diff options
| -rw-r--r-- | drivers/mtd/mtdcore.c | 16 | ||||
| -rw-r--r-- | include/linux/mtd/mtd.h | 1 |
2 files changed, 16 insertions, 1 deletions
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c index fb6c779abb..7a15ded8c8 100644 --- a/drivers/mtd/mtdcore.c +++ b/drivers/mtd/mtdcore.c @@ -87,14 +87,17 @@ struct idr_layer { struct idr { struct idr_layer id[MAX_IDR_ID]; + bool updated; }; #define DEFINE_IDR(name) struct idr name; void idr_remove(struct idr *idp, int id) { - if (idp->id[id].used) + if (idp->id[id].used) { idp->id[id].used = 0; + idp->updated = true; + } return; } @@ -134,6 +137,7 @@ int idr_alloc(struct idr *idp, void *ptr, int start, int end, gfp_t gfp_mask) if (idl->used == 0) { idl->used = 1; idl->ptr = ptr; + idp->updated = true; return i; } i++; @@ -155,6 +159,16 @@ struct mtd_info *__mtd_next_device(int i) } EXPORT_SYMBOL_GPL(__mtd_next_device); +bool mtd_dev_list_updated(void) +{ + if (mtd_idr.updated) { + mtd_idr.updated = false; + return true; + } + + return false; +} + #ifndef __UBOOT__ static LIST_HEAD(mtd_notifiers); diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h index 68e5915324..d20ebd8202 100644 --- a/include/linux/mtd/mtd.h +++ b/include/linux/mtd/mtd.h @@ -581,6 +581,7 @@ int mtd_arg_off_size(int argc, char *const argv[], int *idx, loff_t *off, void mtd_get_len_incl_bad(struct mtd_info *mtd, uint64_t offset, const uint64_t length, uint64_t *len_incl_bad, int *truncated); +bool mtd_dev_list_updated(void); /* drivers/mtd/mtd_uboot.c */ int mtd_search_alternate_name(const char *mtdname, char *altname, |