11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds * linux/fs/ext2/file.c 31da177e4SLinus Torvalds * 41da177e4SLinus Torvalds * Copyright (C) 1992, 1993, 1994, 1995 51da177e4SLinus Torvalds * Remy Card (card@masi.ibp.fr) 61da177e4SLinus Torvalds * Laboratoire MASI - Institut Blaise Pascal 71da177e4SLinus Torvalds * Universite Pierre et Marie Curie (Paris VI) 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * from 101da177e4SLinus Torvalds * 111da177e4SLinus Torvalds * linux/fs/minix/file.c 121da177e4SLinus Torvalds * 131da177e4SLinus Torvalds * Copyright (C) 1991, 1992 Linus Torvalds 141da177e4SLinus Torvalds * 151da177e4SLinus Torvalds * ext2 fs regular file handling primitives 161da177e4SLinus Torvalds * 171da177e4SLinus Torvalds * 64-bit file support on 64-bit platforms by Jakub Jelinek 181da177e4SLinus Torvalds * (jj@sunsite.ms.mff.cuni.cz) 191da177e4SLinus Torvalds */ 201da177e4SLinus Torvalds 211da177e4SLinus Torvalds #include <linux/time.h> 221da177e4SLinus Torvalds #include "ext2.h" 231da177e4SLinus Torvalds #include "xattr.h" 241da177e4SLinus Torvalds #include "acl.h" 251da177e4SLinus Torvalds 261da177e4SLinus Torvalds /* 27a6739af8SJan Kara * Called when filp is released. This happens when all file descriptors 28a6739af8SJan Kara * for a single struct file are closed. Note that different open() calls 29a6739af8SJan Kara * for the same file yield different struct file structures. 301da177e4SLinus Torvalds */ 311da177e4SLinus Torvalds static int ext2_release_file (struct inode * inode, struct file * filp) 321da177e4SLinus Torvalds { 331da177e4SLinus Torvalds if (filp->f_mode & FMODE_WRITE) 341da177e4SLinus Torvalds ext2_discard_prealloc (inode); 351da177e4SLinus Torvalds return 0; 361da177e4SLinus Torvalds } 371da177e4SLinus Torvalds 381da177e4SLinus Torvalds /* 391da177e4SLinus Torvalds * We have mostly NULL's here: the current defaults are ok for 401da177e4SLinus Torvalds * the ext2 filesystem. 411da177e4SLinus Torvalds */ 424b6f5d20SArjan van de Ven const struct file_operations ext2_file_operations = { 431da177e4SLinus Torvalds .llseek = generic_file_llseek, 44543ade1fSBadari Pulavarty .read = do_sync_read, 45543ade1fSBadari Pulavarty .write = do_sync_write, 461da177e4SLinus Torvalds .aio_read = generic_file_aio_read, 471da177e4SLinus Torvalds .aio_write = generic_file_aio_write, 481da177e4SLinus Torvalds .ioctl = ext2_ioctl, 49e322ff07SDavid Howells #ifdef CONFIG_COMPAT 50e322ff07SDavid Howells .compat_ioctl = ext2_compat_ioctl, 51e322ff07SDavid Howells #endif 521da177e4SLinus Torvalds .mmap = generic_file_mmap, 531da177e4SLinus Torvalds .open = generic_file_open, 541da177e4SLinus Torvalds .release = ext2_release_file, 551da177e4SLinus Torvalds .fsync = ext2_sync_file, 565274f052SJens Axboe .splice_read = generic_file_splice_read, 575274f052SJens Axboe .splice_write = generic_file_splice_write, 581da177e4SLinus Torvalds }; 591da177e4SLinus Torvalds 606d79125bSCarsten Otte #ifdef CONFIG_EXT2_FS_XIP 614b6f5d20SArjan van de Ven const struct file_operations ext2_xip_file_operations = { 626d79125bSCarsten Otte .llseek = generic_file_llseek, 63eb6fe0c3SCarsten Otte .read = xip_file_read, 64eb6fe0c3SCarsten Otte .write = xip_file_write, 656d79125bSCarsten Otte .ioctl = ext2_ioctl, 66e322ff07SDavid Howells #ifdef CONFIG_COMPAT 67e322ff07SDavid Howells .compat_ioctl = ext2_compat_ioctl, 68e322ff07SDavid Howells #endif 696d79125bSCarsten Otte .mmap = xip_file_mmap, 706d79125bSCarsten Otte .open = generic_file_open, 716d79125bSCarsten Otte .release = ext2_release_file, 726d79125bSCarsten Otte .fsync = ext2_sync_file, 736d79125bSCarsten Otte }; 746d79125bSCarsten Otte #endif 756d79125bSCarsten Otte 76754661f1SArjan van de Ven const struct inode_operations ext2_file_inode_operations = { 771da177e4SLinus Torvalds .truncate = ext2_truncate, 781da177e4SLinus Torvalds #ifdef CONFIG_EXT2_FS_XATTR 791da177e4SLinus Torvalds .setxattr = generic_setxattr, 801da177e4SLinus Torvalds .getxattr = generic_getxattr, 811da177e4SLinus Torvalds .listxattr = ext2_listxattr, 821da177e4SLinus Torvalds .removexattr = generic_removexattr, 831da177e4SLinus Torvalds #endif 841da177e4SLinus Torvalds .setattr = ext2_setattr, 851da177e4SLinus Torvalds .permission = ext2_permission, 861da177e4SLinus Torvalds }; 87