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| author |   Stanislav Kinsbursky <skinsbursky@parallels.com> | 2013-01-04 15:35:01 -0800 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2013-01-04 16:11:46 -0800 |
| commit | 51eeacaa07d1372a7bc9612548ffe6cd846f4f2f (patch) | |
| tree | d92e69517b9973d5c2dd4697e3b38be6539bc2ca /ipc/msgutil.c | |
| parent | ipc: convert prepare_copy() from macro to function (diff) | |
| download | linux-dev-51eeacaa07d1372a7bc9612548ffe6cd846f4f2f.tar.xz linux-dev-51eeacaa07d1372a7bc9612548ffe6cd846f4f2f.zip | |
ipc: simplify message copying
Remove the redundant and confusing fill_copy(). Also add copy_msg()
check for error. In this case exit from the function have to be done
instead of break, because further code interprets any error as EAGAIN.
Also define copy_msg() for the case when CONFIG_CHECKPOINT_RESTORE is
disabled.
Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc/msgutil.c')
| -rw-r--r-- | ipc/msgutil.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/ipc/msgutil.c b/ipc/msgutil.c index 7eecdad40efc..ebfcbfa8b7f2 100644 --- a/ipc/msgutil.c +++ b/ipc/msgutil.c @@ -140,6 +140,11 @@ struct msg_msg *copy_msg(struct msg_msg *src, struct msg_msg *dst) return dst; } +#else +struct msg_msg *copy_msg(struct msg_msg *src, struct msg_msg *dst) +{ + return ERR_PTR(-ENOSYS); +} #endif int store_msg(void __user *dest, struct msg_msg *msg, int len) { |