Murilo Opsfelder Araujo 53adb9d43e mmap-alloc: fix hugetlbfs misaligned length in ppc64 ... The commit 7197fb4058 ("util/mmap-alloc: fix hugetlb support on ppc64") fixed Huge TLB mappings on ppc64. However, we still need to consider the underlying huge page size during munmap() because it requires that both address and length be a multiple of the underlying huge page size for Huge TLB mappings. Quote from "Huge page (Huge TLB) mappings" paragraph under NOTES section of the munmap(2) manual: "For munmap(), addr and length must both be a multiple of the underlying huge page size." On ppc64, the munmap() in qemu_ram_munmap() does not work for Huge TLB mappings because the mapped segment can be aligned with the underlying huge page size, not aligned with the native system page size, as returned by getpagesize(). This has the side effect of not releasing huge pages back to the pool after a hugetlbfs file-backed memory device is hot-unplugged. This patch fixes the situation in qemu_ram_mmap() and qemu_ram_munmap() by considering the underlying page size on ppc64. After this patch, memory hot-unplug releases huge pages back to the pool. Fixes: 7197fb4058 Signed-off-by: Murilo Opsfelder Araujo <muriloo@linux.ibm.com> Reviewed-by: Greg Kurz <groug@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>		2019-02-04 18:44:20 +11:00
..
acl.c	Drop Emacs local variables lists redundant with .dir-locals.el	2016-07-12 16:19:16 +02:00
aio-posix.c	aio-posix: Fix concurrent aio_poll/set_fd_handler.	2019-01-14 14:09:41 +00:00
aio-wait.c	block: Use a single global AioWait	2018-09-25 15:50:15 +02:00
aio-win32.c	aio-posix: Fix concurrent aio_poll/set_fd_handler.	2019-01-14 14:09:41 +00:00
aiocb.c	block: move AioContext, QEMUTimer, main-loop to libqemuutil	2017-02-21 11:14:07 +00:00
async.c	util/async: use qemu_aio_coroutine_enter in co_schedule_bh_cb	2018-09-25 15:50:15 +02:00
atomic64.c	util: add atomic64	2018-10-02 18:47:55 +02:00
base64.c	include/qemu/osdep.h: Don't include qapi/error.h	2016-03-22 22:20:15 +01:00
bitmap.c	bitmap: provide to_le/from_le helpers	2017-09-22 14:11:25 +02:00
bitops.c	avoid TABs in files that only contain a few	2019-01-11 15:46:56 +01:00
buffer.c	qemu-common: stop including qemu/host-utils.h from qemu-common.h	2016-05-19 16:42:28 +02:00
bufferiszero.c	util: Introduce include/qemu/cpuid.h	2017-07-24 12:42:55 +01:00
cacheinfo.c	util: add atomic64	2018-10-02 18:47:55 +02:00
compatfd.c	cpus: remove ugly cast on sigbus_handler	2017-03-03 16:40:02 +01:00
coroutine-sigaltstack.c	coroutine-sigaltstack: use helper for allocating stack memory	2016-09-29 14:13:39 +02:00
coroutine-ucontext.c	build: try improve handling of clang warnings	2018-03-12 08:59:03 +01:00
coroutine-win32.c	coroutine: add a macro for the coroutine stack size	2016-09-29 14:13:39 +02:00
crc32c.c	util: Clean up includes	2016-02-04 17:01:04 +00:00
cutils.c	cutils: Fix qemu_strtosz() & friends to reject non-finite sizes	2018-12-13 19:10:06 +01:00
drm.c	util: promote qemu_egl_rendernode_open() to libqemuutil	2018-08-27 10:51:44 +02:00
envlist.c	util: Use g_malloc/g_free in envlist.c	2017-05-07 09:57:51 +03:00
error.c	error: Fix use of error_prepend() with &error_fatal, &error_abort	2018-10-19 14:51:34 +02:00
event_notifier-posix.c	Revert "qemu: add a cleanup callback function to EventNotifier"	2018-01-24 19:20:19 +02:00
event_notifier-win32.c	Revert "qemu: add a cleanup callback function to EventNotifier"	2018-01-24 19:20:19 +02:00
fifo8.c	migration: consolidate VMStateField.start	2017-02-13 17:27:13 +00:00
getauxval.c	util: Clean up includes	2016-02-04 17:01:04 +00:00
hbitmap.c	Revert "hbitmap: Add @advance param to hbitmap_iter_next()"	2019-01-15 18:26:50 -05:00
hexdump.c	util: Improved qemu_hexmap() to include an ascii dump of the buffer	2016-04-06 09:52:07 +08:00
host-utils.c	host-utils: Implement unsigned quadword left/right shift and unit tests	2017-01-31 10:10:14 +11:00
id.c	util: move declarations out of qemu-common.h	2016-03-22 22:20:17 +01:00
iohandler.c	block: move AioContext, QEMUTimer, main-loop to libqemuutil	2017-02-21 11:14:07 +00:00
iov.c	util: Fix assertion in iov_copy() upon zero 'bytes' and non-zero 'offset'	2016-08-03 18:44:57 +02:00
iova-tree.c	util: remove redundant include of glib.h and add osdep.h	2018-06-29 12:22:28 +01:00
keyval.c	qobject: Replace qobject_incref/QINCREF qobject_decref/QDECREF	2018-05-04 08:27:53 +02:00
lockcnt.c	qemu-thread: optimize QemuLockCnt with futexes on Linux	2017-01-16 13:25:18 +00:00
log.c	tcg: Optionally log FPU state in TCG -d cpu logging	2018-05-15 14:58:44 +01:00
main-loop.c	Fix segmentation fault when qemu_signal_init fails	2019-01-23 15:02:07 +00:00
Makefile.objs	util: add atomic64	2018-10-02 18:47:55 +02:00
memfd.c	hostmem-memfd: add checks before adding hostmem-memfd & properties	2018-10-02 18:47:55 +02:00
mmap-alloc.c	mmap-alloc: fix hugetlbfs misaligned length in ppc64	2019-02-04 18:44:20 +11:00
module.c	module: Use QEMU_MODULE_DIR as a search path	2018-08-23 18:46:25 +02:00
notify.c	util: Clean up includes	2016-02-04 17:01:04 +00:00
osdep.c	avoid TABs in files that only contain a few	2019-01-11 15:46:56 +01:00
oslib-posix.c	mmap-alloc: fix hugetlbfs misaligned length in ppc64	2019-02-04 18:44:20 +11:00
oslib-win32.c	util: add qemu_write_pidfile()	2018-10-02 18:47:55 +02:00
pagesize.c	util: move qemu_real_host_page_size/mask to osdep.h	2017-10-10 09:45:00 -07:00
path.c	util: Removed unneeded header from path.c	2017-03-14 13:26:37 +01:00
qdist.c	qdist: return "(empty)" instead of NULL when printing an empty dist	2016-08-03 18:44:56 +02:00
qemu-config.c	block: Add block-specific QDict header	2018-06-15 14:49:44 +02:00
qemu-coroutine-io.c	coroutine: move entry argument to qemu_coroutine_create	2016-07-13 13:26:02 +02:00
qemu-coroutine-lock.c	coroutine: avoid co_queue_wakeup recursion	2018-03-27 13:05:28 +01:00
qemu-coroutine-sleep.c	qemu-coroutine-sleep: drop CoSleepCB	2019-01-24 10:05:16 +00:00
qemu-coroutine.c	block: Add missing locking in bdrv_co_drain_bh_cb()	2018-09-25 15:50:15 +02:00
qemu-error.c	error: Drop bogus "use error_setg() instead" admonitions	2018-10-19 15:47:09 +02:00
qemu-openpty.c	util: Clean up includes	2016-02-04 17:01:04 +00:00
qemu-option.c	qemu/queue.h: simplify reverse access to QTAILQ	2019-01-11 15:46:55 +01:00
qemu-progress.c	progress: Show current progress on SIGINFO	2017-04-28 18:48:11 +02:00
qemu-sockets.c	avoid TABs in files that only contain a few	2019-01-11 15:46:56 +01:00
qemu-thread-common.h	Clean up includes	2018-12-20 10:29:08 +01:00
qemu-thread-posix.c	qemu-thread: Don't block SEGV, ILL and FPE	2019-01-08 12:34:46 +00:00
qemu-thread-win32.c	build-sys: build with Vista API by default	2019-01-11 13:57:25 +01:00
qemu-timer-common.c	util: Clean up includes	2016-02-04 17:01:04 +00:00
qemu-timer.c	qemu-timer: avoid checkpoints for virtual clock timers in external subsystems	2018-10-19 13:44:03 +02:00
qht.c	qht: constify arguments to some internal functions	2018-09-26 08:55:54 -07:00
qsp.c	include: move exec/tb-hash-xx.h to qemu/xxhash.h	2018-12-17 06:04:44 +03:00
range.c	Don't talk about the LGPL if the file is licensed under the GPL	2019-01-30 10:51:20 +01:00
rcu.c	membarrier: introduce qemu/sys_membarrier.h	2018-03-12 16:12:47 +01:00
readline.c	readline: don't free completions in readline_free()	2018-02-05 13:54:39 +01:00
stats64.c	util/stats64: Fix min/max comparisons	2017-11-15 09:34:51 +01:00
sys_membarrier.c	sys_membarrier: fix up include directives	2018-04-05 14:37:38 +02:00
systemd.c	qemu-ga: obey LISTEN_PID when using systemd socket activation	2017-03-19 11:12:12 +01:00
thread-pool.c	thread-pool: add missing qemu_bh_cancel in completion function	2017-03-17 12:54:21 +01:00
throttle.c	throttle: Assert that bkt->max is valid in throttle_compute_wait()	2017-09-26 14:46:23 +02:00
timed-average.c	Fix some typos found by codespell	2016-05-18 15:04:27 +03:00
trace-events	aio-posix: compute timeout before polling	2018-09-26 10:46:21 +08:00
unicode.c	json: Reject invalid UTF-8 sequences	2018-08-24 20:26:37 +02:00
uri.c	cutils: Provide strchrnul	2018-06-29 12:32:10 +02:00
uuid.c	uuid: Make qemu_uuid_bswap() take and return a QemuUUID	2019-02-01 13:46:45 +01:00
vfio-helpers.c	util: vfio-helpers: use ARRAY_SIZE in qemu_vfio_init_pci()	2018-12-11 18:28:47 +01:00