linux-kernel - [PATCH v3 2/2] fuse: kmemcg account fs data

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Mon, 16 Sep 2019 16:56:42 -0700
From:   Khazhismel Kumykov <khazhy@...gle.com>
To:     miklos@...redi.hu
Cc:     linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        shakeelb@...gle.com, Khazhismel Kumykov <khazhy@...gle.com>
Subject: [PATCH v3 2/2] fuse: kmemcg account fs data

account per-file, dentry, and inode data

blockdev/superblock and temporary per-request data was left alone, as
this usually isn't accounted

Signed-off-by: Khazhismel Kumykov <khazhy@...gle.com>
Reviewed-by: Shakeel Butt <shakeelb@...gle.com>
---
 fs/fuse/dir.c   | 3 ++-
 fs/fuse/file.c  | 5 +++--
 fs/fuse/inode.c | 3 ++-
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index 58557d4817e9..d572c900bb0f 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -279,7 +279,8 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags)
 #if BITS_PER_LONG < 64
 static int fuse_dentry_init(struct dentry *dentry)
 {
-	dentry->d_fsdata = kzalloc(sizeof(union fuse_dentry), GFP_KERNEL);
+	dentry->d_fsdata = kzalloc(sizeof(union fuse_dentry),
+				   GFP_KERNEL_ACCOUNT | __GFP_RECLAIMABLE);
 
 	return dentry->d_fsdata ? 0 : -ENOMEM;
 }
diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index a2ea347c4d2c..862aff3665b5 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -63,12 +63,13 @@ struct fuse_file *fuse_file_alloc(struct fuse_conn *fc)
 {
 	struct fuse_file *ff;
 
-	ff = kzalloc(sizeof(struct fuse_file), GFP_KERNEL);
+	ff = kzalloc(sizeof(struct fuse_file), GFP_KERNEL_ACCOUNT);
 	if (unlikely(!ff))
 		return NULL;
 
 	ff->fc = fc;
-	ff->release_args = kzalloc(sizeof(*ff->release_args), GFP_KERNEL);
+	ff->release_args = kzalloc(sizeof(*ff->release_args),
+				   GFP_KERNEL_ACCOUNT);
 	if (!ff->release_args) {
 		kfree(ff);
 		return NULL;
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 3d598a5bb5b5..6cb445bed89d 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -66,7 +66,8 @@ static struct file_system_type fuseblk_fs_type;
 
 struct fuse_forget_link *fuse_alloc_forget(void)
 {
-	return kzalloc(sizeof(struct fuse_forget_link), GFP_KERNEL);
+	return kzalloc(sizeof(struct fuse_forget_link),
+		       GFP_KERNEL_ACCOUNT | __GFP_RECLAIMABLE);
 }
 
 static struct inode *fuse_alloc_inode(struct super_block *sb)
-- 
2.23.0.237.gc6a4ce50a0-goog