The patch titled
Subject: seq_file: account everything to kmemcg
has been added to the -mm tree. Its filename is
seq_file-account-everything.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/seq_file-account-everything.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/seq_file-account-everything.patch
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Subject: seq_file: account everything to kmemcg
All it takes to open a file and read 1 byte from it.
seq_file will be allocated along with any private allocations,
and more importantly seq file buffer which is 1 page by default.
Link: http://lkml.kernel.org/r/20180310085252.GB17121@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Glauber Costa <glommer@xxxxxxxxx>
Cc: Vladimir Davydov <vdavydov.dev@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/seq_file.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff -puN fs/seq_file.c~seq_file-account-everything fs/seq_file.c
--- a/fs/seq_file.c~seq_file-account-everything
+++ a/fs/seq_file.c
@@ -29,7 +29,7 @@ static void seq_set_overflow(struct seq_
static void *seq_buf_alloc(unsigned long size)
{
- return kvmalloc(size, GFP_KERNEL);
+ return kvmalloc(size, GFP_KERNEL_ACCOUNT);
}
/**
@@ -566,7 +566,7 @@ static void single_stop(struct seq_file
int single_open(struct file *file, int (*show)(struct seq_file *, void *),
void *data)
{
- struct seq_operations *op = kmalloc(sizeof(*op), GFP_KERNEL);
+ struct seq_operations *op = kmalloc(sizeof(*op), GFP_KERNEL_ACCOUNT);
int res = -ENOMEM;
if (op) {
@@ -628,7 +628,7 @@ void *__seq_open_private(struct file *f,
void *private;
struct seq_file *seq;
- private = kzalloc(psize, GFP_KERNEL);
+ private = kzalloc(psize, GFP_KERNEL_ACCOUNT);
if (private == NULL)
goto out;
@@ -1112,5 +1112,5 @@ EXPORT_SYMBOL(seq_hlist_next_percpu);
void __init seq_file_init(void)
{
- seq_file_cache = KMEM_CACHE(seq_file, SLAB_PANIC);
+ seq_file_cache = KMEM_CACHE(seq_file, SLAB_ACCOUNT|SLAB_PANIC);
}
_
Patches currently in -mm which might be from adobriyan@xxxxxxxxx are
slab-mark-kmalloc-machinery-as-__ro_after_init.patch
slab-fixup-calculate_alignment-argument-type.patch
slab-make-kmalloc_index-return-unsigned-int.patch
slab-make-kmalloc_size-return-unsigned-int.patch
slab-make-create_kmalloc_cache-work-with-32-bit-sizes.patch
slab-make-create_boot_cache-work-with-32-bit-sizes.patch
slab-make-kmem_cache_create-work-with-32-bit-sizes.patch
slab-make-size_index-array-u8.patch
slab-make-size_index_elem-unsigned-int.patch
slub-make-remote_node_defrag_ratio-unsigned-int.patch
slub-make-max_attr_size-unsigned-int.patch
slub-make-red_left_pad-unsigned-int.patch
slub-make-reserved-unsigned-int.patch
slub-make-align-unsigned-int.patch
slub-make-inuse-unsigned-int.patch
slub-make-cpu_partial-unsigned-int.patch
slub-make-offset-unsigned-int.patch
slub-make-object_size-unsigned-int.patch
slub-make-size-unsigned-int.patch
slab-make-kmem_cache_flags-accept-32-bit-object-size.patch
kasan-make-kasan_cache_create-work-with-32-bit-slab-cache-sizes.patch
slab-make-usercopy-region-32-bit.patch
slub-make-slab_index-return-unsigned-int.patch
slub-make-struct-kmem_cache_order_objects-x-unsigned-int.patch
slub-make-size_from_object-return-unsigned-int.patch
slab-use-32-bit-arithmetic-in-freelist_randomize.patch
proc-do-less-stuff-under-pde_unload_lock.patch
proc-move-proc-sysvipc-creation-to-where-it-belongs.patch
proc-faster-open-close-of-files-without-release-hook.patch
proc-randomize-struct-pde_opener.patch
proc-move-struct-pde_opener-to-kmem-cache.patch
proc-account-struct-pde_opener.patch
proc-check-permissions-earlier-for-proc-wchan.patch
proc-use-set_puts-at-proc-wchan.patch
proc-test-proc-self-wchan.patch
proc-test-proc-self-syscall.patch
proc-move-struct-proc_dir_entry-into-kmem-cache.patch
proc-fix-proc-map_files-lookup-some-more.patch
proc-register-filesystem-last.patch
proc-faster-proc-cmdline.patch
proc-do-mmput-asap-for-proc-map_files.patch
proc-revalidate-misc-dentries.patch
proc-test-last-field-of-proc-loadavg.patch
uts-create-struct-uts_namespace-from-kmem_cache.patch
seq_file-allocate-seq_file-from-kmem_cache.patch
seq_file-account-everything.patch
seq_file-delete-small-value-optimization.patch
--
To unsubscribe from this list: send the line "unsubscribe mm-commits" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
