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Date: Wed, 29 Nov 2006 19:54:18 +0100
From: Jean-Noel Cordenner <jean-noel.cordenner@...l.net>
To: linux-ext4@...r.kernel.org
Subject: [RFC] [patch 2/3] change attribute for ext4: ext4 specific code
This part of the patch concerns the ext4 code.
Signed-off-by: Celine Bourde
Signed-off-by: Alexandre Ratchov
Signed-off-by: Jean Noel Cordenner <jean-noel.cordenner@...l.net>
--- linux-2.6.19-rc2-mm2-CA.orig/fs/ext4/ialloc.c 2006-11-09
17:20:57.000000000 +0100
+++ linux-2.6.19-rc2-mm2-CA/fs/ext4/ialloc.c 2006-11-29 15:34:35.000000000 +0100
@@ -564,6 +564,7 @@
/* This is the optimal IO size (for stat), not the fs block size */
inode->i_blocks = 0;
inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
+ inode->i_change_attribute = 1;
memset(ei->i_data, 0, sizeof(ei->i_data));
ei->i_dir_start_lookup = 0;
Index: linux-2.6.19-rc2-mm2-CA/fs/ext4/inode.c
===================================================================
--- linux-2.6.19-rc2-mm2-CA.orig/fs/ext4/inode.c 2006-11-09
17:20:57.000000000 +0100
+++ linux-2.6.19-rc2-mm2-CA/fs/ext4/inode.c 2006-11-29 15:38:39.000000000 +0100
@@ -728,6 +728,7 @@
/* We are done with atomic stuff, now do the rest of housekeeping */
inode->i_ctime = CURRENT_TIME_SEC;
+ inode->i_change_attribute++;
ext4_mark_inode_dirty(handle, inode);
/* had we spliced it onto indirect block? */
@@ -2377,6 +2378,7 @@
mutex_unlock(&ei->truncate_mutex);
inode->i_mtime = inode->i_ctime = CURRENT_TIME_SEC;
+ inode->i_change_attribute++;
ext4_mark_inode_dirty(handle, inode);
/*
@@ -2615,6 +2617,7 @@
inode->i_ctime.tv_sec = le32_to_cpu(raw_inode->i_ctime);
inode->i_mtime.tv_sec = le32_to_cpu(raw_inode->i_mtime);
inode->i_atime.tv_nsec = inode->i_ctime.tv_nsec =
inode->i_mtime.tv_nsec = 0;
+ inode->i_change_attribute = le32_to_cpu(raw_inode->i_chattr);
ei->i_state = 0;
ei->i_dir_start_lookup = 0;
@@ -2773,6 +2776,7 @@
raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
raw_inode->i_ctime = cpu_to_le32(inode->i_ctime.tv_sec);
raw_inode->i_mtime = cpu_to_le32(inode->i_mtime.tv_sec);
+ raw_inode->i_chattr = cpu_to_le32(inode->i_change_attribute);
raw_inode->i_blocks = cpu_to_le32(inode->i_blocks);
raw_inode->i_dtime = cpu_to_le32(ei->i_dtime);
raw_inode->i_flags = cpu_to_le32(ei->i_flags);
Index: linux-2.6.19-rc2-mm2-CA/fs/ext4/ioctl.c
===================================================================
--- linux-2.6.19-rc2-mm2-CA.orig/fs/ext4/ioctl.c 2006-11-29
15:41:28.000000000 +0100
+++ linux-2.6.19-rc2-mm2-CA/fs/ext4/ioctl.c 2006-11-29 15:42:21.000000000 +0100
@@ -97,6 +97,7 @@
ext4_set_inode_flags(inode);
inode->i_ctime = CURRENT_TIME_SEC;
+ inode->i_change_attribute++;
err = ext4_mark_iloc_dirty(handle, inode, &iloc);
flags_err:
@@ -134,6 +135,7 @@
err = ext4_reserve_inode_write(handle, inode, &iloc);
if (err == 0) {
inode->i_ctime = CURRENT_TIME_SEC;
+ inode->i_change_attribute++;
inode->i_generation = generation;
err = ext4_mark_iloc_dirty(handle, inode, &iloc);
}
Index: linux-2.6.19-rc2-mm2-CA/fs/ext4/namei.c
===================================================================
--- linux-2.6.19-rc2-mm2-CA.orig/fs/ext4/namei.c 2006-11-09
17:20:57.000000000 +0100
+++ linux-2.6.19-rc2-mm2-CA/fs/ext4/namei.c 2006-11-29 15:53:06.000000000 +0100
@@ -1274,6 +1274,7 @@
* and/or different from the directory change time.
*/
dir->i_mtime = dir->i_ctime = CURRENT_TIME_SEC;
+ dir->i_change_attribute++;
ext4_update_dx_flag(dir);
dir->i_version++;
ext4_mark_inode_dirty(handle, dir);
@@ -2050,6 +2051,8 @@
inode->i_size = 0;
ext4_orphan_add(handle, inode);
inode->i_ctime = dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
+ inode->i_change_attribute++;
+ dir->i_change_attribute++;
ext4_mark_inode_dirty(handle, inode);
drop_nlink(dir);
ext4_update_dx_flag(dir);
@@ -2100,12 +2103,14 @@
if (retval)
goto end_unlink;
dir->i_ctime = dir->i_mtime = CURRENT_TIME_SEC;
+ dir->i_change_attribute++;
ext4_update_dx_flag(dir);
ext4_mark_inode_dirty(handle, dir);
drop_nlink(inode);
if (!inode->i_nlink)
ext4_orphan_add(handle, inode);
inode->i_ctime = dir->i_ctime;
+ inode->i_change_attribute++;
ext4_mark_inode_dirty(handle, inode);
retval = 0;
@@ -2191,6 +2196,7 @@
handle->h_sync = 1;
inode->i_ctime = CURRENT_TIME_SEC;
+ inode->i_change_attribute++;
ext4_inc_count(handle, inode);
atomic_inc(&inode->i_count);
@@ -2293,6 +2299,7 @@
* rename.
*/
old_inode->i_ctime = CURRENT_TIME_SEC;
+ old_inode->i_change_attribute++;
ext4_mark_inode_dirty(handle, old_inode);
/*
@@ -2326,8 +2333,10 @@
if (new_inode) {
drop_nlink(new_inode);
new_inode->i_ctime = CURRENT_TIME_SEC;
+ new_inode->i_change_attribute++;
}
old_dir->i_ctime = old_dir->i_mtime = CURRENT_TIME_SEC;
+ old_dir->i_change_attribute++;
ext4_update_dx_flag(old_dir);
if (dir_bh) {
BUFFER_TRACE(dir_bh, "get_write_access");
Index: linux-2.6.19-rc2-mm2-CA/fs/ext4/super.c
===================================================================
--- linux-2.6.19-rc2-mm2-CA.orig/fs/ext4/super.c 2006-11-09
17:20:57.000000000 +0100
+++ linux-2.6.19-rc2-mm2-CA/fs/ext4/super.c 2006-11-29 15:57:02.000000000 +0100
@@ -2780,6 +2780,7 @@
}
inode->i_version++;
inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+ inode->i_change_attribute = 1;
ext4_mark_inode_dirty(handle, inode);
mutex_unlock(&inode->i_mutex);
return len - towrite;
Index: linux-2.6.19-rc2-mm2-CA/fs/ext4/xattr.c
===================================================================
--- linux-2.6.19-rc2-mm2-CA.orig/fs/ext4/xattr.c 2006-11-09
17:20:57.000000000 +0100
+++ linux-2.6.19-rc2-mm2-CA/fs/ext4/xattr.c 2006-11-29 15:57:50.000000000 +0100
@@ -1005,6 +1005,7 @@
if (!error) {
ext4_xattr_update_super_block(handle, inode->i_sb);
inode->i_ctime = CURRENT_TIME_SEC;
+ inode->i_change_attribute++;
error = ext4_mark_iloc_dirty(handle, inode, &is.iloc);
/*
* The bh is consumed by ext4_mark_iloc_dirty, even with
Index: linux-2.6.19-rc2-mm2-CA/include/linux/ext4_fs.h
===================================================================
--- linux-2.6.19-rc2-mm2-CA.orig/include/linux/ext4_fs.h 2006-11-09
17:21:48.000000000 +0100
+++ linux-2.6.19-rc2-mm2-CA/include/linux/ext4_fs.h 2006-11-29
16:15:01.000000000 +0100
@@ -312,7 +312,7 @@
__le16 l_i_file_acl_high;
__le16 l_i_uid_high; /* these 2 fields */
__le16 l_i_gid_high; /* were reserved2[0] */
- __u32 l_i_reserved2;
+ __u32 l_i_change_attribute;
} linux2;
struct {
__u8 h_i_frag; /* Fragment number */
@@ -344,7 +344,7 @@
#define i_gid_low i_gid
#define i_uid_high osd2.linux2.l_i_uid_high
#define i_gid_high osd2.linux2.l_i_gid_high
-#define i_reserved2 osd2.linux2.l_i_reserved2
+#define i_chattr osd2.linux2.l_i_change_attribute
#elif defined(__GNU__)
-
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