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authorRichard Weinberger <richard@nod.at>2012-12-03 20:57:47 +0100
committerArtem Bityutskiy <artem.bityutskiy@linux.intel.com>2012-12-04 16:04:31 +0200
commit894aef215775b56b725e9dde856b7a8b091ddfcc (patch)
tree1268cbe06004ae4d8b7f35d193310624fe36e824 /drivers/mtd
parented4b7021cb51fe5a0f260df03298709347a26967 (diff)
UBI: dont call ubi_self_check_all_ff() in __wl_get_peb()
As ubi_self_check_all_ff() might sleep we are not allowed to call it from atomic context. For now we call it only from ubi_wl_get_peb(). There are some code paths where it would also make sense, but these paths are currently atomic and only enabled when fastmap is used. Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/ubi/wl.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 1f9f5f7a5d0f..2144f611196e 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -498,7 +498,7 @@ out:
* @ubi: UBI device description object
*
* This function returns a physical eraseblock in case of success and a
- * negative error code in case of failure. Might sleep.
+ * negative error code in case of failure.
*/
static int __wl_get_peb(struct ubi_device *ubi)
{
@@ -540,13 +540,6 @@ retry:
* ubi_wl_get_peb() after removing e from the pool. */
prot_queue_add(ubi, e);
#endif
- err = ubi_self_check_all_ff(ubi, e->pnum, ubi->vid_hdr_aloffset,
- ubi->peb_size - ubi->vid_hdr_aloffset);
- if (err) {
- ubi_err("new PEB %d does not contain all 0xFF bytes", e->pnum);
- return err;
- }
-
return e->pnum;
}
@@ -690,12 +683,19 @@ static struct ubi_wl_entry *get_peb_for_wl(struct ubi_device *ubi)
int ubi_wl_get_peb(struct ubi_device *ubi)
{
- int peb;
+ int peb, err;
spin_lock(&ubi->wl_lock);
peb = __wl_get_peb(ubi);
spin_unlock(&ubi->wl_lock);
+ err = ubi_self_check_all_ff(ubi, peb, ubi->vid_hdr_aloffset,
+ ubi->peb_size - ubi->vid_hdr_aloffset);
+ if (err) {
+ ubi_err("new PEB %d does not contain all 0xFF bytes", peb);
+ return err;
+ }
+
return peb;
}
#endif