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authorEric Biggers <ebiggers@google.com>2018-02-07 02:41:49 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2018-02-07 05:32:47 +0300
commit319e0a21bb7823abbb4818fe2724e572bbac77a2 (patch)
tree99dca1041887a3131014b99dbef9244c8affce00 /fs
parent4c2e4befb3cc9ce42d506aa537c9ab504723e98c (diff)
downloadlinux-319e0a21bb7823abbb4818fe2724e572bbac77a2.tar.xz
pipe, sysctl: remove pipe_proc_fn()
pipe_proc_fn() is no longer needed, as it only calls through to proc_dopipe_max_size(). Just put proc_dopipe_max_size() in the ctl_table entry directly, and remove the unneeded EXPORT_SYMBOL() and the ENOSYS stub for it. (The reason the ENOSYS stub isn't needed is that the pipe-max-size ctl_table entry is located directly in 'kern_table' rather than being registered separately. Therefore, the entry is already only defined when the kernel is built with sysctl support.) Link: http://lkml.kernel.org/r/20180111052902.14409-3-ebiggers3@gmail.com Signed-off-by: Eric Biggers <ebiggers@google.com> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Joe Lawrence <joe.lawrence@redhat.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: "Luis R . Rodriguez" <mcgrof@kernel.org> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Mikulas Patocka <mpatocka@redhat.com> Cc: Willy Tarreau <w@1wt.eu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
-rw-r--r--fs/pipe.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/fs/pipe.c b/fs/pipe.c
index 1f6ec1051e59..61adbf0f5b53 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -1121,16 +1121,6 @@ out_revert_acct:
}
/*
- * This should work even if CONFIG_PROC_FS isn't set, as proc_dopipe_max_size
- * will return an error.
- */
-int pipe_proc_fn(struct ctl_table *table, int write, void __user *buf,
- size_t *lenp, loff_t *ppos)
-{
- return proc_dopipe_max_size(table, write, buf, lenp, ppos);
-}
-
-/*
* After the inode slimming patch, i_pipe/i_bdev/i_cdev share the same
* location, so checking ->i_pipe is not enough to verify that this is a
* pipe.