Eric Biggers 0f7fddb5a9 fsverity: don't drop pagecache at end of FS_IOC_ENABLE_VERITY ... [ Upstream commit a075bacde2 ] The full pagecache drop at the end of FS_IOC_ENABLE_VERITY is causing performance problems and is hindering adoption of fsverity. It was intended to solve a race condition where unverified pages might be left in the pagecache. But actually it doesn't solve it fully. Since the incomplete solution for this race condition has too much performance impact for it to be worth it, let's remove it for now. Fixes: 3fda4c617e ("fs-verity: implement FS_IOC_ENABLE_VERITY ioctl") Cc: stable@vger.kernel.org Reviewed-by: Victor Hsieh <victorhsieh@google.com> Link: https://lore.kernel.org/r/20230314235332.50270-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2023-04-05 11:24:51 +02:00
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Kconfig	fsverity: relax build time dependency on CRYPTO_SHA256	2021-04-22 17:31:32 +10:00
Makefile	fs-verity: add FS_IOC_READ_VERITY_METADATA ioctl	2021-02-07 14:51:11 -08:00
enable.c	fsverity: don't drop pagecache at end of FS_IOC_ENABLE_VERITY	2023-04-05 11:24:51 +02:00
fsverity_private.h	fs-verity: don't pass whole descriptor to fsverity_verify_signature()	2021-02-07 14:51:09 -08:00
hash_algs.c	fs-verity: remove filenames from file comments	2020-11-16 11:40:10 -08:00
init.c	fs-verity: remove filenames from file comments	2020-11-16 11:40:10 -08:00
measure.c	fs-verity: rename "file measurement" to "file digest"	2020-11-16 11:40:12 -08:00
open.c	fs-verity: fix signed integer overflow with i_size near S64_MAX	2021-09-22 10:56:34 -07:00
read_metadata.c	fs-verity: support reading signature with ioctl	2021-02-07 14:51:19 -08:00
signature.c	fs-verity: don't pass whole descriptor to fsverity_verify_signature()	2021-02-07 14:51:09 -08:00
verify.c	fsverity: Remove WQ_UNBOUND from fsverity read workqueue	2023-03-30 12:47:56 +02:00