diff options
Diffstat (limited to 'fs/pipe.c')
| -rw-r--r-- | fs/pipe.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/fs/pipe.c b/fs/pipe.c index eaa3c8d36291..83a292464de7 100644 --- a/fs/pipe.c +++ b/fs/pipe.c @@ -629,24 +629,30 @@ struct pipe_inode_info *alloc_pipe_info(void) if (pipe == NULL) goto out_free_uid; - if (!too_many_pipe_buffers_hard(user)) { - if (too_many_pipe_buffers_soft(user)) - pipe_bufs = 1; - pipe->bufs = kcalloc(pipe_bufs, - sizeof(struct pipe_buffer), - GFP_KERNEL_ACCOUNT); + account_pipe_buffers(user, 0, pipe_bufs); + + if (too_many_pipe_buffers_soft(user)) { + account_pipe_buffers(user, pipe_bufs, 1); + pipe_bufs = 1; } + if (too_many_pipe_buffers_hard(user)) + goto out_revert_acct; + + pipe->bufs = kcalloc(pipe_bufs, sizeof(struct pipe_buffer), + GFP_KERNEL_ACCOUNT); + if (pipe->bufs) { init_waitqueue_head(&pipe->wait); pipe->r_counter = pipe->w_counter = 1; pipe->buffers = pipe_bufs; pipe->user = user; - account_pipe_buffers(user, 0, pipe_bufs); mutex_init(&pipe->mutex); return pipe; } +out_revert_acct: + account_pipe_buffers(user, pipe_bufs, 0); kfree(pipe); out_free_uid: free_uid(user); |