Messages in this thread Patch in this message | | | Date | Wed, 06 Nov 2013 15:47:46 +0400 | From | Cyrill Gorcunov <> | Subject | [patch 4/7] eventfd: Use sequential fdinfo engine |
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Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Pavel Emelyanov <xemul@parallels.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Andrey Vagin <avagin@openvz.org> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: James Bottomley <jbottomley@parallels.com> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Matthew Helsley <matt.helsley@gmail.com> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Andrew Morton <akpm@linux-foundation.org> --- fs/eventfd.c | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-)
Index: linux-2.6.git/fs/eventfd.c =================================================================== --- linux-2.6.git.orig/fs/eventfd.c +++ linux-2.6.git/fs/eventfd.c @@ -287,23 +287,28 @@ static ssize_t eventfd_write(struct file } #ifdef CONFIG_PROC_FS -static int eventfd_show_fdinfo(struct seq_file *m, struct file *f) +static int seq_show(struct seq_file *m, void *v) { - struct eventfd_ctx *ctx = f->private_data; - int ret; + struct eventfd_ctx *ctx = ((struct file *)m->private)->private_data; spin_lock_irq(&ctx->wqh.lock); - ret = seq_printf(m, "eventfd-count: %16llx\n", - (unsigned long long)ctx->count); + seq_printf(m, "eventfd-count: %16llx\n", (unsigned long long)ctx->count); spin_unlock_irq(&ctx->wqh.lock); - return ret; + return 0; } + +static struct seq_operations eventfd_fdinfo_op = { + .start = single_start, + .next = single_next, + .stop = single_stop, + .show = seq_show, +}; #endif static const struct file_operations eventfd_fops = { #ifdef CONFIG_PROC_FS - .show_fdinfo = eventfd_show_fdinfo, + .fdinfo_op = &eventfd_fdinfo_op, #endif .release = eventfd_release, .poll = eventfd_poll,
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