Vincent Donnefort eb2dcde9f9 ring-buffer: Align meta-page to sub-buffers for improved TLB usage ... Previously, the mapped ring-buffer layout caused misalignment between the meta-page and sub-buffers when the sub-buffer size was not a multiple of PAGE_SIZE. This prevented hardware with larger TLB entries from utilizing them effectively. Add a padding with the zero-page between the meta-page and sub-buffers. Also update the ring-buffer map_test to verify that padding. Link: https://lore.kernel.org/20240628104611.1443542-1-vdonnefort@google.com Signed-off-by: Vincent Donnefort <vdonnefort@google.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>		2024-08-26 13:42:23 -04:00
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Makefile	selftests: centralize -D_GNU_SOURCE= to CFLAGS in lib.mk	2024-07-10 12:14:51 -07:00
map_test.c	ring-buffer: Align meta-page to sub-buffers for improved TLB usage	2024-08-26 13:42:23 -04:00