| /* |
| * linux/fs/ext3/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 |
| * |
| * ext3 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 <linux/fs.h> |
| #include <linux/jbd.h> |
| #include <linux/ext3_fs.h> |
| #include <linux/ext3_jbd.h> |
| #include "xattr.h" |
| #include "acl.h" |
| |
| /* |
| * Called when an inode is released. Note that this is different |
| * from ext3_file_open: open gets called at every open, but release |
| * gets called only when /all/ the files are closed. |
| */ |
| static int ext3_release_file (struct inode * inode, struct file * filp) |
| { |
| if (EXT3_I(inode)->i_state & EXT3_STATE_FLUSH_ON_CLOSE) { |
| filemap_flush(inode->i_mapping); |
| EXT3_I(inode)->i_state &= ~EXT3_STATE_FLUSH_ON_CLOSE; |
| } |
| /* if we are the last writer on the inode, drop the block reservation */ |
| if ((filp->f_mode & FMODE_WRITE) && |
| (atomic_read(&inode->i_writecount) == 1)) |
| { |
| mutex_lock(&EXT3_I(inode)->truncate_mutex); |
| ext3_discard_reservation(inode); |
| mutex_unlock(&EXT3_I(inode)->truncate_mutex); |
| } |
| if (is_dx(inode) && filp->private_data) |
| ext3_htree_free_dir_info(filp->private_data); |
| |
| return 0; |
| } |
| |
| const struct file_operations ext3_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 = ext3_ioctl, |
| #ifdef CONFIG_COMPAT |
| .compat_ioctl = ext3_compat_ioctl, |
| #endif |
| .mmap = generic_file_mmap, |
| .open = generic_file_open, |
| .release = ext3_release_file, |
| .fsync = ext3_sync_file, |
| .splice_read = generic_file_splice_read, |
| .splice_write = generic_file_splice_write, |
| }; |
| |
| const struct inode_operations ext3_file_inode_operations = { |
| .truncate = ext3_truncate, |
| .setattr = ext3_setattr, |
| #ifdef CONFIG_EXT3_FS_XATTR |
| .setxattr = generic_setxattr, |
| .getxattr = generic_getxattr, |
| .listxattr = ext3_listxattr, |
| .removexattr = generic_removexattr, |
| #endif |
| .check_acl = ext3_check_acl, |
| .fiemap = ext3_fiemap, |
| }; |
| |