Jens, Pavel, The allocation paths that use alloc_cache duplicate the same code pattern, sometimes in a quite convoluted way. This series cleans up that code by folding the allocation into the cache code itself, making it just an allocator function, and keeping the cache policy invisible to callers. A bigger justification for doing this, beyond code simplicity, is that it makes it trivial to test the impact of disabling the cache and using slab directly, which I've used for slab improvement experiments. I think this is one step forward in the direction eventually lifting the alloc_cache into a proper magazine layer in slab out of io_uring. It survived liburing testsuite, and when microbenchmarking the read-write path with mmtests and fio, I didn't observe any significant performance variation (there was actually a 2% gain, but that was within the variance of the test runs, making it not signficant and surely test noise). I'm specifically interested, and happy to do so, if there are specific benchmarks you'd like me to run it against. Thanks, Gabriel Krisman Bertazi (9): io_uring: Fold allocation into alloc_cache helper io_uring: Add generic helper to allocate async data io_uring/futex: Allocate ifd with generic alloc_cache helper io_uring/poll: Allocate apoll with generic alloc_cache helper io_uring/uring_cmd: Allocate async data through generic helper io_uring/net: Allocate msghdr async data through helper io_uring/rw: Allocate async data through helper io_uring: Move old async data allocation helper to header io_uring/msg_ring: Drop custom destructor io_uring/alloc_cache.h | 7 +++++++ io_uring/futex.c | 13 +------------ io_uring/io_uring.c | 17 ++--------------- io_uring/io_uring.h | 22 ++++++++++++++++++++++ io_uring/msg_ring.c | 7 ------- io_uring/msg_ring.h | 1 - io_uring/net.c | 28 ++++++++++------------------ io_uring/poll.c | 13 +++++-------- io_uring/rw.c | 28 ++++++++-------------------- io_uring/timeout.c | 5 ++--- io_uring/uring_cmd.c | 20 ++------------------ io_uring/waitid.c | 4 ++-- 12 files changed, 61 insertions(+), 104 deletions(-) -- 2.47.0
