The quilt patch titled Subject: mm/damon/sysfs: remove parameters of damon_sysfs_region_alloc() has been removed from the -mm tree. Its filename was mm-damon-sysfs-remove-parameters-of-damon_sysfs_region_alloc.patch This patch was dropped because it was merged into the mm-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: SeongJae Park <sj@xxxxxxxxxx> Subject: mm/damon/sysfs: remove parameters of damon_sysfs_region_alloc() Date: Wed, 26 Oct 2022 22:59:37 +0000 'damon_sysfs_region_alloc()' is always called with zero-filled 'struct damon_addr_range', because the start and end addresses should set by users. Remove unnecessary parameters of the function and simplify the body by using 'kzalloc()'. Link: https://lkml.kernel.org/r/20221026225943.100429-7-sj@xxxxxxxxxx Signed-off-by: SeongJae Park <sj@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/damon/sysfs.c | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) --- a/mm/damon/sysfs.c~mm-damon-sysfs-remove-parameters-of-damon_sysfs_region_alloc +++ a/mm/damon/sysfs.c @@ -1065,17 +1065,9 @@ struct damon_sysfs_region { struct damon_addr_range ar; }; -static struct damon_sysfs_region *damon_sysfs_region_alloc( - struct damon_addr_range ar) +static struct damon_sysfs_region *damon_sysfs_region_alloc(void) { - struct damon_sysfs_region *region = kmalloc(sizeof(*region), - GFP_KERNEL); - - if (!region) - return NULL; - region->kobj = (struct kobject){}; - region->ar = ar; - return region; + return kzalloc(sizeof(struct damon_sysfs_region), GFP_KERNEL); } static ssize_t start_show(struct kobject *kobj, struct kobj_attribute *attr, @@ -1184,7 +1176,7 @@ static int damon_sysfs_regions_add_dirs( regions->regions_arr = regions_arr; for (i = 0; i < nr_regions; i++) { - region = damon_sysfs_region_alloc((struct damon_addr_range){}); + region = damon_sysfs_region_alloc(); if (!region) { damon_sysfs_regions_rm_dirs(regions); return -ENOMEM; _ Patches currently in -mm which might be from sj@xxxxxxxxxx are docs-admin-guide-mm-damon-usage-describe-the-rules-of-sysfs-region-directories.patch docs-admin-guide-mm-damon-usage-fix-wrong-usage-example-of-init_regions-file.patch mm-damon-core-add-a-callback-for-scheme-target-regions-check.patch mm-damon-sysfs-schemes-implement-schemes-tried_regions-directory.patch mm-damon-sysfs-schemes-implement-scheme-region-directory.patch mm-damon-sysfs-implement-damos-tried-regions-update-command.patch mm-damon-sysfs-implement-damos-tried-regions-update-command-fix.patch mm-damon-sysfs-schemes-implement-damos-tried-regions-clear-command.patch mm-damon-sysfs-schemes-implement-damos-tried-regions-clear-command-fix.patch tools-selftets-damon-sysfs-test-tried_regions-directory-existence.patch docs-admin-guide-mm-damon-usage-document-schemes-s-tried_regions-sysfs-directory.patch docs-abi-damon-document-schemes-s-tried_regions-sysfs-directory.patch selftests-damon-test-non-context-inputs-to-rm_contexts-file.patch