Commit Graph

10 Commits

Author SHA1 Message Date
Thomas Gleixner 50acfb2b76 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 286
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation version 2 this program is distributed
  in the hope that it will be useful but without any warranty without
  even the implied warranty of merchantability or fitness for a
  particular purpose see the gnu general public license for more
  details

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 97 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190529141901.025053186@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:36:37 +02:00
Richard Weinberger 29b7a6fa1e ubi: fastmap: Don't flush fastmap work on detach
At this point UBI volumes have already been free()'ed and fastmap can no
longer access these data structures.

Reported-by: Martin Townsend <mtownsend1973@gmail.com>
Fixes: 74cdaf2400 ("UBI: Fastmap: Fix memory leaks while closing the WL sub-system")
Cc: stable@vger.kernel.org
Signed-off-by: Richard Weinberger <richard@nod.at>
2018-04-04 23:41:44 +02:00
Sascha Hauer 889027bca2 ubi: Fastmap: Fix typo
Fix misspelling of 'available' in function name.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Richard Weinberger <richard@nod.at>
2018-01-18 00:18:50 +01:00
Richard Weinberger 2e8f08deab ubi: Fix races around ubi_refill_pools()
When writing a new Fastmap the first thing that happens
is refilling the pools in memory.
At this stage it is possible that new PEBs from the new pools
get already claimed and written with data.
If this happens before the new Fastmap data structure hits the
flash and we face power cut the freshly written PEB will not
scanned and unnoticed.

Solve the issue by locking the pools until Fastmap is written.

Cc: <stable@vger.kernel.org>
Fixes: dbb7d2a88d ("UBI: Add fastmap core")
Signed-off-by: Richard Weinberger <richard@nod.at>
2016-10-02 22:54:01 +02:00
Richard Weinberger 1cb8f9776c ubi: fastmap: Implement produce_free_peb()
If fastmap requests a free PEB for a pool and UBI is busy
with erasing PEBs we need to offer a function to wait for one.
We can reuse produce_free_peb() from the non-fastmap WL code
but with different locking semantics.

Cc: stable@vger.kernel.org # 4.1.x-
Reported-and-tested-by: Jörg Krause <joerg.krause@embedded.rocks>
Signed-off-by: Richard Weinberger <richard@nod.at>
2015-10-03 23:25:30 +02:00
Richard Weinberger 56794c0a1a UBI: Fastmap: Remove is_fm_block()
This function was added to fastmap in a very early stage
to have paranoid assertions.
With the current fastmap implementation this assert will never
trigger as fastmap PEBs are not seen by the WL sub-system.
Remove it to save us some CPU cycles.

Signed-off-by: Richard Weinberger <richard@nod.at>
2015-03-26 22:47:38 +01:00
Richard Weinberger 1841fcfd91 UBI: Fastmap: Add blank line after declarations
Another checkpatch complaint:
WARNING: Missing a blank line after declarations

Signed-off-by: Richard Weinberger <richard@nod.at>
2015-03-26 22:47:37 +01:00
Richard Weinberger e1bc37ceaf UBI: Fastmap: Remove else after return.
checkpatch.pl complains:
WARNING: else is not generally useful after a break or return

Signed-off-by: Richard Weinberger <richard@nod.at>
2015-03-26 22:47:37 +01:00
Richard Weinberger 2f84c2469e UBI: Fastmap: Introduce may_reserve_for_fm()
...and kill another #ifdef.

Signed-off-by: Richard Weinberger <richard@nod.at>
2015-03-26 22:47:36 +01:00
Richard Weinberger 78d6d497a6 UBI: Move fastmap specific functions out of wl.c
Fastmap is tightly connected to the WL sub-system, many fastmap-specific
functionslive in wl.c.
To get rid of most #ifdefs in wl.c move this functions into a new file
and include it into wl.c

Signed-off-by: Richard Weinberger <richard@nod.at>
2015-03-26 22:47:28 +01:00