Messages in this thread Patch in this message | | | Subject | [PATCH 1/7] UML - IRQ handler tidying | Date | Wed, 07 Feb 2007 14:47:42 -0500 | From | Jeff Dike <> |
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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> -- arch/um/kernel/irq.c | 7 +++---- arch/um/os-Linux/irq.c | 6 +++++- 2 files changed, 8 insertions(+), 5 deletions(-)
Index: linux-2.6.18-mm/arch/um/kernel/irq.c =================================================================== --- linux-2.6.18-mm.orig/arch/um/kernel/irq.c 2007-01-09 17:08:58.000000000 -0500 +++ linux-2.6.18-mm/arch/um/kernel/irq.c 2007-01-10 15:30:35.000000000 -0500 @@ -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 typ 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 typ */ 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; Index: linux-2.6.18-mm/arch/um/os-Linux/irq.c =================================================================== --- linux-2.6.18-mm.orig/arch/um/os-Linux/irq.c 2007-01-10 15:08:33.000000000 -0500 +++ linux-2.6.18-mm/arch/um/os-Linux/irq.c 2007-01-10 15:34:43.000000000 -0500 @@ -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, 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) { - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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