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fuse: Convert fc->attr_version into atomic64_t

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This patch makes fc->attr_version of atomic64_t type, so fc->lock won't be
needed to read or modify it anymore.

Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
This commit is contained in:
Kirill Tkhai
2018-11-09 13:33:17 +03:00
committed by Miklos Szeredi
parent ebf84d0c72
commit 4510d86fbb
4 changed files with 14 additions and 26 deletions
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4
fs/fuse/inode.c
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@@ -163,7 +163,7 @@ void fuse_change_attributes_common(struct inode *inode, struct fuse_attr *attr,
struct fuse_conn *fc = get_fuse_conn(inode);
struct fuse_inode *fi = get_fuse_inode(inode);
fi->attr_version = ++fc->attr_version;
fi->attr_version = atomic64_inc_return(&fc->attr_version);
fi->i_time = attr_valid;
WRITE_ONCE(fi->inval_mask, 0);
@@ -624,7 +624,7 @@ void fuse_conn_init(struct fuse_conn *fc, struct user_namespace *user_ns)
fc->blocked = 0;
fc->initialized = 0;
fc->connected = 1;
fc->attr_version = 1;
atomic64_set(&fc->attr_version, 1);
get_random_bytes(&fc->scramble_key, sizeof(fc->scramble_key));
fc->pid_ns = get_pid_ns(task_active_pid_ns(current));
fc->user_ns = get_user_ns(user_ns);