diff options
| author | David Herrmann <dh.herrmann@gmail.com> | 2014-08-08 14:25:34 -0700 |
|---|---|---|
| committer | Maciej Wereski <m.wereski@partner.samsung.com> | 2014-12-29 09:31:35 +0100 |
| commit | 2d63a8517a762037ed240509d6a2362744748b05 (patch) | |
| tree | 6281099e7864cd47421336e3072e475bf3389f71 /tools/testing/selftests/memfd/run_fuse_test.sh | |
| parent | 2322196a3b4f6eb6e253aad18853a23a0b1423f0 (diff) | |
| download | linux-3.10-2d63a8517a762037ed240509d6a2362744748b05.tar.gz linux-3.10-2d63a8517a762037ed240509d6a2362744748b05.tar.bz2 linux-3.10-2d63a8517a762037ed240509d6a2362744748b05.zip | |
selftests: add memfd/sealing page-pinning tests
Setting SEAL_WRITE is not possible if there're pending GUP users. This
commit adds selftests for memfd+sealing that use FUSE to create pending
page-references. FUSE is very helpful here in that it allows us to delay
direct-IO operations for an arbitrary amount of time. This way, we can
force the kernel to pin pages and then run our normal selftests.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Ryan Lortie <desrt@desrt.ca>
Cc: Lennart Poettering <lennart@poettering.net>
Cc: Daniel Mack <zonque@gmail.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Change-Id: Ideaf47a24b3522183cbe5ae10c320f7d38e31931
Origin: https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=87b2d44026e0e315a7401551e95b189ac4b28217
Backported-by: Maciej Wereski <m.wereski@partner.samsung.com>
Signed-off-by: Maciej Wereski <m.wereski@partner.samsung.com>
Diffstat (limited to 'tools/testing/selftests/memfd/run_fuse_test.sh')
| -rw-r--r-- | tools/testing/selftests/memfd/run_fuse_test.sh | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/tools/testing/selftests/memfd/run_fuse_test.sh b/tools/testing/selftests/memfd/run_fuse_test.sh new file mode 100644 index 00000000000..69b930e1e04 --- /dev/null +++ b/tools/testing/selftests/memfd/run_fuse_test.sh @@ -0,0 +1,14 @@ +#!/bin/sh + +if test -d "./mnt" ; then + fusermount -u ./mnt + rmdir ./mnt +fi + +set -e + +mkdir mnt +./fuse_mnt ./mnt +./fuse_test ./mnt/memfd +fusermount -u ./mnt +rmdir ./mnt |