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-rw-r--r--config/kernel-lseek-execute.m423
1 files changed, 23 insertions, 0 deletions
diff --git a/config/kernel-lseek-execute.m4 b/config/kernel-lseek-execute.m4
new file mode 100644
index 000000000..8c4032b92
--- /dev/null
+++ b/config/kernel-lseek-execute.m4
@@ -0,0 +1,23 @@
+dnl #
+dnl # 3.11 API change
+dnl # lseek_execute helper exported
+dnl #
+AC_DEFUN([ZFS_AC_KERNEL_LSEEK_EXECUTE],
+ [AC_MSG_CHECKING([whether lseek_execute() is available])
+ ZFS_LINUX_TRY_COMPILE_SYMBOL([
+ #include <linux/fs.h>
+ ], [
+ struct file *fp __attribute__ ((unused)) = NULL;
+ struct inode *ip __attribute__ ((unused)) = NULL;
+ loff_t offset __attribute__ ((unused)) = 0;
+ loff_t maxsize __attribute__ ((unused)) = 0;
+
+ lseek_execute(fp, ip, offset, maxsize);
+ ], [lseek_exclusive], [fs/read_write.c], [
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_LSEEK_EXECUTE, 1,
+ [lseek_execute() is available])
+ ], [
+ AC_MSG_RESULT(no)
+ ])
+])