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i_version update

Jean noel Cordenner linux-ext4 linux-fsdevel 1 version In review

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  1. v1 Latest2 patches 10 repliesIn review

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#Subject and filesSizeRepliesApplied
1/2i_version update - vfs partfs/binfmt_misc.c fs/libfs.c fs/pipe.c +1 more+12 -10 replies
2/2i_version update - ext4 partfs/ext4/ialloc.c fs/ext4/inode.c fs/ext4/super.c +4 more+310 -44 replies

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Cover letter [patch 0/2] i_version update

Hi,

This is an update of the i_version patch.
The i_version field is a 64bit counter that is set on every inode creation and that is incremented every time the inode data is modified (similarly to the "ctime" time-stamp).
The aim is to fulfill a NFSv4 requirement for rfc3530:
"5.5. Mandatory Attributes - Definitions
Name # DataType Access Description
___________________________________________________________________
change 3 uint64 READ A value created by the
server that the client can use to determine if file data, directory contents or attributes of the object have been modified. The servermay return the object's time_metadata attribute for this attribute's value but only if the filesystem object can not be updated more frequently than the resolution of time_metadata.
"

The patch set is divided into 2parts, the vfs layer and a ext4 specific code.

Any comments welcome.

Cheers,
Jean noel

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