bpf task local storage is now using task_struct->bpf_storage, so bpf_lsm_blob_sizes.lbs_task is no longer needed. Remove it to save some memory.
Fixes: a10787e6d58c ("bpf: Enable task local storage for tracing programs") Cc: stable@vger.kernel.org Cc: KP Singh kpsingh@kernel.org Cc: Matt Bobrowski mattbobrowski@google.com Signed-off-by: Song Liu song@kernel.org --- security/bpf/hooks.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/security/bpf/hooks.c b/security/bpf/hooks.c index 57b9ffd53c98..3663aec7bcbd 100644 --- a/security/bpf/hooks.c +++ b/security/bpf/hooks.c @@ -31,7 +31,6 @@ static int __init bpf_lsm_init(void)
struct lsm_blob_sizes bpf_lsm_blob_sizes __ro_after_init = { .lbs_inode = sizeof(struct bpf_storage_blob), - .lbs_task = sizeof(struct bpf_storage_blob), };
DEFINE_LSM(bpf) = {
On Tue, Sep 10, 2024 at 10:55:08PM -0700, Song Liu wrote:
bpf task local storage is now using task_struct->bpf_storage, so bpf_lsm_blob_sizes.lbs_task is no longer needed. Remove it to save some memory.
Makes sense to me.
Acked-by: Matt Bobrowski mattbobrowski@google.com
Fixes: a10787e6d58c ("bpf: Enable task local storage for tracing programs") Cc: stable@vger.kernel.org Cc: KP Singh kpsingh@kernel.org Cc: Matt Bobrowski mattbobrowski@google.com Signed-off-by: Song Liu song@kernel.org
security/bpf/hooks.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/security/bpf/hooks.c b/security/bpf/hooks.c index 57b9ffd53c98..3663aec7bcbd 100644 --- a/security/bpf/hooks.c +++ b/security/bpf/hooks.c @@ -31,7 +31,6 @@ static int __init bpf_lsm_init(void) struct lsm_blob_sizes bpf_lsm_blob_sizes __ro_after_init = { .lbs_inode = sizeof(struct bpf_storage_blob),
- .lbs_task = sizeof(struct bpf_storage_blob),
}; DEFINE_LSM(bpf) = { -- 2.43.5
/M
Hello:
This patch was applied to bpf/bpf-next.git (master) by Alexei Starovoitov ast@kernel.org:
On Tue, 10 Sep 2024 22:55:08 -0700 you wrote:
bpf task local storage is now using task_struct->bpf_storage, so bpf_lsm_blob_sizes.lbs_task is no longer needed. Remove it to save some memory.
Fixes: a10787e6d58c ("bpf: Enable task local storage for tracing programs") Cc: stable@vger.kernel.org Cc: KP Singh kpsingh@kernel.org Cc: Matt Bobrowski mattbobrowski@google.com Signed-off-by: Song Liu song@kernel.org
[...]
Here is the summary with links: - [bpf-next] bpf: lsm: Set bpf_lsm_blob_sizes.lbs_task to 0 https://git.kernel.org/bpf/bpf-next/c/300a90b2cb5d
You are awesome, thank you!
linux-stable-mirror@lists.linaro.org
-
Matt Bobrowski -
patchwork-bot+netdevbpf＠kernel.org -
Song Liu