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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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d96adb9b07
The current logic of calculating sg_nents can fail if data_offset % PAGE_SIZE is not zero. For example - PAGE_SIZE = 4096 data_len = 3072 data_offset = 3072 As per current logic sg_nents = max(1UL, DIV_ROUND_UP(data_len, PAGE_SIZE)); sg_nents = max(1UL, DIV_ROUND_UP(3072, 4096)); sg_nents = 1 But as data_offset % PAGE_SIZE = 3072 we should skip 3072 bytes skip = 3K sg_nents = max(1UL, DIV_ROUND_UP(3K(skip) + 3K(data_len), 4K(PAGE_SIZE)); sg_nents = 2; This patch fixes this issue by adding skip to data_len. Signed-off-by: Varun Prakash <varun@chelsio.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org> |
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| .. | ||
| cxgbit_cm.c | ||
| cxgbit_ddp.c | ||
| cxgbit_lro.h | ||
| cxgbit_main.c | ||
| cxgbit_target.c | ||
| cxgbit.h | ||
| Kconfig | ||
| Makefile | ||