Brian Behlendorf 837e426c1f Linux: Never sleep in kmem_cache_alloc(..., KM_NOSLEEP) (#14926) ... When a kmem cache is exhausted and needs to be expanded a new slab is allocated. KM_SLEEP callers can block and wait for the allocation, but KM_NOSLEEP callers were incorrectly allowed to block as well. Resolve this by attempting an emergency allocation as a best effort. This may fail but that's fine since any KM_NOSLEEP consumer is required to handle an allocation failure. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Adam Moss <c@yotes.com> Reviewed-by: Brian Atkinson <batkinson@lanl.gov> Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu> Reviewed-by: Tony Hutter <hutter2@llnl.gov>		2023-09-11 15:17:41 -07:00
..
freebsd	Speed up WB_SYNC_NONE when a WB_SYNC_ALL occurs simultaneously	2023-06-05 10:59:02 -07:00
linux	Linux: Never sleep in kmem_cache_alloc(..., KM_NOSLEEP) (#14926)	2023-09-11 15:17:41 -07:00