mirror of https://github.com/torvalds/linux.git
7eca961dd7
When damos_commit_quota_goals() is called for adding new DAMOS quota goals
of DAMOS_QUOTA_USER_INPUT metric, current_value fields of the new goals
should be also set as requested.
However, damos_commit_quota_goals() is not updating the field for the
case, since it is setting only metrics and target values using
damos_new_quota_goal(), and metric-optional union fields using
damos_commit_quota_goal_union(). As a result, users could see the first
current_value parameter that committed online with a new quota goal is
ignored. Users are assumed to commit the current_value for
DAMOS_QUOTA_USER_INPUT quota goals, since it is being used as a feedback.
Hence the real impact would be subtle. That said, this is obviously not
intended behavior.
Fix the issue by using damos_commit_quota_goal() which sets all quota goal
parameters, instead of damos_commit_quota_goal_union(), which sets only
the union fields.
Link: https://lkml.kernel.org/r/20251014001846.279282-1-sj@kernel.org
Fixes:
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|---|---|---|
| .. | ||
| tests | ||
| Kconfig | ||
| Makefile | ||
| core.c | ||
| lru_sort.c | ||
| modules-common.c | ||
| modules-common.h | ||
| ops-common.c | ||
| ops-common.h | ||
| paddr.c | ||
| reclaim.c | ||
| stat.c | ||
| sysfs-common.c | ||
| sysfs-common.h | ||
| sysfs-schemes.c | ||
| sysfs.c | ||
| vaddr.c | ||