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| author | Xiubo Li <xiubli@redhat.com> | 2023-11-07 10:44:41 +0800 |
|---|---|---|
| committer | Ilya Dryomov <idryomov@gmail.com> | 2024-01-15 15:40:50 +0100 |
| commit | aaefabc4a5f7ae48682c4d2d5d10faaf95c08eb9 (patch) | |
| tree | 68fb900421a3f1eb962988abc7a13b621cacac69 /include/linux/ceph | |
| parent | b79e4a0aa902322756ced7361a2c637d462c3c1c (diff) | |
| download | linux-stable-aaefabc4a5f7ae48682c4d2d5d10faaf95c08eb9.tar.gz linux-stable-aaefabc4a5f7ae48682c4d2d5d10faaf95c08eb9.tar.bz2 linux-stable-aaefabc4a5f7ae48682c4d2d5d10faaf95c08eb9.zip | |
ceph: try to allocate a smaller extent map for sparse read
In fscrypt case and for a smaller read length we can predict the
max count of the extent map. And for small read length use cases
this could save some memories.
[ idryomov: squash into a single patch to avoid build break, drop
redundant variable in ceph_alloc_sparse_ext_map() ]
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Diffstat (limited to 'include/linux/ceph')
| -rw-r--r-- | include/linux/ceph/osd_client.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/include/linux/ceph/osd_client.h b/include/linux/ceph/osd_client.h index b8610e9d2471..fa018d5864e7 100644 --- a/include/linux/ceph/osd_client.h +++ b/include/linux/ceph/osd_client.h @@ -572,9 +572,12 @@ int __ceph_alloc_sparse_ext_map(struct ceph_osd_req_op *op, int cnt); */ #define CEPH_SPARSE_EXT_ARRAY_INITIAL 16 -static inline int ceph_alloc_sparse_ext_map(struct ceph_osd_req_op *op) +static inline int ceph_alloc_sparse_ext_map(struct ceph_osd_req_op *op, int cnt) { - return __ceph_alloc_sparse_ext_map(op, CEPH_SPARSE_EXT_ARRAY_INITIAL); + if (!cnt) + cnt = CEPH_SPARSE_EXT_ARRAY_INITIAL; + + return __ceph_alloc_sparse_ext_map(op, cnt); } extern void ceph_osdc_get_request(struct ceph_osd_request *req); |