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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-03-14 17:11:29 +0200
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2011-03-16 13:50:16 +0200
commit6edb9793959fb547a15d5ffe6b142d9f0b3e41a6 (patch)
tree85ce150c27b728dbddcfbd303154c7e59c95e548 /drivers/mtd
parent332873d60b943c9bf53957c6e334038ac5e9dc6b (diff)
downloadop-kernel-dev-6edb9793959fb547a15d5ffe6b142d9f0b3e41a6.zip
op-kernel-dev-6edb9793959fb547a15d5ffe6b142d9f0b3e41a6.tar.gz
UBI: kill debugging buffer
This patch kills the 'ubi->dbg_peb_buf' debugging buffer and the associated mutex, because all users of this buffer are now gone. We are killing this buffer because we are going to switch to dynamic debugging control, just like in UBIFS, which means that CONFIG_MTD_UBI_DEBUG_PARANOID will be removed. In this case we'd end up always allocating 'ubi->dbg_peb_buf', which is rather large (128KiB or more), and this would be wasteful. Thus, we are just killing it. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/ubi/build.c13
-rw-r--r--drivers/mtd/ubi/ubi.h6
2 files changed, 0 insertions, 19 deletions
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index ec0ad19..3a04719 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -939,13 +939,6 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset)
if (!ubi->peb_buf2)
goto out_free;
-#ifdef CONFIG_MTD_UBI_DEBUG_PARANOID
- mutex_init(&ubi->dbg_buf_mutex);
- ubi->dbg_peb_buf = vmalloc(ubi->peb_size);
- if (!ubi->dbg_peb_buf)
- goto out_free;
-#endif
-
err = attach_by_scanning(ubi);
if (err) {
dbg_err("failed to attach by scanning, error %d", err);
@@ -1011,9 +1004,6 @@ out_detach:
out_free:
vfree(ubi->peb_buf1);
vfree(ubi->peb_buf2);
-#ifdef CONFIG_MTD_UBI_DEBUG_PARANOID
- vfree(ubi->dbg_peb_buf);
-#endif
if (ref)
put_device(&ubi->dev);
else
@@ -1084,9 +1074,6 @@ int ubi_detach_mtd_dev(int ubi_num, int anyway)
put_mtd_device(ubi->mtd);
vfree(ubi->peb_buf1);
vfree(ubi->peb_buf2);
-#ifdef CONFIG_MTD_UBI_DEBUG_PARANOID
- vfree(ubi->dbg_peb_buf);
-#endif
ubi_msg("mtd%d is detached from ubi%d", ubi->mtd->index, ubi->ubi_num);
put_device(&ubi->dev);
return 0;
diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index 9af362c..49c864d 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -388,8 +388,6 @@ struct ubi_wl_entry;
* @peb_buf2: another buffer of PEB size used for different purposes
* @buf_mutex: protects @peb_buf1 and @peb_buf2
* @ckvol_mutex: serializes static volume checking when opening
- * @dbg_peb_buf: buffer of PEB size used for debugging
- * @dbg_buf_mutex: protects @dbg_peb_buf
*/
struct ubi_device {
struct cdev cdev;
@@ -471,10 +469,6 @@ struct ubi_device {
void *peb_buf2;
struct mutex buf_mutex;
struct mutex ckvol_mutex;
-#ifdef CONFIG_MTD_UBI_DEBUG_PARANOID
- void *dbg_peb_buf;
- struct mutex dbg_buf_mutex;
-#endif
};
extern struct kmem_cache *ubi_wl_entry_slab;
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