linux-toradex.git/drivers/mtd/ubi/kapi.c, branch v4.10 Linux kernel for Apalis and Colibri modules UBI: provide an helper to check whether a LEB is mapped or not 2016-10-02T20:48:14+00:00 Boris Brezillon boris.brezillon@free-electrons.com 2016-09-16T14:59:23+00:00 7554769641da272ea8821194c2efda08a11014b0 This is part of the process of hiding UBI EBA's internal to other part of the UBI implementation, so that we can add new information to the EBA table without having to patch different places in the UBI code. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Richard Weinberger <richard@nod.at> 
This is part of the process of hiding UBI EBA's internal to other part of
the UBI implementation, so that we can add new information to the EBA
table without having to patch different places in the UBI code.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
UBI: add an helper to check lnum validity 2016-10-02T20:48:14+00:00 Boris Brezillon boris.brezillon@free-electrons.com 2016-09-16T14:59:22+00:00 9a5f09ac0ab83e4a965a24edd6cf7cb0303c6dc9 ubi_leb_valid() is here to replace the lnum < 0 || lnum >= vol->reserved_pebs checks. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Richard Weinberger <richard@nod.at> 
ubi_leb_valid() is here to replace the
lnum < 0 || lnum >= vol->reserved_pebs checks.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
ubi: Don't bypass ->getattr() 2016-06-14T08:51:42+00:00 Richard Weinberger richard@nod.at 2016-06-12T22:49:04+00:00 61edc3f3b51d2d3948029197cfff6fef7d94e939 Directly accessing inode fields bypasses ->getattr() and can cause problems when the underlying filesystem does not have the default ->getattr() implementation. So instead of obtaining the backing inode via d_backing_inode() use vfs_getattr() and obtain what we need from the kstat struct. Cc: Al Viro <viro@zeniv.linux.org.uk> Reported-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at> 
Directly accessing inode fields bypasses ->getattr()
and can cause problems when the underlying filesystem
does not have the default ->getattr() implementation.

So instead of obtaining the backing inode via d_backing_inode()
use vfs_getattr() and obtain what we need from the kstat struct.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Revert "mtd: switch ubi_open_volume_path() to vfs_stat()" 2016-06-14T08:51:42+00:00 Richard Weinberger richard@nod.at 2016-06-12T21:37:53+00:00 ad022c87187b50f50937bd9bcd1ef312442a89af This reverts commit 322ea0bbf3003df17b6253f76e572c37d79a6810. vfs_stat() can only be used on user supplied buffers. UBI's kapi.c is the API to the kernel and therefore vfs_stat() is inappropriate. This solves the problem that mounting any UBIFS will immediately fail with -EINVAL. Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at> 
This reverts commit 322ea0bbf3003df17b6253f76e572c37d79a6810.

vfs_stat() can only be used on user supplied buffers.
UBI's kapi.c is the API to the kernel and therefore vfs_stat()
is inappropriate.

This solves the problem that mounting any UBIFS will immediately
fail with -EINVAL.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Merge tag 'upstream-4.7-rc1' of git://git.infradead.org/linux-ubifs 2016-05-28T01:49:29+00:00 Linus Torvalds torvalds@linux-foundation.org 2016-05-28T01:49:29+00:00 23a3e178b9f8be3a900c7b11d795e54b4a131af0 Pull UBI/UBIFS updates from Richard Weinberger: "This contains mostly cleanups and minor improvements of UBI and UBIFS" * tag 'upstream-4.7-rc1' of git://git.infradead.org/linux-ubifs: ubifs: ubifs_dump_inode: Fix dumping field bulk_read UBI: Fix static volume checks when Fastmap is used UBI: Set free_count to zero before walking through erase list UBI: Silence an unintialized variable warning UBI: Clean up return in ubi_remove_volume() UBI: Modify wrong comment in ubi_leb_map function. UBI: Don't read back all data in ubi_eba_copy_leb() UBI: Add ro-mode sysfs attribute 
Pull UBI/UBIFS updates from Richard Weinberger:
 "This contains mostly cleanups and minor improvements of UBI and UBIFS"

* tag 'upstream-4.7-rc1' of git://git.infradead.org/linux-ubifs:
  ubifs: ubifs_dump_inode: Fix dumping field bulk_read
  UBI: Fix static volume checks when Fastmap is used
  UBI: Set free_count to zero before walking through erase list
  UBI: Silence an unintialized variable warning
  UBI: Clean up return in ubi_remove_volume()
  UBI: Modify wrong comment in ubi_leb_map function.
  UBI: Don't read back all data in ubi_eba_copy_leb()
  UBI: Add ro-mode sysfs attribute
UBI: Modify wrong comment in ubi_leb_map function. 2016-05-24T13:24:20+00:00 z00189512 abc.zhangliang@huawei.com 2016-03-29T18:41:19+00:00 960b35d06b6d6b377fd47a8a44e41a96f35ce485 Signed-off-by: z00189512 <abc.zhangliang@huawei.com> Signed-off-by: Richard Weinberger <richard@nod.at> 
Signed-off-by: z00189512 <abc.zhangliang@huawei.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
mtd: switch ubi_open_volume_path() to vfs_stat() 2016-03-28T03:49:17+00:00 Al Viro viro@zeniv.linux.org.uk 2016-03-24T18:47:18+00:00 322ea0bbf3003df17b6253f76e572c37d79a6810 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
VFS: assorted d_backing_inode() annotations 2015-04-15T19:06:59+00:00 David Howells dhowells@redhat.com 2015-03-17T22:26:21+00:00 bb668734c4c960c8f61f017585b323b97e5f47b5 Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
UBI: Add initial support for scatter gather 2015-01-28T15:04:26+00:00 Richard Weinberger richard@nod.at 2015-01-10T21:52:13+00:00 9ff08979e17423f0f691c1d76f35dfec72a5e459 Adds a new set of functions to deal with scatter gather. ubi_eba_read_leb_sg() will read from a LEB into a scatter gather list. The new data structure struct ubi_sgl will be used within UBI to hold the scatter gather list itself and metadata to have a cursor within the list. Signed-off-by: Richard Weinberger <richard@nod.at> Tested-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar> 
Adds a new set of functions to deal with scatter gather.
ubi_eba_read_leb_sg() will read from a LEB into a scatter gather list.
The new data structure struct ubi_sgl will be used within UBI to
hold the scatter gather list itself and metadata to have a cursor
within the list.

Signed-off-by: Richard Weinberger <richard@nod.at>
Tested-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
UBI: Implement UBI_METAONLY 2015-01-28T14:57:04+00:00 Richard Weinberger richard@nod.at 2014-11-24T21:30:09+00:00 fafdd2bf2638157670f28462b641150d16dbaeca UBI_METAONLY is a new open mode for UBI volumes, it indicates that only meta data is being changed. Meta data in terms of UBI volumes means data which is stored in the UBI volume table but not on the volume itself. While it does not interfere with UBI_READONLY and UBI_READWRITE it is not allowed to use UBI_METAONLY together with UBI_EXCLUSIVE. Cc: Ezequiel Garcia <ezequiel.garcia@free-electrons.com> Cc: Andrew Murray <amurray@embedded-bits.co.uk> Signed-off-by: Richard Weinberger <richard@nod.at> Tested-by: Guido Martínez <guido@vanguardiasur.com.ar> Reviewed-by: Guido Martínez <guido@vanguardiasur.com.ar> Tested-by: Christoph Fritz <chf.fritz@googlemail.com> Tested-by: Andrew Murray <amurray@embedded-bits.co.uk> 
UBI_METAONLY is a new open mode for UBI volumes, it indicates
that only meta data is being changed.
Meta data in terms of UBI volumes means data which is stored in the
UBI volume table but not on the volume itself.
While it does not interfere with UBI_READONLY and UBI_READWRITE
it is not allowed to use UBI_METAONLY together with UBI_EXCLUSIVE.

Cc: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Cc: Andrew Murray <amurray@embedded-bits.co.uk>
Signed-off-by: Richard Weinberger <richard@nod.at>
Tested-by: Guido Martínez <guido@vanguardiasur.com.ar>
Reviewed-by: Guido Martínez <guido@vanguardiasur.com.ar>
Tested-by: Christoph Fritz <chf.fritz@googlemail.com>
Tested-by: Andrew Murray <amurray@embedded-bits.co.uk>