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Re: [PATCH 01/21] fs: Replace CURRENT_TIME_SEC with current_fs_time()

From Arnd Bergmann <arnd@arndb.de>
Newsgroups linux.kernel
Subject Re: [PATCH 01/21] fs: Replace CURRENT_TIME_SEC with current_fs_time()
Date 2016-06-11 00:30 +0200
Message-ID <rID6a-2Ul-11@gated-at.bofh.it> (permalink)
References <rI0o9-1PH-9@gated-at.bofh.it> <rI0xP-1Vf-1@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Wednesday, June 8, 2016 10:04:45 PM CEST Deepa Dinamani wrote:
> CURRENT_TIME_SEC is not y2038 safe. current_fs_time() will
> be transitioned to use 64 bit time along with vfs in a
> separate patch.
> There is no plan to transistion CURRENT_TIME_SEC to use
> y2038 safe time interfaces.
> 
> current_fs_time() will also be extended to use superblock
> range checking parameters when range checking is introduced.
> 
> This works because alloc_super() fills in the the s_time_gran
> in super block to NSEC_PER_SEC.
> 
> Also note that filesystem specific times like the birthtime,
> creation time that were using same interfaces to obtain time
> retain same logistics.
> 
> Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>

one question:

In an earlier version, you had a small optimization to
use ktime_get_real_seconds() instead of current_kernel_time()
when the granularity is seconds.

Do you still plan to send that one, or did you decide we don't
need it?

	Arnd

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Thread

[PATCH 00/21] Delete CURRENT_TIME and CURRENT_TIME_SEC macros Deepa Dinamani <deepa.kernel@gmail.com> - 2016-06-09 07:20 +0200
  [PATCH 18/21] fs: nfs: Make nfs boot time y2038 safe Deepa Dinamani <deepa.kernel@gmail.com> - 2016-06-09 07:20 +0200
    Re: [PATCH 18/21] fs: nfs: Make nfs boot time y2038 safe Trond Myklebust <trondmy@primarydata.com> - 2016-06-09 21:30 +0200
      Re: [PATCH 18/21] fs: nfs: Make nfs boot time y2038 safe Deepa Dinamani <deepa.kernel@gmail.com> - 2016-06-09 23:20 +0200
        Re: [PATCH 18/21] fs: nfs: Make nfs boot time y2038 safe Anna Schumaker <Anna.Schumaker@netapp.com> - 2016-06-10 15:20 +0200
          Re: [PATCH 18/21] fs: nfs: Make nfs boot time y2038 safe Trond Myklebust <trondmy@primarydata.com> - 2016-06-10 16:10 +0200
  [PATCH 02/21] fs: ext4: Use current_fs_time() for inode timestamps Deepa Dinamani <deepa.kernel@gmail.com> - 2016-06-09 07:20 +0200
    Re: [PATCH 02/21] fs: ext4: Use current_fs_time() for inode timestamps Linus Torvalds <torvalds@linux-foundation.org> - 2016-06-09 20:50 +0200
      Re: [PATCH 02/21] fs: ext4: Use current_fs_time() for inode timestamps Linus Torvalds <torvalds@linux-foundation.org> - 2016-06-09 21:00 +0200
      Re: [Y2038] [PATCH 02/21] fs: ext4: Use current_fs_time() for inode timestamps Arnd Bergmann <arnd@arndb.de> - 2016-06-11 00:20 +0200
        Re: [Y2038] [PATCH 02/21] fs: ext4: Use current_fs_time() for inode timestamps Deepa Dinamani <deepa.kernel@gmail.com> - 2016-06-14 20:00 +0200
          Re: [Y2038] [PATCH 02/21] fs: ext4: Use current_fs_time() for inode timestamps Arnd Bergmann <arnd@arndb.de> - 2016-06-14 23:00 +0200
  [PATCH 07/21] fs: cifs: Replace CURRENT_TIME by current_fs_time() Deepa Dinamani <deepa.kernel@gmail.com> - 2016-06-09 07:20 +0200
  Re: [PATCH 01/21] fs: Replace CURRENT_TIME_SEC with current_fs_time() Jan Kara <jack@suse.cz> - 2016-06-09 09:40 +0200
    Re: [PATCH 01/21] fs: Replace CURRENT_TIME_SEC with current_fs_time() Linus Torvalds <torvalds@linux-foundation.org> - 2016-06-09 21:20 +0200
      Re: [PATCH 01/21] fs: Replace CURRENT_TIME_SEC with current_fs_time() Deepa Dinamani <deepa.kernel@gmail.com> - 2016-06-09 22:50 +0200
  Re: [PATCH 00/21] Delete CURRENT_TIME and CURRENT_TIME_SEC macros Felipe Balbi <balbi@kernel.org> - 2016-06-09 10:00 +0200
  Re: [PATCH 01/21] fs: Replace CURRENT_TIME_SEC with current_fs_time() Bob Copeland <me@bobcopeland.com> - 2016-06-09 14:40 +0200
  Re: [PATCH 01/21] fs: Replace CURRENT_TIME_SEC with current_fs_time() Arnd Bergmann <arnd@arndb.de> - 2016-06-11 00:30 +0200
    Re: [PATCH 01/21] fs: Replace CURRENT_TIME_SEC with current_fs_time() Deepa Dinamani <deepa.kernel@gmail.com> - 2016-06-11 07:10 +0200
      Re: [PATCH 01/21] fs: Replace CURRENT_TIME_SEC with current_fs_time() Arnd Bergmann <arnd@arndb.de> - 2016-06-11 23:10 +0200

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