tools/memory-model: Add documentation about SRCU read-side critical sections

Expand the discussion of SRCU and its read-side critical sections in
the Linux Kernel Memory Model documentation file explanation.txt.  The
new material discusses recent changes to the memory model made in
commit 6cd244c87428 ("tools/memory-model: Provide exact SRCU
semantics").

Signed-off-by: Alan Stern <[email protected]>
Co-developed-by: Joel Fernandes (Google) <[email protected]>
Signed-off-by: Joel Fernandes (Google) <[email protected]>
Reviewed-by: Akira Yokosawa <[email protected]>
Cc: Andrea Parri <[email protected]>
Cc: Boqun Feng <[email protected]>
Cc: Jade Alglave <[email protected]>
Cc: Jonas Oberhauser <[email protected]>
Cc: Luc Maranget <[email protected]>
Cc: "Paul E. McKenney" <[email protected]>
Cc: Peter Zijlstra <[email protected]>
CC: Will Deacon <[email protected]>
Signed-off-by: Paul E. McKenney <[email protected]>

0 files changed, 0 insertions, 0 deletions