From: Josh Triplett <josh@joshtriplett.org> To: Al Viro <viro@zeniv.linux.org.uk>, Andrew Morton <akpm@linux-foundation.org>, Andy Lutomirski <luto@amacapital.net>, Ingo Molnar <mingo@redhat.com>, Kees Cook <keescook@chromium.org>, Oleg Nesterov <oleg@redhat.com>, "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>, "H. Peter Anvin" <hpa@zytor.com>, Rik van Riel <riel@redhat.com>, Thomas Gleixner <tglx@linutronix.de>, Thiago Macieira <thiago.macieira@intel.com>, Michael Kerrisk <mtk.manpages@gmail.com>, linux-kernel@vger.kernel.org, linux-api@vger.kernel.org, linux-fsdevel@vger.kernel.org, x86@kernel.org Subject: [PATCH 5/6] fs: Make alloc_fd non-private Date: Thu, 12 Mar 2015 18:40:54 -0700 [thread overview] Message-ID: <5083dceeba618b421c25042c6343080f09f919f8.1426180120.git.josh@joshtriplett.org> (raw) In-Reply-To: <cover.1426180120.git.josh@joshtriplett.org> This allows callers to allocate a file descriptor with a defined minimum value, without directly calling the lower-level __alloc_fd. Signed-off-by: Josh Triplett <josh@joshtriplett.org> Signed-off-by: Thiago Macieira <thiago.macieira@intel.com> --- fs/file.c | 2 +- include/linux/file.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/file.c b/fs/file.c index ee738ea..583ba46 100644 --- a/fs/file.c +++ b/fs/file.c @@ -500,7 +500,7 @@ out: return error; } -static int alloc_fd(unsigned start, unsigned flags) +int alloc_fd(unsigned start, unsigned flags) { return __alloc_fd(current->files, start, rlimit(RLIMIT_NOFILE), flags); } diff --git a/include/linux/file.h b/include/linux/file.h index f87d308..d49f3bd 100644 --- a/include/linux/file.h +++ b/include/linux/file.h @@ -65,6 +65,7 @@ extern int replace_fd(unsigned fd, struct file *file, unsigned flags); extern void set_close_on_exec(unsigned int fd, int flag); extern bool get_close_on_exec(unsigned int fd); extern void put_filp(struct file *); +extern int alloc_fd(unsigned start, unsigned flags); extern int get_unused_fd_flags(unsigned flags); extern void put_unused_fd(unsigned int fd); -- 2.1.4
WARNING: multiple messages have this Message-ID (diff)
From: Josh Triplett <josh-iaAMLnmF4UmaiuxdJuQwMA@public.gmane.org> To: Al Viro <viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org>, Andrew Morton <akpm-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>, Andy Lutomirski <luto-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org>, Ingo Molnar <mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Kees Cook <keescook-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>, Oleg Nesterov <oleg-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, "Paul E. McKenney" <paulmck-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>, "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>, Rik van Riel <riel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>, Thomas Gleixner <tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>, Thiago Macieira <thiago.macieira-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>, Michael Kerrisk <mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, x86-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org Subject: [PATCH 5/6] fs: Make alloc_fd non-private Date: Thu, 12 Mar 2015 18:40:54 -0700 [thread overview] Message-ID: <5083dceeba618b421c25042c6343080f09f919f8.1426180120.git.josh@joshtriplett.org> (raw) In-Reply-To: <cover.1426180120.git.josh-iaAMLnmF4UmaiuxdJuQwMA@public.gmane.org> This allows callers to allocate a file descriptor with a defined minimum value, without directly calling the lower-level __alloc_fd. Signed-off-by: Josh Triplett <josh-iaAMLnmF4UmaiuxdJuQwMA@public.gmane.org> Signed-off-by: Thiago Macieira <thiago.macieira-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org> --- fs/file.c | 2 +- include/linux/file.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/file.c b/fs/file.c index ee738ea..583ba46 100644 --- a/fs/file.c +++ b/fs/file.c @@ -500,7 +500,7 @@ out: return error; } -static int alloc_fd(unsigned start, unsigned flags) +int alloc_fd(unsigned start, unsigned flags) { return __alloc_fd(current->files, start, rlimit(RLIMIT_NOFILE), flags); } diff --git a/include/linux/file.h b/include/linux/file.h index f87d308..d49f3bd 100644 --- a/include/linux/file.h +++ b/include/linux/file.h @@ -65,6 +65,7 @@ extern int replace_fd(unsigned fd, struct file *file, unsigned flags); extern void set_close_on_exec(unsigned int fd, int flag); extern bool get_close_on_exec(unsigned int fd); extern void put_filp(struct file *); +extern int alloc_fd(unsigned start, unsigned flags); extern int get_unused_fd_flags(unsigned flags); extern void put_unused_fd(unsigned int fd); -- 2.1.4
next prev parent reply other threads:[~2015-03-13 1:41 UTC|newest] Thread overview: 83+ messages / expand[flat|nested] mbox.gz Atom feed top 2015-03-13 1:40 [PATCH 0/6] CLONE_FD: Task exit notification via file descriptor Josh Triplett 2015-03-13 1:40 ` Josh Triplett 2015-03-13 1:40 ` [PATCH 1/6] clone: Support passing tls argument via C rather than pt_regs magic Josh Triplett 2015-03-13 1:40 ` [PATCH 2/6] x86: Opt into HAVE_COPY_THREAD_TLS, for both 32-bit and 64-bit Josh Triplett 2015-03-13 1:40 ` Josh Triplett 2015-03-13 22:01 ` Andy Lutomirski 2015-03-13 22:01 ` Andy Lutomirski 2015-03-13 22:31 ` josh 2015-03-13 22:38 ` Andy Lutomirski 2015-03-13 22:43 ` josh 2015-03-13 22:43 ` josh-iaAMLnmF4UmaiuxdJuQwMA 2015-03-13 22:45 ` Andy Lutomirski 2015-03-13 22:45 ` Andy Lutomirski 2015-03-13 23:01 ` josh 2015-03-13 23:01 ` josh-iaAMLnmF4UmaiuxdJuQwMA 2015-03-13 1:40 ` [PATCH 3/6] Introduce a new clone4 syscall with more flag bits and extensible arguments Josh Triplett 2015-03-13 1:40 ` [PATCH 4/6] signal: Factor out a helper function to process task_struct exit_code Josh Triplett 2015-03-13 1:40 ` Josh Triplett [this message] 2015-03-13 1:40 ` [PATCH 5/6] fs: Make alloc_fd non-private Josh Triplett 2015-03-13 1:41 ` [PATCH 6/6] clone4: Introduce new CLONE_FD flag to get task exit notification via fd Josh Triplett 2015-03-13 16:21 ` Oleg Nesterov 2015-03-13 19:57 ` josh 2015-03-13 21:34 ` Andy Lutomirski 2015-03-13 21:34 ` Andy Lutomirski 2015-03-13 22:20 ` josh 2015-03-13 22:28 ` Andy Lutomirski 2015-03-13 22:28 ` Andy Lutomirski 2015-03-13 22:34 ` josh 2015-03-13 22:34 ` josh-iaAMLnmF4UmaiuxdJuQwMA 2015-03-13 22:38 ` Andy Lutomirski 2015-03-14 14:14 ` Oleg Nesterov 2015-03-14 14:14 ` Oleg Nesterov 2015-03-14 14:32 ` Oleg Nesterov 2015-03-14 14:32 ` Oleg Nesterov 2015-03-14 18:38 ` Thiago Macieira 2015-03-14 18:54 ` Oleg Nesterov 2015-03-14 22:03 ` Josh Triplett 2015-03-14 22:03 ` Josh Triplett 2015-03-14 22:26 ` Thiago Macieira 2015-03-14 19:01 ` Josh Triplett 2015-03-14 19:18 ` Oleg Nesterov 2015-03-14 19:18 ` Oleg Nesterov 2015-03-14 19:47 ` Oleg Nesterov 2015-03-14 19:47 ` Oleg Nesterov 2015-03-14 20:14 ` Josh Triplett 2015-03-14 20:14 ` Josh Triplett 2015-03-14 20:30 ` Oleg Nesterov 2015-03-14 22:14 ` Josh Triplett 2015-03-14 22:14 ` Josh Triplett 2015-03-14 20:03 ` Josh Triplett 2015-03-14 20:03 ` Josh Triplett 2015-03-14 20:20 ` Oleg Nesterov 2015-03-14 22:09 ` Josh Triplett 2015-03-14 14:35 ` Oleg Nesterov 2015-03-14 14:35 ` Oleg Nesterov 2015-03-14 19:15 ` Josh Triplett 2015-03-14 19:15 ` Josh Triplett 2015-03-14 19:24 ` Oleg Nesterov 2015-03-14 19:48 ` Josh Triplett 2015-03-14 19:48 ` Josh Triplett 2015-03-13 1:41 ` [PATCH] clone4.2: New manpage documenting clone4(2) Josh Triplett 2015-03-13 2:07 ` [PATCH 0/6] CLONE_FD: Task exit notification via file descriptor Thiago Macieira 2015-03-13 2:07 ` Thiago Macieira 2015-03-13 16:05 ` David Drysdale 2015-03-13 16:05 ` David Drysdale 2015-03-13 19:42 ` Josh Triplett 2015-03-13 21:16 ` Thiago Macieira 2015-03-13 21:44 ` josh 2015-03-13 21:33 ` Andy Lutomirski 2015-03-13 21:45 ` josh 2015-03-13 21:45 ` josh-iaAMLnmF4UmaiuxdJuQwMA 2015-03-13 21:51 ` Andy Lutomirski 2015-03-13 21:51 ` Andy Lutomirski 2015-03-14 1:11 ` Thiago Macieira 2015-03-14 1:11 ` Thiago Macieira 2015-03-14 19:03 ` Thiago Macieira 2015-03-14 19:29 ` Josh Triplett 2015-03-14 19:29 ` Josh Triplett 2015-03-15 10:18 ` David Drysdale 2015-03-15 10:18 ` David Drysdale 2015-03-15 10:59 ` Josh Triplett 2015-03-15 8:55 ` David Drysdale 2015-03-15 8:55 ` David Drysdale
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