Commit d7867712 authored Jan 29, 2022 by Trond Myklebust

NFS: Charge open/lock file contexts to kmemcg

Allow kmemcg to limit the number of open/lock file contexts, in the same
way that it limits the parent file descriptors.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

parent 3e17898a

fs/nfs/dir.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -73,7 +73,7 @@ static struct nfs_open_dir_context alloc_nfs_open_dir_context(struct inode dir
		{
		struct nfs_inode *nfsi = NFS_I(dir);
		struct nfs_open_dir_context *ctx;
		ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
		ctx = kmalloc(sizeof(*ctx), GFP_KERNEL_ACCOUNT);
		if (ctx != NULL) {
		ctx->duped = 0;
		ctx->attr_gencount = nfsi->attr_gencount;

fs/nfs/inode.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -952,7 +952,7 @@ struct nfs_lock_context nfs_get_lock_context(struct nfs_open_context ctx)
		res = __nfs_find_lock_context(ctx);
		rcu_read_unlock();
		if (res == NULL) {
		new = kmalloc(sizeof(*new), GFP_KERNEL);
		new = kmalloc(sizeof(*new), GFP_KERNEL_ACCOUNT);
		if (new == NULL)
		return ERR_PTR(-ENOMEM);
		nfs_init_lock_context(new);
		@@ -1030,7 +1030,7 @@ struct nfs_open_context alloc_nfs_open_context(struct dentry dentry,
		{
		struct nfs_open_context *ctx;

		ctx = kmalloc(sizeof(*ctx), GFP_KERNEL);
		ctx = kmalloc(sizeof(*ctx), GFP_KERNEL_ACCOUNT);
		if (!ctx)
		return ERR_PTR(-ENOMEM);
		nfs_sb_active(dentry->d_sb);