diff options
author | Ben Dooks <ben-linux@fluff.org> | 2008-07-15 20:19:14 +0100 |
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committer | Ben Dooks <ben-linux@fluff.org> | 2008-07-15 20:19:14 +0100 |
commit | 0c17e4ceedd35c78b1c7413dbd16279a350be6bc (patch) | |
tree | 313b3b9ca04727f3704464e01d8dd97da1dd534b /arch/s390/hypfs/inode.c | |
parent | 19c1d6a34abf73d0baf8e325d018c920fa78dddc (diff) | |
parent | b9d2252c1e44fa83a4e65fdc9eb93db6297c55af (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into for-rmk
Diffstat (limited to 'arch/s390/hypfs/inode.c')
-rw-r--r-- | arch/s390/hypfs/inode.c | 29 |
1 files changed, 10 insertions, 19 deletions
diff --git a/arch/s390/hypfs/inode.c b/arch/s390/hypfs/inode.c index 4b010ff814c..7383781f3e6 100644 --- a/arch/s390/hypfs/inode.c +++ b/arch/s390/hypfs/inode.c @@ -150,33 +150,24 @@ static ssize_t hypfs_aio_read(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t offset) { char *data; - size_t len; + ssize_t ret; struct file *filp = iocb->ki_filp; /* XXX: temporary */ char __user *buf = iov[0].iov_base; size_t count = iov[0].iov_len; - if (nr_segs != 1) { - count = -EINVAL; - goto out; - } + if (nr_segs != 1) + return -EINVAL; data = filp->private_data; - len = strlen(data); - if (offset > len) { - count = 0; - goto out; - } - if (count > len - offset) - count = len - offset; - if (copy_to_user(buf, data + offset, count)) { - count = -EFAULT; - goto out; - } - iocb->ki_pos += count; + ret = simple_read_from_buffer(buf, count, &offset, data, strlen(data)); + if (ret <= 0) + return ret; + + iocb->ki_pos += ret; file_accessed(filp); -out: - return count; + + return ret; } static ssize_t hypfs_aio_write(struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, loff_t offset) |