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authorArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2007-05-06 16:12:54 +0300
committerArtem Bityutskiy <Artem.Bityutskiy@nokia.com>2007-07-18 16:53:08 +0300
commit92ad8f37509a7d9d5dd6e0092211b092a7ca7fb1 (patch)
tree96c0f9c524b80e8d1d247e3f462c0c0d6fb782a5 /drivers/mtd/ubi/io.c
parent79b510c0f21174f4bd055d1aab156e548ae3a5f2 (diff)
UBI: use vmalloc for large buffers
UBI allocates temporary buffers of PEB size, which may be 256KiB. Use vmalloc instead of kmalloc for such big temporary buffers. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
Diffstat (limited to 'drivers/mtd/ubi/io.c')
-rw-r--r--drivers/mtd/ubi/io.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index 438914d0515..7bb473e646e 100644
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -382,7 +382,7 @@ static int torture_peb(const struct ubi_device *ubi, int pnum)
void *buf;
int err, i, patt_count;
- buf = kmalloc(ubi->peb_size, GFP_KERNEL);
+ buf = vmalloc(ubi->peb_size);
if (!buf)
return -ENOMEM;
@@ -437,7 +437,7 @@ out:
* physical eraseblock which means something is wrong with it.
*/
err = -EIO;
- kfree(buf);
+ vfree(buf);
return err;
}
@@ -1224,9 +1224,10 @@ static int paranoid_check_all_ff(const struct ubi_device *ubi, int pnum,
void *buf;
loff_t addr = (loff_t)pnum * ubi->peb_size + offset;
- buf = kzalloc(len, GFP_KERNEL);
+ buf = vmalloc(len);
if (!buf)
return -ENOMEM;
+ memset(buf, 0, len);
err = ubi->mtd->read(ubi->mtd, addr, len, &read, buf);
if (err && err != -EUCLEAN) {
@@ -1242,7 +1243,7 @@ static int paranoid_check_all_ff(const struct ubi_device *ubi, int pnum,
goto fail;
}
- kfree(buf);
+ vfree(buf);
return 0;
fail:
@@ -1252,7 +1253,7 @@ fail:
err = 1;
error:
ubi_dbg_dump_stack();
- kfree(buf);
+ vfree(buf);
return err;
}