/* * 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_iter = generic_file_read_iter, .write_iter = generic_file_write_iter, .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 = d_inode(dentry); int error; error = setattr_prepare(dentry, attr); if (error) return error; if ((attr->ia_valid & ATTR_SIZE) && attr->ia_size != i_size_read(inode)) { error = inode_newsize_ok(inode, attr->ia_size); if (error) return error; truncate_setsize(inode, attr->ia_size); sysv_truncate(inode); } setattr_copy(inode, attr); mark_inode_dirty(inode); return 0; } const struct inode_operations sysv_file_inode_operations = { .setattr = sysv_setattr, .getattr = sysv_getattr, }; ption>
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