Mike Kravetz f1f5d089fc selftests/memfd: clean up mapping in mfd_fail_write ... [ Upstream commit fda153c89a ] Running the memfd script ./run_hugetlbfs_test.sh will often end in error as follows: memfd-hugetlb: CREATE memfd-hugetlb: BASIC memfd-hugetlb: SEAL-WRITE memfd-hugetlb: SEAL-FUTURE-WRITE memfd-hugetlb: SEAL-SHRINK fallocate(ALLOC) failed: No space left on device ./run_hugetlbfs_test.sh: line 60: 166855 Aborted (core dumped) ./memfd_test hugetlbfs opening: ./mnt/memfd fuse: DONE If no hugetlb pages have been preallocated, run_hugetlbfs_test.sh will allocate 'just enough' pages to run the test. In the SEAL-FUTURE-WRITE test the mfd_fail_write routine maps the file, but does not unmap. As a result, two hugetlb pages remain reserved for the mapping. When the fallocate call in the SEAL-SHRINK test attempts allocate all hugetlb pages, it is short by the two reserved pages. Fix by making sure to unmap in mfd_fail_write. Link: https://lkml.kernel.org/r/20220219004340.56478-1-mike.kravetz@oracle.com Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> Cc: Joel Fernandes <joel@joelfernandes.org> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-03-16 14:16:01 +01:00
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accounting
arch	x86/speculation: Rename RETPOLINE_AMD to RETPOLINE_LFENCE	2022-03-11 12:11:49 +01:00
bootconfig	tools/bootconfig: Fix tracing_on option checking in ftrace2bconf.sh	2021-09-26 14:08:59 +02:00
bpf	tools/resolve_btfids: Do not print any commands when building silently	2022-02-08 18:30:39 +01:00
build	tools build: Remove needless libpython-version feature check that breaks test-all fast path	2021-12-14 11:32:42 +01:00
cgroup
debugging
edid
firewire
firmware
gpio
hv
iio
include	tools/nolibc: fix incorrect truncation of exit code	2022-01-27 10:53:42 +01:00
io_uring
kvm/kvm_stat
laptop
leds
lib	libsubcmd: Fix use-after-free for realloc(..., 0)	2022-02-23 12:01:02 +01:00
memory-model
objtool	objtool: Fix static_call list generation	2021-11-18 14:04:02 +01:00
pci
pcmcia
perf	perf data: Fix double free in perf_session__delete()	2022-03-02 11:42:48 +01:00
power	tweewide: Fix most Shebang lines	2021-05-22 11:40:55 +02:00
scripts	tools: Allow proper CC/CXX/... override with LLVM=1 in Makefile.include	2021-07-31 08:16:10 +02:00
spi
testing	selftests/memfd: clean up mapping in mfd_fail_write	2022-03-16 14:16:01 +01:00
thermal/tmon	tools/thermal/tmon: Add cross compiling support	2021-09-18 13:40:07 +02:00
time
usb	usb: testusb: Fix for showing the connection speed	2021-10-09 14:40:56 +02:00
virtio	tools/virtio: fix build	2021-09-03 10:09:27 +02:00
vm	tools/vm/page-types: remove dependency on opt_file for idle page tracking	2021-10-09 14:40:57 +02:00
wmi
Makefile