mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-11-17 18:11:00 +03:00
0f37d0c8be
Commit torvalds/linux@2233f31aad replaced ->readdir() with ->iterate() in struct file_operations. All filesystems must now use the new ->iterate method. To handle this the code was reworked to use the new ->iterate interface. Care was taken to keep the majority of changes confined to the ZPL layer which is already Linux specific. However, minor changes were required to the common zfs_readdir() function. Compatibility with older kernels was accomplished by adding versions of the trivial dir_emit* helper functions. Also the various *_readdir() functions were reworked in to wrappers which create a dir_context structure to pass to the new *_iterate() functions. Unfortunately, the new dir_emit* functions prevent us from passing a private pointer to the filldir function. The xattr directory code leveraged this ability through zfs_readdir() to generate the list of xattr names. Since we can no longer use zfs_readdir() a simplified zpl_xattr_readdir() function was added to perform the same task. Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #1653 Issue #1591
44 lines
989 B
Plaintext
44 lines
989 B
Plaintext
dnl #
|
|
dnl # 3.11 API change
|
|
dnl #
|
|
AC_DEFUN([ZFS_AC_KERNEL_VFS_ITERATE], [
|
|
AC_MSG_CHECKING([whether fops->iterate() is available])
|
|
ZFS_LINUX_TRY_COMPILE([
|
|
#include <linux/fs.h>
|
|
int iterate(struct file *filp, struct dir_context * context)
|
|
{ return 0; }
|
|
|
|
static const struct file_operations fops
|
|
__attribute__ ((unused)) = {
|
|
.iterate = iterate,
|
|
};
|
|
],[
|
|
],[
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_VFS_ITERATE, 1,
|
|
[fops->iterate() is available])
|
|
],[
|
|
AC_MSG_RESULT(no)
|
|
|
|
AC_MSG_CHECKING([whether fops->readdir() is available])
|
|
ZFS_LINUX_TRY_COMPILE([
|
|
#include <linux/fs.h>
|
|
int readdir(struct file *filp, void *entry, filldir_t func)
|
|
{ return 0; }
|
|
|
|
static const struct file_operations fops
|
|
__attribute__ ((unused)) = {
|
|
.readdir = readdir,
|
|
};
|
|
],[
|
|
],[
|
|
AC_MSG_RESULT(yes)
|
|
AC_DEFINE(HAVE_VFS_READDIR, 1,
|
|
[fops->readdir() is available])
|
|
],[
|
|
AC_MSG_ERROR(no; file a bug report with ZFSOnLinux)
|
|
])
|
|
|
|
])
|
|
])
|