/* * linux/fs/ext2/file.c * * Copyright (C) 1992, 1993, 1994, 1995 * Remy Card (card@masi.ibp.fr) * Laboratoire MASI - Institut Blaise Pascal * Universite Pierre et Marie Curie (Paris VI) * * from * * linux/fs/minix/file.c * * Copyright (C) 1991, 1992 Linus Torvalds * * ext2 fs regular file handling primitives * * 64-bit file support on 64-bit platforms by Jakub Jelinek * (jj@sunsite.ms.mff.cuni.cz) */ #include <linux/time.h> #include "ext2.h" #include "xattr.h" #include "acl.h" /* * Called when filp is released. This happens when all file descriptors * for a single struct file are closed. Note that different open() calls * for the same file yield different struct file structures. */ static int ext2_release_file (struct inode * inode, struct file * filp) { if (filp->f_mode & FMODE_WRITE) { mutex_lock(&EXT2_I(inode)->truncate_mutex); ext2_discard_reservation(inode); mutex_unlock(&EXT2_I(inode)->truncate_mutex); } return 0; } /* * We have mostly NULL's here: the current defaults are ok for * the ext2 filesystem. */ const struct file_operations ext2_file_operations = { .llseek = generic_file_llseek, .read = do_sync_read, .write = do_sync_write, .aio_read = generic_file_aio_read, .aio_write = generic_file_aio_write, .unlocked_ioctl = ext2_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = ext2_compat_ioctl, #endif .mmap = generic_file_mmap, .open = generic_file_open, .release = ext2_release_file, .fsync = ext2_sync_file, .splice_read = generic_file_splice_read, .splice_write = generic_file_splice_write, }; #ifdef CONFIG_EXT2_FS_XIP const struct file_operations ext2_xip_file_operations = { .llseek = generic_file_llseek, .read = xip_file_read, .write = xip_file_write, .unlocked_ioctl = ext2_ioctl, #ifdef CONFIG_COMPAT .compat_ioctl = ext2_compat_ioctl, #endif .mmap = xip_file_mmap, .open = generic_file_open, .release = ext2_release_file, .fsync = ext2_sync_file, }; #endif const struct inode_operations ext2_file_inode_operations = { .truncate = ext2_truncate, #ifdef CONFIG_EXT2_FS_XATTR .setxattr = generic_setxattr, .getxattr = generic_getxattr, .listxattr = ext2_listxattr, .removexattr = generic_removexattr, #endif .setattr = ext2_setattr, .permission = ext2_permission, };