From patchwork Sat Nov 2 05:08:16 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Al Viro X-Patchwork-Id: 13859990 Received: from zeniv.linux.org.uk (zeniv.linux.org.uk [62.89.141.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7665214A0A4; Sat, 2 Nov 2024 05:08:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.89.141.173 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730524115; cv=none; b=gNPfsfRMHEh3dlu7K9lnJMIXULOn2ZCpsS9izcJBqyQC0kQREVdqo40j1pXlEb5/zig98AnpYd3MxV0HVtt2XNfymQHFaxkfyRmMEZ96xnHSnoQB/NCL9gLtX1seKLz+tPE6ikKhMQkCYs7Zsnu5WnUsZcml/H8aOHp8xfmBUIo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1730524115; c=relaxed/simple; bh=ZROOiPbuI7050Mb5nkT2JAvgRg4h/KC2SI3FrIo9sds=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; 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bh=3NYg8JSsMKy8Frd7HbHYI7Kn84hHchr6hnGoBy37xF0=; b=pJLvw6bX7xFuB+W5I6UGax6EfR NFyhqv0nXhIX6DHdnYq+buezCLNlp+wdonpe9zPzWjGojmu8f0DU9tepFX9ZRQbi/e18ALL4dbSJU 1gsJXlPUJ3Nara/Rz1aSOgPIjJOMdTr9AdAXidcv7ec/X7NAmBGSa2343XfhlL0vR/+GrU8dXXZH6 TvyvucsKyGPEOOnobWOe1RsCJnil/eKvXfU3JRn2a051XcmTsPi3GxzLKKCDyGBX7ZHeVV7D4pq5e yio7bPEyYleraV5aduTIeaeO2EwnZQLK4d8Q4RpARh7l0+4MxRBPmvy18aPF1YEZfmRPqFR7XtpDd XhIGsI1w==; Received: from viro by zeniv.linux.org.uk with local (Exim 4.98 #2 (Red Hat Linux)) id 1t76NB-0000000AHnY-2q30; Sat, 02 Nov 2024 05:08:29 +0000 From: Al Viro To: linux-fsdevel@vger.kernel.org Cc: viro@zeniv.linux.org.uk, brauner@kernel.org, cgroups@vger.kernel.org, kvm@vger.kernel.org, netdev@vger.kernel.org, torvalds@linux-foundation.org Subject: [PATCH v3 18/28] switch spufs_calls_{get,put}() to CLASS() use Date: Sat, 2 Nov 2024 05:08:16 +0000 Message-ID: <20241102050827.2451599-18-viro@zeniv.linux.org.uk> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241102050827.2451599-1-viro@zeniv.linux.org.uk> References: <20241102050219.GA2450028@ZenIV> <20241102050827.2451599-1-viro@zeniv.linux.org.uk> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Sender: Al Viro Signed-off-by: Al Viro --- arch/powerpc/platforms/cell/spu_syscalls.c | 52 +++++++--------------- 1 file changed, 17 insertions(+), 35 deletions(-) diff --git a/arch/powerpc/platforms/cell/spu_syscalls.c b/arch/powerpc/platforms/cell/spu_syscalls.c index da4fad7fc8bf..64a4c9eac6e0 100644 --- a/arch/powerpc/platforms/cell/spu_syscalls.c +++ b/arch/powerpc/platforms/cell/spu_syscalls.c @@ -36,6 +36,9 @@ static inline struct spufs_calls *spufs_calls_get(void) static inline void spufs_calls_put(struct spufs_calls *calls) { + if (!calls) + return; + BUG_ON(calls != spufs_calls); /* we don't need to rcu this, as we hold a reference to the module */ @@ -53,35 +56,30 @@ static inline void spufs_calls_put(struct spufs_calls *calls) { } #endif /* CONFIG_SPU_FS_MODULE */ +DEFINE_CLASS(spufs_calls, struct spufs_calls *, spufs_calls_put(_T), spufs_calls_get(), void) + SYSCALL_DEFINE4(spu_create, const char __user *, name, unsigned int, flags, umode_t, mode, int, neighbor_fd) { - long ret; - struct spufs_calls *calls; - - calls = spufs_calls_get(); + CLASS(spufs_calls, calls)(); if (!calls) return -ENOSYS; if (flags & SPU_CREATE_AFFINITY_SPU) { CLASS(fd, neighbor)(neighbor_fd); - ret = -EBADF; - if (!fd_empty(neighbor)) - ret = calls->create_thread(name, flags, mode, fd_file(neighbor)); - } else - ret = calls->create_thread(name, flags, mode, NULL); - - spufs_calls_put(calls); - return ret; + if (fd_empty(neighbor)) + return -EBADF; + return calls->create_thread(name, flags, mode, fd_file(neighbor)); + } else { + return calls->create_thread(name, flags, mode, NULL); + } } SYSCALL_DEFINE3(spu_run,int, fd, __u32 __user *, unpc, __u32 __user *, ustatus) { long ret; struct fd arg; - struct spufs_calls *calls; - - calls = spufs_calls_get(); + CLASS(spufs_calls, calls)(); if (!calls) return -ENOSYS; @@ -91,42 +89,26 @@ SYSCALL_DEFINE3(spu_run,int, fd, __u32 __user *, unpc, __u32 __user *, ustatus) ret = calls->spu_run(fd_file(arg), unpc, ustatus); fdput(arg); } - - spufs_calls_put(calls); return ret; } #ifdef CONFIG_COREDUMP int elf_coredump_extra_notes_size(void) { - struct spufs_calls *calls; - int ret; - - calls = spufs_calls_get(); + CLASS(spufs_calls, calls)(); if (!calls) return 0; - ret = calls->coredump_extra_notes_size(); - - spufs_calls_put(calls); - - return ret; + return calls->coredump_extra_notes_size(); } int elf_coredump_extra_notes_write(struct coredump_params *cprm) { - struct spufs_calls *calls; - int ret; - - calls = spufs_calls_get(); + CLASS(spufs_calls, calls)(); if (!calls) return 0; - ret = calls->coredump_extra_notes_write(cprm); - - spufs_calls_put(calls); - - return ret; + return calls->coredump_extra_notes_write(cprm); } #endif