linux-toradex.git/mm/backing-dev.c, branch v5.11-rc5

mm:backing-dev: use sysfs_emit in macro defining functions

2020-12-15T20:13:47+00:00

The cocci script used in commit bdacbb8d04f ("mm: Use sysfs_emit for
struct kobject * uses") does not convert the name##_show macro because the
macro uses concatenation via ##.

Convert it by hand.

Link: https://lkml.kernel.org/r/45ec6cfc177d743f9c0ebaf35e43969dce43af42.1605376435.git.joe@perches.com
Signed-off-by: Joe Perches 
Cc: Christoph Lameter 
Cc: David Rientjes 
Cc: Greg Kroah-Hartman 
Cc: Hugh Dickins 
Cc: Joonsoo Kim 
Cc: Matthew Wilcox 
Cc: Mike Kravetz 
Cc: Pekka Enberg 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

bdi: replace BDI_CAP_NO_{WRITEBACK,ACCT_DIRTY} with a single flag

2020-09-24T19:43:39+00:00

Replace the two negative flags that are always used together with a
single positive flag that indicates the writeback capability instead
of two related non-capabilities.  Also remove the pointless wrappers
to just check the flag.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Reviewed-by: Johannes Thumshirn 
Signed-off-by: Jens Axboe

bdi: invert BDI_CAP_NO_ACCT_WB

2020-09-24T19:43:39+00:00

Replace BDI_CAP_NO_ACCT_WB with a positive BDI_CAP_WRITEBACK_ACCT to
make the checks more obvious.  Also remove the pointless
bdi_cap_account_writeback wrapper that just obsfucates the check.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Reviewed-by: Johannes Thumshirn 
Signed-off-by: Jens Axboe

bdi: replace BDI_CAP_STABLE_WRITES with a queue and a sb flag

2020-09-24T19:43:39+00:00

The BDI_CAP_STABLE_WRITES is one of the few bits of information in the
backing_dev_info shared between the block drivers and the writeback code.
To help untangling the dependency replace it with a queue flag and a
superblock flag derived from it.  This also helps with the case of e.g.
a file system requiring stable writes due to its own checksumming, but
not forcing it on other users of the block device like the swap code.

One downside is that we an't support the stable_pages_required bdi
attribute in sysfs anymore.  It is replaced with a queue attribute which
also is writable for easier testing.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Reviewed-by: Johannes Thumshirn 
Signed-off-by: Jens Axboe

bdi: initialize ->ra_pages and ->io_pages in bdi_init

2020-09-24T19:43:39+00:00

Set up a readahead size by default, as very few users have a good
reason to change it.  This means code, ecryptfs, and orangefs now
set up the values while they were previously missing it, while ubifs,
mtd and vboxsf manually set it to 0 to avoid readahead.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Acked-by: David Sterba  [btrfs]
Acked-by: Richard Weinberger  [ubifs, mtd]
Signed-off-by: Jens Axboe

writeback: remove struct bdi_writeback_congested

2020-07-08T23:05:53+00:00

We never set any congested bits in the group writeback instances of it.
And for the simpler bdi-wide case a simple scalar field is all that
that is needed.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Jens Axboe

writeback: remove {set,clear}_wb_congested

2020-07-08T23:05:53+00:00

Just merge them into their only callers.

Signed-off-by: Christoph Hellwig 
Signed-off-by: Jens Axboe

bdi: remove the name field in struct backing_dev_info

2020-05-09T22:15:13+00:00

The name is only printed for a not registered bdi in writeback.  Use the
device name there as is more useful anyway for the unlike case that the
warning triggers.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Reviewed-by: Greg Kroah-Hartman 
Reviewed-by: Bart Van Assche 
Signed-off-by: Jens Axboe

bdi: simplify bdi_alloc

2020-05-09T22:15:13+00:00

Merge the _node vs normal version and drop the superflous gfp_t argument.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Reviewed-by: Greg Kroah-Hartman 
Reviewed-by: Bart Van Assche 
Signed-off-by: Jens Axboe

bdi: remove bdi_register_owner

2020-05-09T22:15:13+00:00

Split out a new bdi_set_owner helper to set the owner, and move the policy
for creating the bdi name back into genhd.c, where it belongs.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Jan Kara 
Reviewed-by: Greg Kroah-Hartman 
Reviewed-by: Bart Van Assche 
Signed-off-by: Jens Axboe