Xiubo Li fb98248fc4 ceph: try to allocate a smaller extent map for sparse read ...

[ Upstream commit aaefabc4a5 ]

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: 18d44c5d06 ("ceph: allocate sparse_ext map only for sparse reads")
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-01-02 10:31:59 +01:00

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auth.h

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buffer.h

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ceph_debug.h

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ceph_features.h

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ceph_frag.h

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ceph_fs.h

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ceph_hash.h

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cls_lock_client.h

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debugfs.h

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decode.h

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libceph.h

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mdsmap.h

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messenger.h

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mon_client.h

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msgpool.h

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msgr.h

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osd_client.h

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osdmap.h

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pagelist.h

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rados.h

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string_table.h

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striper.h

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types.h

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