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authorZhihao Cheng <chengzhihao1@huawei.com>2023-11-13 17:48:12 +0800
committerDavid Oberhollenzer <david.oberhollenzer@sigma-star.at>2023-11-20 07:43:34 +0100
commit2425614638a798e55e79e1b1f9b8d84567769311 (patch)
treef869bbaf48ea9cfd0db936fb26d6c4ad7076ed94 /include/mtd
parentb4b45994a9ba02d575625e3b1076c337be7d4861 (diff)
ubiattach: introduce need_resv_pool in UBI_IOCATT
The ioctl UBI_IOCATT has been extended with need_resv_pool parameter in [1]. This parameter is used for deciding whether to reserve PEBs for filling pool/wl_pool for target ubi device. This parameter will be effective when fastmap is enabled, which will slow down the frequency of updating fastmap by filling more free PEBs in pool/wl_pool. See details in [2]. [1] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ac085cfe57df2cc1d7a5c4c5e64b8780c8ad452f [2] https://bugzilla.kernel.org/show_bug.cgi?id=217787 Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com> Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Diffstat (limited to 'include/mtd')
-rw-r--r--include/mtd/ubi-user.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/mtd/ubi-user.h b/include/mtd/ubi-user.h
index a389693..bb5c0f9 100644
--- a/include/mtd/ubi-user.h
+++ b/include/mtd/ubi-user.h
@@ -236,6 +236,7 @@ enum {
* @vid_hdr_offset: VID header offset (use defaults if %0)
* @max_beb_per1024: maximum expected number of bad PEB per 1024 PEBs
* @disable_fm: whether disable fastmap
+ * @need_resv_pool: whether reserve free pebs for filling pool/wl_pool
* @padding: reserved for future, not used, has to be zeroed
*
* This data structure is used to specify MTD device UBI has to attach and the
@@ -282,7 +283,8 @@ struct ubi_attach_req {
int32_t vid_hdr_offset;
int16_t max_beb_per1024;
int8_t disable_fm;
- int8_t padding[9];
+ int8_t need_resv_pool;
+ int8_t padding[8];
};
/*