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The C library struct timespec doesn't support this on 32-bitĪrchitectures and we cannot lose the upper bits in the incore inode. To: sandeen, darrick.wong +Cc: Amir Goldstein, linux-xfsĬreate a real struct timespec64 that supports 64-bit seconds counts. ` (24 subsequent siblings) 25 siblings, 1 reply 58+ messages in thread 23:34 ` libxfs: refactor NSEC_PER_SEC Darrick J. 23:34 xfsprogs: widen timestamps to deal with y2038 Darrick J.
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* libxfs: create a real struct timespec64 This is an extraordinary way to destroy everything. Pull from my git trees, which are linked below. If you're going to start using this mess, you probably ought to just V5: reintroduce timestamp unions as *legacy* timestamp unions V4: drop the timestamp unions, add "is bigtime?" predicates everywhere V2: rebase to 5.9, having landed the quota refactoring Quota timers could theoretically range from:Ġ () through (((2^34-1) + (2^31-1)) & ~3) ().īut with the capping in place, the quota timers maximum is: Quota timersĪre a 34-bit unsigned second counter right shifted two bits, with 0īeing the Unix epoch, and capped at the maximum inode timestamp value. With the bigtime encoding turned on, inode timestamps are an unsignedĦ4-bit nanoseconds counter, with 0 being the 1901 epoch.
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This means that inode timestamps can range from: Unsigned 32-bit seconds counter, with 0 also being the Unix epoch. Seconds counter, with 0 being the Unix epoch. On a current V5 filesystem, inodes timestamps are a signed 32-bit These two changes enable correct time handling on XFS through the To the non-root dquot timer fields to boost their effective size to 34īits. Timestamps as a 64-bit nanosecond counter.
#UNIX ITIMER SERIES#
This series performs some refactoring of our timestamp and inodeĮncoding functions, then retrofits the timestamp union to handle Wong 23:34 UTC ( / raw)Ĭc: Christoph Hellwig, Amir Goldstein, Allison Collins, Gao Xiang, ` (25 more replies) 0 siblings, 26 replies 58+ messages in threadįrom: Darrick J. 23:34 ` libxfs: create a real struct timespec64 Darrick J. Xfsprogs: widen timestamps to deal with y2038 All of help / color / mirror / Atom feed * xfsprogs: widen timestamps to deal with y2038 23:34 Darrick J.