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| author | Marc-André Lureau <marcandre.lureau@redhat.com> | 2022-04-20 17:26:03 +0400 |
|---|---|---|
| committer | Marc-André Lureau <marcandre.lureau@redhat.com> | 2022-04-21 17:03:51 +0400 |
| commit | 73991a922217a499ffb19fa254b1fda8bfac42c4 (patch) | |
| tree | dc2f89876b4b68a789bd515d79de5ac651713446 /include/qemu | |
| parent | 8905770b27be326d12a704629f3cb715642db6cc (diff) | |
| download | qemu-73991a922217a499ffb19fa254b1fda8bfac42c4.zip qemu-73991a922217a499ffb19fa254b1fda8bfac42c4.tar.gz qemu-73991a922217a499ffb19fa254b1fda8bfac42c4.tar.bz2 | |
include: move qemu_msync() to osdep
The implementation depends on the OS. (and longer-term goal is to move
cutils to a common subproject)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220420132624.2439741-21-marcandre.lureau@redhat.com>
Diffstat (limited to 'include/qemu')
| -rw-r--r-- | include/qemu/cutils.h | 1 | ||||
| -rw-r--r-- | include/qemu/osdep.h | 13 |
2 files changed, 13 insertions, 1 deletions
diff --git a/include/qemu/cutils.h b/include/qemu/cutils.h index e873bad..fb47ec9 100644 --- a/include/qemu/cutils.h +++ b/include/qemu/cutils.h @@ -130,7 +130,6 @@ const char *qemu_strchrnul(const char *s, int c); #endif time_t mktimegm(struct tm *tm); int qemu_fdatasync(int fd); -int qemu_msync(void *addr, size_t length, int fd); int qemu_parse_fd(const char *param); int qemu_strtoi(const char *nptr, const char **endptr, int base, int *result); diff --git a/include/qemu/osdep.h b/include/qemu/osdep.h index 14b6b65..bf4f75d 100644 --- a/include/qemu/osdep.h +++ b/include/qemu/osdep.h @@ -642,6 +642,19 @@ static inline void qemu_reset_optind(void) } /** + * Sync changes made to the memory mapped file back to the backing + * storage. For POSIX compliant systems this will fallback + * to regular msync call. Otherwise it will trigger whole file sync + * (including the metadata case there is no support to skip that otherwise) + * + * @addr - start of the memory area to be synced + * @length - length of the are to be synced + * @fd - file descriptor for the file to be synced + * (mandatory only for POSIX non-compliant systems) + */ +int qemu_msync(void *addr, size_t length, int fd); + +/** * qemu_get_host_name: * @errp: Error object * |