Files
linux/lib
Christophe Leroy 4322c8f81c lib/strn*,uaccess: Use masked_user_{read/write}_access_begin when required
Properly use masked_user_read_access_begin() and
masked_user_write_access_begin() instead of masked_user_access_begin() in
order to match user_read_access_end() and user_write_access_end().  This is
important for architectures like PowerPC that enable separately user reads
and user writes.

That means masked_user_read_access_begin() is used when user memory is
exclusively read during the window and 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().

Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://patch.msgid.link/cb5e4b0fa49ea9c740570949d5e3544423389757.1763396724.git.christophe.leroy@csgroup.eu
2025-11-18 15:27:35 +01:00
..
2024-12-12 18:26:32 +01:00
2025-03-16 22:30:49 -07:00
2025-04-11 17:32:38 -07:00
2025-04-11 17:32:37 -07:00
2024-07-12 16:39:53 -07:00
2024-02-01 13:06:40 +01:00
2023-02-02 22:50:01 -08:00
2023-02-02 22:50:01 -08:00
2025-07-08 19:11:57 -04:00
2025-03-25 10:18:31 -03:00
2025-01-12 20:21:15 -08:00
2025-01-14 19:45:35 +01:00
2024-10-14 16:33:24 -05:00
2023-10-16 12:44:06 -04:00
2022-10-03 17:34:32 -07:00
2025-03-17 12:17:00 -07:00
2025-05-11 17:54:04 -07:00
2024-02-15 12:17:28 -05:00
2025-03-25 10:18:31 -03:00
2024-12-09 13:48:29 -08:00
2025-09-13 16:54:46 -07:00
2025-08-02 12:01:37 -07:00