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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


  parent reply	other threads:[~2015-03-13  1:41 UTC|newest]

Thread overview: 54+ 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 ` [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 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 22:45           ` Andy Lutomirski
2015-03-13 23:01             ` josh
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  1:41 ` [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 22:20         ` josh
2015-03-13 22:28           ` Andy Lutomirski
2015-03-13 22:34             ` josh
2015-03-13 22:38               ` Andy Lutomirski
2015-03-14 14:14       ` 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 22:26                 ` Thiago Macieira
2015-03-14 19:01             ` Josh Triplett
2015-03-14 19:18               ` Oleg Nesterov
2015-03-14 19:47                 ` Oleg Nesterov
2015-03-14 20:14                   ` Josh Triplett
2015-03-14 20:30                     ` Oleg Nesterov
2015-03-14 22:14                       ` 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 19:15     ` Josh Triplett
2015-03-14 19:24       ` Oleg Nesterov
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 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 21:51         ` Andy Lutomirski
2015-03-14  1:11           ` Thiago Macieira
2015-03-14 19:03             ` Thiago Macieira
2015-03-14 19:29               ` Josh Triplett
2015-03-15 10:18                 ` David Drysdale
2015-03-15 10:59                   ` Josh Triplett
2015-03-15  8:55     ` David Drysdale

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