Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=1d96354e617990799b1cb5d7ff8f7c467b8767c8
Commit: 1d96354e617990799b1cb5d7ff8f7c467b8767c8
Parent: 9fe4bcf45ece0b0081031edaaa41581c85ef7049
Author: Or Gerlitz <[EMAIL PROTECTED]>
AuthorDate: Tue Jan 29 12:56:18 2008 +0200
Committer: Roland Dreier <[EMAIL PROTECTED]>
CommitDate: Mon Feb 4 20:20:44 2008 -0800
IB/fmr_pool: Allocate page list for pool FMRs only when caching enabled
Allocate memory for the page_list field of struct ib_pool_fmr only
when caching is enabled for the FMR pool, since the field is not used
otherwise. This can save significant amounts of memory for large
pools with caching turned off.
Signed-off-by: Or Gerlitz <[EMAIL PROTECTED]>
Signed-off-by: Roland Dreier <[EMAIL PROTECTED]>
---
drivers/infiniband/core/fmr_pool.c | 7 +++++--
1 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/infiniband/core/fmr_pool.c
b/drivers/infiniband/core/fmr_pool.c
index 6c7aa59..7f00347 100644
--- a/drivers/infiniband/core/fmr_pool.c
+++ b/drivers/infiniband/core/fmr_pool.c
@@ -320,10 +320,13 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd
*pd,
.max_maps = pool->max_remaps,
.page_shift = params->page_shift
};
+ int bytes_per_fmr = sizeof *fmr;
+
+ if (pool->cache_bucket)
+ bytes_per_fmr += params->max_pages_per_fmr * sizeof
(u64);
for (i = 0; i < params->pool_size; ++i) {
- fmr = kmalloc(sizeof *fmr + params->max_pages_per_fmr *
sizeof (u64),
- GFP_KERNEL);
+ fmr = kmalloc(bytes_per_fmr, GFP_KERNEL);
if (!fmr) {
printk(KERN_WARNING PFX "failed to allocate fmr
"
"struct for FMR %d\n", i);
-
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