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| author | Ilya Dryomov <idryomov@gmail.com> | 2024-12-07 17:33:25 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-01-02 10:34:09 +0100 |
| commit | 122a2f3550a857e40abb7d231750f224f764afa8 (patch) | |
| tree | fda52e844e5e065f57235e41212199a10d717939 /net | |
| parent | c1197c1457bb7098cf46366e898eb52b41b6876a (diff) | |
| download | linux-122a2f3550a857e40abb7d231750f224f764afa8.tar.gz linux-122a2f3550a857e40abb7d231750f224f764afa8.tar.bz2 linux-122a2f3550a857e40abb7d231750f224f764afa8.zip | |
ceph: allocate sparse_ext map only for sparse reads
[ Upstream commit 18d44c5d062b97b97bb0162d9742440518958dc1 ]
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 <idryomov@gmail.com>
Reviewed-by: Alex Markuze <amarkuze@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'net')
| -rw-r--r-- | net/ceph/osd_client.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index 9d078b37fe0b..abac770bc0b4 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -1173,6 +1173,8 @@ EXPORT_SYMBOL(ceph_osdc_new_request); int __ceph_alloc_sparse_ext_map(struct ceph_osd_req_op *op, int cnt) { + WARN_ON(op->op != CEPH_OSD_OP_SPARSE_READ); + op->extent.sparse_ext_cnt = cnt; op->extent.sparse_ext = kmalloc_array(cnt, sizeof(*op->extent.sparse_ext), |