Tianyu Lan 625899cd06 swiotlb: max mapping size takes min align mask into account ... commit 82806744fd upstream. swiotlb_find_slots() skips slots according to io tlb aligned mask calculated from min aligned mask and original physical address offset. This affects max mapping size. The mapping size can't achieve the IO_TLB_SEGSIZE * IO_TLB_SIZE when original offset is non-zero. This will cause system boot up failure in Hyper-V Isolation VM where swiotlb force is enabled. Scsi layer use return value of dma_max_mapping_size() to set max segment size and it finally calls swiotlb_max_mapping_size(). Hyper-V storage driver sets min align mask to 4k - 1. Scsi layer may pass 256k length of request buffer with 0~4k offset and Hyper-V storage driver can't get swiotlb bounce buffer via DMA API. Swiotlb_find_slots() can't find 256k length bounce buffer with offset. Make swiotlb_max_mapping _size() take min align mask into account. Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Rishabh Bhatnagar <risbhat@amazon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2022-10-05 10:38:40 +02:00
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bpf	bpf, cgroup: Fix kernel BUG in purge_effective_progs	2022-09-08 11:11:36 +02:00
cgroup	cgroup: Add missing cpus_read_lock() to cgroup_attach_task_all()	2022-09-23 14:17:00 +02:00
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dma	swiotlb: max mapping size takes min align mask into account	2022-10-05 10:38:40 +02:00
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sched	sched/fair: Fix fault in reweight_entity	2022-08-21 15:16:26 +02:00
time	timekeeping: contribute wall clock to rng on time change	2022-08-21 15:16:20 +02:00
trace	tracing: hold caller_addr to hardirq_{enable,disable}_ip	2022-09-23 14:16:58 +02:00
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audit_fsnotify.c	audit: fix potential double free on error path from fsnotify_add_inode_mark	2022-08-31 17:15:13 +02:00
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fork.c	IB/core: Fix a nested dead lock as part of ODP flow	2022-09-15 11:32:05 +02:00
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sys_ni.c	kernel/sys_ni: add compat entry for fadvise64_64	2022-08-31 17:15:13 +02:00
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watchdog.c	watchdog: export lockup_detector_reconfigure	2022-08-25 11:38:20 +02:00
workqueue_internal.h
workqueue.c	workqueue: don't skip lockdep work dependency in cancel_work_sync()	2022-09-28 11:10:40 +02:00