lic121 08ab406781 libbpf: Unmap rings when umem deleted ... [ Upstream commit 9c6e6a80ee ] xsk_umem__create() does mmap for fill/comp rings, but xsk_umem__delete() doesn't do the unmap. This works fine for regular cases, because xsk_socket__delete() does unmap for the rings. But for the case that xsk_socket__create_shared() fails, umem rings are not unmapped. fill_save/comp_save are checked to determine if rings have already be unmapped by xsk. If fill_save and comp_save are NULL, it means that the rings have already been used by xsk. Then they are supposed to be unmapped by xsk_socket__delete(). Otherwise, xsk_umem__delete() does the unmap. Fixes: 2f6324a393 ("libbpf: Support shared umems between queues and devices") Signed-off-by: Cheng Li <lic121@chinatelecom.cn> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20220301132623.GA19995@vscode.7~ Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-04-08 14:40:20 +02:00
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api	libperf: Avoid counting of nonfilterable fdarray fds	2020-07-21 09:53:22 -03:00
bpf	libbpf: Unmap rings when umem deleted	2022-04-08 14:40:20 +02:00
lockdep
perf	libperf tests: Fix test_stat_cpu	2021-10-27 09:56:55 +02:00
subcmd	libsubcmd: Fix use-after-free for realloc(..., 0)	2022-02-23 12:01:02 +01:00
symbol
traceevent	tools lib traceevent: Hide non API functions	2020-10-13 11:47:38 -03:00
argv_split.c
bitmap.c
ctype.c
find_bit.c
hweight.c
rbtree.c	tools/: replace HTTP links with HTTPS ones	2020-08-07 11:33:21 -07:00
str_error_r.c
string.c	tools lib: Adopt memchr_inv() from kernel	2021-09-26 14:08:57 +02:00
vsprintf.c
zalloc.c