Eric Biggers a075bacde2 fsverity: don't drop pagecache at end of FS_IOC_ENABLE_VERITY ... 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>		2023-03-15 22:50:41 -07:00
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enable.c	fsverity: don't drop pagecache at end of FS_IOC_ENABLE_VERITY	2023-03-15 22:50:41 -07:00
fsverity_private.h	fsverity: support verification with tree block size < PAGE_SIZE	2023-01-09 19:06:03 -08:00
hash_algs.c	fsverity: replace fsverity_hash_page() with fsverity_hash_block()	2023-01-09 19:06:01 -08:00
init.c	fsverity: remove debug messages and CONFIG_FS_VERITY_DEBUG	2023-01-01 15:46:48 -08:00
Kconfig	fsverity: remove debug messages and CONFIG_FS_VERITY_DEBUG	2023-01-01 15:46:48 -08:00
Makefile	fs-verity: add FS_IOC_READ_VERITY_METADATA ioctl	2021-02-07 14:51:11 -08:00
measure.c	fsverity: simplify fsverity_get_digest()	2022-11-29 21:07:41 -08:00
open.c	fsverity: support verification with tree block size < PAGE_SIZE	2023-01-09 19:06:03 -08:00
read_metadata.c	fs-verity: use kmap_local_page() instead of kmap()	2022-08-19 15:19:55 -07:00
signature.c	fsverity: remove debug messages and CONFIG_FS_VERITY_DEBUG	2023-01-01 15:46:48 -08:00
verify.c	fsverity: Remove WQ_UNBOUND from fsverity read workqueue	2023-03-14 16:16:36 -07:00