linux.git/fs/9p, branch v5.16

netfs, 9p, afs, ceph: Use folios

2021-11-10T21:16:56+00:00

Convert the netfs helper library to use folios throughout, convert the 9p
and afs filesystems to use folios in their file I/O paths and convert the
ceph filesystem to use just enough folios to compile.

With these changes, afs passes -g quick xfstests.

Changes
=======
ver #5:
 - Got rid of folio_end{io,_read,_write}() and inlined the stuff it does
   instead (Willy decided he didn't want this after all).

ver #4:
 - Fixed a bug in afs_redirty_page() whereby it didn't set the next page
   index in the loop and returned too early.
 - Simplified a check in v9fs_vfs_write_folio_locked()[1].
 - Undid a change to afs_symlink_readpage()[1].
 - Used offset_in_folio() in afs_write_end()[1].
 - Changed from using page_endio() to folio_end{io,_read,_write}()[1].

ver #2:
 - Add 9p foliation.

Signed-off-by: David Howells 
Reviewed-by: Jeff Layton 
Tested-by: Jeff Layton 
Tested-by: Dominique Martinet 
Tested-by: kafs-testing@auristor.com
cc: Matthew Wilcox (Oracle) 
cc: Marc Dionne 
cc: Ilya Dryomov 
cc: Dominique Martinet 
cc: v9fs-developer@lists.sourceforge.net
cc: linux-afs@lists.infradead.org
cc: ceph-devel@vger.kernel.org
cc: linux-cachefs@redhat.com
Link: https://lore.kernel.org/r/YYKa3bfQZxK5/wDN@casper.infradead.org/ [1]
Link: https://lore.kernel.org/r/2408234.1628687271@warthog.procyon.org.uk/ # rfc
Link: https://lore.kernel.org/r/162877311459.3085614.10601478228012245108.stgit@warthog.procyon.org.uk/
Link: https://lore.kernel.org/r/162981153551.1901565.3124454657133703341.stgit@warthog.procyon.org.uk/
Link: https://lore.kernel.org/r/163005745264.2472992.9852048135392188995.stgit@warthog.procyon.org.uk/ # v2
Link: https://lore.kernel.org/r/163584187452.4023316.500389675405550116.stgit@warthog.procyon.org.uk/ # v3
Link: https://lore.kernel.org/r/163649328026.309189.1124218109373941936.stgit@warthog.procyon.org.uk/ # v4
Link: https://lore.kernel.org/r/163657852454.834781.9265101983152100556.stgit@warthog.procyon.org.uk/ # v5

9p: fix a bunch of checkpatch warnings

2021-11-04T12:04:25+00:00

Sohaib Mohamed started a serie of tiny and incomplete checkpatch fixes but
seemingly stopped halfway -- take over and do most of it.
This is still missing net/9p/trans* and net/9p/protocol.c for a later
time...

Link: http://lkml.kernel.org/r/20211102134608.1588018-3-dominique.martinet@atmark-techno.com
Signed-off-by: Dominique Martinet

9p: set readahead and io size according to maxsize

2021-11-04T12:04:04+00:00

having a readahead of 128k with a msize of 128k (with overhead) lead to
reading 124+4k everytime, making two roundtrips needlessly.

tune readahead according to msize when cache is enabled for better
performance

Link: http://lkml.kernel.org/r/20211104120323.2189376-1-asmadeus@codewreck.org
Signed-off-by: Dominique Martinet

9p p9mode2perm: remove useless strlcpy and check sscanf return code

2021-11-03T08:45:04+00:00

This is also a checkpatch warning fix but this one might have implications
so keeping it separate

Link: http://lkml.kernel.org/r/20211102134608.1588018-5-dominique.martinet@atmark-techno.com
Signed-off-by: Dominique Martinet

9p v9fs_parse_options: replace simple_strtoul with kstrtouint

2021-11-03T08:45:04+00:00

This is also a checkpatch change, but this one might have more implications
so keeping this separate

Link: http://lkml.kernel.org/r/20211102134608.1588018-4-dominique.martinet@atmark-techno.com
Signed-off-by: Dominique Martinet

9p: fix file headers

2021-11-03T08:45:04+00:00

- add missing SPDX-License-Identifier
- remove (sometimes incorrect) file name from file header

Link: http://lkml.kernel.org/r/20211102134608.1588018-2-dominique.martinet@atmark-techno.com
Signed-off-by: Dominique Martinet

fs/9p: fix indentation and Add missing a blank line after declaration

2021-11-03T08:45:03+00:00

Warning found by checkpatch.pl

Link: http://lkml.kernel.org/r/20210930220420.44150-1-sohaib.amhmd@gmail.com
Signed-off-by: Sohaib Mohamed 
Signed-off-by: Dominique Martinet

fs/9p: fix warnings found by checkpatch.pl

2021-11-03T08:45:03+00:00

Link: http://lkml.kernel.org/r/20211001063444.102330-1-sohaib.amhmd@gmail.com
Signed-off-by: Sohaib Mohamed 
Signed-off-by: Dominique Martinet 
[Dominique: Fix the fixed indentation...]

9p: fix minor indentation and codestyle

2021-11-03T08:45:03+00:00

Warnings found by checkpatch.pl

Link: http://lkml.kernel.org/r/20210930235503.126033-1-sohaib.amhmd@gmail.com
Signed-off-by: Sohaib Mohamed 
Signed-off-by: Dominique Martinet

fs/9p: cleanup: opening brace at the beginning of the next line

2021-11-03T08:45:02+00:00

Error found by checkpatch.pl

Link: http://lkml.kernel.org/r/20211001062454.99205-1-sohaib.amhmd@gmail.com
Signed-off-by: Sohaib Mohamed 
Signed-off-by: Dominique Martinet