[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/fs/sysv/file.c b/ap/os/linux/linux-3.4.x/fs/sysv/file.c
new file mode 100644
index 0000000..0a65939
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/fs/sysv/file.c
@@ -0,0 +1,58 @@
+/*
+ * linux/fs/sysv/file.c
+ *
+ * minix/file.c
+ * Copyright (C) 1991, 1992 Linus Torvalds
+ *
+ * coh/file.c
+ * Copyright (C) 1993 Pascal Haible, Bruno Haible
+ *
+ * sysv/file.c
+ * Copyright (C) 1993 Bruno Haible
+ *
+ * SystemV/Coherent regular file handling primitives
+ */
+
+#include "sysv.h"
+
+/*
+ * We have mostly NULLs here: the current defaults are OK for
+ * the coh filesystem.
+ */
+const struct file_operations sysv_file_operations = {
+ .llseek = generic_file_llseek,
+ .read = do_sync_read,
+ .aio_read = generic_file_aio_read,
+ .write = do_sync_write,
+ .aio_write = generic_file_aio_write,
+ .mmap = generic_file_mmap,
+ .fsync = generic_file_fsync,
+ .splice_read = generic_file_splice_read,
+};
+
+static int sysv_setattr(struct dentry *dentry, struct iattr *attr)
+{
+ struct inode *inode = dentry->d_inode;
+ int error;
+
+ error = inode_change_ok(inode, attr);
+ if (error)
+ return error;
+
+ if ((attr->ia_valid & ATTR_SIZE) &&
+ attr->ia_size != i_size_read(inode)) {
+ error = vmtruncate(inode, attr->ia_size);
+ if (error)
+ return error;
+ }
+
+ setattr_copy(inode, attr);
+ mark_inode_dirty(inode);
+ return 0;
+}
+
+const struct inode_operations sysv_file_inode_operations = {
+ .truncate = sysv_truncate,
+ .setattr = sysv_setattr,
+ .getattr = sysv_getattr,
+};