[PATCH 02/18] xstat: Add a pair of system calls to make extended file stats available [ver #6]
jengelh at medozas.de
Thu Jul 22 04:52:36 MDT 2010
On Sunday 2010-07-18 10:48, Christoph Hellwig wrote:
>Adding Uli to the Cc list to make sure this system call is useful
>for glibc / can be exported by it. Otherwise it's rather pointless
>to add it.
>> (6) BSD stat compatibility: Including more fields from the BSD stat such as
>> creation time (st_btime) and inode generation number (st_gen) [Jeremy
>> Allison, Bernd Schubert]
>How is this different from (1) and (4)?
(4), the inode generation number, need not be related to time.
>> (8) Allow the filesystem to indicate what it can/cannot provide: A filesystem
>> can now say it doesn't support a standard stat feature if that isn't
Given xstat.otime=0, how would you determine whether the file is really
tagged with a date of 1970, or whether it's just the fs which didnot
store this kind of information.
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