);
+ ext4_es_remove_extent(inode, 0, EXT_MAX_BLOCKS);
if (EXT4_I(inode)->jinode) {
jbd2_journal_release_jbd_inode(EXT4_JOURNAL(inode),
EXT4_I(inode)->jinode);
@@ -5296,9 +5298,14 @@
init_waitqueue_head(&ext4__ioend_wq[i]);
}
- err = ext4_init_pageio();
+ err = ext4_init_es();
if (err)
return err;
+
+ err = ext4_init_pageio();
+ if (err)
+ goto out7;
+
err = ext4_init_system_zone();
if (err)
goto out6;
@@ -5348,6 +5355,9 @@
ext4_exit_system_zone();
out6:
ext4_exit_pageio();
+out7:
+ ext4_exit_es();
+
return err;
}