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authorHugh Dickins <hugh.dickins@tiscali.co.uk>2009-09-12 12:21:27 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-14 17:45:31 -0700
commit2195d2818c37bdf263865f1e9effccdd9fc5f9d4 (patch)
tree3b74a195c2b69d8390c67c7cd46139df0bdd69ec /ipc
parent69def9f05dfce3281bb06599057e6b8097385d39 (diff)
downloadlinux-linaro-android-2195d2818c37bdf263865f1e9effccdd9fc5f9d4.tar.gz
fix undefined reference to user_shm_unlock
My 353d5c30c666580347515da609dd74a2b8e9b828 "mm: fix hugetlb bug due to user_shm_unlock call" broke the CONFIG_SYSVIPC !CONFIG_MMU build of both 2.6.31 and 2.6.30.6: "undefined reference to `user_shm_unlock'". gcc didn't understand my comment! so couldn't figure out to optimize away user_shm_unlock() from the error path in the hugetlb-less case, as it does elsewhere. Help it to do so, in a language it understands. Reported-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc')
-rw-r--r--ipc/shm.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ipc/shm.c b/ipc/shm.c
index 1bc4701ef4f..30162a59621 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -410,7 +410,7 @@ static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
return error;
no_id:
- if (shp->mlock_user) /* shmflg & SHM_HUGETLB case */
+ if (is_file_hugepages(file) && shp->mlock_user)
user_shm_unlock(size, shp->mlock_user);
fput(file);
no_file: