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authorDavidlohr Bueso <davidlohr.bueso@hp.com>2013-09-11 14:26:24 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-11 15:59:42 -0700
commitd9a605e40b1376eb02b067d7690580255a0df68f (patch)
treeb21254f7172ae8db6faffd9b7941d579fa421478 /ipc/util.h
parentipc,shm: shorten critical region for shmat (diff)
downloadlinux-dev-d9a605e40b1376eb02b067d7690580255a0df68f.tar.xz
linux-dev-d9a605e40b1376eb02b067d7690580255a0df68f.zip
ipc: rename ids->rw_mutex
Since in some situations the lock can be shared for readers, we shouldn't be calling it a mutex, rename it to rwsem. Signed-off-by: Davidlohr Bueso <davidlohr.bueso@hp.com> Tested-by: Sedat Dilek <sedat.dilek@gmail.com> Cc: Rik van Riel <riel@redhat.com> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'ipc/util.h')
-rw-r--r--ipc/util.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/ipc/util.h b/ipc/util.h
index 41a6c4d26399..0a362ffca972 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -94,10 +94,10 @@ void __init ipc_init_proc_interface(const char *path, const char *header,
#define ipcid_to_idx(id) ((id) % SEQ_MULTIPLIER)
#define ipcid_to_seqx(id) ((id) / SEQ_MULTIPLIER)
-/* must be called with ids->rw_mutex acquired for writing */
+/* must be called with ids->rwsem acquired for writing */
int ipc_addid(struct ipc_ids *, struct kern_ipc_perm *, int);
-/* must be called with ids->rw_mutex acquired for reading */
+/* must be called with ids->rwsem acquired for reading */
int ipc_get_maxid(struct ipc_ids *);
/* must be called with both locks acquired. */