Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/
The SPDX folks have obsoleted the BSD-2-Clause-FreeBSD identifier. Catch up to that fact and revert to their recommended match of BSD-2-Clause. Discussed with: pfg MFC After: 3 days Sponsored by: Netflix
- UMA_XDOMAIN enables an additional per-cpu bucket for freed memory that was freed on a different domain from where it was allocated. This is only used for UMA_ZONE_NUMA (first-touch) zones. - UMA_FIRSTTOUCH sets the default UMA policy to be first-touch for all zones. This tries to maintain locality for kernel memory. Reviewed by: gallatin, alc, kib Tested by: pho, gallatin Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D20929
Mainly focus on files that use BSD 2-Clause license, however the tool I was using mis-identified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts.
Sponsored by: Nginx, Inc.
dynamic memory allocation to hold per-CPU memory types data (sized to mp_maxid for UMA, and to mp_maxcpus for malloc to match the kernel). That fixes libmemstat with arbitrary large MAXCPU values and therefore eliminates MEMSTAT_ERROR_TOOMANYCPUS error type. Reviewed by: jhb Approved by: re (kib)
of times the system was forced to sleep when requesting a new allocation. Expand the debugger hook, db_show_uma, to display these results as well. This has proven to be very useful in out of memory situations when it is not known why systems have become sluggish or fail in odd ways. Reviewed by: rwatson alc Approved by: scottl (mentor) peter Obtained from: Yahoo Inc.
- Move memory_type_list flushing logic from memstat_mtl_free() to _memstat_mtl_empty(), a libmemstat-internal function that can be called from other parts of the library. Invoke _memstat_mtl_empty() from memstat_mtl_free(), which also frees the containing list structure. Invoke _memstat_mtl_empty() instead of memstat_mtl_free() in various error cases in memstat_malloc.c and memstat_uma.c, which previously resulted in the list being freed prematurely. - Reverse the order of updating the mt_kegfree and mt_free fields of the memory_type in memstat_uma.c, otherwise keg free items won't be counted properly for non-secondary zones. MFC after: 3 days
- Define a set of libmemstat(3) error constants, which are used by all libmemstat(3) methods except for memstat_mtl_alloc(), which allocates a memory type list and may return ENOMEM via errno. - Define a per-memory_type_list current error value, which is set when a call associated with a memory list fails. This requires wrapping a structure around the queue(9) list head data structure, but this change is not visible to libmemstat(3) consumers due to using access methods. - Add a new accessor method, memstat_mtl_geterror() to retrieve the error number. - Consistently set the error number in a number of failure modes where previously some combination of setting errno and printf'ing error descriptions was used. libmemstat(3) will now no longer print to stdio under any circumstances. Returns of NULL/-1 for errors remain the same. This avoids use of stdio, misuse of error numbers, and should make it easier to program a libmemstat(3) consumer able to print useful error messages. Currently, no error-to-string function is provided, as I'm unsure how to address internationalization concerns. MFC after: 1 day
try and discourage use outside the library. Remove duplicate declaration of memstat_mtl_free() from memstat_internal.h, as it's not internal, and the memstat.h definition suffices.