Lines Matching full:stripe

11  * Each stripe contains one buffer per device.  Each buffer can be in
46  * will at worst delay some action, and the stripe will be scheduled
54  * To distinguish these states we have a stripe bit STRIPE_INSYNC that
61  * to the appropriate stripe in one of two lists linked on b_reqnext.
87  * Stripes in the stripe cache can be on one of two lists (or on
90  * for another stripe.  The "handle_list" contains stripes that need
92  * stripe is also (potentially) linked to a hash bucket in the hash
100  *  - If a stripe might need handling, STRIPE_HANDLE is set.
105  * cleared while a stripe has a non-zero count means that if the
108  * the stripe is on inactive_list.
111  *  activate an unhashed/inactive stripe (get_active_stripe())
112  *     lockdev check-hash unlink-stripe cnt++ clean-stripe hash-stripe unlockdev
113  *  activate a hashed, possibly active stripe (get_active_stripe())
114  *     lockdev check-hash if(!cnt++)unlink-stripe unlockdev
115  *  attach a request to an active stripe (add_stripe_bh())
117  *  handle a stripe (handle_stripe())
122  *  release an active stripe (release_stripe())
125  * The refcount counts each thread that have activated the stripe,
127  * on a cached buffer, and plus one if the stripe is undergoing stripe
130  * The stripe operations are:
131  * -copying data between the stripe cache and user application buffers
169  * enum check_states - handles syncing / repairing a stripe
187  * enum reconstruct_states - handles writing or expanding a stripe
215 	int			disks;		/* disks in stripe */
216 	int			overwrite_disks; /* total overwrite disks in stripe,
217 						  * this is only checked when stripe
226 	struct stripe_head	*batch_head; /* protected by stripe lock */
239 	struct page		*ppl_page; /* partial parity of this stripe */
331 			 * up-to-date at this stripe. */
335 	R5_Discard,	/* Discard the stripe */
336 	R5_SkipCopy,	/* Don't copy data from bio to stripe cache */
350  * Stripe state
388 	STRIPE_R5C_CACHING,	/* the stripe is in caching phase
440  * for the one stripe have all been collected.
444  * a stripe is put on it then we "plug" the queue and do not process it
447  * When preread is initiated on a stripe, we set PREREAD_ACTIVE and add
449  * When write is initiated, or the stripe refcnt == 0 (just in case) we
478  * Stripe cache
533 				 * stripe.
535 	R5_DID_ALLOC,		/* A stripe was allocated, don't allocate
547 	R5C_EXTRA_PAGE_IN_USE,	/* a stripe is using disk_info.extra_page
556 	sector_t sector; /* stripe sector */
624 	int			skip_copy; /* Don't copy data from bio to stripe cache */
705 /* bio's attached to a stripe+device for I/O are linked together in bi_sector
706  * order without overlap.  There may be several bio's per stripe+device, and
708  * When walking this list for a particular stripe+device, we must never proceed
712  * sector of the current stripe+device
810 /* get stripe from previous generation (when reshaping) */
812 /* do not block waiting for a free stripe */