* Added support for files larger than 4GB - not yet tested, though.

* The stat::st_nlink value is now correctly reported.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@26188 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/kernel/file_systems/ext2/Inode.cpp

@@ -30,6 +30,7 @@ Inode::Inode(Volume* volume, ino_t id)
 	}
 
 	if (fNode != NULL) {
+		// TODO: we don't need a cache for short symlinks
 		fCache = file_cache_create(fVolume->ID(), ID(), Size());
 		fMap = file_map_create(fVolume->ID(), ID(), Size());
 	}

src/add-ons/kernel/file_systems/ext2/ext2.h

@@ -6,6 +6,8 @@
 #define EXT2_H
 
 
+#include <sys/stat.h>
+
 #include <ByteOrder.h>
 #include <fs_interface.h>
 
@@ -160,7 +162,11 @@ struct ext2_inode {
 	};
 	uint32	generation;
 	uint32	file_access_control;
-	uint32	directory_access_control;
+	union {
+		// for directories vs. files
+		uint32	directory_access_control;
+		uint32	size_high;
+	};
 	uint32	fragment;
 	uint8	fragment_number;
 	uint8	fragment_size;
@@ -170,14 +176,24 @@ struct ext2_inode {
 	uint32	_reserved2;
 
 	uint16 Mode() const { return B_LENDIAN_TO_HOST_INT16(mode); }
-	uint32 Size() const { return B_LENDIAN_TO_HOST_INT32(size); }
 	uint32 Flags() const { return B_LENDIAN_TO_HOST_INT32(flags); }
+	uint16 NumLinks() const { return B_LENDIAN_TO_HOST_INT16(num_links); }
 
 	time_t AccessTime() const { return B_LENDIAN_TO_HOST_INT32(access_time); }
 	time_t CreationTime() const { return B_LENDIAN_TO_HOST_INT32(creation_time); }
 	time_t ModificationTime() const { return B_LENDIAN_TO_HOST_INT32(modification_time); }
 	time_t DeletionTime() const { return B_LENDIAN_TO_HOST_INT32(deletion_time); }
 
+	off_t Size() const
+	{
+		if (S_ISREG(Mode())) {
+			return B_LENDIAN_TO_HOST_INT32(size)
+				| ((off_t)B_LENDIAN_TO_HOST_INT32(size_high) << 32);
+		}
+
+		return B_LENDIAN_TO_HOST_INT32(size);
+	}
+
 	uint16 UserID() const
 	{
 		return B_LENDIAN_TO_HOST_INT16(uid)

src/add-ons/kernel/file_systems/ext2/kernel_interface.cpp

@@ -327,7 +327,7 @@ ext2_read_stat(fs_volume* _volume, fs_vnode* _node, struct stat* stat)
 
 	stat->st_dev = inode->GetVolume()->ID();
 	stat->st_ino = inode->ID();
-	stat->st_nlink = 1;
+	stat->st_nlink = node.NumLinks();
 	stat->st_blksize = EXT2_IO_SIZE;
 
 	stat->st_uid = node.UserID();