*/
#include <linux/time.h>
+#include <linux/pagemap.h>
+#include <linux/quotaops.h>
#include "ext2.h"
#include "xattr.h"
#include "acl.h"
/*
- * Called when an inode is released. Note that this is different
- * from ext2_open_file: open gets called at every open, but release
- * gets called only when /all/ the files are closed.
+ * 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)
- ext2_discard_prealloc (inode);
+ 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;
}
+int ext2_fsync(struct file *file, struct dentry *dentry, int datasync)
+{
+ int ret;
+ struct super_block *sb = dentry->d_inode->i_sb;
+ struct address_space *mapping = sb->s_bdev->bd_inode->i_mapping;
+
+ ret = simple_fsync(file, dentry, datasync);
+ if (ret == -EIO || test_and_clear_bit(AS_EIO, &mapping->flags)) {
+ /* We don't really know where the IO error happened... */
+ ext2_error(sb, __func__,
+ "detected IO error when writing metadata buffers");
+ ret = -EIO;
+ }
+ return ret;
+}
+
/*
* 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 = generic_file_read,
- .write = generic_file_write,
+ .read = do_sync_read,
+ .write = do_sync_write,
.aio_read = generic_file_aio_read,
.aio_write = generic_file_aio_write,
- .ioctl = ext2_ioctl,
+ .unlocked_ioctl = ext2_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = ext2_compat_ioctl,
#endif
.mmap = generic_file_mmap,
- .open = generic_file_open,
+ .open = dquot_file_open,
.release = ext2_release_file,
- .fsync = ext2_sync_file,
- .readv = generic_file_readv,
- .writev = generic_file_writev,
- .sendfile = generic_file_sendfile,
+ .fsync = ext2_fsync,
.splice_read = generic_file_splice_read,
.splice_write = generic_file_splice_write,
};
.llseek = generic_file_llseek,
.read = xip_file_read,
.write = xip_file_write,
- .ioctl = ext2_ioctl,
+ .unlocked_ioctl = ext2_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = ext2_compat_ioctl,
#endif
.mmap = xip_file_mmap,
- .open = generic_file_open,
+ .open = dquot_file_open,
.release = ext2_release_file,
- .fsync = ext2_sync_file,
- .sendfile = xip_file_sendfile,
+ .fsync = ext2_fsync,
};
#endif
-struct inode_operations ext2_file_inode_operations = {
+const struct inode_operations ext2_file_inode_operations = {
.truncate = ext2_truncate,
#ifdef CONFIG_EXT2_FS_XATTR
.setxattr = generic_setxattr,
.removexattr = generic_removexattr,
#endif
.setattr = ext2_setattr,
- .permission = ext2_permission,
+ .check_acl = ext2_check_acl,
+ .fiemap = ext2_fiemap,
};