UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

ubi: Introduce in_pq() 

This function works like in_wl_tree() but checks whether an ubi_wl_entry
is currently in the protection queue.
We need this function to query the current state of an ubi_wl_entry.

Signed-off-by: Richard Weinberger <richard@nod.at>
This commit is contained in:
Richard Weinberger 2018-11-07 23:16:18 +01:00
parent a3b22b9f11
commit b32b78f892
1 changed files with 23 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
drivers/mtd/ubi/wl.c
View File

@ -277,6 +277,27 @@ static int in_wl_tree(struct ubi_wl_entry *e, struct rb_root *root)
return 0;
}
/**
* in_pq - check if a wear-leveling entry is present in the protection queue.
* @ubi: UBI device description object
* @e: the wear-leveling entry to check
*
* This function returns non-zero if @e is in the protection queue and zero
* if it is not.
*/
static inline int in_pq(const struct ubi_device *ubi, struct ubi_wl_entry *e)
{
struct ubi_wl_entry *p;
int i;
for (i = 0; i < UBI_PROT_QUEUE_LEN; ++i)
list_for_each_entry(p, &ubi->pq[i], u.list)
if (p == e)
return 1;
return 0;
}
/**
* prot_queue_add - add physical eraseblock to the protection queue.
* @ubi: UBI device description object
@ -1848,16 +1869,11 @@ static int self_check_in_wl_tree(const struct ubi_device *ubi,
static int self_check_in_pq(const struct ubi_device *ubi,
struct ubi_wl_entry *e)
{
struct ubi_wl_entry *p;
int i;
if (!ubi_dbg_chk_gen(ubi))
return 0;
for (i = 0; i < UBI_PROT_QUEUE_LEN; ++i)
list_for_each_entry(p, &ubi->pq[i], u.list)
if (p == e)
return 0;
if (in_pq(ubi, e))
return 0;
ubi_err(ubi, "self-check failed for PEB %d, EC %d, Protect queue",
e->pnum, e->ec);