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Linux 3.5 compat, iops->truncate_range() removed

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The vmtruncate_range() support has been removed from the kernel in
favor of using the fallocate method in the file_operations table.

Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #784
This commit is contained in:
Richard Yao
2012-07-23 11:11:25 -07:00
committed by Brian Behlendorf
parent 756c3e5a9c
commit ea1fdf46e2
60 changed files with 225 additions and 0 deletions
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config/kernel-truncate-range.m4
+24
View File
@@ -0,0 +1,24 @@
dnl #
dnl # 3.5.0 API change
dnl # torvalds/linux@17cf28afea2a1112f240a3a2da8af883be024811 removed
dnl # truncate_range(). The file hole punching functionality is now
dnl # provided by fallocate()
dnl #
AC_DEFUN([ZFS_AC_KERNEL_TRUNCATE_RANGE], [
AC_MSG_CHECKING([whether iops->truncate_range() exists])
ZFS_LINUX_TRY_COMPILE([
#include <linux/fs.h>
void truncate_range(struct inode *inode, loff_t start,
loff_t end) { return; }
static struct inode_operations iops __attribute__ ((unused)) = {
.truncate_range = truncate_range,
};
],[
],[
AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_INODE_TRUNCATE_RANGE, 1,
[iops->truncate_range() exists])
],[
AC_MSG_RESULT(no)
])
])
config/kernel.m4
+1
View File
@@ -47,6 +47,7 @@ AC_DEFUN([ZFS_AC_CONFIG_KERNEL], [
ZFS_AC_KERNEL_NR_CACHED_OBJECTS
ZFS_AC_KERNEL_FREE_CACHED_OBJECTS
ZFS_AC_KERNEL_FALLOCATE
ZFS_AC_KERNEL_TRUNCATE_RANGE
ZFS_AC_KERNEL_CREATE_UMODE_T
ZFS_AC_KERNEL_AUTOMOUNT
ZFS_AC_KERNEL_ENCODE_FH_WITH_INODE