Re: [Patch] shm bug introduced with pagecache in 2.3.11

Benjamin C.R. LaHaise (blah@kvack.org)
Fri, 19 Nov 1999 14:52:02 -0500 (EST)


On Fri, 19 Nov 1999, Linus Torvalds wrote:

> Is anybody willing to take a stab at creating a read-write semaphore?

Sure. Does the following sound?

void down_read(struct rw_semaphore *sem);
void down_write(struct rw_semaphore *sem);
void up_read(struct rw_semaphore *sem);
void up_write(struct rw_semaphore *sem);

Looking at existing semaphores and rwlocks, it looks like a quick and
painless beast to create.

-ben

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