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| author | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2007-05-06 15:12:54 +0200 |
|---|---|---|
| committer | Artem Bityutskiy <Artem.Bityutskiy@nokia.com> | 2007-07-18 15:53:08 +0200 |
| commit | 92ad8f37509a7d9d5dd6e0092211b092a7ca7fb1 (patch) | |
| tree | 96c0f9c524b80e8d1d247e3f462c0c0d6fb782a5 /drivers/mtd/ubi/cdev.c | |
| parent | UBI: add few more comments (diff) | |
| download | linux-92ad8f37509a7d9d5dd6e0092211b092a7ca7fb1.tar.xz linux-92ad8f37509a7d9d5dd6e0092211b092a7ca7fb1.zip | |
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/cdev.c')
| -rw-r--r-- | drivers/mtd/ubi/cdev.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/mtd/ubi/cdev.c b/drivers/mtd/ubi/cdev.c index 959044a2ddbf..34375ee6d4a4 100644 --- a/drivers/mtd/ubi/cdev.c +++ b/drivers/mtd/ubi/cdev.c @@ -153,7 +153,7 @@ static int vol_cdev_release(struct inode *inode, struct file *file) ubi_warn("update of volume %d not finished, volume is damaged", vol->vol_id); vol->updating = 0; - kfree(vol->upd_buf); + vfree(vol->upd_buf); } ubi_close_volume(desc); @@ -232,7 +232,7 @@ static ssize_t vol_cdev_read(struct file *file, __user char *buf, size_t count, tbuf_size = vol->usable_leb_size; if (count < tbuf_size) tbuf_size = ALIGN(count, ubi->min_io_size); - tbuf = kmalloc(tbuf_size, GFP_KERNEL); + tbuf = vmalloc(tbuf_size); if (!tbuf) return -ENOMEM; @@ -271,7 +271,7 @@ static ssize_t vol_cdev_read(struct file *file, __user char *buf, size_t count, len = count > tbuf_size ? tbuf_size : count; } while (count); - kfree(tbuf); + vfree(tbuf); return err ? err : count_save - count; } @@ -320,7 +320,7 @@ static ssize_t vol_cdev_direct_write(struct file *file, const char __user *buf, tbuf_size = vol->usable_leb_size; if (count < tbuf_size) tbuf_size = ALIGN(count, ubi->min_io_size); - tbuf = kmalloc(tbuf_size, GFP_KERNEL); + tbuf = vmalloc(tbuf_size); if (!tbuf) return -ENOMEM; @@ -355,7 +355,7 @@ static ssize_t vol_cdev_direct_write(struct file *file, const char __user *buf, len = count > tbuf_size ? tbuf_size : count; } - kfree(tbuf); + vfree(tbuf); return err ? err : count_save - count; } |