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mdbx: использование msync(MS_ASYNC) для спиллинга в режиме MDBX_WRITEMAP вне зависимости от MDBX_AVOID_MSYNC и MDBX_MMAP_USE_MS_ASYNC.

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This commit is contained in:
Леонид Юрьев (Leonid Yuriev)
2022-12-14 11:43:22 +03:00
parent e9a2042df1
commit fe55f25665
4 changed files with 123 additions and 126 deletions
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5
src/osal.c
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@@ -1566,6 +1566,7 @@ MDBX_INTERNAL_FUNC int osal_fsync(mdbx_filehandle_t fd,
* see http://www.spinics.net/lists/linux-ext4/msg33714.html */
while (1) {
switch (mode_bits & (MDBX_SYNC_DATA | MDBX_SYNC_SIZE)) {
case MDBX_SYNC_NONE:
case MDBX_SYNC_KICK:
return MDBX_SUCCESS /* nothing to do */;
#if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
@@ -1707,7 +1708,7 @@ MDBX_INTERNAL_FUNC int osal_thread_join(osal_thread_t thread) {
MDBX_INTERNAL_FUNC int osal_msync(const osal_mmap_t *map, size_t offset,
size_t length,
enum osal_syncmode_bits mode_bits) {
if (!MDBX_MMAP_USE_MS_ASYNC && mode_bits == MDBX_SYNC_KICK)
if (!MDBX_MMAP_USE_MS_ASYNC && mode_bits == MDBX_SYNC_NONE)
return MDBX_SUCCESS;
void *ptr = ptr_disp(map->base, offset);
@@ -1727,7 +1728,7 @@ MDBX_INTERNAL_FUNC int osal_msync(const osal_mmap_t *map, size_t offset,
// NOTE: The MDBX_MMAP_USE_MS_ASYNC must be defined to 1 for such cases.
//
// assert(linux_kernel_version > 0x02061300);
// if (mode_bits == MDBX_SYNC_KICK)
// if (mode_bits <= MDBX_SYNC_KICK)
// return MDBX_SUCCESS;
#endif /* Linux */
if (msync(ptr, length, (mode_bits & MDBX_SYNC_DATA) ? MS_SYNC : MS_ASYNC))