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| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2007-12-17 15:42:57 +0200 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2007-12-26 19:15:16 +0200 |
| commit | d05c77a816974c09f8c7e8f48e5b9f7b59dafdf3 (patch) | |
| tree | 6263ef3ad76c654e9d2635e5145f15c2b517edeb /drivers/mtd/ubi/eba.c | |
| parent | db6e5770ef0ab351a403ac26e1ab1309e58f15d7 (diff) | |
| download | linux-d05c77a816974c09f8c7e8f48e5b9f7b59dafdf3.tar.bz2 | |
UBI: introduce volume refcounting
Add ref_count field to UBI volumes and remove weired "vol->removed"
field. This way things are better understandable and we do not have
to do whold show_attr operation under spinlock.
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd/ubi/eba.c')
| -rw-r--r-- | drivers/mtd/ubi/eba.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c index 2ff34923e51d..84f7dc9fd3ac 100644 --- a/drivers/mtd/ubi/eba.c +++ b/drivers/mtd/ubi/eba.c @@ -301,6 +301,8 @@ int ubi_eba_unmap_leb(struct ubi_device *ubi, struct ubi_volume *vol, { int err, pnum, vol_id = vol->vol_id; + ubi_assert(vol->ref_count > 0); + if (ubi->ro_mode) return -EROFS; @@ -349,6 +351,8 @@ int ubi_eba_read_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum, struct ubi_vid_hdr *vid_hdr; uint32_t uninitialized_var(crc); + ubi_assert(vol->ref_count > 0); + err = leb_read_lock(ubi, vol_id, lnum); if (err) return err; @@ -572,6 +576,8 @@ int ubi_eba_write_leb(struct ubi_device *ubi, struct ubi_volume *vol, int lnum, int err, pnum, tries = 0, vol_id = vol->vol_id; struct ubi_vid_hdr *vid_hdr; + ubi_assert(vol->ref_count > 0); + if (ubi->ro_mode) return -EROFS; @@ -705,6 +711,8 @@ int ubi_eba_write_leb_st(struct ubi_device *ubi, struct ubi_volume *vol, struct ubi_vid_hdr *vid_hdr; uint32_t crc; + ubi_assert(vol->ref_count > 0); + if (ubi->ro_mode) return -EROFS; @@ -819,6 +827,8 @@ int ubi_eba_atomic_leb_change(struct ubi_device *ubi, struct ubi_volume *vol, struct ubi_vid_hdr *vid_hdr; uint32_t crc; + ubi_assert(vol->ref_count > 0); + if (ubi->ro_mode) return -EROFS; |