[PATCH AUTOSEL 6.14 26/31] um: Rewrite the sigio workaround based on epoll and tgkill

From: Tiwei Bie [ Upstream commit 33c9da5dfb18c2ff5a88d01aca2cf253cd0ac3bc ] The existing sigio workaround implementation removes FDs from the poll when events are triggered, requiring users to re-add them via add_sigio_fd() after processing. This introduces a potential race condition between FD

Re: [PATCH AUTOSEL 6.14 26/31] um: Rewrite the sigio workaround based on epoll and tgkill

On 2025/4/8 02:10, Sasha Levin wrote: > From: Tiwei Bie > > [ Upstream commit 33c9da5dfb18c2ff5a88d01aca2cf253cd0ac3bc ] > > The existing sigio workaround implementation removes FDs from the > poll when events are triggered, requiring users to re-add them via > add_sigio_fd() after processing. T