LU-13783 osd-ldiskfs: use alloc_file_pseudo to create fake files

[fs/lustre-release.git] / lustre / autoconf / lustre-core.m4

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index daece66..659beb9 100644 (file)
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -1353,6 +1353,28 @@ bio_integrity_prep_fn, [
 ])
 ]) # LC_BIO_INTEGRITY_PREP_FN
 
+# LC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL
+#
+# 13 kernel integrity API has changed and in 4.13+
+# (as well as in rhel 8.4) bio_integrity_prep() returns boolean true
+# on success.
+#
+AC_DEFUN([LC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL], [
+LB_CHECK_COMPILE([if 'bio_integrity_prep_fn' returns bool],
+bio_integrity_prep, [
+       #include <linux/bio.h>
+       #include <linux/typecheck.h>
+],[
+       #pragma GCC diagnostic warning "-Werror"
+       typedef bool (*bio_integrity_prep_type)(struct bio *bio) ;
+
+       typecheck_fn(bio_integrity_prep_type, bio_integrity_prep);
+],[
+       AC_DEFINE(HAVE_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL, 1,
+               [bio_integrity_prep_fn returns bool])
+])
+]) # LC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL
+
 #
 # LC_HAVE_BI_OPF
 #
@@ -2191,6 +2213,26 @@ VM_FAULT_RETRY, [
 ]) # LC_VM_FAULT_RETRY
 
 #
+# LC_ALLOC_FILE_PSEUDO
+#
+# kernel 4.18-rc1 commit d93aa9d82aea80b80f225dbf9c7986df444d8106
+# new wrapper: alloc_file_pseudo()
+#
+AC_DEFUN([LC_ALLOC_FILE_PSEUDO], [
+LB_CHECK_COMPILE([if 'alloc_file_pseudo' is defined],
+alloc_file_pseudo, [
+       #include <linux/file.h>
+],[
+       struct file *file;
+       file = alloc_file_pseudo(NULL, NULL, "[test]",
+                                00000002, NULL);
+],[
+       AC_DEFINE(HAVE_ALLOC_FILE_PSEUDO, 1,
+               ['alloc_file_pseudo' exist])
+])
+]) # LC_ALLOC_FILE_PSEUDO
+
+#
 # LC_INODE_TIMESPEC64
 #
 # kernel 4.17-rc7 commit 8efd6894ff089adeeac7cb9f32125b85d963d1bc
@@ -2583,6 +2625,7 @@ AC_DEFUN([LC_PROG_LINUX], [
 
        # 4.13
        LC_BIO_INTEGRITY_ENABLED
+       LC_BIO_INTEGRITY_PREP_FN_RETURNS_BOOL
        LC_HAVE_GET_INODE_USAGE
 
        # 4.14
@@ -2596,6 +2639,7 @@ AC_DEFUN([LC_PROG_LINUX], [
        LC_I_PAGES
 
        # 4.18
+       LC_ALLOC_FILE_PSEUDO
        LC_INODE_TIMESPEC64
 
        # 4.20