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f94e9141a0
Provide a way to disable the use of posix_fallocate() for relation files. It was introduced by commit 4d330a61bb1. The new setting file_extend_method=write_zeros can be used as a workaround for problems reported from the field: * BTRFS compression is disabled by the use of posix_fallocate() * XFS could produce spurious ENOSPC errors in some Linux kernel versions, though that problem is reported to have been fixed The default is file_extend_method=posix_fallocate if available, as before. The write_zeros option is similar to PostgreSQL < 16, except that now it's multi-block. Backpatch-through: 16 Reviewed-by: Jakub Wartak <jakub.wartak@enterprisedb.com> Reported-by: Dimitrios Apostolou <jimis@gmx.net> Discussion: https://postgr.es/m/b1843124-fd22-e279-a31f-252dffb6fbf2%40gmx.net