The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/openzfs/config/kernel-commit-metadata.m4

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    1 dnl #
    2 dnl # 2.6.33 API change
    3 dnl # Added eops->commit_metadata() callback to allow the underlying
    4 dnl # filesystem to determine the most efficient way to commit the inode.
    5 dnl # Prior to this the nfs server would issue an explicit fsync().
    6 dnl #
    7 AC_DEFUN([ZFS_AC_KERNEL_SRC_COMMIT_METADATA], [
    8         ZFS_LINUX_TEST_SRC([export_operations_commit_metadata], [
    9                 #include <linux/exportfs.h>
   10                 int commit_metadata(struct inode *inode) { return 0; }
   11                 static struct export_operations eops __attribute__ ((unused))={
   12                         .commit_metadata = commit_metadata,
   13                 };
   14         ],[])
   15 ])
   16 
   17 AC_DEFUN([ZFS_AC_KERNEL_COMMIT_METADATA], [
   18         AC_MSG_CHECKING([whether eops->commit_metadata() exists])
   19         ZFS_LINUX_TEST_RESULT([export_operations_commit_metadata], [
   20                 AC_MSG_RESULT(yes)
   21         ],[
   22                 ZFS_LINUX_TEST_ERROR([eops->commit_metadata()])
   23         ])
   24 ])

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