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| author | Richard Weinberger <richard@nod.at> | 2012-12-03 20:57:47 +0100 |
|---|---|---|
| committer | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-12-04 16:04:31 +0200 |
| commit | 894aef215775b56b725e9dde856b7a8b091ddfcc (patch) | |
| tree | 1268cbe06004ae4d8b7f35d193310624fe36e824 /drivers/mtd | |
| parent | ed4b7021cb51fe5a0f260df03298709347a26967 (diff) | |
| download | linux-894aef215775b56b725e9dde856b7a8b091ddfcc.tar.gz | |
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.c | 18 |
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 |