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@ -3,7 +3,7 @@ |
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#include "xor.h" |
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#include "osd_rmw.h" |
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static inline void extend_read(uint32_t start, uint32_t end, osd_read_stripe_t & stripe) |
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static inline void extend_read(uint32_t start, uint32_t end, osd_rmw_stripe_t & stripe) |
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{ |
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if (stripe.read_end == 0) |
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{ |
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@ -19,7 +19,7 @@ static inline void extend_read(uint32_t start, uint32_t end, osd_read_stripe_t & |
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} |
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} |
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static inline void cover_read(uint32_t start, uint32_t end, osd_read_stripe_t & stripe) |
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static inline void cover_read(uint32_t start, uint32_t end, osd_rmw_stripe_t & stripe) |
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{ |
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// Subtract <to> write request from <from> request
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if (start >= stripe.req_start && |
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@ -53,7 +53,7 @@ static inline void cover_read(uint32_t start, uint32_t end, osd_read_stripe_t & |
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} |
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} |
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void split_stripes(uint64_t pg_minsize, uint32_t bs_block_size, uint32_t start, uint32_t end, osd_read_stripe_t *stripes) |
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void split_stripes(uint64_t pg_minsize, uint32_t bs_block_size, uint32_t start, uint32_t end, osd_rmw_stripe_t *stripes) |
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{ |
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end = start+end; |
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for (int role = 0; role < pg_minsize; role++) |
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@ -66,7 +66,7 @@ void split_stripes(uint64_t pg_minsize, uint32_t bs_block_size, uint32_t start, |
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} |
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} |
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void reconstruct_stripe(osd_read_stripe_t *stripes, int pg_size, int role) |
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void reconstruct_stripe(osd_rmw_stripe_t *stripes, int pg_size, int role) |
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{ |
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int prev = -2; |
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for (int other = 0; other < pg_size; other++) |
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@ -98,7 +98,7 @@ void reconstruct_stripe(osd_read_stripe_t *stripes, int pg_size, int role) |
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} |
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} |
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int extend_missing_stripes(osd_read_stripe_t *stripes, osd_num_t *osd_set, int minsize, int size) |
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int extend_missing_stripes(osd_rmw_stripe_t *stripes, osd_num_t *osd_set, int minsize, int size) |
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{ |
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for (int role = 0; role < minsize; role++) |
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{ |
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@ -131,7 +131,7 @@ int extend_missing_stripes(osd_read_stripe_t *stripes, osd_num_t *osd_set, int m |
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return 0; |
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} |
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void* alloc_read_buffer(osd_read_stripe_t *stripes, int read_pg_size, uint64_t add_size) |
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void* alloc_read_buffer(osd_rmw_stripe_t *stripes, int read_pg_size, uint64_t add_size) |
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{ |
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// Calculate buffer size
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uint64_t buf_size = add_size; |
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@ -156,7 +156,7 @@ void* alloc_read_buffer(osd_read_stripe_t *stripes, int read_pg_size, uint64_t a |
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return buf; |
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} |
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void* calc_rmw_reads(void *write_buf, osd_read_stripe_t *stripes, uint64_t *osd_set, uint64_t pg_size, uint64_t pg_minsize, uint64_t pg_cursize) |
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void* calc_rmw_reads(void *write_buf, osd_rmw_stripe_t *stripes, uint64_t *osd_set, uint64_t pg_size, uint64_t pg_minsize, uint64_t pg_cursize) |
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{ |
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// Generic parity modification (read-modify-write) algorithm
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// Reconstruct -> Read -> Calc parity -> Write
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@ -238,7 +238,7 @@ void* calc_rmw_reads(void *write_buf, osd_read_stripe_t *stripes, uint64_t *osd_ |
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return rmw_buf; |
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} |
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static void get_old_new_buffers(osd_read_stripe_t & stripe, uint32_t wr_start, uint32_t wr_end, buf_len_t *bufs, int & nbufs) |
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static void get_old_new_buffers(osd_rmw_stripe_t & stripe, uint32_t wr_start, uint32_t wr_end, buf_len_t *bufs, int & nbufs) |
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{ |
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uint32_t ns = 0, ne = 0, os = 0, oe = 0; |
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if (stripe.req_end > wr_start && |
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@ -319,7 +319,7 @@ static void xor_multiple_buffers(buf_len_t *xor1, int n1, buf_len_t *xor2, int n |
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} |
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} |
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void calc_rmw_parity(osd_read_stripe_t *stripes, int pg_size) |
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void calc_rmw_parity(osd_rmw_stripe_t *stripes, int pg_size) |
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{ |
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if (stripes[pg_size-1].missing) |
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{ |
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