On 30.08.2017 18:00, Christoph Hellwig wrote: > Instead of playing with the addressing limits. > > Signed-off-by: Christoph Hellwig <[email protected]> > ---
Reviewed-by: Nikolay Borisov <[email protected]> > fs/btrfs/send.c | 18 ++++-------------- > 1 file changed, 4 insertions(+), 14 deletions(-) > > diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c > index b082210df9c8..24b989fd130c 100644 > --- a/fs/btrfs/send.c > +++ b/fs/btrfs/send.c > @@ -539,33 +539,23 @@ static struct btrfs_path *alloc_path_for_send(void) > static int write_buf(struct file *filp, const void *buf, u32 len, loff_t > *off) > { > int ret; > - mm_segment_t old_fs; > u32 pos = 0; > > - old_fs = get_fs(); > - set_fs(KERNEL_DS); > - > while (pos < len) { > - ret = vfs_write(filp, (__force const char __user *)buf + pos, > - len - pos, off); > + ret = kernel_write(filp, buf + pos, len - pos, off); > /* TODO handle that correctly */ > /*if (ret == -ERESTARTSYS) { > continue; > }*/ > if (ret < 0) > - goto out; > + return ret; > if (ret == 0) { > - ret = -EIO; > - goto out; > + return -EIO; > } > pos += ret; > } > > - ret = 0; > - > -out: > - set_fs(old_fs); > - return ret; > + return 0; > } > > static int tlv_put(struct send_ctx *sctx, u16 attr, const void *data, int > len) >
