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ceph: switch to ->read_iter()

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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2014-04-02 20:28:01 -04:00
parent 3aa2d199f8
commit 3644424dc6
1 changed files with 7 additions and 11 deletions
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18
fs/ceph/file.c
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@ -795,8 +795,7 @@ out:
*
* Hmm, the sync read case isn't actually async... should it be?
*/
static ssize_t ceph_aio_read(struct kiocb *iocb, const struct iovec *iov,
unsigned long nr_segs, loff_t pos)
static ssize_t ceph_read_iter(struct kiocb *iocb, struct iov_iter *to)
{
struct file *filp = iocb->ki_filp;
struct ceph_file_info *fi = filp->private_data;
@ -806,9 +805,6 @@ static ssize_t ceph_aio_read(struct kiocb *iocb, const struct iovec *iov,
ssize_t ret;
int want, got = 0;
int checkeof = 0, read = 0;
struct iov_iter i;
iov_iter_init(&i, READ, iov, nr_segs, len);
again:
dout("aio_read %p %llx.%llx %llu~%u trying to get caps on %p\n",
@ -831,13 +827,13 @@ again:
ceph_cap_string(got));
/* hmm, this isn't really async... */
ret = ceph_sync_read(iocb, &i, &checkeof);
ret = ceph_sync_read(iocb, to, &checkeof);
} else {
dout("aio_read %p %llx.%llx %llu~%u got cap refs on %s\n",
inode, ceph_vinop(inode), pos, (unsigned)len,
inode, ceph_vinop(inode), iocb->ki_pos, (unsigned)len,
ceph_cap_string(got));
ret = generic_file_read_iter(iocb, &i);
ret = generic_file_read_iter(iocb, to);
}
dout("aio_read %p %llx.%llx dropping cap refs on %s = %d\n",
inode, ceph_vinop(inode), ceph_cap_string(got), (int)ret);
@ -854,7 +850,7 @@ again:
", reading more\n", iocb->ki_pos,
inode->i_size);
iov_iter_advance(&i, ret);
iov_iter_advance(to, ret);
read += ret;
len -= ret;
checkeof = 0;
@ -1257,9 +1253,9 @@ const struct file_operations ceph_file_fops = {
.open = ceph_open,
.release = ceph_release,
.llseek = ceph_llseek,
.read = do_sync_read,
.read = new_sync_read,
.write = do_sync_write,
.aio_read = ceph_aio_read,
.read_iter = ceph_read_iter,
.aio_write = ceph_aio_write,
.mmap = ceph_mmap,
.fsync = ceph_fsync,