Re: [PATCH v3 03/10] uaccess: Add masked_user_{read/write}_access_begin
From: Thomas Gleixner <hidden>
Date: 2025-10-22 17:05:11
Also in:
linux-block, linux-fsdevel, lkml, netdev
From: Thomas Gleixner <hidden>
Date: 2025-10-22 17:05:11
Also in:
linux-block, linux-fsdevel, lkml, netdev
On Fri, Oct 17 2025 at 12:20, Christophe Leroy wrote:
Allthough masked_user_access_begin() is to only be used when reading data from user at the moment, introduce masked_user_read_access_begin() and masked_user_write_access_begin() in order to match user_read_access_begin() and user_write_access_begin(). That means masked_user_read_access_begin() is used when user memory is exclusively read during the window, masked_user_write_access_begin() is used when user memory is exclusively writen during the window, masked_user_access_begin() remains and is used when both reads and writes are performed during the open window. Each of them is expected to be terminated by the matching user_read_access_end(), user_write_access_end() and user_access_end(). Have them default to masked_user_access_begin() when they are not defined. Signed-off-by: Christophe Leroy <redacted>
Can we please coordinate on that vs. the scoped_access() work as this
nicely collides all over the place?
Thanks,
tglx