{
struct inode *inode;
loff_t pos;
+ int retval = -EINVAL;
inode = file->f_path.dentry->d_inode;
if (unlikely((ssize_t) count < 0))
- goto Einval;
+ return retval;
pos = *ppos;
if (unlikely((pos < 0) || (loff_t) (pos + count) < 0))
- goto Einval;
+ return retval;
if (unlikely(inode->i_flock && mandatory_lock(inode))) {
- int retval = locks_mandatory_area(
+ retval = locks_mandatory_area(
read_write == READ ? FLOCK_VERIFY_READ : FLOCK_VERIFY_WRITE,
inode, file, pos, count);
if (retval < 0)
return retval;
}
+ retval = security_file_permission(file,
+ read_write == READ ? MAY_READ : MAY_WRITE);
+ if (retval)
+ return retval;
return count > MAX_RW_COUNT ? MAX_RW_COUNT : count;
-
-Einval:
- return -EINVAL;
}
static void wait_on_retry_sync_kiocb(struct kiocb *iocb)
ret = rw_verify_area(READ, file, pos, count);
if (ret >= 0) {
count = ret;
- ret = security_file_permission (file, MAY_READ);
- if (!ret) {
- if (file->f_op->read)
- ret = file->f_op->read(file, buf, count, pos);
- else
- ret = do_sync_read(file, buf, count, pos);
- if (ret > 0) {
- fsnotify_access(file->f_path.dentry);
- add_rchar(current, ret);
- }
- inc_syscr(current);
+ if (file->f_op->read)
+ ret = file->f_op->read(file, buf, count, pos);
+ else
+ ret = do_sync_read(file, buf, count, pos);
+ if (ret > 0) {
+ fsnotify_access(file->f_path.dentry);
+ add_rchar(current, ret);
}
+ inc_syscr(current);
}
return ret;
ret = rw_verify_area(WRITE, file, pos, count);
if (ret >= 0) {
count = ret;
- ret = security_file_permission (file, MAY_WRITE);
- if (!ret) {
- if (file->f_op->write)
- ret = file->f_op->write(file, buf, count, pos);
- else
- ret = do_sync_write(file, buf, count, pos);
- if (ret > 0) {
- fsnotify_modify(file->f_path.dentry);
- add_wchar(current, ret);
- }
- inc_syscw(current);
+ if (file->f_op->write)
+ ret = file->f_op->write(file, buf, count, pos);
+ else
+ ret = do_sync_write(file, buf, count, pos);
+ if (ret > 0) {
+ fsnotify_modify(file->f_path.dentry);
+ add_wchar(current, ret);
}
+ inc_syscw(current);
}
return ret;
return ret;
}
-EXPORT_SYMBOL_GPL(sys_read);
+EXPORT_UNUSED_SYMBOL_GPL(sys_read); /* to be deleted for 2.6.25 */
asmlinkage ssize_t sys_write(unsigned int fd, const char __user * buf, size_t count)
{
ret = rw_verify_area(type, file, pos, tot_len);
if (ret < 0)
goto out;
- ret = security_file_permission(file, type == READ ? MAY_READ : MAY_WRITE);
- if (ret)
- goto out;
fnv = NULL;
if (type == READ) {
goto fput_in;
count = retval;
- retval = security_file_permission (in_file, MAY_READ);
- if (retval)
- goto fput_in;
-
/*
* Get output file, and verify that it is ok..
*/
goto fput_out;
count = retval;
- retval = security_file_permission (out_file, MAY_WRITE);
- if (retval)
- goto fput_out;
-
if (!max)
max = min(in_inode->i_sb->s_maxbytes, out_inode->i_sb->s_maxbytes);