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| author | Alexey Dobriyan <adobriyan@gmail.com> | 2018-04-11 02:34:49 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-04-11 20:28:36 +0300 |
| commit | d64d01a155f84850f7dc9795f464e3df9a5ddb10 (patch) | |
| tree | 715ed9123f38632d20e2779fd15efc95659b1638 | |
| parent | 0965232035cfa59a64d197cf8a8ee0bc407bb3e4 (diff) | |
| download | linux-d64d01a155f84850f7dc9795f464e3df9a5ddb10.tar.xz | |
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@gmail.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Glauber Costa <glommer@gmail.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/seq_file.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/seq_file.c b/fs/seq_file.c index 3cb340583074..c6c27f1f9c98 100644 --- a/fs/seq_file.c +++ b/fs/seq_file.c @@ -29,7 +29,7 @@ static void seq_set_overflow(struct seq_file *m) 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 *p, void *v) 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, const struct seq_operations *ops, 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); } |