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libdm: move thin max size to header
Move max size of thin metadata into define. Increase a bit the size to match the kernel size. (16978542592->17112760320)
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@ -749,6 +749,13 @@ int dm_tree_node_add_replicator_dev_target(struct dm_tree_node *node,
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*/
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#define DM_THIN_MIN_DATA_BLOCK_SIZE (UINT32_C(128))
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#define DM_THIN_MAX_DATA_BLOCK_SIZE (UINT32_C(2097152))
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/*
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* Max supported size for thin pool metadata device (17112760320 bytes)
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* Limitation is hardcoded into the kernel and bigger device size
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* is not accepted.
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* drivers/md/dm-thin-metadata.h THIN_METADATA_MAX_SECTORS
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*/
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#define DM_THIN_MAX_METADATA_SIZE (UINT64_C(255) * (1 << 14) * (4096 / (1 << 9)) - 256 * 1024)
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int dm_tree_node_add_thin_pool_target(struct dm_tree_node *node,
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uint64_t size,
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@ -3232,13 +3232,6 @@ int dm_tree_node_add_thin_pool_target(struct dm_tree_node *node,
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{
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struct load_segment *seg, *mseg;
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uint64_t devsize = 0;
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/*
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* Max supported size for thin pool metadata device
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* Limitation is hardcoded into kernel and bigger
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* device size is not accepted. (16978542592)
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*/
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const uint64_t max_metadata_size =
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255ULL * (1 << 14) * (4096 / (1 << 9)) - 256 * 1024;
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if (data_block_size < DM_THIN_MIN_DATA_BLOCK_SIZE) {
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log_error("Data block size %u is lower then %u sectors.",
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@ -3266,11 +3259,11 @@ int dm_tree_node_add_thin_pool_target(struct dm_tree_node *node,
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/* FIXME: more complex target may need more tweaks */
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dm_list_iterate_items(mseg, &seg->metadata->props.segs) {
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devsize += mseg->size;
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if (devsize > max_metadata_size) {
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if (devsize > DM_THIN_MAX_METADATA_SIZE) {
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log_debug_activation("Ignoring %" PRIu64 " of device.",
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devsize - max_metadata_size);
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mseg->size -= (devsize - max_metadata_size);
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devsize = max_metadata_size;
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devsize - DM_THIN_MAX_METADATA_SIZE);
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mseg->size -= (devsize - DM_THIN_MAX_METADATA_SIZE);
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devsize = DM_THIN_MAX_METADATA_SIZE;
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/* FIXME: drop remaining segs */
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}
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}
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