Splitting sg chain allocation support from scsi
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- v1 Latest2 patches 2 repliesIn review
Patches in v1 No applies recorded yet
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | SG: Move functions to lib/scatterlist.c and add sg chaining allocator helpersinclude/ lib/ lib/ | +267 | 0 replies | |
| 2/2 | SG: Convert SCSI to use scatterlist helpers for sg chainingdrivers/ drivers/ include/ | +23 | 2 replies |
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Cover letter [PATCH 0/2] Splitting sg chain allocation support from scsi
Hi,
Currently scsi_lib.c does its own sg chain allocation and freeing, as it was proof of concept. But other drivers may want to take advantage of that feature as well. These two patches add a lib/scatterlist.c and moves most of the linux/scatterlist.h big include into that, and adds helpers for allocating and initializing an sg list.
This adds a new kernel define SG_MAX_SINGLE_ALLOC that sets the boundary for when sg_alloc_table() will return a chained list, that used to be a scsi private thing.
The patch still needs a bit of cleaning up and documenting, but it's a start. Boots and works here.
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Jens Axboe