selftests/kernfs: test xattr retrieval

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Make sure that listxattr() returns zero and that getxattr() returns
ENODATA when no extended attributs are set. Use /sys/kernel/warn_count
as that always exists and is a read-only file.

Link: https://lore.kernel.org/20250702-hochmoderne-abklatsch-af9c605b57b2@brauner
Signed-off-by: Christian Brauner <brauner@kernel.org>

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Christian Brauner 2025-07-02 13:53:21 +02:00

parent 05a0393124

commit 70619d40e8

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1

tools/testing/selftests/filesystems/.gitignore vendored

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2

tools/testing/selftests/filesystems/Makefile

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38

tools/testing/selftests/filesystems/kernfs_test.c

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