[ Upstream commit aaefabc4a5f7ae48682c4d2d5d10faaf95c08eb9 ]
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>
Stable-dep-of: 18d44c5d062b ("ceph: allocate sparse_ext map only for sparse reads")
Signed-off-by: Sasha Levin <sashal@kernel.org>
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| .. | ||
| auth.h | ||
| buffer.h | ||
| ceph_debug.h | ||
| ceph_features.h | ||
| ceph_frag.h | ||
| ceph_fs.h | ||
| ceph_hash.h | ||
| cls_lock_client.h | ||
| debugfs.h | ||
| decode.h | ||
| libceph.h | ||
| mdsmap.h | ||
| messenger.h | ||
| mon_client.h | ||
| msgpool.h | ||
| msgr.h | ||
| osd_client.h | ||
| osdmap.h | ||
| pagelist.h | ||
| rados.h | ||
| string_table.h | ||
| striper.h | ||
| types.h | ||