diff options
| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-15 07:44:51 +0200 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2008-07-15 07:44:51 +0200 |
| commit | 43d2548bb2ef7e6d753f91468a746784041e522d (patch) | |
| tree | 77d13fcd48fd998393abb825ec36e2b732684a73 /arch/s390/hypfs/inode.c | |
| parent | powerpc: Fix pte_update for CONFIG_PTE_64BIT and !PTE_ATOMIC_UPDATES (diff) | |
| parent | Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm (diff) | |
| download | linux-43d2548bb2ef7e6d753f91468a746784041e522d.tar.xz linux-43d2548bb2ef7e6d753f91468a746784041e522d.zip | |
Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-build
Manual fixup of:
arch/powerpc/Kconfig
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 4b010ff814c9..7383781f3e6a 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) |