diff options
| author | Josselin Costanzi <josselin.costanzi@mobile-devices.fr> | 2012-02-22 16:37:05 +0100 |
|---|---|---|
| committer | Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2012-03-09 09:39:31 +0200 |
| commit | 43b043e78b876ce27034f167897b57fd2556ad29 (patch) | |
| tree | 3397ed09387b4f74b4c2f23b1d04943baa0c7b11 /drivers/mtd/ubi/build.c | |
| parent | 7eb3aa65853e1b223bfc786b023b702018cb76c0 (diff) | |
UBI: reduce memory consumption
Remove the pre-allocated 'peb_buf2' buffer because we do not really need it.
The only reason UBI has it is to check that the data were written correctly.
But we do not have to have 2 buffers for this and waste RAM - we can just
compare CRC checksums instead. This reduces UBI memory consumption.
Artem bityutskiy: massaged the patch and commit message
Signed-off-by: Josselin Costanzi <josselin.costanzi@mobile-devices.fr>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Diffstat (limited to 'drivers/mtd/ubi/build.c')
| -rw-r--r-- | drivers/mtd/ubi/build.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c index 115749f20f9..6e0806bff9f 100644 --- a/drivers/mtd/ubi/build.c +++ b/drivers/mtd/ubi/build.c @@ -949,10 +949,6 @@ int ubi_attach_mtd_dev(struct mtd_info *mtd, int ubi_num, int vid_hdr_offset) if (!ubi->peb_buf1) goto out_free; - ubi->peb_buf2 = vmalloc(ubi->peb_size); - if (!ubi->peb_buf2) - goto out_free; - err = ubi_debugging_init_dev(ubi); if (err) goto out_free; @@ -1030,7 +1026,6 @@ out_debugging: ubi_debugging_exit_dev(ubi); out_free: vfree(ubi->peb_buf1); - vfree(ubi->peb_buf2); if (ref) put_device(&ubi->dev); else @@ -1102,7 +1097,6 @@ int ubi_detach_mtd_dev(int ubi_num, int anyway) put_mtd_device(ubi->mtd); ubi_debugging_exit_dev(ubi); vfree(ubi->peb_buf1); - vfree(ubi->peb_buf2); ubi_msg("mtd%d is detached from ubi%d", ubi->mtd->index, ubi->ubi_num); put_device(&ubi->dev); return 0; |