ddf142e5a8
In huge uevents generating system, especially for user apps who have small size of rcvbuf socket, it has been reported that netlink overrun happens quite frequently. Moreover, if there's no POLLERR (caused by this netlink overrun) handler in user apps, the system can almost be stucked by calling 'poll' repeatedly. Regarding this issue, I have sent a kernel netlink patch to linux maintainers and got replied that this is absolutely user app's problem, must not addressing kernel. Until Android team look into this issue and some modification comes out, we need kernel patch for temporary. To minimize the effect by this patch to the others who have never met this issue, I would like to just add netlink's dedicated poll and its hooks. Please refer to below v1/v2 patch links for history. v1: https://lore.kernel.org/netdev/20231110110002.7279f895@kernel.org/T/#t v2: https://lore.kernel.org/netdev/d599922fd89b3e61c7cf531a03ea8b81cbcb003e.camel@redhat.com/T/#t Bug: 300009377 Link: https://lore.kernel.org/netdev/d599922fd89b3e61c7cf531a03ea8b81cbcb003e.camel@redhat.com/T/#t Change-Id: I4f11399d61c10332ba05bac64cfa1e92bb111565 Signed-off-by: Jong eon Park <jongeon.park@samsung.com> |
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| .. | ||
| af_netlink.c | ||
| af_netlink.h | ||
| diag.c | ||
| genetlink.c | ||
| Kconfig | ||
| Makefile | ||
| policy.c | ||