libavr32: drivers/block/core.c Source File

00001 
00041 #include <assert.h>
00042 #include <debug.h>
00043 #include <malloc.h>
00044 #include <string.h>
00045 #include <types.h>
00046 #include <block/device.h>
00047 
00056 struct block_request *block_alloc_request(struct block_device *bdev)
00057 {
00058         struct block_request    *req;
00059 
00060         assert(bdev);
00061         assert(bdev->alloc_req);
00062 
00063         req = bdev->alloc_req(bdev);
00064         if (likely(req))
00065                 req->bdev = bdev;
00066         else
00067                 dbg_warning("block: failed to allocate request from dev %p\n",
00068                                 bdev);
00069 
00070         return req;
00071 }
00072 
00080 void block_free_request(struct block_device *bdev, struct block_request *req)
00081 {
00082         assert(bdev->free_req);
00083 
00084         if (!req)
00085                 return;
00086 
00087         assert(bdev == req->bdev);
00088 
00089         bdev->free_req(bdev, req);
00090 }