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authorRoland Dreier <rdreier@cisco.com>2009-12-18 09:41:24 -0800
committerAl Viro <viro@zeniv.linux.org.uk>2009-12-22 12:27:34 -0500
commit628ff7c1d8d8466a5ad8078bd0206a130f8b8a51 (patch)
treecc7ab0c90849be38e200fc6ff6a3a09e3caf0405 /fs/eventpoll.c
parented2617585f39dd12fae38c657bba68b9779ea10d (diff)
downloadlinux-linaro-stable-628ff7c1d8d8466a5ad8078bd0206a130f8b8a51.tar.gz
anonfd: Allow making anon files read-only
It seems a couple places such as arch/ia64/kernel/perfmon.c and drivers/infiniband/core/uverbs_main.c could use anon_inode_getfile() instead of a private pseudo-fs + alloc_file(), if only there were a way to get a read-only file. So provide this by having anon_inode_getfile() create a read-only file if we pass O_RDONLY in flags. Signed-off-by: Roland Dreier <rolandd@cisco.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'fs/eventpoll.c')
-rw-r--r--fs/eventpoll.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 366c503f9657..bd056a5b4efc 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1206,7 +1206,7 @@ SYSCALL_DEFINE1(epoll_create1, int, flags)
* a file structure and a free file descriptor.
*/
error = anon_inode_getfd("[eventpoll]", &eventpoll_fops, ep,
- flags & O_CLOEXEC);
+ O_RDWR | (flags & O_CLOEXEC));
if (error < 0)
ep_free(ep);