diff options
Diffstat (limited to 'kernel/ucount.c')
-rw-r--r-- | kernel/ucount.c | 34 |
1 files changed, 15 insertions, 19 deletions
diff --git a/kernel/ucount.c b/kernel/ucount.c index 06ea04d44685..ee8e57fd6f90 100644 --- a/kernel/ucount.c +++ b/kernel/ucount.c @@ -87,10 +87,6 @@ static struct ctl_table user_table[] = { UCOUNT_ENTRY("max_fanotify_groups"), UCOUNT_ENTRY("max_fanotify_marks"), #endif - { }, - { }, - { }, - { }, { } }; #endif /* CONFIG_SYSCTL */ @@ -263,29 +259,29 @@ void dec_ucount(struct ucounts *ucounts, enum ucount_type type) put_ucounts(ucounts); } -long inc_rlimit_ucounts(struct ucounts *ucounts, enum ucount_type type, long v) +long inc_rlimit_ucounts(struct ucounts *ucounts, enum rlimit_type type, long v) { struct ucounts *iter; long max = LONG_MAX; long ret = 0; for (iter = ucounts; iter; iter = iter->ns->ucounts) { - long new = atomic_long_add_return(v, &iter->ucount[type]); + long new = atomic_long_add_return(v, &iter->rlimit[type]); if (new < 0 || new > max) ret = LONG_MAX; else if (iter == ucounts) ret = new; - max = READ_ONCE(iter->ns->ucount_max[type]); + max = get_userns_rlimit_max(iter->ns, type); } return ret; } -bool dec_rlimit_ucounts(struct ucounts *ucounts, enum ucount_type type, long v) +bool dec_rlimit_ucounts(struct ucounts *ucounts, enum rlimit_type type, long v) { struct ucounts *iter; long new = -1; /* Silence compiler warning */ for (iter = ucounts; iter; iter = iter->ns->ucounts) { - long dec = atomic_long_sub_return(v, &iter->ucount[type]); + long dec = atomic_long_sub_return(v, &iter->rlimit[type]); WARN_ON_ONCE(dec < 0); if (iter == ucounts) new = dec; @@ -294,11 +290,11 @@ bool dec_rlimit_ucounts(struct ucounts *ucounts, enum ucount_type type, long v) } static void do_dec_rlimit_put_ucounts(struct ucounts *ucounts, - struct ucounts *last, enum ucount_type type) + struct ucounts *last, enum rlimit_type type) { struct ucounts *iter, *next; for (iter = ucounts; iter != last; iter = next) { - long dec = atomic_long_sub_return(1, &iter->ucount[type]); + long dec = atomic_long_sub_return(1, &iter->rlimit[type]); WARN_ON_ONCE(dec < 0); next = iter->ns->ucounts; if (dec == 0) @@ -306,12 +302,12 @@ static void do_dec_rlimit_put_ucounts(struct ucounts *ucounts, } } -void dec_rlimit_put_ucounts(struct ucounts *ucounts, enum ucount_type type) +void dec_rlimit_put_ucounts(struct ucounts *ucounts, enum rlimit_type type) { do_dec_rlimit_put_ucounts(ucounts, NULL, type); } -long inc_rlimit_get_ucounts(struct ucounts *ucounts, enum ucount_type type) +long inc_rlimit_get_ucounts(struct ucounts *ucounts, enum rlimit_type type) { /* Caller must hold a reference to ucounts */ struct ucounts *iter; @@ -319,12 +315,12 @@ long inc_rlimit_get_ucounts(struct ucounts *ucounts, enum ucount_type type) long dec, ret = 0; for (iter = ucounts; iter; iter = iter->ns->ucounts) { - long new = atomic_long_add_return(1, &iter->ucount[type]); + long new = atomic_long_add_return(1, &iter->rlimit[type]); if (new < 0 || new > max) goto unwind; if (iter == ucounts) ret = new; - max = READ_ONCE(iter->ns->ucount_max[type]); + max = get_userns_rlimit_max(iter->ns, type); /* * Grab an extra ucount reference for the caller when * the rlimit count was previously 0. @@ -336,24 +332,24 @@ long inc_rlimit_get_ucounts(struct ucounts *ucounts, enum ucount_type type) } return ret; dec_unwind: - dec = atomic_long_sub_return(1, &iter->ucount[type]); + dec = atomic_long_sub_return(1, &iter->rlimit[type]); WARN_ON_ONCE(dec < 0); unwind: do_dec_rlimit_put_ucounts(ucounts, iter, type); return 0; } -bool is_ucounts_overlimit(struct ucounts *ucounts, enum ucount_type type, unsigned long rlimit) +bool is_rlimit_overlimit(struct ucounts *ucounts, enum rlimit_type type, unsigned long rlimit) { struct ucounts *iter; long max = rlimit; if (rlimit > LONG_MAX) max = LONG_MAX; for (iter = ucounts; iter; iter = iter->ns->ucounts) { - long val = get_ucounts_value(iter, type); + long val = get_rlimit_value(iter, type); if (val < 0 || val > max) return true; - max = READ_ONCE(iter->ns->ucount_max[type]); + max = get_userns_rlimit_max(iter->ns, type); } return false; } |