diff options
| -rw-r--r-- | cpukit/libblock/src/flashdisk.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/cpukit/libblock/src/flashdisk.c b/cpukit/libblock/src/flashdisk.c index 87e9e53e97..418c6639b1 100644 --- a/cpukit/libblock/src/flashdisk.c +++ b/cpukit/libblock/src/flashdisk.c @@ -177,6 +177,7 @@ typedef struct rtems_flashdisk mappings. */ uint32_t block_count; /**< The number of avail. blocks. */ uint32_t unavail_blocks; /**< The number of unavail blocks. */ + uint32_t starvation_threshold; /**< Erased blocks starvation threshold. */ uint32_t erased_blocks; /**< The number of erased blocks. */ rtems_fdisk_device_ctl* devices; /**< The flash devices for this @@ -280,7 +281,7 @@ rtems_fdisk_printf (const rtems_flashdisk* fd, const char *format, ...) static bool rtems_fdisk_is_erased_blocks_starvation (rtems_flashdisk* fd) { - bool starvation = fd->erased_blocks < fd->unavail_blocks; + bool starvation = fd->erased_blocks < fd->starvation_threshold; if (starvation) fd->starvations++; @@ -1405,6 +1406,10 @@ rtems_fdisk_compact (rtems_flashdisk* fd) if (rtems_fdisk_is_erased_blocks_starvation (fd)) { +#if RTEMS_FDISK_TRACE + rtems_fdisk_printf (fd, " resolve starvation"); +#endif + ssc = rtems_fdisk_segment_queue_pop_head (&fd->used); if (!ssc) ssc = rtems_fdisk_segment_queue_pop_head (&fd->available); @@ -1482,7 +1487,12 @@ rtems_fdisk_compact (rtems_flashdisk* fd) */ if (!ssc || (pages == 0) || ((compacted_segs + segments) == 1)) + { +#if RTEMS_FDISK_TRACE + rtems_fdisk_printf (fd, " nothing to compact"); +#endif break; + } #if RTEMS_FDISK_TRACE rtems_fdisk_printf (fd, " ssc scan: %d-%d: p=%ld, seg=%ld", @@ -1539,6 +1549,7 @@ rtems_fdisk_recover_block_mappings (rtems_flashdisk* fd) * Scan each segment or each device recovering the valid pages. */ fd->erased_blocks = 0; + fd->starvation_threshold = 0; for (device = 0; device < fd->device_count; device++) { uint32_t segment; @@ -1557,6 +1568,8 @@ rtems_fdisk_recover_block_mappings (rtems_flashdisk* fd) sc->pages_desc = rtems_fdisk_page_desc_pages (sd, fd->block_size); sc->pages = rtems_fdisk_pages_in_segment (sd, fd->block_size) - sc->pages_desc; + if (sc->pages > fd->starvation_threshold) + fd->starvation_threshold = sc->pages; sc->pages_active = 0; sc->pages_used = 0; @@ -2225,6 +2238,7 @@ rtems_fdisk_print_status (rtems_flashdisk* fd) rtems_fdisk_printf (fd, "Block count\t%d", fd->block_count); rtems_fdisk_printf (fd, "Unavail blocks\t%d", fd->unavail_blocks); + rtems_fdisk_printf (fd, "Starvation threshold\t%d", fd->starvation_threshold); rtems_fdisk_printf (fd, "Starvations\t%d", fd->starvations); count = rtems_fdisk_segment_count_queue (&fd->available); total = count; |