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mdbx: require linux >= 4.0
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parent
cf8540d84e
commit
fe20de136c
11
src/core.c
11
src/core.c
@ -11499,6 +11499,17 @@ __cold int mdbx_env_create(MDBX_env **penv) {
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return MDBX_INCOMPATIBLE;
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}
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#if defined(__linux__) || defined(__gnu_linux__)
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if (unlikely(linux_kernel_version < 0x04000000)) {
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/* 2022-09-01: Прошло уже больше двух после окончания какой-либо поддержки
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* самого "долгоиграющего" ядра 3.16.85 ветки 3.x */
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ERROR("too old linux kernel %u.%u.%u.%u, the >= 4.0.0 is required",
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linux_kernel_version >> 24, (linux_kernel_version >> 16) & 255,
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(linux_kernel_version >> 8) & 255, linux_kernel_version & 255);
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return MDBX_INCOMPATIBLE;
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}
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#endif /* Linux */
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MDBX_env *env = osal_calloc(1, sizeof(MDBX_env));
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if (unlikely(!env))
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return MDBX_ENOMEM;
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13
src/osal.c
13
src/osal.c
@ -937,9 +937,8 @@ MDBX_INTERNAL_FUNC int osal_fsync(mdbx_filehandle_t fd,
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break /* error */;
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#if defined(__linux__) || defined(__gnu_linux__)
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case MDBX_SYNC_SIZE:
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if (linux_kernel_version >= 0x03060000)
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return MDBX_SUCCESS;
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__fallthrough /* fall through */;
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assert(linux_kernel_version >= 0x03060000);
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return MDBX_SUCCESS;
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#endif /* Linux */
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#endif /* _POSIX_SYNCHRONIZED_IO > 0 */
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default:
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@ -1076,10 +1075,10 @@ MDBX_INTERNAL_FUNC int osal_msync(osal_mmap_t *map, size_t offset,
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return (int)GetLastError();
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#else
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#if defined(__linux__) || defined(__gnu_linux__)
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if (mode_bits == MDBX_SYNC_NONE && linux_kernel_version > 0x02061300)
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/* Since Linux 2.6.19, MS_ASYNC is in fact a no-op. The kernel properly
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* tracks dirty pages and flushes them to storage as necessary. */
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return MDBX_SUCCESS;
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assert(linux_kernel_version > 0x02061300);
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/* Since Linux 2.6.19, MS_ASYNC is in fact a no-op. The kernel properly
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* tracks dirty pages and flushes them to storage as necessary. */
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return MDBX_SUCCESS;
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#endif /* Linux */
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if (msync(ptr, length, (mode_bits & MDBX_SYNC_DATA) ? MS_SYNC : MS_ASYNC))
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return errno;
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