[PATCH] IB/ipath: use more appropriate gfp flags
This helps us to survive better when memory is fragmented. Signed-off-by: Dave Olson <dave.olson@qlogic.com> Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com> Cc: "Michael S. Tsirkin" <mst@mellanox.co.il> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
parent
a40f55fc33
commit
0ed9a4a0b6
|
@ -705,6 +705,15 @@ static int ipath_create_user_egr(struct ipath_portdata *pd)
|
|||
unsigned e, egrcnt, alloced, egrperchunk, chunk, egrsize, egroff;
|
||||
size_t size;
|
||||
int ret;
|
||||
gfp_t gfp_flags;
|
||||
|
||||
/*
|
||||
* GFP_USER, but without GFP_FS, so buffer cache can be
|
||||
* coalesced (we hope); otherwise, even at order 4,
|
||||
* heavy filesystem activity makes these fail, and we can
|
||||
* use compound pages.
|
||||
*/
|
||||
gfp_flags = __GFP_WAIT | __GFP_IO | __GFP_COMP;
|
||||
|
||||
egrcnt = dd->ipath_rcvegrcnt;
|
||||
/* TID number offset for this port */
|
||||
|
@ -721,10 +730,8 @@ static int ipath_create_user_egr(struct ipath_portdata *pd)
|
|||
* memory pressure (creating large files and then copying them over
|
||||
* NFS while doing lots of MPI jobs), we hit some allocation
|
||||
* failures, even though we can sleep... (2.6.10) Still get
|
||||
* failures at 64K. 32K is the lowest we can go without waiting
|
||||
* more memory again. It seems likely that the coalescing in
|
||||
* free_pages, etc. still has issues (as it has had previously
|
||||
* during 2.6.x development).
|
||||
* failures at 64K. 32K is the lowest we can go without wasting
|
||||
* additional memory.
|
||||
*/
|
||||
size = 0x8000;
|
||||
alloced = ALIGN(egrsize * egrcnt, size);
|
||||
|
@ -745,12 +752,6 @@ static int ipath_create_user_egr(struct ipath_portdata *pd)
|
|||
goto bail_rcvegrbuf;
|
||||
}
|
||||
for (e = 0; e < pd->port_rcvegrbuf_chunks; e++) {
|
||||
/*
|
||||
* GFP_USER, but without GFP_FS, so buffer cache can be
|
||||
* coalesced (we hope); otherwise, even at order 4,
|
||||
* heavy filesystem activity makes these fail
|
||||
*/
|
||||
gfp_t gfp_flags = __GFP_WAIT | __GFP_IO | __GFP_COMP;
|
||||
|
||||
pd->port_rcvegrbuf[e] = dma_alloc_coherent(
|
||||
&dd->pcidev->dev, size, &pd->port_rcvegrbuf_phys[e],
|
||||
|
@ -1167,9 +1168,10 @@ static int ipath_mmap(struct file *fp, struct vm_area_struct *vma)
|
|||
|
||||
ureg = dd->ipath_uregbase + dd->ipath_palign * pd->port_port;
|
||||
|
||||
ipath_cdbg(MM, "ushare: pgaddr %llx vm_start=%lx, vmlen %lx\n",
|
||||
ipath_cdbg(MM, "pgaddr %llx vm_start=%lx len %lx port %u:%u\n",
|
||||
(unsigned long long) pgaddr, vma->vm_start,
|
||||
vma->vm_end - vma->vm_start);
|
||||
vma->vm_end - vma->vm_start, dd->ipath_unit,
|
||||
pd->port_port);
|
||||
|
||||
if (pgaddr == ureg)
|
||||
ret = mmap_ureg(vma, dd, ureg);
|
||||
|
|
Loading…
Reference in a new issue