lwn.git/net/rds/ib_fmr.c, branch docs-5.8-2

net: rds: exchange of 8K and 1M pool

2019-04-24T19:07:08+00:00

Before the commit 490ea5967b0d ("RDS: IB: move FMR code to its own file"), when the dirty_count is greater than 9/10 of max_items of 8K pool, 1M pool is used, Vice versa. After the commit 490ea5967b0d ("RDS: IB: move FMR code to its own file"), the above is removed. When we make the following tests. Server: rds-stress -r 1.1.1.16 -D 1M Client: rds-stress -r 1.1.1.14 -s 1.1.1.16 -D 1M The following will appear. " connecting to 1.1.1.16:4000 negotiated options, tasks will start in 2 seconds Starting up..header from 1.1.1.166:4001 to id 4001 bogus .. tsks tx/s rx/s tx+rx K/s mbi K/s mbo K/s tx us/c rtt us cpu % 1 0 0 0.00 0.00 0.00 0.00 0.00 -1.00 1 0 0 0.00 0.00 0.00 0.00 0.00 -1.00 1 0 0 0.00 0.00 0.00 0.00 0.00 -1.00 1 0 0 0.00 0.00 0.00 0.00 0.00 -1.00 1 0 0 0.00 0.00 0.00 0.00 0.00 -1.00 ... " So this exchange between 8K and 1M pool is added back. Fixes: commit 490ea5967b0d ("RDS: IB: move FMR code to its own file") Signed-off-by: Zhu Yanjun Acked-by: Santosh Shilimkar Signed-off-by: David S. Miller

IB/core: Remove ib_sg_dma_address() and ib_sg_dma_len()

2019-02-04T21:34:07+00:00

Keeping single line wrapper functions is not useful. Hence remove the ib_sg_dma_address() and ib_sg_dma_len() functions. This patch does not change any functionality. Signed-off-by: Bart Van Assche Signed-off-by: Jason Gunthorpe

net/rds/ib_fmr.c: use kmalloc_array_node()

2017-11-16T02:21:02+00:00

Now that we have a NUMA-aware version of kmalloc_array() we can use it instead of kmalloc_node() without an overflow check in the size calculation. Link: http://lkml.kernel.org/r/20170927082038.3782-7-jthumshirn@suse.de Signed-off-by: Johannes Thumshirn Reviewed-by: Christoph Lameter Cc: Santosh Shilimkar Cc: "David S. Miller" Cc: Christoph Hellwig Cc: Damien Le Moal Cc: David Rientjes Cc: Doug Ledford Cc: Hal Rosenstock Cc: Jens Axboe Cc: Joonsoo Kim Cc: Mike Marciniszyn Cc: Pekka Enberg Cc: Sean Hefty Cc: Vlastimil Babka Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

rds: ib: unmap the scatter/gather list when error

2017-03-14T06:20:05+00:00

When some errors occur, the scatter/gather list mapped to DMA addresses should be handled. Cc: Joe Jin Cc: Junxiao Bi Acked-by: Santosh Shilimkar Signed-off-by: Zhu Yanjun Signed-off-by: David S. Miller

rds: ib: add the static type to the function

2017-03-14T06:20:05+00:00

The function rds_ib_map_fmr is used only in the ib_fmr.c file. As such, the static type is added to limit it in this file. Cc: Joe Jin Cc: Junxiao Bi Acked-by: Santosh Shilimkar Signed-off-by: Zhu Yanjun Signed-off-by: David S. Miller

rds: ib: remove redundant ib_dealloc_fmr

2017-03-14T06:20:05+00:00

The function ib_dealloc_fmr will never be called. As such, it should be removed. Cc: Joe Jin Cc: Junxiao Bi Reviewed-by: Yuval Shaia Reviewed-by: Johannes Thumshirn Acked-by: Santosh Shilimkar Signed-off-by: Zhu Yanjun Signed-off-by: David S. Miller

RDS: IB: move FMR code to its own file

2016-03-02T19:13:18+00:00

No functional change. Signed-off-by: Santosh Shilimkar Signed-off-by: Santosh Shilimkar Signed-off-by: David S. Miller

RDS: IB: create struct rds_ib_fmr

2016-03-02T19:13:18+00:00

Keep fmr related filed in its own struct. Fastreg MR structure will be added to the union. Signed-off-by: Santosh Shilimkar Signed-off-by: Santosh Shilimkar Signed-off-by: David S. Miller

RDS: IB: Re-organise ibmr code

2016-03-02T19:13:18+00:00

No functional changes. This is in preperation towards adding fastreg memory resgitration support. Signed-off-by: Santosh Shilimkar Signed-off-by: Santosh Shilimkar Signed-off-by: David S. Miller