library: trade a deprecated oomem field for proper one
Now that the conditional OOMEM_ENABLE has been removed
and, after reviewing current library support, it turns
out we've been using a deprecated /proc/<pid>/oom_adj.
What we should use instead is that more recent tunable
/proc/<pid>/oom_score_adj. This new field will provide
a range of -1000 thru +1000 (former was -17 thru +15).
Reference(s):
. removal of misguided OOMEM_ENABLE
commit 64238730fa
. linux, partial oom_adj revert (Nov, 2012)
commit fa0cbbf145aabbf29c6f28f8a11935c0b0fd86fc
. linux, removal oom_adj (Oct, 2012)
commit 01dc52ebdf472f77cca623ca693ca24cfc0f1bbe
Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit is contained in:
parent
0c78f4f954
commit
67bf272f5d
@ -474,12 +474,12 @@ static void supgrps_from_supgids (proc_t *p) {
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}
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}
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///////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////
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static void oomscore2proc(const char* S, proc_t *restrict P)
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static inline void oomscore2proc(const char* S, proc_t *restrict P)
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{
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{
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sscanf(S, "%d", &P->oom_score);
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sscanf(S, "%d", &P->oom_score);
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}
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}
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static void oomadj2proc(const char* S, proc_t *restrict P)
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static inline void oomadj2proc(const char* S, proc_t *restrict P)
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{
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{
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sscanf(S, "%d", &P->oom_adj);
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sscanf(S, "%d", &P->oom_adj);
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}
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}
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@ -962,7 +962,7 @@ static proc_t* simple_readproc(PROCTAB *restrict const PT, proc_t *restrict cons
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if (unlikely(flags & PROC_FILLOOM)) {
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if (unlikely(flags & PROC_FILLOOM)) {
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if (likely(file2str(path, "oom_score", &ub) != -1))
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if (likely(file2str(path, "oom_score", &ub) != -1))
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oomscore2proc(ub.buf, p);
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oomscore2proc(ub.buf, p);
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if (likely(file2str(path, "oom_adj", &ub) != -1))
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if (likely(file2str(path, "oom_score_adj", &ub) != -1))
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oomadj2proc(ub.buf, p);
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oomadj2proc(ub.buf, p);
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}
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}
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@ -1120,7 +1120,7 @@ static proc_t* simple_readtask(PROCTAB *restrict const PT, const proc_t *restric
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if (unlikely(flags & PROC_FILLOOM)) {
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if (unlikely(flags & PROC_FILLOOM)) {
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if (likely(file2str(path, "oom_score", &ub) != -1))
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if (likely(file2str(path, "oom_score", &ub) != -1))
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oomscore2proc(ub.buf, t);
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oomscore2proc(ub.buf, t);
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if (likely(file2str(path, "oom_adj", &ub) != -1))
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if (likely(file2str(path, "oom_score_adj", &ub) != -1))
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oomadj2proc(ub.buf, t);
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oomadj2proc(ub.buf, t);
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}
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}
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