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| author | Roland Dreier <rdreier@cisco.com> | 2009-12-18 09:41:24 -0800 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2009-12-22 12:27:34 -0500 |
| commit | 628ff7c1d8d8466a5ad8078bd0206a130f8b8a51 (patch) | |
| tree | cc7ab0c90849be38e200fc6ff6a3a09e3caf0405 /fs/eventpoll.c | |
| parent | ed2617585f39dd12fae38c657bba68b9779ea10d (diff) | |
| download | lwn-628ff7c1d8d8466a5ad8078bd0206a130f8b8a51.tar.gz lwn-628ff7c1d8d8466a5ad8078bd0206a130f8b8a51.zip | |
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.c | 2 |
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); |