Date: Wed, 17 Nov 2010 22:28:04 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r215443 - in head/sys: kern sys Message-ID: <201011172228.oAHMS4PV006140@svn.freebsd.org>
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Author: jhb Date: Wed Nov 17 22:28:04 2010 New Revision: 215443 URL: http://svn.freebsd.org/changeset/base/215443 Log: Add a resource_list_reserved() method that returns true if a resource list entry contains a reserved resource. Modified: head/sys/kern/subr_bus.c head/sys/sys/bus.h Modified: head/sys/kern/subr_bus.c ============================================================================== --- head/sys/kern/subr_bus.c Wed Nov 17 21:45:11 2010 (r215442) +++ head/sys/kern/subr_bus.c Wed Nov 17 22:28:04 2010 (r215443) @@ -2934,6 +2934,30 @@ resource_list_busy(struct resource_list } /** + * @brief Determine if a resource entry is reserved. + * + * Returns true if a resource entry is reserved meaning that it has an + * associated "reserved" resource. The resource can either be + * allocated or unallocated. + * + * @param rl the resource list to search + * @param type the resource entry type (e.g. SYS_RES_MEMORY) + * @param rid the resource identifier + * + * @returns Non-zero if the entry is reserved, zero otherwise. + */ +int +resource_list_reserved(struct resource_list *rl, int type, int rid) +{ + struct resource_list_entry *rle; + + rle = resource_list_find(rl, type, rid); + if (rle != NULL && rle->flags & RLE_RESERVED) + return (1); + return (0); +} + +/** * @brief Find a resource entry by type and rid. * * @param rl the resource list to search Modified: head/sys/sys/bus.h ============================================================================== --- head/sys/sys/bus.h Wed Nov 17 21:45:11 2010 (r215442) +++ head/sys/sys/bus.h Wed Nov 17 22:28:04 2010 (r215443) @@ -256,6 +256,7 @@ int resource_list_add_next(struct resour u_long start, u_long end, u_long count); int resource_list_busy(struct resource_list *rl, int type, int rid); +int resource_list_reserved(struct resource_list *rl, int type, int rid); struct resource_list_entry* resource_list_find(struct resource_list *rl, int type, int rid);
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