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selftests/filesystems: add a vfat RENAME_EXCHANGE test

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Add a test for the renameat2 RENAME_EXCHANGE support in vfat, but split it
in a tool that just does the rename exchange and a script that is run by
the kselftests framework on `make TARGETS="filesystems/fat" kselftest`.

That way the script can be easily extended to test other file operations.

The script creates a 1 MiB disk image, that is then formated with a vfat
filesystem and mounted using a loop device.  That way all file operations
are done on an ephemeral filesystem.

Link: https://lkml.kernel.org/r/20220610075721.1182745-5-javierm@redhat.com
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Alexander Larsson <alexl@redhat.com>
Cc: Christian Kellner <ckellner@redhat.com>
Cc: Chung-Chiang Cheng <cccheng@synology.com>
Cc: Colin Walters <walters@verbum.org>
Cc: Lennart Poettering <lennart@poettering.net>
Cc: Peter Jones <pjones@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Javier Martinez Canillas
2022-06-10 09:57:21 +02:00
committed by akpm
parent da87e1725a
commit dd7c9be330
7 changed files with 132 additions and 0 deletions
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tools/testing/selftests/Makefile
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@@ -17,6 +17,7 @@ TARGETS += exec
TARGETS += filesystems
TARGETS += filesystems/binderfs
TARGETS += filesystems/epoll
TARGETS += filesystems/fat
TARGETS += firmware
TARGETS += fpu
TARGETS += ftrace