Xin Yin 1122f40072 cachefiles: make on-demand request distribution fairer ... For now, enqueuing and dequeuing on-demand requests all start from idx 0, this makes request distribution unfair. In the weighty concurrent I/O scenario, the request stored in higher idx will starve. Searching requests cyclically in cachefiles_ondemand_daemon_read, makes distribution fairer. Fixes: c838305450 ("cachefiles: notify the user daemon when looking up cookie") Reported-by: Yongqing Li <liyongqing@bytedance.com> Signed-off-by: Xin Yin <yinxin.x@bytedance.com> Signed-off-by: David Howells <dhowells@redhat.com> Reviewed-by: Jeffle Xu <jefflexu@linux.alibaba.com> Reviewed-by: Gao Xiang <hsiangkao@linux.alibaba.com> Link: https://lore.kernel.org/r/20220817065200.11543-1-yinxin.x@bytedance.com/ # v1 Link: https://lore.kernel.org/r/20220825020945.2293-1-yinxin.x@bytedance.com/ # v2		2022-08-31 16:41:10 +01:00
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cache.c
daemon.c
error_inject.c
interface.c
internal.h	cachefiles: make on-demand request distribution fairer	2022-08-31 16:41:10 +01:00
io.c
Kconfig
key.c
main.c
Makefile
namei.c
ondemand.c	cachefiles: make on-demand request distribution fairer	2022-08-31 16:41:10 +01:00
security.c
volume.c
xattr.c