diff options
| author | Toke Høiland-Jørgensen <toke@redhat.com> | 2019-11-05 16:57:50 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-12-05 09:19:45 +0100 |
| commit | b707e0da2791c0e8a36c20f81d63fd264a267bf4 (patch) | |
| tree | b3053bd5ffcf4c5e8eb7ffce6dcb3de8aa27a428 /include/net | |
| parent | a8a61f82cc9ff679a5621952f907f129acc23cd6 (diff) | |
net/fq_impl: Switch to kvmalloc() for memory allocation
[ Upstream commit 71e67c3bd127cfe7863f54e4b087eba1cc8f9a7a ]
The FQ implementation used by mac80211 allocates memory using kmalloc(),
which can fail; and Johannes reported that this actually happens in
practice.
To avoid this, switch the allocation to kvmalloc() instead; this also
brings fq_impl in line with all the FQ qdiscs.
Fixes: 557fc4a09803 ("fq: add fair queuing framework")
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/r/20191105155750.547379-1-toke@redhat.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/fq_impl.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/net/fq_impl.h b/include/net/fq_impl.h index 89a012905ef0..4b3e18ff8e6f 100644 --- a/include/net/fq_impl.h +++ b/include/net/fq_impl.h @@ -312,7 +312,7 @@ static int fq_init(struct fq *fq, int flows_cnt) fq->limit = 8192; fq->memory_limit = 16 << 20; /* 16 MBytes */ - fq->flows = kcalloc(fq->flows_cnt, sizeof(fq->flows[0]), GFP_KERNEL); + fq->flows = kvcalloc(fq->flows_cnt, sizeof(fq->flows[0]), GFP_KERNEL); if (!fq->flows) return -ENOMEM; @@ -330,7 +330,7 @@ static void fq_reset(struct fq *fq, for (i = 0; i < fq->flows_cnt; i++) fq_flow_reset(fq, &fq->flows[i], free_func); - kfree(fq->flows); + kvfree(fq->flows); fq->flows = NULL; } |