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Code Issues Releases Wiki Activity

ceph: use default file splice read callback 

Splice read/write implementation changed recently. When using
generic_file_splice_read(), iov_iter with type == ITER_PIPE is
passed to filesystem's read_iter callback. But ceph_sync_read()
can't serve ITER_PIPE iov_iter correctly (ITER_PIPE iov_iter
expects pages from page cache).

Fixing ceph_sync_read() requires a big patch. So use default
splice read callback for now.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Yan, Zheng 2016-11-09 16:47:54 +08:00 committed by Ilya Dryomov
parent bc33b0ca11
commit 8a8d561766
1 changed files with 0 additions and 1 deletions
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fs/ceph/file.c
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@ -1770,7 +1770,6 @@ const struct file_operations ceph_file_fops = {
.fsync = ceph_fsync,
.lock = ceph_lock,
.flock = ceph_flock,
.splice_read = generic_file_splice_read,
.splice_write = iter_file_splice_write,
.unlocked_ioctl = ceph_ioctl,
.compat_ioctl = ceph_ioctl,