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PGPRO-427: Add lock for datapagemap_add
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parent
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12
src/backup.c
12
src/backup.c
@ -46,6 +46,9 @@ const char *progname = "pg_probackup";
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/* list of files contained in backup */
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static parray *backup_files_list = NULL;
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/* We need critical section for datapagemap_add() in case of using threads */
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static pthread_mutex_t backup_pagemap_mutex = PTHREAD_MUTEX_INITIALIZER;
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/*
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* We need to wait end of WAL streaming before execute pg_stop_backup().
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*/
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@ -2333,8 +2336,17 @@ process_block_change(ForkNumber forknum, RelFileNode rnode, BlockNumber blkno)
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* backup would simply copy it as-is.
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*/
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if (file_item)
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{
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/* We need critical section only we use more than one threads */
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if (num_threads > 1)
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pthread_mutex_lock(&backup_pagemap_mutex);
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datapagemap_add(&(*file_item)->pagemap, blkno_inseg);
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if (num_threads > 1)
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pthread_mutex_unlock(&backup_pagemap_mutex);
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}
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pg_free(path);
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}
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