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Resync or recovery must be performed by only one node at a time. A DLM lock resource, resync_lockres provides the mutual exclusion so that only one node performs the recovery/resync at a time. If a node is unable to get the resync_lockres, because recovery is being performed by another node, it set MD_RECOVER_NEEDED so as to schedule recovery in the future. Remove the debug message in resync_info_update() used during development. Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
30 lines
971 B
C
30 lines
971 B
C
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#ifndef _MD_CLUSTER_H
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#define _MD_CLUSTER_H
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#include "md.h"
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struct mddev;
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struct md_rdev;
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struct md_cluster_operations {
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int (*join)(struct mddev *mddev, int nodes);
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int (*leave)(struct mddev *mddev);
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int (*slot_number)(struct mddev *mddev);
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int (*resync_info_update)(struct mddev *mddev, sector_t lo, sector_t hi);
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int (*metadata_update_start)(struct mddev *mddev);
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int (*metadata_update_finish)(struct mddev *mddev);
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int (*metadata_update_cancel)(struct mddev *mddev);
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int (*resync_start)(struct mddev *mddev);
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int (*resync_finish)(struct mddev *mddev);
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int (*area_resyncing)(struct mddev *mddev, int direction, sector_t lo, sector_t hi);
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int (*add_new_disk_start)(struct mddev *mddev, struct md_rdev *rdev);
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int (*add_new_disk_finish)(struct mddev *mddev);
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int (*new_disk_ack)(struct mddev *mddev, bool ack);
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int (*remove_disk)(struct mddev *mddev, struct md_rdev *rdev);
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int (*gather_bitmaps)(struct md_rdev *rdev);
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};
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#endif /* _MD_CLUSTER_H */
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