On Sun, 01 Jul 2007 03:37:16 -0400
Mingming Cao [EMAIL PROTECTED] wrote:
This patch adds a 32-bit i_version_hi field to ext4_inode, which can be used
for 64-bit inode versions. This field will store the higher 32 bits of the
version, while Jean Noel's patch has added support to store the lower 32-bits
in osd1.linux1.l_i_version.
Please wordwrap this changelog entry to less than 80 columns. Well, less
than 258, anyway ;)
Signed-off-by: Mingming Cao [EMAIL PROTECTED]
Signed-off-by: Andreas Dilger [EMAIL PROTECTED]
Signed-off-by: Kalpak Shah [EMAIL PROTECTED]
---
Index: linux-2.6.21/include/linux/ext4_fs.h
===
--- linux-2.6.21.orig/include/linux/ext4_fs.h
+++ linux-2.6.21/include/linux/ext4_fs.h
@@ -342,6 +342,7 @@ struct ext4_inode {
__le32 i_atime_extra; /* extra Access time (nsec 2 | epoch) */
__le32 i_crtime; /* File Creation time */
__le32 i_crtime_extra; /* extra FileCreationtime (nsec 2 | epoch) */
+ __le32 i_version_hi; /* high 32 bits for 64-bit version */
};
Aren't there forward- backward-compatibility issues here? How does the
filesystem driver work out whether this field is present and valid?
The changelog should describe this design issue.
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