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pinkbyte-overlay/sys-kernel/spl/files/spl-0.6.0-kernel-3.1-compat.patch

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add kernel 3.1 compatibility patch for spl in order to fix issue #2
2012-01-21 18:20:22 +04:00
diff --git a/config/spl-build.m4 b/config/spl-build.m4
index c046db8..d0bd97c 100644
--- a/config/spl-build.m4
+++ b/config/spl-build.m4
@@ -68,19 +68,21 @@ AC_DEFUN([SPL_AC_CONFIG_KERNEL], [
SPL_AC_2ARGS_SET_FS_PWD
SPL_AC_2ARGS_VFS_UNLINK
SPL_AC_4ARGS_VFS_RENAME
+ SPL_AC_VFS_FSYNC
+ SPL_AC_2ARGS_VFS_FSYNC
SPL_AC_FS_STRUCT_SPINLOCK
SPL_AC_CRED_STRUCT
SPL_AC_GROUPS_SEARCH
SPL_AC_PUT_TASK_STRUCT
SPL_AC_5ARGS_PROC_HANDLER
SPL_AC_KVASPRINTF
- SPL_AC_3ARGS_FILE_FSYNC
SPL_AC_EXPORTED_RWSEM_IS_LOCKED
SPL_AC_KERNEL_INVALIDATE_INODES
SPL_AC_KERNEL_2ARGS_INVALIDATE_INODES
SPL_AC_SHRINK_DCACHE_MEMORY
SPL_AC_SHRINK_ICACHE_MEMORY
- SPL_AC_KERN_PATH_PARENT
+ SPL_AC_KERN_PATH_PARENT_HEADER
+ SPL_AC_KERN_PATH_PARENT_SYMBOL
SPL_AC_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE
SPL_AC_SHRINK_CONTROL_STRUCT
])
@@ -588,6 +590,30 @@ AC_DEFUN([SPL_CHECK_SYMBOL_EXPORT],
])
dnl #
+dnl # SPL_CHECK_SYMBOL_HEADER
+dnl # check if a symbol prototype is defined in listed headers.
+dnl #
+AC_DEFUN([SPL_CHECK_SYMBOL_HEADER], [
+ AC_MSG_CHECKING([whether symbol $1 exists in header])
+ header=0
+ for file in $3; do
+ grep -q "$2" "$LINUX/$file" 2>/dev/null
+ rc=$?
+ if test $rc -eq 0; then
+ header=1
+ break;
+ fi
+ done
+ if test $header -eq 0; then
+ AC_MSG_RESULT([no])
+ $5
+ else
+ AC_MSG_RESULT([yes])
+ $4
+ fi
+])
+
+dnl #
dnl # SPL_CHECK_HEADER
dnl # check whether header exists and define HAVE_$2_HEADER
dnl #
@@ -1693,19 +1719,30 @@ AC_DEFUN([SPL_AC_KVASPRINTF], [
])
dnl #
+dnl # 2.6.29 API change,
+dnl # vfs_fsync() funcation added, prior to this use file_fsync().
+dnl #
+AC_DEFUN([SPL_AC_VFS_FSYNC], [
+ SPL_CHECK_SYMBOL_EXPORT(
+ [vfs_fsync],
+ [fs/sync.c],
+ [AC_DEFINE(HAVE_VFS_FSYNC, 1, [vfs_fsync() is available])],
+ [])
+])
+
+dnl #
dnl # 2.6.35 API change,
-dnl # Unused 'struct dentry *' removed from prototype.
+dnl # Unused 'struct dentry *' removed from vfs_fsync() prototype.
dnl #
-AC_DEFUN([SPL_AC_3ARGS_FILE_FSYNC], [
- AC_MSG_CHECKING([whether file_fsync() wants 3 args])
+AC_DEFUN([SPL_AC_2ARGS_VFS_FSYNC], [
+ AC_MSG_CHECKING([whether vfs_fsync() wants 2 args])
SPL_LINUX_TRY_COMPILE([
- #include <linux/buffer_head.h>
+ #include <linux/fs.h>
],[
- file_fsync(NULL, NULL, 0);
+ vfs_fsync(NULL, 0);
],[
AC_MSG_RESULT(yes)
- AC_DEFINE(HAVE_3ARGS_FILE_FSYNC, 1,
- [file_fsync() wants 3 args])
+ AC_DEFINE(HAVE_2ARGS_VFS_FSYNC, 1, [vfs_fsync() wants 2 args])
],[
AC_MSG_RESULT(no)
])
@@ -1809,11 +1846,27 @@ dnl # and the flags argument has been removed. The only behavior now
dnl # offered is that of LOOKUP_PARENT. The spl already always passed
dnl # this flag so dropping the flag does not impact us.
dnl #
-AC_DEFUN([SPL_AC_KERN_PATH_PARENT], [
+AC_DEFUN([SPL_AC_KERN_PATH_PARENT_HEADER], [
+ SPL_CHECK_SYMBOL_HEADER(
+ [kern_path_parent],
+ [int kern_path_parent(const char \*, struct nameidata \*)],
+ [include/linux/namei.h],
+ [AC_DEFINE(HAVE_KERN_PATH_PARENT_HEADER, 1,
+ [kern_path_parent() is available])],
+ [])
+])
+
+dnl #
+dnl # 3.1 API compat,
+dnl # The kern_path_parent() symbol is no longer exported by the kernel.
+dnl # However, it remains the prefered interface and since we still have
+dnl # access to the prototype we dynamically lookup the required address.
+dnl #
+AC_DEFUN([SPL_AC_KERN_PATH_PARENT_SYMBOL], [
SPL_CHECK_SYMBOL_EXPORT(
[kern_path_parent],
[fs/namei.c],
- [AC_DEFINE(HAVE_KERN_PATH_PARENT, 1,
+ [AC_DEFINE(HAVE_KERN_PATH_PARENT_SYMBOL, 1,
[kern_path_parent() is available])],
[])
])
diff --git a/configure b/configure
index 1369ca0..901a912 100755
--- a/configure
+++ b/configure
@@ -15067,6 +15067,112 @@ fi
+ { $as_echo "$as_me:$LINENO: checking whether symbol vfs_fsync is exported" >&5
+$as_echo_n "checking whether symbol vfs_fsync is exported... " >&6; }
+ grep -q -E '[[:space:]]vfs_fsync[[:space:]]' \
+ $LINUX_OBJ/Module*.symvers 2>/dev/null
+ rc=$?
+ if test $rc -ne 0; then
+ export=0
+ for file in fs/sync.c; do
+ grep -q -E "EXPORT_SYMBOL.*(vfs_fsync)" \
+ "$LINUX_OBJ/$file" 2>/dev/null
+ rc=$?
+ if test $rc -eq 0; then
+ export=1
+ break;
+ fi
+ done
+ if test $export -eq 0; then
+ { $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+ else
+ { $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_VFS_FSYNC 1
+_ACEOF
+
+ fi
+ else
+ { $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_VFS_FSYNC 1
+_ACEOF
+
+ fi
+
+
+
+ { $as_echo "$as_me:$LINENO: checking whether vfs_fsync() wants 2 args" >&5
+$as_echo_n "checking whether vfs_fsync() wants 2 args... " >&6; }
+
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+
+ #include <linux/fs.h>
+
+int
+main (void)
+{
+
+ vfs_fsync(NULL, 0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+
+
+ rm -Rf build && mkdir -p build
+ echo "obj-m := conftest.o" >build/Makefile
+ if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+
+ { $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_2ARGS_VFS_FSYNC 1
+_ACEOF
+
+
+else
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ { $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+
+
+fi
+
+ rm -Rf build
+
+
+
+
{ $as_echo "$as_me:$LINENO: checking whether struct fs_struct uses spinlock_t" >&5
$as_echo_n "checking whether struct fs_struct uses spinlock_t... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
@@ -15391,71 +15497,6 @@ _ACEOF
- { $as_echo "$as_me:$LINENO: checking whether file_fsync() wants 3 args" >&5
-$as_echo_n "checking whether file_fsync() wants 3 args... " >&6; }
-
-
-cat confdefs.h - <<_ACEOF >conftest.c
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-
- #include <linux/buffer_head.h>
-
-int
-main (void)
-{
-
- file_fsync(NULL, NULL, 0);
-
- ;
- return 0;
-}
-
-_ACEOF
-
-
- rm -Rf build && mkdir -p build
- echo "obj-m := conftest.o" >build/Makefile
- if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
-
- { $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_3ARGS_FILE_FSYNC 1
-_ACEOF
-
-
-else
- $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- { $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-
-
-
-fi
-
- rm -Rf build
-
-
-
-
{ $as_echo "$as_me:$LINENO: checking whether symbol rwsem_is_locked is exported" >&5
$as_echo_n "checking whether symbol rwsem_is_locked is exported... " >&6; }
grep -q -E '[[:space:]]rwsem_is_locked[[:space:]]' \
@@ -15684,6 +15725,34 @@ _ACEOF
+
+ { $as_echo "$as_me:$LINENO: checking whether symbol kern_path_parent exists in header" >&5
+$as_echo_n "checking whether symbol kern_path_parent exists in header... " >&6; }
+ header=0
+ for file in include/linux/namei.h; do
+ grep -q "int kern_path_parent(const char \*, struct nameidata \*)" "$LINUX/$file" 2>/dev/null
+ rc=$?
+ if test $rc -eq 0; then
+ header=1
+ break;
+ fi
+ done
+ if test $header -eq 0; then
+ { $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+ else
+ { $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_KERN_PATH_PARENT_HEADER 1
+_ACEOF
+
+ fi
+
+
+
{ $as_echo "$as_me:$LINENO: checking whether symbol kern_path_parent is exported" >&5
$as_echo_n "checking whether symbol kern_path_parent is exported... " >&6; }
grep -q -E '[[:space:]]kern_path_parent[[:space:]]' \
@@ -15709,7 +15778,7 @@ $as_echo "no" >&6; }
$as_echo "yes" >&6; }
cat >>confdefs.h <<\_ACEOF
-#define HAVE_KERN_PATH_PARENT 1
+#define HAVE_KERN_PATH_PARENT_SYMBOL 1
_ACEOF
fi
@@ -15718,7 +15787,7 @@ _ACEOF
$as_echo "yes" >&6; }
cat >>confdefs.h <<\_ACEOF
-#define HAVE_KERN_PATH_PARENT 1
+#define HAVE_KERN_PATH_PARENT_SYMBOL 1
_ACEOF
fi
@@ -19268,6 +19337,112 @@ fi
+ { $as_echo "$as_me:$LINENO: checking whether symbol vfs_fsync is exported" >&5
+$as_echo_n "checking whether symbol vfs_fsync is exported... " >&6; }
+ grep -q -E '[[:space:]]vfs_fsync[[:space:]]' \
+ $LINUX_OBJ/Module*.symvers 2>/dev/null
+ rc=$?
+ if test $rc -ne 0; then
+ export=0
+ for file in fs/sync.c; do
+ grep -q -E "EXPORT_SYMBOL.*(vfs_fsync)" \
+ "$LINUX_OBJ/$file" 2>/dev/null
+ rc=$?
+ if test $rc -eq 0; then
+ export=1
+ break;
+ fi
+ done
+ if test $export -eq 0; then
+ { $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+ else
+ { $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_VFS_FSYNC 1
+_ACEOF
+
+ fi
+ else
+ { $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_VFS_FSYNC 1
+_ACEOF
+
+ fi
+
+
+
+ { $as_echo "$as_me:$LINENO: checking whether vfs_fsync() wants 2 args" >&5
+$as_echo_n "checking whether vfs_fsync() wants 2 args... " >&6; }
+
+
+cat confdefs.h - <<_ACEOF >conftest.c
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+
+
+ #include <linux/fs.h>
+
+int
+main (void)
+{
+
+ vfs_fsync(NULL, 0);
+
+ ;
+ return 0;
+}
+
+_ACEOF
+
+
+ rm -Rf build && mkdir -p build
+ echo "obj-m := conftest.o" >build/Makefile
+ if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+
+ { $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_2ARGS_VFS_FSYNC 1
+_ACEOF
+
+
+else
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ { $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+
+
+fi
+
+ rm -Rf build
+
+
+
+
{ $as_echo "$as_me:$LINENO: checking whether struct fs_struct uses spinlock_t" >&5
$as_echo_n "checking whether struct fs_struct uses spinlock_t... " >&6; }
tmp_flags="$EXTRA_KCFLAGS"
@@ -19592,71 +19767,6 @@ _ACEOF
- { $as_echo "$as_me:$LINENO: checking whether file_fsync() wants 3 args" >&5
-$as_echo_n "checking whether file_fsync() wants 3 args... " >&6; }
-
-
-cat confdefs.h - <<_ACEOF >conftest.c
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-
-
- #include <linux/buffer_head.h>
-
-int
-main (void)
-{
-
- file_fsync(NULL, NULL, 0);
-
- ;
- return 0;
-}
-
-_ACEOF
-
-
- rm -Rf build && mkdir -p build
- echo "obj-m := conftest.o" >build/Makefile
- if { ac_try='cp conftest.c build && make modules -C $LINUX_OBJ EXTRA_CFLAGS="-Werror-implicit-function-declaration $EXTRA_KCFLAGS" $ARCH_UM M=$PWD/build'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } >/dev/null && { ac_try='test -s build/conftest.o'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
-
- { $as_echo "$as_me:$LINENO: result: yes" >&5
-$as_echo "yes" >&6; }
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_3ARGS_FILE_FSYNC 1
-_ACEOF
-
-
-else
- $as_echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
- { $as_echo "$as_me:$LINENO: result: no" >&5
-$as_echo "no" >&6; }
-
-
-
-fi
-
- rm -Rf build
-
-
-
-
{ $as_echo "$as_me:$LINENO: checking whether symbol rwsem_is_locked is exported" >&5
$as_echo_n "checking whether symbol rwsem_is_locked is exported... " >&6; }
grep -q -E '[[:space:]]rwsem_is_locked[[:space:]]' \
@@ -19885,6 +19995,34 @@ _ACEOF
+
+ { $as_echo "$as_me:$LINENO: checking whether symbol kern_path_parent exists in header" >&5
+$as_echo_n "checking whether symbol kern_path_parent exists in header... " >&6; }
+ header=0
+ for file in include/linux/namei.h; do
+ grep -q "int kern_path_parent(const char \*, struct nameidata \*)" "$LINUX/$file" 2>/dev/null
+ rc=$?
+ if test $rc -eq 0; then
+ header=1
+ break;
+ fi
+ done
+ if test $header -eq 0; then
+ { $as_echo "$as_me:$LINENO: result: no" >&5
+$as_echo "no" >&6; }
+
+ else
+ { $as_echo "$as_me:$LINENO: result: yes" >&5
+$as_echo "yes" >&6; }
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_KERN_PATH_PARENT_HEADER 1
+_ACEOF
+
+ fi
+
+
+
{ $as_echo "$as_me:$LINENO: checking whether symbol kern_path_parent is exported" >&5
$as_echo_n "checking whether symbol kern_path_parent is exported... " >&6; }
grep -q -E '[[:space:]]kern_path_parent[[:space:]]' \
@@ -19910,7 +20048,7 @@ $as_echo "no" >&6; }
$as_echo "yes" >&6; }
cat >>confdefs.h <<\_ACEOF
-#define HAVE_KERN_PATH_PARENT 1
+#define HAVE_KERN_PATH_PARENT_SYMBOL 1
_ACEOF
fi
@@ -19919,7 +20057,7 @@ _ACEOF
$as_echo "yes" >&6; }
cat >>confdefs.h <<\_ACEOF
-#define HAVE_KERN_PATH_PARENT 1
+#define HAVE_KERN_PATH_PARENT_SYMBOL 1
_ACEOF
fi
diff --git a/include/linux/file_compat.h b/include/linux/file_compat.h
index 97bd763..5c7833d 100644
--- a/include/linux/file_compat.h
+++ b/include/linux/file_compat.h
@@ -50,12 +50,16 @@ spl_filp_open(const char *name, int flags, int mode, int *err)
#define spl_filp_poff(f) (&(f)->f_pos)
#define spl_filp_write(fp, b, s, p) (fp)->f_op->write((fp), (b), (s), p)
-#ifdef HAVE_3ARGS_FILE_FSYNC
-#define spl_filp_fsync(fp, sync) (fp)->f_op->fsync((fp), \
- (fp)->f_dentry, sync)
+#ifdef HAVE_VFS_FSYNC
+# ifdef HAVE_2ARGS_VFS_FSYNC
+# define spl_filp_fsync(fp, sync) vfs_fsync(fp, sync)
+# else
+# define spl_filp_fsync(fp, sync) vfs_fsync(fp, (fp)->f_dentry, sync)
+# endif /* HAVE_2ARGS_VFS_FSYNC */
#else
-#define spl_filp_fsync(fp, sync) (fp)->f_op->fsync((fp), sync)
-#endif
+# include <linux/buffer_head.h>
+# define spl_filp_fsync(fp, sync) file_fsync(fp, (fp)->f_dentry, sync)
+#endif /* HAVE_VFS_FSYNC */
#ifdef HAVE_INODE_I_MUTEX
#define spl_inode_lock(ip) (mutex_lock(&(ip)->i_mutex))
@@ -67,11 +71,17 @@ spl_filp_open(const char *name, int flags, int mode, int *err)
#define spl_inode_unlock(ip) (up(&(ip)->i_sem))
#endif /* HAVE_INODE_I_MUTEX */
-#ifdef HAVE_KERN_PATH_PARENT
-#define spl_kern_path_parent(path, nd) kern_path_parent(path, nd)
+#ifdef HAVE_KERN_PATH_PARENT_HEADER
+# ifndef HAVE_KERN_PATH_PARENT_SYMBOL
+typedef int (*kern_path_parent_t)(const char *, struct nameidata *);
+extern kern_path_parent_t kern_path_parent_fn;
+# define spl_kern_path_parent(path, nd) kern_path_parent_fn(path, nd)
+# else
+# define spl_kern_path_parent(path, nd) kern_path_parent(path, nd)
+# endif /* HAVE_KERN_PATH_PARENT_SYMBOL */
#else
-#define spl_kern_path_parent(path, nd) path_lookup(path, LOOKUP_PARENT, nd)
-#endif /* HAVE_KERN_PATH_PARENT */
+# define spl_kern_path_parent(path, nd) path_lookup(path, LOOKUP_PARENT, nd)
+#endif /* HAVE_KERN_PATH_PARENT_HEADER */
#endif /* SPL_FILE_COMPAT_H */
diff --git a/include/linux/mm_compat.h b/include/linux/mm_compat.h
index 173acd4..b375f9b 100644
--- a/include/linux/mm_compat.h
+++ b/include/linux/mm_compat.h
@@ -93,16 +93,37 @@ extern shrink_dcache_memory_t shrink_dcache_memory_fn;
# define shrink_dcache_memory(nr, gfp) \
({ \
struct shrink_control sc = { .nr_to_scan = nr, .gfp_mask = gfp }; \
- shrink_dcache_memory_fn(NULL, &sc); \
+ int __ret__ = 0; \
+ \
+ if (shrink_dcache_memory_fn) \
+ __ret__ = shrink_dcache_memory_fn(NULL, &sc); \
+ \
+ __ret__; \
})
# elif defined(HAVE_3ARGS_SHRINKER_CALLBACK)
typedef int (*shrink_dcache_memory_t)(struct shrinker *, int, gfp_t);
extern shrink_dcache_memory_t shrink_dcache_memory_fn;
-# define shrink_dcache_memory(nr, gfp) shrink_dcache_memory_fn(NULL, nr, gfp)
+# define shrink_dcache_memory(nr, gfp) \
+({ \
+ int __ret__ = 0; \
+ \
+ if (shrink_dcache_memory_fn) \
+ __ret__ = shrink_dcache_memory_fn(NULL, nr, gfp); \
+ \
+ __ret__; \
+})
# else
typedef int (*shrink_dcache_memory_t)(int, gfp_t);
extern shrink_dcache_memory_t shrink_dcache_memory_fn;
-# define shrink_dcache_memory(nr, gfp) shrink_dcache_memory_fn(nr, gfp)
+# define shrink_dcache_memory(nr, gfp) \
+({ \
+ int __ret__ = 0; \
+ \
+ if (shrink_dcache_memory_fn) \
+ __ret__ = shrink_dcache_memory_fn(nr, gfp); \
+ \
+ __ret__; \
+})
# endif /* HAVE_3ARGS_SHRINKER_CALLBACK */
#endif /* HAVE_SHRINK_DCACHE_MEMORY */
@@ -120,16 +141,37 @@ extern shrink_icache_memory_t shrink_icache_memory_fn;
# define shrink_icache_memory(nr, gfp) \
({ \
struct shrink_control sc = { .nr_to_scan = nr, .gfp_mask = gfp }; \
- shrink_icache_memory_fn(NULL, &sc); \
+ int __ret__ = 0; \
+ \
+ if (shrink_icache_memory_fn) \
+ __ret__ = shrink_icache_memory_fn(NULL, &sc); \
+ \
+ __ret__; \
})
# elif defined(HAVE_3ARGS_SHRINKER_CALLBACK)
typedef int (*shrink_icache_memory_t)(struct shrinker *, int, gfp_t);
extern shrink_icache_memory_t shrink_icache_memory_fn;
-# define shrink_icache_memory(nr, gfp) shrink_icache_memory_fn(NULL, nr, gfp)
+# define shrink_icache_memory(nr, gfp) \
+({ \
+ int __ret__ = 0; \
+ \
+ if (shrink_icache_memory_fn) \
+ __ret__ = shrink_icache_memory_fn(NULL, nr, gfp); \
+ \
+ __ret__; \
+})
# else
typedef int (*shrink_icache_memory_t)(int, gfp_t);
extern shrink_icache_memory_t shrink_icache_memory_fn;
-# define shrink_icache_memory(nr, gfp) shrink_icache_memory_fn(nr, gfp)
+# define shrink_icache_memory(nr, gfp) \
+({ \
+ int __ret__ = 0; \
+ \
+ if (shrink_icache_memory_fn) \
+ __ret__ = shrink_icache_memory_fn(nr, gfp); \
+ \
+ __ret__; \
+})
# endif /* HAVE_3ARGS_SHRINKER_CALLBACK */
#endif /* HAVE_SHRINK_ICACHE_MEMORY */
diff --git a/include/sys/vnode.h b/include/sys/vnode.h
index 36605ca..03462bd 100644
--- a/include/sys/vnode.h
+++ b/include/sys/vnode.h
@@ -189,8 +189,9 @@ extern file_t *vn_getf(int fd);
extern void vn_releasef(int fd);
extern int vn_set_pwd(const char *filename);
-int vn_init(void);
-void vn_fini(void);
+int spl_vn_init_kallsyms_lookup(void);
+int spl_vn_init(void);
+void spl_vn_fini(void);
#define VOP_CLOSE vn_close
#define VOP_SEEK vn_seek
diff --git a/module/spl/spl-generic.c b/module/spl/spl-generic.c
index 1dedf76..3f042cc 100644
--- a/module/spl/spl-generic.c
+++ b/module/spl/spl-generic.c
@@ -561,7 +561,7 @@ __init spl_init(void)
if ((rc = spl_taskq_init()))
SGOTO(out4, rc);
- if ((rc = vn_init()))
+ if ((rc = spl_vn_init()))
SGOTO(out5, rc);
if ((rc = proc_init()))
@@ -594,6 +594,9 @@ __init spl_init(void)
if ((rc = spl_kmem_init_kallsyms_lookup()))
SGOTO(out10, rc);
+ if ((rc = spl_vn_init_kallsyms_lookup()))
+ SGOTO(out10, rc);
+
printk(KERN_NOTICE "SPL: Loaded module v%s%s, using hostid 0x%08x\n",
SPL_META_VERSION, SPL_DEBUG_STR, (unsigned int) spl_hostid);
SRETURN(rc);
@@ -606,7 +609,7 @@ out8:
out7:
proc_fini();
out6:
- vn_fini();
+ spl_vn_fini();
out5:
spl_taskq_fini();
out4:
@@ -634,7 +637,7 @@ spl_fini(void)
tsd_fini();
kstat_fini();
proc_fini();
- vn_fini();
+ spl_vn_fini();
spl_taskq_fini();
spl_rw_fini();
spl_mutex_fini();
diff --git a/module/spl/spl-kmem.c b/module/spl/spl-kmem.c
index b3c054a..1d2fa90 100644
--- a/module/spl/spl-kmem.c
+++ b/module/spl/spl-kmem.c
@@ -2123,21 +2123,15 @@ spl_kmem_init_kallsyms_lookup(void)
#endif /* HAVE_INVALIDATE_INODES */
#ifndef HAVE_SHRINK_DCACHE_MEMORY
+ /* When shrink_dcache_memory_fn == NULL support is disabled */
shrink_dcache_memory_fn = (shrink_dcache_memory_t)
- spl_kallsyms_lookup_name("shrink_dcache_memory");
- if (!shrink_dcache_memory_fn) {
- printk(KERN_ERR "Error: Unknown symbol shrink_dcache_memory\n");
- return -EFAULT;
- }
+ spl_kallsyms_lookup_name("shrink_dcache_memory");
#endif /* HAVE_SHRINK_DCACHE_MEMORY */
#ifndef HAVE_SHRINK_ICACHE_MEMORY
+ /* When shrink_icache_memory_fn == NULL support is disabled */
shrink_icache_memory_fn = (shrink_icache_memory_t)
- spl_kallsyms_lookup_name("shrink_icache_memory");
- if (!shrink_icache_memory_fn) {
- printk(KERN_ERR "Error: Unknown symbol shrink_icache_memory\n");
- return -EFAULT;
- }
+ spl_kallsyms_lookup_name("shrink_icache_memory");
#endif /* HAVE_SHRINK_ICACHE_MEMORY */
return 0;
diff --git a/module/spl/spl-vnode.c b/module/spl/spl-vnode.c
index 354e879..cd0fa2c 100644
--- a/module/spl/spl-vnode.c
+++ b/module/spl/spl-vnode.c
@@ -42,6 +42,13 @@ static spl_kmem_cache_t *vn_file_cache;
static DEFINE_SPINLOCK(vn_file_lock);
static LIST_HEAD(vn_file_list);
+#ifdef HAVE_KERN_PATH_PARENT_HEADER
+#ifndef HAVE_KERN_PATH_PARENT_SYMBOL
+kern_path_parent_t kern_path_parent_fn = SYMBOL_POISON;
+EXPORT_SYMBOL(kern_path_parent_fn);
+#endif /* HAVE_KERN_PATH_PARENT_SYMBOL */
+#endif /* HAVE_KERN_PATH_PARENT_HEADER */
+
vtype_t
vn_mode_to_vtype(mode_t mode)
{
@@ -789,8 +796,24 @@ vn_file_cache_destructor(void *buf, void *cdrarg)
mutex_destroy(&fp->f_lock);
} /* vn_file_cache_destructor() */
+int spl_vn_init_kallsyms_lookup(void)
+{
+#ifdef HAVE_KERN_PATH_PARENT_HEADER
+#ifndef HAVE_KERN_PATH_PARENT_SYMBOL
+ kern_path_parent_fn = (kern_path_parent_t)
+ spl_kallsyms_lookup_name("kern_path_parent");
+ if (!kern_path_parent_fn) {
+ printk(KERN_ERR "Error: Unknown symbol kern_path_parent\n");
+ return -EFAULT;
+ }
+#endif /* HAVE_KERN_PATH_PARENT_SYMBOL */
+#endif /* HAVE_KERN_PATH_PARENT_HEADER */
+
+ return (0);
+}
+
int
-vn_init(void)
+spl_vn_init(void)
{
SENTRY;
vn_cache = kmem_cache_create("spl_vn_cache",
@@ -808,7 +831,7 @@ vn_init(void)
} /* vn_init() */
void
-vn_fini(void)
+spl_vn_fini(void)
{
file_t *fp, *next_fp;
int leaked = 0;
diff --git a/spl_config.h.in b/spl_config.h.in
index 97f0e06..08b4342 100644
--- a/spl_config.h.in
+++ b/spl_config.h.in
@@ -18,15 +18,15 @@
/* set_fs_pwd() wants 2 args */
#undef HAVE_2ARGS_SET_FS_PWD
+/* vfs_fsync() wants 2 args */
+#undef HAVE_2ARGS_VFS_FSYNC
+
/* vfs_unlink() wants 2 args */
#undef HAVE_2ARGS_VFS_UNLINK
/* zlib_deflate_workspacesize() wants 2 args */
#undef HAVE_2ARGS_ZLIB_DEFLATE_WORKSPACESIZE
-/* file_fsync() wants 3 args */
-#undef HAVE_3ARGS_FILE_FSYNC
-
/* INIT_WORK wants 3 args */
#undef HAVE_3ARGS_INIT_WORK
@@ -115,7 +115,10 @@
#undef HAVE_KALLSYMS_LOOKUP_NAME
/* kern_path_parent() is available */
-#undef HAVE_KERN_PATH_PARENT
+#undef HAVE_KERN_PATH_PARENT_HEADER
+
+/* kern_path_parent() is available */
+#undef HAVE_KERN_PATH_PARENT_SYMBOL
/* kmalloc_node() is available */
#undef HAVE_KMALLOC_NODE
@@ -213,6 +216,9 @@
/* user_path_dir() is available */
#undef HAVE_USER_PATH_DIR
+/* vfs_fsync() is available */
+#undef HAVE_VFS_FSYNC
+
/* Page state NR_ACTIVE is available */
#undef HAVE_ZONE_STAT_ITEM_NR_ACTIVE
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