linux-toradex.git/fs/logfs, branch v4.4.27

mm, fs: introduce mapping_gfp_constraint()

2015-11-07T01:50:42+00:00

There are many places which use mapping_gfp_mask to restrict a more
generic gfp mask which would be used for allocations which are not
directly related to the page cache but they are performed in the same
context.

Let's introduce a helper function which makes the restriction explicit and
easier to track.  This patch doesn't introduce any functional changes.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Michal Hocko 
Suggested-by: Andrew Morton 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

logfs: fix build warning

2015-11-06T03:34:48+00:00

fs/logfs/dev_bdev.c: In function '__bdev_writeseg':
include/linux/kernel.h:601:17: warning: comparison of distinct pointer types lacks a cast [enabled by default]
  (void) (&_min1 == &_min2);  \
fs/logfs/dev_bdev.c:84:14: note: in  expansion of macro 'min'
  max_pages = min(nr_pages, BIO_MAX_PAGES);

fs/logfs/dev_bdev.c: In function 'do_erase':
include/linux/kernel.h:601:17: warning: comparison of distinct pointer types lacks a cast [enabled by default]
 (void) (&_min1 == &_min2);  \
fs/logfs/dev_bdev.c:174:14: note: in expansion of macro 'min'
 max_pages = min(nr_pages, BIO_MAX_PAGES);

Lets use min_t and mention the type.

Signed-off-by: Sudip Mukherjee 
Cc: Joern Engel 
Cc: Prasad Joshi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

block: remove bio_get_nr_vecs()

2015-08-13T18:32:04+00:00

We can always fill up the bio now, no need to estimate the possible
size based on queue parameters.

Acked-by: Steven Whitehouse 
Signed-off-by: Kent Overstreet 
[hch: rebased and wrote a changelog]
Signed-off-by: Christoph Hellwig 
Signed-off-by: Ming Lin 
Signed-off-by: Jens Axboe

block: add a bi_error field to struct bio

2015-07-29T14:55:15+00:00

Currently we have two different ways to signal an I/O error on a BIO:

 (1) by clearing the BIO_UPTODATE flag
 (2) by returning a Linux errno value to the bi_end_io callback

The first one has the drawback of only communicating a single possible
error (-EIO), and the second one has the drawback of not beeing persistent
when bios are queued up, and are not passed along from child to parent
bio in the ever more popular chaining scenario.  Having both mechanisms
available has the additional drawback of utterly confusing driver authors
and introducing bugs where various I/O submitters only deal with one of
them, and the others have to add boilerplate code to deal with both kinds
of error returns.

So add a new bi_error field to store an errno value directly in struct
bio and remove the existing mechanisms to clean all this up.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Hannes Reinecke 
Reviewed-by: NeilBrown 
Signed-off-by: Jens Axboe

logfs: fix a pagecache leak for symlinks

2015-05-11T02:18:28+00:00

Signed-off-by: Al Viro

VFS: normal filesystems (and lustre): d_inode() annotations

2015-04-15T19:06:57+00:00

that's the bulk of filesystem drivers dealing with inodes of their own

Signed-off-by: David Howells 
Signed-off-by: Al Viro

make new_sync_{read,write}() static

2015-04-12T02:29:40+00:00

All places outside of core VFS that checked ->read and ->write for being NULL or
called the methods directly are gone now, so NULL {read,write} with non-NULL
{read,write}_iter will do the right thing in all cases.

Signed-off-by: Al Viro

fs/logfs/readwrite.c: kernel-doc warning fixes

2014-08-07T01:01:12+00:00

s/-/:/ and fix variable names.

Signed-off-by: Fabian Frederick 
Cc: Joern Engel 
Cc: Prasad Joshi 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

write_iter variants of {__,}generic_file_aio_write()

2014-05-06T21:38:00+00:00

Signed-off-by: Al Viro

switch simple generic_file_aio_read() users to ->read_iter()

2014-05-06T21:37:55+00:00

Signed-off-by: Al Viro