glibc/sysdeps/unix
Adhemerval Zanella b2970919ba io: Return UNSUPPORTED if filesystem do not support 64 bit timestamps
Some Linux filesystems might not fully support 64 bit timestamps [1],
which make some Linux specific tests to fail when they check for the
functionality.

This patch adds a new libsupport function, support_path_support_time64,
that returns whether the target file supports or not 64 bit timestamps.
The support is checked by issuing a utimensat and verifying both the
last access and last modification time against a statx call.

The tests that might fail are also adjusted to check the file support
as well:

  $ dd if=/dev/zero of=loopbackfile.img bs=100M count=1
  1+0 records in
  1+0 records out
  104857600 bytes (105 MB, 100 MiB) copied, 0,0589568 s, 1,8 GB/s
  $ sudo losetup -fP loopbackfile.img
  $ mkfs.xfs loopbackfile.img
  meta-data=loopbackfile.img       isize=512    agcount=4, agsize=6400 blks
           =                       sectsz=512   attr=2, projid32bit=1
           =                       crc=1        finobt=1, sparse=1, rmapbt=0
           =                       reflink=1
  data     =                       bsize=4096   blocks=25600, imaxpct=25
           =                       sunit=0      swidth=0 blks
  naming   =version 2              bsize=4096   ascii-ci=0, ftype=1
  log      =internal log           bsize=4096   blocks=1368, version=2
           =                       sectsz=512   sunit=0 blks, lazy-count=1
  realtime =none                   extsz=4096   blocks=0, rtextents=0
  $ mkdir loopfs
  $ sudo mount -o loop /dev/loop0 loopfs/
  $ sudo chown -R azanella:azanella loopfs
  $ TMPDIR=loopfs/ ./testrun.sh misc/tst-utimes
  error: ../sysdeps/unix/sysv/linux/tst-utimes.c:55: File loopfs//utimesfECsK1 does not support 64-bit timestamps

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1795576
2021-03-12 10:17:31 -03:00
..
alpha Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
arm Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
bsd Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
i386 Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
inet Remove obsolete, never-implemented XSI STREAMS declarations 2019-03-14 15:44:15 +01:00
mips Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
powerpc Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
sh Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
sysv/linux io: Return UNSUPPORTED if filesystem do not support 64 bit timestamps 2021-03-12 10:17:31 -03:00
x86_64 Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
confstr.h
get_child_max.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getlogin_r.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getlogin.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getpagesize.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
grantpt.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ifreq.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Implies
make-syscalls.sh Add SYSCALL_ULONG_ARG_[12] to pass long to syscall [BZ #25810] 2020-04-29 05:35:34 -07:00
Makefile Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
pt-fcntl.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
s-proto-cancel.S * sysdeps/unix/Makefile: Include $(common-objpfx)s-proto-cancel.d. 2002-12-30 00:12:56 +00:00
s-proto.S
setxid.h Update. 2004-11-12 01:27:04 +00:00
sockatmark.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
syscall-template.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
syscall.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
syscalls.list Mark unsigned long arguments with U in more syscalls [BZ #25810] 2020-04-29 08:10:01 -07:00
sysdep.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00