diff options
| author | Jeff Dike <jdike@addtoit.com> | 2007-02-10 01:44:23 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-11 10:51:23 -0800 |
| commit | f2e62992a232544d612b7b95e932fbf3592944e1 (patch) | |
| tree | 2c845c925ed522453f69d5e8c772fc9153124c2d | |
| parent | f688144b827749879279c3ad272b8d874fc17231 (diff) | |
| download | op-kernel-dev-f2e62992a232544d612b7b95e932fbf3592944e1.zip op-kernel-dev-f2e62992a232544d612b7b95e932fbf3592944e1.tar.gz | |
[PATCH] uml: IRQ handler tidying
Tidying the irq code -
make a variable static
activate_fd can call kmalloc directly since it's now kernel code
added a no-locking comment
fixed a style violation
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | arch/um/kernel/irq.c | 7 | ||||
| -rw-r--r-- | arch/um/os-Linux/irq.c | 6 |
2 files changed, 8 insertions, 5 deletions
diff --git a/arch/um/kernel/irq.c b/arch/um/kernel/irq.c index 5c1e611..50a288b 100644 --- a/arch/um/kernel/irq.c +++ b/arch/um/kernel/irq.c @@ -79,7 +79,7 @@ skip: return 0; } -struct irq_fd *active_fds = NULL; +static struct irq_fd *active_fds = NULL; static struct irq_fd **last_irq_ptr = &active_fds; extern void free_irqs(void); @@ -124,8 +124,8 @@ int activate_fd(int irq, int fd, int type, void *dev_id) if (err < 0) goto out; - new_fd = um_kmalloc(sizeof(*new_fd)); err = -ENOMEM; + new_fd = kmalloc(sizeof(struct irq_fd), GFP_KERNEL); if (new_fd == NULL) goto out; @@ -176,9 +176,8 @@ int activate_fd(int irq, int fd, int type, void *dev_id) */ spin_unlock_irqrestore(&irq_lock, flags); kfree(tmp_pfd); - tmp_pfd = NULL; - tmp_pfd = um_kmalloc(n); + tmp_pfd = kmalloc(n, GFP_KERNEL); if (tmp_pfd == NULL) goto out_kfree; diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c index d46b818..d1b61d4 100644 --- a/arch/um/os-Linux/irq.c +++ b/arch/um/os-Linux/irq.c @@ -20,6 +20,10 @@ #include "os.h" #include "um_malloc.h" +/* + * Locked by irq_lock in arch/um/kernel/irq.c. Changed by os_create_pollfd + * and os_free_irq_by_cb, which are called under irq_lock. + */ static struct pollfd *pollfds = NULL; static int pollfds_num = 0; static int pollfds_size = 0; @@ -58,7 +62,7 @@ int os_create_pollfd(int fd, int events, void *tmp_pfd, int size_tmpfds) if (pollfds_num == pollfds_size) { if (size_tmpfds <= pollfds_size * sizeof(pollfds[0])) { /* return min size needed for new pollfds area */ - return((pollfds_size + 1) * sizeof(pollfds[0])); + return (pollfds_size + 1) * sizeof(pollfds[0]); } if (pollfds != NULL) { |
