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Lines 973-979
static void crypt_free_buffer_pages(struct crypt_config *cc, struct bio *clone);
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| 973 |
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973 |
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/* |
974 |
/* |
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* Generate a new unfragmented bio with the given size |
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* Generate a new unfragmented bio with the given size |
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* This should never violate the device limitations |
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* This should never violate the device limitations (but only because |
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* max_segment_size is being constrained to PAGE_SIZE). |
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* |
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* |
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* This function may be called concurrently. If we allocate from the mempool |
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* This function may be called concurrently. If we allocate from the mempool |
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* concurrently, there is a possibility of deadlock. For example, if we have |
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* concurrently, there is a possibility of deadlock. For example, if we have |
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Lines 2057-2065
static int crypt_iterate_devices(struct dm_target *ti,
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return fn(ti, cc->dev, cc->start, ti->len, data); |
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return fn(ti, cc->dev, cc->start, ti->len, data); |
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} |
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} |
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2060 |
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static void crypt_io_hints(struct dm_target *ti, struct queue_limits *limits) |
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{ |
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/* |
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* Unfortunate constraint that is required to avoid the potential |
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* for exceeding underlying device's max_segments limits -- due to |
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* crypt_alloc_buffer() possibly allocating pages for the encryption |
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* bio that are not as physically contiguous as the original bio. |
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*/ |
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limits->max_segment_size = PAGE_SIZE; |
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} |
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static struct target_type crypt_target = { |
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static struct target_type crypt_target = { |
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.name = "crypt", |
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.name = "crypt", |
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.version = {1, 14, 0}, |
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.version = {1, 14, 1}, |
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.module = THIS_MODULE, |
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.module = THIS_MODULE, |
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.ctr = crypt_ctr, |
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.ctr = crypt_ctr, |
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.dtr = crypt_dtr, |
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.dtr = crypt_dtr, |
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Lines 2071-2076
static struct target_type crypt_target = {
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.message = crypt_message, |
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.message = crypt_message, |
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.merge = crypt_merge, |
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.merge = crypt_merge, |
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.iterate_devices = crypt_iterate_devices, |
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.iterate_devices = crypt_iterate_devices, |
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.io_hints = crypt_io_hints, |
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}; |
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}; |
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static int __init dm_crypt_init(void) |
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static int __init dm_crypt_init(void) |
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