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ceph: disable updating the atime since cephfs won't maintain it 

Since CephFS makes no attempt to maintain atime, we shouldn't
try to update it in mmap and generic read cases and ignore updating
it in direct and sync read cases.

And even we update it in mmap and generic read cases we will drop
it and won't sync it to MDS. And we are seeing the atime will be
updated and then dropped to the floor again and again.

URL: https://lists.ceph.io/hyperkitty/list/ceph-users@ceph.io/thread/VSJM7T4CS5TDRFF6XFPIYMHP75K73PZ6/
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Acked-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Xiubo Li 2022-04-20 13:13:02 +08:00 committed by Ilya Dryomov
parent 1b2ba3c561
commit f7a2d0688a
2 changed files with 1 additions and 1 deletions
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1
fs/ceph/addr.c
View File

@ -1777,7 +1777,6 @@ int ceph_mmap(struct file *file, struct vm_area_struct *vma)
if (!mapping->a_ops->readpage)
return -ENOEXEC;
file_accessed(file);
vma->vm_ops = &ceph_vmops;
return 0;
}

1
fs/ceph/super.c
View File

@ -1119,6 +1119,7 @@ static int ceph_set_super(struct super_block *s, struct fs_context *fc)
s->s_time_gran = 1;
s->s_time_min = 0;
s->s_time_max = U32_MAX;
s->s_flags |= SB_NODIRATIME | SB_NOATIME;
ret = set_anon_super_fc(s, fc);
if (ret != 0)