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SeongJae Park 7d6fa31a2f mm/damon/sysfs-schemes: add timeout for update_schemes_tried_regions 
If a scheme is set to not applied to any monitoring target region for any
reasons including the target access pattern, quota, filters, or
watermarks, writing 'update_schemes_tried_regions' to 'state' DAMON sysfs
file can indefinitely hang.  Fix the case by implementing a timeout for
the operation.  The time limit is two apply intervals of each scheme.

Link: https://lkml.kernel.org/r/20231124213840.39157-1-sj@kernel.org
Fixes: 4d4e41b68299 ("mm/damon/sysfs-schemes: do not update tried regions more than one DAMON snapshot")
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-12-06 16:12:48 -08:00
..
core-test.h
mm/damon/core-test: fix memory leak in damon_new_ctx()
2023-10-04 10:32:32 -07:00
core.c
mm/damon/core: copy nr_accesses when splitting region
2023-12-06 16:12:47 -08:00
dbgfs-test.h
mm/damon/dbgfs-test: fix is_target_id() change
2022-03-22 15:57:12 -07:00
dbgfs.c
mm/damon/core: implement scheme-specific apply interval
2023-10-04 10:32:31 -07:00
Kconfig
mm/damon/sysfs-test: add a unit test for damon_sysfs_set_targets()
2023-10-25 16:47:15 -07:00
lru_sort.c
mm/damon/lru_sort: avoid divide-by-zero in hot threshold calculation
2023-10-25 16:47:15 -07:00
Makefile
mm/damon/modules: deduplicate init steps for DAMON context setup
2022-11-30 15:01:26 -08:00
modules-common.c
mm/damon/modules: deduplicate init steps for DAMON context setup
2022-11-30 15:01:26 -08:00
modules-common.h
mm/damon/modules: deduplicate init steps for DAMON context setup
2022-11-30 15:01:26 -08:00
ops-common.c
mm/damon/ops-common: avoid divide-by-zero during region hotness calculation
2023-10-25 16:47:15 -07:00
ops-common.h
mm/damon/ops-common: atomically test and clear young on ptes and pmds
2023-06-09 16:25:55 -07:00
paddr.c
mm/damon/core: use pseudo-moving sum for nr_accesses_bp
2023-10-04 10:32:30 -07:00
reclaim.c
mm/damon/core: implement scheme-specific apply interval
2023-10-04 10:32:31 -07:00
sysfs-common.c
mm/damon/sysfs: make kobj_type structures constant
2023-02-09 16:51:45 -08:00
sysfs-common.h
mm/damon/sysfs: avoid empty scheme tried regions for large apply interval
2023-10-18 14:34:19 -07:00
sysfs-schemes.c
mm/damon/sysfs-schemes: add timeout for update_schemes_tried_regions
2023-12-06 16:12:48 -08:00
sysfs-test.h
mm/damon/sysfs-test: add a unit test for damon_sysfs_set_targets()
2023-10-25 16:47:15 -07:00
sysfs.c
mm/damon/sysfs: check error from damon_sysfs_update_target()
2023-11-15 15:30:09 -08:00
vaddr-test.h
mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()
2023-09-29 17:20:47 -07:00
vaddr.c
mm/damon/core: use pseudo-moving sum for nr_accesses_bp
2023-10-04 10:32:30 -07:00