mm: use sysfs_emit for struct kobject * uses

Patch series "mm: Convert sysfs sprintf family to sysfs_emit", v2.

Use the new sysfs_emit family and not the sprintf family.

This patch (of 5):

Use the sysfs_emit function instead of the sprintf family.

Done with cocci script as in commit 3c6bff3cf988 ("RDMA: Convert sysfs
kobject * show functions to use sysfs_emit()")

Link: https://lkml.kernel.org/r/cover.1605376435.git.joe@perches.com
Link: https://lkml.kernel.org/r/9c249215bad6df616ba0410ad980042694970c1b.1605376435.git.joe@perches.com
Signed-off-by: Joe Perches <joe@perches.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index c11c800..0931ee1 100644 (file)
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -164,11 +164,11 @@ static ssize_t enabled_show(struct kobject *kobj,
                            struct kobj_attribute *attr, char *buf)
 {
        if (test_bit(TRANSPARENT_HUGEPAGE_FLAG, &transparent_hugepage_flags))
-               return sprintf(buf, "[always] madvise never\n");
+               return sysfs_emit(buf, "[always] madvise never\n");
        else if (test_bit(TRANSPARENT_HUGEPAGE_REQ_MADV_FLAG, &transparent_hugepage_flags))
-               return sprintf(buf, "always [madvise] never\n");
+               return sysfs_emit(buf, "always [madvise] never\n");
        else
-               return sprintf(buf, "always madvise [never]\n");
+               return sysfs_emit(buf, "always madvise [never]\n");
 }
 
 static ssize_t enabled_store(struct kobject *kobj,
@@ -233,14 +233,18 @@ static ssize_t defrag_show(struct kobject *kobj,
                           struct kobj_attribute *attr, char *buf)
 {
        if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_DIRECT_FLAG, &transparent_hugepage_flags))
-               return sprintf(buf, "[always] defer defer+madvise madvise never\n");
+               return sysfs_emit(buf,
+                                 "[always] defer defer+madvise madvise never\n");
        if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_KSWAPD_FLAG, &transparent_hugepage_flags))
-               return sprintf(buf, "always [defer] defer+madvise madvise never\n");
+               return sysfs_emit(buf,
+                                 "always [defer] defer+madvise madvise never\n");
        if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_KSWAPD_OR_MADV_FLAG, &transparent_hugepage_flags))
-               return sprintf(buf, "always defer [defer+madvise] madvise never\n");
+               return sysfs_emit(buf,
+                                 "always defer [defer+madvise] madvise never\n");
        if (test_bit(TRANSPARENT_HUGEPAGE_DEFRAG_REQ_MADV_FLAG, &transparent_hugepage_flags))
-               return sprintf(buf, "always defer defer+madvise [madvise] never\n");
-       return sprintf(buf, "always defer defer+madvise madvise [never]\n");
+               return sysfs_emit(buf,
+                                 "always defer defer+madvise [madvise] never\n");
+       return sysfs_emit(buf, "always defer defer+madvise madvise [never]\n");
 }
 
 static ssize_t defrag_store(struct kobject *kobj,
@@ -281,10 +285,10 @@ static struct kobj_attribute defrag_attr =
        __ATTR(defrag, 0644, defrag_show, defrag_store);
 
 static ssize_t use_zero_page_show(struct kobject *kobj,
-               struct kobj_attribute *attr, char *buf)
+                                 struct kobj_attribute *attr, char *buf)
 {
        return single_hugepage_flag_show(kobj, attr, buf,
-                               TRANSPARENT_HUGEPAGE_USE_ZERO_PAGE_FLAG);
+                                        TRANSPARENT_HUGEPAGE_USE_ZERO_PAGE_FLAG);
 }
 static ssize_t use_zero_page_store(struct kobject *kobj,
                struct kobj_attribute *attr, const char *buf, size_t count)
@@ -296,9 +300,9 @@ static struct kobj_attribute use_zero_page_attr =
        __ATTR(use_zero_page, 0644, use_zero_page_show, use_zero_page_store);
 
 static ssize_t hpage_pmd_size_show(struct kobject *kobj,
-               struct kobj_attribute *attr, char *buf)
+                                  struct kobj_attribute *attr, char *buf)
 {
-       return sprintf(buf, "%lu\n", HPAGE_PMD_SIZE);
+       return sysfs_emit(buf, "%lu\n", HPAGE_PMD_SIZE);
 }
 static struct kobj_attribute hpage_pmd_size_attr =
        __ATTR_RO(hpage_pmd_size);

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index e2f7bc8..cbf32d2 100644 (file)
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2760,7 +2760,7 @@ static ssize_t nr_hugepages_show_common(struct kobject *kobj,
        else
                nr_huge_pages = h->nr_huge_pages_node[nid];
 
-       return sprintf(buf, "%lu\n", nr_huge_pages);
+       return sysfs_emit(buf, "%lu\n", nr_huge_pages);
 }
 
 static ssize_t __nr_hugepages_store_common(bool obey_mempolicy,
@@ -2833,7 +2833,8 @@ HSTATE_ATTR(nr_hugepages);
  * huge page alloc/free.
  */
 static ssize_t nr_hugepages_mempolicy_show(struct kobject *kobj,
-                                      struct kobj_attribute *attr, char *buf)
+                                          struct kobj_attribute *attr,
+                                          char *buf)
 {
        return nr_hugepages_show_common(kobj, attr, buf);
 }
@@ -2851,7 +2852,7 @@ static ssize_t nr_overcommit_hugepages_show(struct kobject *kobj,
                                        struct kobj_attribute *attr, char *buf)
 {
        struct hstate *h = kobj_to_hstate(kobj, NULL);
-       return sprintf(buf, "%lu\n", h->nr_overcommit_huge_pages);
+       return sysfs_emit(buf, "%lu\n", h->nr_overcommit_huge_pages);
 }
 
 static ssize_t nr_overcommit_hugepages_store(struct kobject *kobj,
@@ -2889,7 +2890,7 @@ static ssize_t free_hugepages_show(struct kobject *kobj,
        else
                free_huge_pages = h->free_huge_pages_node[nid];
 
-       return sprintf(buf, "%lu\n", free_huge_pages);
+       return sysfs_emit(buf, "%lu\n", free_huge_pages);
 }
 HSTATE_ATTR_RO(free_hugepages);
 
@@ -2897,7 +2898,7 @@ static ssize_t resv_hugepages_show(struct kobject *kobj,
                                        struct kobj_attribute *attr, char *buf)
 {
        struct hstate *h = kobj_to_hstate(kobj, NULL);
-       return sprintf(buf, "%lu\n", h->resv_huge_pages);
+       return sysfs_emit(buf, "%lu\n", h->resv_huge_pages);
 }
 HSTATE_ATTR_RO(resv_hugepages);
 
@@ -2914,7 +2915,7 @@ static ssize_t surplus_hugepages_show(struct kobject *kobj,
        else
                surplus_huge_pages = h->surplus_huge_pages_node[nid];
 
-       return sprintf(buf, "%lu\n", surplus_huge_pages);
+       return sysfs_emit(buf, "%lu\n", surplus_huge_pages);
 }
 HSTATE_ATTR_RO(surplus_hugepages);
 

diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 2cc78a5..ec92ae7 100644 (file)
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -126,7 +126,7 @@ static ssize_t scan_sleep_millisecs_show(struct kobject *kobj,
                                         struct kobj_attribute *attr,
                                         char *buf)
 {
-       return sprintf(buf, "%u\n", khugepaged_scan_sleep_millisecs);
+       return sysfs_emit(buf, "%u\n", khugepaged_scan_sleep_millisecs);
 }
 
 static ssize_t scan_sleep_millisecs_store(struct kobject *kobj,
@@ -154,7 +154,7 @@ static ssize_t alloc_sleep_millisecs_show(struct kobject *kobj,
                                          struct kobj_attribute *attr,
                                          char *buf)
 {
-       return sprintf(buf, "%u\n", khugepaged_alloc_sleep_millisecs);
+       return sysfs_emit(buf, "%u\n", khugepaged_alloc_sleep_millisecs);
 }
 
 static ssize_t alloc_sleep_millisecs_store(struct kobject *kobj,
@@ -182,7 +182,7 @@ static ssize_t pages_to_scan_show(struct kobject *kobj,
                                  struct kobj_attribute *attr,
                                  char *buf)
 {
-       return sprintf(buf, "%u\n", khugepaged_pages_to_scan);
+       return sysfs_emit(buf, "%u\n", khugepaged_pages_to_scan);
 }
 static ssize_t pages_to_scan_store(struct kobject *kobj,
                                   struct kobj_attribute *attr,
@@ -207,7 +207,7 @@ static ssize_t pages_collapsed_show(struct kobject *kobj,
                                    struct kobj_attribute *attr,
                                    char *buf)
 {
-       return sprintf(buf, "%u\n", khugepaged_pages_collapsed);
+       return sysfs_emit(buf, "%u\n", khugepaged_pages_collapsed);
 }
 static struct kobj_attribute pages_collapsed_attr =
        __ATTR_RO(pages_collapsed);
@@ -216,7 +216,7 @@ static ssize_t full_scans_show(struct kobject *kobj,
                               struct kobj_attribute *attr,
                               char *buf)
 {
-       return sprintf(buf, "%u\n", khugepaged_full_scans);
+       return sysfs_emit(buf, "%u\n", khugepaged_full_scans);
 }
 static struct kobj_attribute full_scans_attr =
        __ATTR_RO(full_scans);
@@ -225,7 +225,7 @@ static ssize_t khugepaged_defrag_show(struct kobject *kobj,
                                      struct kobj_attribute *attr, char *buf)
 {
        return single_hugepage_flag_show(kobj, attr, buf,
-                               TRANSPARENT_HUGEPAGE_DEFRAG_KHUGEPAGED_FLAG);
+                                        TRANSPARENT_HUGEPAGE_DEFRAG_KHUGEPAGED_FLAG);
 }
 static ssize_t khugepaged_defrag_store(struct kobject *kobj,
                                       struct kobj_attribute *attr,
@@ -250,7 +250,7 @@ static ssize_t khugepaged_max_ptes_none_show(struct kobject *kobj,
                                             struct kobj_attribute *attr,
                                             char *buf)
 {
-       return sprintf(buf, "%u\n", khugepaged_max_ptes_none);
+       return sysfs_emit(buf, "%u\n", khugepaged_max_ptes_none);
 }
 static ssize_t khugepaged_max_ptes_none_store(struct kobject *kobj,
                                              struct kobj_attribute *attr,
@@ -275,7 +275,7 @@ static ssize_t khugepaged_max_ptes_swap_show(struct kobject *kobj,
                                             struct kobj_attribute *attr,
                                             char *buf)
 {
-       return sprintf(buf, "%u\n", khugepaged_max_ptes_swap);
+       return sysfs_emit(buf, "%u\n", khugepaged_max_ptes_swap);
 }
 
 static ssize_t khugepaged_max_ptes_swap_store(struct kobject *kobj,
@@ -299,10 +299,10 @@ static struct kobj_attribute khugepaged_max_ptes_swap_attr =
               khugepaged_max_ptes_swap_store);
 
 static ssize_t khugepaged_max_ptes_shared_show(struct kobject *kobj,
-                                            struct kobj_attribute *attr,
-                                            char *buf)
+                                              struct kobj_attribute *attr,
+                                              char *buf)
 {
-       return sprintf(buf, "%u\n", khugepaged_max_ptes_shared);
+       return sysfs_emit(buf, "%u\n", khugepaged_max_ptes_shared);
 }
 
 static ssize_t khugepaged_max_ptes_shared_store(struct kobject *kobj,

diff --git a/mm/ksm.c b/mm/ksm.c
index 0960750..4f950c7 100644 (file)
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -2833,7 +2833,7 @@ static void wait_while_offlining(void)
 static ssize_t sleep_millisecs_show(struct kobject *kobj,
                                    struct kobj_attribute *attr, char *buf)
 {
-       return sprintf(buf, "%u\n", ksm_thread_sleep_millisecs);
+       return sysfs_emit(buf, "%u\n", ksm_thread_sleep_millisecs);
 }
 
 static ssize_t sleep_millisecs_store(struct kobject *kobj,
@@ -2857,7 +2857,7 @@ KSM_ATTR(sleep_millisecs);
 static ssize_t pages_to_scan_show(struct kobject *kobj,
                                  struct kobj_attribute *attr, char *buf)
 {
-       return sprintf(buf, "%u\n", ksm_thread_pages_to_scan);
+       return sysfs_emit(buf, "%u\n", ksm_thread_pages_to_scan);
 }
 
 static ssize_t pages_to_scan_store(struct kobject *kobj,
@@ -2880,7 +2880,7 @@ KSM_ATTR(pages_to_scan);
 static ssize_t run_show(struct kobject *kobj, struct kobj_attribute *attr,
                        char *buf)
 {
-       return sprintf(buf, "%lu\n", ksm_run);
+       return sysfs_emit(buf, "%lu\n", ksm_run);
 }
 
 static ssize_t run_store(struct kobject *kobj, struct kobj_attribute *attr,
@@ -2927,9 +2927,9 @@ KSM_ATTR(run);
 
 #ifdef CONFIG_NUMA
 static ssize_t merge_across_nodes_show(struct kobject *kobj,
-                               struct kobj_attribute *attr, char *buf)
+                                      struct kobj_attribute *attr, char *buf)
 {
-       return sprintf(buf, "%u\n", ksm_merge_across_nodes);
+       return sysfs_emit(buf, "%u\n", ksm_merge_across_nodes);
 }
 
 static ssize_t merge_across_nodes_store(struct kobject *kobj,
@@ -2984,9 +2984,9 @@ KSM_ATTR(merge_across_nodes);
 #endif
 
 static ssize_t use_zero_pages_show(struct kobject *kobj,
-                               struct kobj_attribute *attr, char *buf)
+                                  struct kobj_attribute *attr, char *buf)
 {
-       return sprintf(buf, "%u\n", ksm_use_zero_pages);
+       return sysfs_emit(buf, "%u\n", ksm_use_zero_pages);
 }
 static ssize_t use_zero_pages_store(struct kobject *kobj,
                                   struct kobj_attribute *attr,
@@ -3008,7 +3008,7 @@ KSM_ATTR(use_zero_pages);
 static ssize_t max_page_sharing_show(struct kobject *kobj,
                                     struct kobj_attribute *attr, char *buf)
 {
-       return sprintf(buf, "%u\n", ksm_max_page_sharing);
+       return sysfs_emit(buf, "%u\n", ksm_max_page_sharing);
 }
 
 static ssize_t max_page_sharing_store(struct kobject *kobj,
@@ -3049,21 +3049,21 @@ KSM_ATTR(max_page_sharing);
 static ssize_t pages_shared_show(struct kobject *kobj,
                                 struct kobj_attribute *attr, char *buf)
 {
-       return sprintf(buf, "%lu\n", ksm_pages_shared);
+       return sysfs_emit(buf, "%lu\n", ksm_pages_shared);
 }
 KSM_ATTR_RO(pages_shared);
 
 static ssize_t pages_sharing_show(struct kobject *kobj,
                                  struct kobj_attribute *attr, char *buf)
 {
-       return sprintf(buf, "%lu\n", ksm_pages_sharing);
+       return sysfs_emit(buf, "%lu\n", ksm_pages_sharing);
 }
 KSM_ATTR_RO(pages_sharing);
 
 static ssize_t pages_unshared_show(struct kobject *kobj,
                                   struct kobj_attribute *attr, char *buf)
 {
-       return sprintf(buf, "%lu\n", ksm_pages_unshared);
+       return sysfs_emit(buf, "%lu\n", ksm_pages_unshared);
 }
 KSM_ATTR_RO(pages_unshared);
 
@@ -3080,21 +3080,21 @@ static ssize_t pages_volatile_show(struct kobject *kobj,
         */
        if (ksm_pages_volatile < 0)
                ksm_pages_volatile = 0;
-       return sprintf(buf, "%ld\n", ksm_pages_volatile);
+       return sysfs_emit(buf, "%ld\n", ksm_pages_volatile);
 }
 KSM_ATTR_RO(pages_volatile);
 
 static ssize_t stable_node_dups_show(struct kobject *kobj,
                                     struct kobj_attribute *attr, char *buf)
 {
-       return sprintf(buf, "%lu\n", ksm_stable_node_dups);
+       return sysfs_emit(buf, "%lu\n", ksm_stable_node_dups);
 }
 KSM_ATTR_RO(stable_node_dups);
 
 static ssize_t stable_node_chains_show(struct kobject *kobj,
                                       struct kobj_attribute *attr, char *buf)
 {
-       return sprintf(buf, "%lu\n", ksm_stable_node_chains);
+       return sysfs_emit(buf, "%lu\n", ksm_stable_node_chains);
 }
 KSM_ATTR_RO(stable_node_chains);
 
@@ -3103,7 +3103,7 @@ stable_node_chains_prune_millisecs_show(struct kobject *kobj,
                                        struct kobj_attribute *attr,
                                        char *buf)
 {
-       return sprintf(buf, "%u\n", ksm_stable_node_chains_prune_millisecs);
+       return sysfs_emit(buf, "%u\n", ksm_stable_node_chains_prune_millisecs);
 }
 
 static ssize_t
@@ -3127,7 +3127,7 @@ KSM_ATTR(stable_node_chains_prune_millisecs);
 static ssize_t full_scans_show(struct kobject *kobj,
                               struct kobj_attribute *attr, char *buf)
 {
-       return sprintf(buf, "%lu\n", ksm_scan.seqnr);
+       return sysfs_emit(buf, "%lu\n", ksm_scan.seqnr);
 }
 KSM_ATTR_RO(full_scans);
 

diff --git a/mm/swap_state.c b/mm/swap_state.c
index cf7b322..751c1ef 100644 (file)
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -902,7 +902,8 @@ struct page *swapin_readahead(swp_entry_t entry, gfp_t gfp_mask,
 static ssize_t vma_ra_enabled_show(struct kobject *kobj,
                                     struct kobj_attribute *attr, char *buf)
 {
-       return sprintf(buf, "%s\n", enable_vma_readahead ? "true" : "false");
+       return sysfs_emit(buf, "%s\n",
+                         enable_vma_readahead ? "true" : "false");
 }
 static ssize_t vma_ra_enabled_store(struct kobject *kobj,
                                      struct kobj_attribute *attr,