Eric Blake d1dde7149e bitmap: Update count after a merge ...

We need an accurate count of the number of bits set in a bitmap
after a merge. In particular, since the merge operation short-circuits
a merge from an empty source, if you have bitmaps A, B, and C where
B started empty, then merge C into B, and B into A, an inaccurate
count meant that A did not get the contents of C.

In the worst case, we may falsely regard the bitmap as empty when
it has had new writes merged into it.

Fixes: be58721db
CC: qemu-stable@nongnu.org
Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20181002233314.30159-1-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>

2018-10-29 16:23:17 -04:00

..

acl.c

…

aio-posix.c

util: aio-posix: fix a typo

2018-10-29 13:35:22 +00:00

aio-wait.c

block: Use a single global AioWait

2018-09-25 15:50:15 +02:00

aio-win32.c

…

aiocb.c

…

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

…

bitmap.c

…

bitops.c

…

buffer.c

…

bufferiszero.c

…

cacheinfo.c

util: add atomic64

2018-10-02 18:47:55 +02:00

compatfd.c

…

coroutine-sigaltstack.c

…

coroutine-ucontext.c

…

coroutine-win32.c

…

crc32c.c

…

cutils.c

cutils: add qemu_pstrcmp0()

2018-10-05 16:14:22 +04:00

drm.c

util: promote qemu_egl_rendernode_open() to libqemuutil

2018-08-27 10:51:44 +02:00

envlist.c

…

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

…

event_notifier-win32.c

…

fifo8.c

…

getauxval.c

…

hbitmap.c

bitmap: Update count after a merge

2018-10-29 16:23:17 -04:00

hexdump.c

…

host-utils.c

…

id.c

…

iohandler.c

…

iov.c

…

iova-tree.c

…

keyval.c

…

lockcnt.c

…

log.c

…

main-loop.c

…

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

…

module.c

module: Use QEMU_MODULE_DIR as a search path

2018-08-23 18:46:25 +02:00

notify.c

…

osdep.c

…

oslib-posix.c

util: use fcntl() for qemu_write_pidfile() locking

2018-10-02 18:47:55 +02:00

oslib-win32.c

util: add qemu_write_pidfile()

2018-10-02 18:47:55 +02:00

pagesize.c

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path.c

…

qdist.c

…

qemu-config.c

…

qemu-coroutine-io.c

…

qemu-coroutine-lock.c

…

qemu-coroutine-sleep.c

…

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

…

qemu-option.c

qemu-option: improve qemu_opts_print_help() output

2018-10-05 16:14:22 +04:00

qemu-progress.c

…

qemu-sockets.c

…

qemu-thread-common.h

…

qemu-thread-posix.c

…

qemu-thread-win32.c

…

qemu-timer-common.c

…

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

qsp: use atomic64 accessors

2018-10-02 18:47:55 +02:00

range.c

…

rcu.c

…

readline.c

…

stats64.c

…

sys_membarrier.c

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systemd.c

…

thread-pool.c

…

throttle.c

…

timed-average.c

…

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

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uuid.c

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vfio-helpers.c

…