diff options
| author | Dmitry Chagin <dchagin@FreeBSD.org> | 2022-03-31 18:04:44 +0000 |
|---|---|---|
| committer | Dmitry Chagin <dchagin@FreeBSD.org> | 2022-03-31 18:04:44 +0000 |
| commit | b7df7b987e8fac05006aa5f132c424e2b2bcf156 (patch) | |
| tree | fb782ef4d6c5e65fbfb768622e94fd8d72aaffe4 /sys/compat/linprocfs | |
| parent | d5dc757e84d8dc1db987f3a17052e32621d6ea87 (diff) | |
Diffstat (limited to 'sys/compat/linprocfs')
| -rw-r--r-- | sys/compat/linprocfs/linprocfs.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/sys/compat/linprocfs/linprocfs.c b/sys/compat/linprocfs/linprocfs.c index 6a1a680f622a..8a9525b4375d 100644 --- a/sys/compat/linprocfs/linprocfs.c +++ b/sys/compat/linprocfs/linprocfs.c @@ -80,6 +80,7 @@ __FBSDID("$FreeBSD$"); #include <sys/vmmeter.h> #include <sys/vnode.h> #include <sys/bus.h> +#include <sys/uio.h> #include <net/if.h> #include <net/if_var.h> @@ -104,6 +105,7 @@ __FBSDID("$FreeBSD$"); #endif /* __i386__ || __amd64__ */ #include <compat/linux/linux.h> +#include <compat/linux/linux_emul.h> #include <compat/linux/linux_mib.h> #include <compat/linux/linux_misc.h> #include <compat/linux/linux_util.h> @@ -1933,6 +1935,32 @@ linprocfs_doauxv(PFS_FILL_ARGS) } /* + * Filler function for proc/self/oom_score_adj + */ +static int +linprocfs_do_oom_score_adj(PFS_FILL_ARGS) +{ + struct linux_pemuldata *pem; + long oom; + + pem = pem_find(p); + if (pem == NULL || uio == NULL) + return (EOPNOTSUPP); + if (uio->uio_rw == UIO_READ) { + sbuf_printf(sb, "%d\n", pem->oom_score_adj); + } else { + sbuf_trim(sb); + sbuf_finish(sb); + oom = strtol(sbuf_data(sb), NULL, 10); + if (oom < LINUX_OOM_SCORE_ADJ_MIN || + oom > LINUX_OOM_SCORE_ADJ_MAX) + return (EINVAL); + pem->oom_score_adj = oom; + } + return (0); +} + +/* * Constructor */ static int @@ -2018,6 +2046,8 @@ linprocfs_init(PFS_INIT_ARGS) NULL, &procfs_candebug, NULL, PFS_RD|PFS_RAWRD); pfs_create_file(dir, "limits", &linprocfs_doproclimits, NULL, NULL, NULL, PFS_RD); + pfs_create_file(dir, "oom_score_adj", &linprocfs_do_oom_score_adj, + procfs_attr_rw, &procfs_candebug, NULL, PFS_RDWR); /* /proc/<pid>/task/... */ dir = pfs_create_dir(dir, "task", linprocfs_dotaskattr, NULL, NULL, 0); |