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| author | Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> | 2006-10-30 22:07:09 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-10-31 08:06:59 -0800 |
| commit | 2fe30a34a141c2188ff2cdd670d031088d9c5d20 (patch) | |
| tree | b4b13167ad4f0c2520f9bd2710f8b429b1921e27 /arch/um | |
| parent | 33f775eea185e8df7701c4afc2c8fcee85c83282 (diff) | |
| download | linux-2fe30a34a141c2188ff2cdd670d031088d9c5d20.tar.gz | |
[PATCH] uml ubd driver: convert do_ubd to a boolean variable
do_ubd is actually just a boolean variable - the way it is used currently is a leftover from the old 2.4 block layer, but it is still used; its use is suspicious, but removing it would be too intrusive for now and needs more thinking. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um')
| -rw-r--r-- | arch/um/drivers/ubd_kern.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/um/drivers/ubd_kern.c b/arch/um/drivers/ubd_kern.c index 6cd8988e8fd0..460d669b4774 100644 --- a/arch/um/drivers/ubd_kern.c +++ b/arch/um/drivers/ubd_kern.c @@ -112,7 +112,9 @@ static DEFINE_SPINLOCK(ubd_io_lock); static DEFINE_MUTEX(ubd_lock); -static void (*do_ubd)(void); +/* XXX - this made sense in 2.4 days, now it's only used as a boolean, and + * probably it doesn't make sense even for that. */ +static int do_ubd; static int ubd_open(struct inode * inode, struct file * filp); static int ubd_release(struct inode * inode, struct file * file); @@ -508,6 +510,7 @@ static inline void ubd_finish(struct request *req, int error) spin_unlock(&ubd_io_lock); } +/* XXX - move this inside ubd_intr. */ /* Called without ubd_io_lock held, and only in interrupt context. */ static void ubd_handler(void) { @@ -515,7 +518,7 @@ static void ubd_handler(void) struct request *rq = elv_next_request(ubd_queue); int n; - do_ubd = NULL; + do_ubd = 0; intr_count++; n = os_read_file(thread_fd, &req, sizeof(req)); if(n != sizeof(req)){ @@ -1043,7 +1046,7 @@ static void do_ubd_request(request_queue_t *q) return; err = prepare_request(req, &io_req); if(!err){ - do_ubd = ubd_handler; + do_ubd = 1; n = os_write_file(thread_fd, (char *) &io_req, sizeof(io_req)); if(n != sizeof(io_req)) |