generic: add test for fsync after renaming hard links of same file

mirror of https://github.com/linux-apfs/apfstests.git synced 2026-05-01 15:01:44 -07:00

Test that if we have a file with 2 (or more) hard links in the same
parent directory, rename of the hard links, rename one of the other
hard links to the old name of the hard link we renamed before,
create a new file in the same parent directory with the old name of
second hard link we renamed, fsync fsync this new file and power
fail, we will be able to mount again the filesystem and the new file
and all hard links exist.

This test is motivated by a bug found in btrfs, where mounting the
filesystem after the power failure resulted in failure with an errno
value of EEXIST, which is fixed by a patch for the linux kernel
titled:

  "Btrfs: fix mount failure after fsync due to hard link recreation"

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>

This commit is contained in:

Filipe Manana

2018-07-19 19:02:20 +01:00

committed by

Eryu Guan

parent b29b8b077e

commit b19c447027

3 changed files with 91 additions and 0 deletions

tests/generic/group

View File

@@ -504,3 +504,4 @@
 auto quick rw collapse zero
 auto thin trim
 auto quick clone log
 auto quick log