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7f7329f092
Apparently, invoking fcntl(fd, F_SETFL, O_DIRECT) will lead to unexpected behaviour on Linux bcachefs and possibly other file systems, depending on the operating system version. So, let us avoid doing that, and instead just attempt to pass the O_DIRECT flag to open(). This should make us compatible with NetBSD, IBM AIX, as well as Solaris and its derivatives. This fix does not change the fact that we had only implemented innodb_log_file_buffering=OFF on systems where we can determine the physical block size (typically 512 or 4096 bytes). Currently, those operating systems are Linux and Microsoft Windows. HAVE_FCNTL_DIRECT, os_file_set_nocache(): Remove. OS_FILE_OVERWRITE, OS_FILE_CREATE_PATH: Remove (never used parameters). os_file_log_buffered(), os_file_log_maybe_unbuffered(): Helper functions. os_file_create_simple_func(): When applicable, initially attempt to open files in O_DIRECT mode. os_file_create_func(): When applicable, initially attempt to open files in O_DIRECT mode. For type==OS_LOG_FILE && create_mode != OS_FILE_CREATE we will first invoke stat(2) on the file name to find out if the size is compatible with O_DIRECT. If create_mode == OS_FILE_CREATE, we will invoke fstat(2) on the created log file afterwards, and may close and reopen the file in O_DIRECT mode if applicable. create_temp_file(): Support O_DIRECT. This is only used if O_TMPFILE is available and innodb_disable_sort_file_cache=ON (non-default value). Notably, that setting never worked on Microsoft Windows. row_merge_file_create_mode(): Split from row_merge_file_create_low(). Create a temporary file in the specified mode. Reviewed by: Vladislav Vaintroub |
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| build_configurations | ||
| Internal/CPack | ||
| os | ||
| abi_check.cmake | ||
| aws_sdk.cmake | ||
| build_depends.cmake | ||
| character_sets.cmake | ||
| check_compiler_flag.cmake | ||
| check_linker_flag.cmake | ||
| compile_flags.cmake | ||
| configurable_file_content.in | ||
| configure.pl | ||
| cpack_deb.cmake | ||
| cpack_rpm.cmake | ||
| cpack_source_ignore_files.cmake | ||
| cpack_tgz.cmake | ||
| cpu_info.cmake | ||
| create_initial_db.cmake | ||
| ctest.cmake | ||
| do_abi_check.cmake | ||
| dtrace_prelink.cmake | ||
| dtrace.cmake | ||
| FindBISON.cmake | ||
| FindGit.cmake | ||
| FindJava.cmake | ||
| FindJNI.cmake | ||
| FindLIBAIO.cmake | ||
| FindLZ4.cmake | ||
| FindLZO.cmake | ||
| FindPMEM.cmake | ||
| FindSnappy.cmake | ||
| FindURING.cmake | ||
| FindZSTD.cmake | ||
| for_clients.cmake | ||
| info_bin.cmake | ||
| info_macros.cmake.in | ||
| info_src.cmake | ||
| install_layout.cmake | ||
| install_macros.cmake | ||
| jemalloc.cmake | ||
| libfmt.cmake | ||
| libutils.cmake | ||
| maintainer.cmake | ||
| make_dist.cmake.in | ||
| mariadb_connector_c.cmake | ||
| merge_archives_unix.cmake | ||
| misc.cmake | ||
| mysql_add_executable.cmake | ||
| mysql_version.cmake | ||
| numa.cmake | ||
| package_name.cmake | ||
| pcre.cmake | ||
| plugin.cmake | ||
| readline.cmake | ||
| sign.cmake.in | ||
| ssl.cmake | ||
| submodules.cmake | ||
| symlinks.cmake | ||
| systemd.cmake | ||
| tags.cmake | ||
| versioninfo.rc.in | ||
| win_compatibility.manifest | ||
| wsrep.cmake | ||
| zlib.cmake | ||