netdev - [PATCH 6/8] fs/file: add get_unused_fd_and_install

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Date:	Mon,  9 Mar 2015 14:20:01 -0700
From:	Maciej Żenczykowski <zenczykowski@...il.com>
To:	Maciej Żenczykowski <maze@...gle.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>
Cc:	Theodore Ts'o <tytso@....edu>, netdev@...r.kernel.org
Subject: [PATCH 6/8] fs/file: add get_unused_fd_and_install_flags(flags, newfile) api

From: Maciej Żenczykowski <maze@...gle.com>

Signed-off-by: Maciej Żenczykowski <maze@...gle.com>
---
 fs/file.c            | 7 +++++++
 include/linux/file.h | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/fs/file.c b/fs/file.c
index 01b1e171ce0a..d3e692e99ec5 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -513,6 +513,13 @@ int get_unused_fd_flags(unsigned flags)
 }
 EXPORT_SYMBOL(get_unused_fd_flags);
 
+int get_unused_fd_and_install_flags(unsigned flags, struct file *newfile)
+{
+	return __alloc_fd(current->files, 0, rlimit(RLIMIT_NOFILE), flags,
+			  newfile);
+}
+EXPORT_SYMBOL(get_unused_fd_and_install_flags);
+
 static void __put_unused_fd(struct files_struct *files, unsigned int fd)
 {
 	struct fdtable *fdt = files_fdtable(files);
diff --git a/include/linux/file.h b/include/linux/file.h
index f87d30882a24..92b43187aa39 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -66,6 +66,8 @@ 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 get_unused_fd_flags(unsigned flags);
+extern int get_unused_fd_and_install_flags(unsigned flags,
+	struct file *newfile);
 extern void put_unused_fd(unsigned int fd);
 
 extern void fd_install(unsigned int fd, struct file *file);
-- 
2.2.0.rc0.207.ga3a616c

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