From 18d44c5d062b97b97bb0162d9742440518958dc1 Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Sat, 7 Dec 2024 17:33:25 +0100 Subject: ceph: allocate sparse_ext map only for sparse reads If mounted with sparseread option, ceph_direct_read_write() ends up making an unnecessarily allocation for O_DIRECT writes. Fixes: 03bc06c7b0bd ("ceph: add new mount option to enable sparse reads") Signed-off-by: Ilya Dryomov Reviewed-by: Alex Markuze --- fs/ceph/file.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'fs/ceph') diff --git a/fs/ceph/file.c b/fs/ceph/file.c index 67468d88f139..851d70200c6b 100644 --- a/fs/ceph/file.c +++ b/fs/ceph/file.c @@ -1552,7 +1552,7 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter, } op = &req->r_ops[0]; - if (sparse) { + if (!write && sparse) { extent_cnt = __ceph_sparse_read_ext_count(inode, size); ret = ceph_alloc_sparse_ext_map(op, extent_cnt); if (ret) { -- cgit v1.2.3