Merge tag 'v6.6.33' into dev-6.6

This is the 6.6.33 stable release

gfs2: Rename gfs2_withdrawn to gfs2_withdrawing_or_withdrawn

[ Upstream commit 4d927b03a68846e4e791ccde6b4c274df02f11e9 ]

This function checks whether the filesystem has been been marked to be
with

gfs2: Rename gfs2_withdrawn to gfs2_withdrawing_or_withdrawn

[ Upstream commit 4d927b03a68846e4e791ccde6b4c274df02f11e9 ]

This function checks whether the filesystem has been been marked to be
withdrawn eventually or has been withdrawn already. Rename this
function to avoid confusing code like checking for gfs2_withdrawing()
when gfs2_withdrawn() has already returned true.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Stable-dep-of: 9947a06d29c0 ("gfs2: do_xmote fixes")
Signed-off-by: Sasha Levin <sashal@kernel.org>

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gfs2: Mark withdraws as unlikely

[ Upstream commit 015af1af44003fff797f8632e940824c07d282bf ]

Mark the gfs2_withdrawn(), gfs2_withdrawing(), and
gfs2_withdraw_in_prog() inline functions as likely t

gfs2: Mark withdraws as unlikely

[ Upstream commit 015af1af44003fff797f8632e940824c07d282bf ]

Mark the gfs2_withdrawn(), gfs2_withdrawing(), and
gfs2_withdraw_in_prog() inline functions as likely to return %false.
This allows to get rid of likely() and unlikely() annotations at the
call sites of those functions.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Stable-dep-of: 9947a06d29c0 ("gfs2: do_xmote fixes")
Signed-off-by: Sasha Levin <sashal@kernel.org>

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gfs2: Convert gfs2_internal_read to folios

[ Upstream commit be7f6a6b0bca708999eef4f8e9f2b128c73b9e17 ]

Change gfs2_internal_read() to use folios. Convert sizes to size_t.

Signed-off-by: Andreas

gfs2: Convert gfs2_internal_read to folios

[ Upstream commit be7f6a6b0bca708999eef4f8e9f2b128c73b9e17 ]

Change gfs2_internal_read() to use folios. Convert sizes to size_t.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Stable-dep-of: d98779e68772 ("gfs2: Fix potential glock use-after-free on unmount")
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Merge drm/drm-fixes into drm-misc-fixes

Forwarding to v6.6-rc1.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

Merge tag 'gfs2-v6.5-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 updates from Andreas Gruenbacher:

- Fix a glock state (non-)transition bug when a dlm req

Merge tag 'gfs2-v6.5-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 updates from Andreas Gruenbacher:

- Fix a glock state (non-)transition bug when a dlm request times out
and is canceled, and we have locking requests that can now be granted
immediately

- Various fixes and cleanups in how the logd and quotad daemons are
woken up and terminated

- Fix several bugs in the quota data reference counting and shrinking.
Free quota data objects synchronously in put_super() instead of
letting call_rcu() run wild

- Make sure not to deallocate quota data during a withdraw; rather,
defer quota data deallocation to put_super(). Withdraws can happen in
contexts in which callers on the stack are holding quota data
references

- Many minor quota fixes and cleanups by Bob

- Update the the mailing list address for gfs2 and dlm. (It's the same
list for both and we are moving it to gfs2@lists.linux.dev)

- Various other minor cleanups

* tag 'gfs2-v6.5-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (51 commits)
MAINTAINERS: Update dlm mailing list
MAINTAINERS: Update gfs2 mailing list
gfs2: change qd_slot_count to qd_slot_ref
gfs2: check for no eligible quota changes
gfs2: Remove useless assignment
gfs2: simplify slot_get
gfs2: Simplify qd2offset
gfs2: introduce qd_bh_get_or_undo
gfs2: Remove quota allocation info from quota file
gfs2: use constant for array size
gfs2: Set qd_sync_gen in do_sync
gfs2: Remove useless err set
gfs2: Small gfs2_quota_lock cleanup
gfs2: move qdsb_put and reduce redundancy
gfs2: improvements to sysfs status
gfs2: Don't try to sync non-changes
gfs2: Simplify function need_sync
gfs2: remove unneeded pg_oflow variable
gfs2: remove unneeded variable done
gfs2: pass sdp to gfs2_write_buf_to_page
...

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gfs2: low-memory forced flush fixes

First, function gfs2_ail_flush_reqd checks the SDF_FORCE_AIL_FLUSH flag
to determine if an AIL flush should be forced in low-memory situations.
However, it also i

gfs2: low-memory forced flush fixes

First, function gfs2_ail_flush_reqd checks the SDF_FORCE_AIL_FLUSH flag
to determine if an AIL flush should be forced in low-memory situations.
However, it also immediately clears the flag, and when called repeatedly
as in function gfs2_logd, the flag will be lost. Fix that by pulling
the SDF_FORCE_AIL_FLUSH flag check out of gfs2_ail_flush_reqd.

Second, function gfs2_writepages sets the SDF_FORCE_AIL_FLUSH flag
whether or not enough pages were written. If enough pages could be
written, flushing the AIL is unnecessary, though.

Third, gfs2_writepages doesn't wake up logd after setting the
SDF_FORCE_AIL_FLUSH flag, so it can take a long time for logd to react.
It would be preferable to wake up logd, but that hurts the performance
of some workloads and we don't quite understand why so far, so don't
wake up logd so far.

Fixes: b066a4eebd4f ("gfs2: forcibly flush ail to relieve memory pressure")
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

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gfs2: increase usage of folio_next_index() helper

Simplify code pattern of 'folio->index + folio_nr_pages(folio)' by using
the existing helper folio_next_index().

Signed-off-by: Minjie Du <duminjie

gfs2: increase usage of folio_next_index() helper

Simplify code pattern of 'folio->index + folio_nr_pages(folio)' by using
the existing helper folio_next_index().

Signed-off-by: Minjie Du <duminjie@vivo.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

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Merge tag 'iomap-6.6-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull iomap updates from Darrick Wong:
"We've got some big changes for this release -- I'm very happy to be
landing w

Merge tag 'iomap-6.6-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull iomap updates from Darrick Wong:
"We've got some big changes for this release -- I'm very happy to be
landing willy's work to enable large folios for the page cache for
general read and write IOs when the fs can make contiguous space
allocations, and Ritesh's work to track sub-folio dirty state to
eliminate the write amplification problems inherent in using large
folios.

As a bonus, io_uring can now process write completions in the caller's
context instead of bouncing through a workqueue, which should reduce
io latency dramatically. IOWs, XFS should see a nice performance bump
for both IO paths.

Summary:

- Make large writes to the page cache fill sparse parts of the cache
with large folios, then use large memcpy calls for the large folio.

- Track the per-block dirty state of each large folio so that a
buffered write to a single byte on a large folio does not result in
a (potentially) multi-megabyte writeback IO.

- Allow some directio completions to be performed in the initiating
task's context instead of punting through a workqueue. This will
reduce latency for some io_uring requests"

* tag 'iomap-6.6-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (26 commits)
iomap: support IOCB_DIO_CALLER_COMP
io_uring/rw: add write support for IOCB_DIO_CALLER_COMP
fs: add IOCB flags related to passing back dio completions
iomap: add IOMAP_DIO_INLINE_COMP
iomap: only set iocb->private for polled bio
iomap: treat a write through cache the same as FUA
iomap: use an unsigned type for IOMAP_DIO_* defines
iomap: cleanup up iomap_dio_bio_end_io()
iomap: Add per-block dirty state tracking to improve performance
iomap: Allocate ifs in ->write_begin() early
iomap: Refactor iomap_write_delalloc_punch() function out
iomap: Use iomap_punch_t typedef
iomap: Fix possible overflow condition in iomap_write_delalloc_scan
iomap: Add some uptodate state handling helpers for ifs state bitmap
iomap: Drop ifs argument from iomap_set_range_uptodate()
iomap: Rename iomap_page to iomap_folio_state and others
iomap: Copy larger chunks from userspace
iomap: Create large folios in the buffered write path
filemap: Allow __filemap_get_folio to allocate large folios
filemap: Add fgf_t typedef
...

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Merge drm/drm-next into drm-intel-next

Catching-up with drm-next and drm-intel-gt-next.
It will unblock a code refactor around the platform
definitions (names vs acronyms).

Signed-off-by: Rodrigo V

Merge drm/drm-next into drm-intel-next

Catching-up with drm-next and drm-intel-gt-next.
It will unblock a code refactor around the platform
definitions (names vs acronyms).

Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

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Merge drm/drm-next into drm-intel-gt-next

Need to pull in b3e4aae612ec ("drm/i915/hdcp: Modify hdcp_gsc_message msg sending mechanism") as
a dependency for https://patchwork.freedesktop.org/series/1

Merge drm/drm-next into drm-intel-gt-next

Need to pull in b3e4aae612ec ("drm/i915/hdcp: Modify hdcp_gsc_message msg sending mechanism") as
a dependency for https://patchwork.freedesktop.org/series/121735/

Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>

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Merge tag 'iomap-per-block-dirty-tracking' of https://github.com/riteshharjani/linux into iomap-6.6-merge

iomap: Add per-block dirty state tracking to iomap

iomap today only tracks per-block update

Merge tag 'iomap-per-block-dirty-tracking' of https://github.com/riteshharjani/linux into iomap-6.6-merge

iomap: Add per-block dirty state tracking to iomap

iomap today only tracks per-block update state bitmap, this series extends
the support by adding per-block dirty state bitmap tracking to iomap buffered
I/O path. This helps in reducing the write amplification and improve
write performance for large folio writes and for platforms with higher
pagesize compared to blocksize.

We have seen ~83% performance improvement with these patches using
database benchmarking tests, with XFS on 64k pagesize.
fio benchmark (as shown in the last patch which adds dirty tracking
support) showed close to 16x performance improvement when tested with
64K pagesize on 4k blocksize XFS using nvme on Power.

* tag 'iomap-per-block-dirty-tracking' of https://github.com/riteshharjani/linux:
iomap: Add per-block dirty state tracking to improve performance
iomap: Allocate ifs in ->write_begin() early
iomap: Refactor iomap_write_delalloc_punch() function out
iomap: Use iomap_punch_t typedef
iomap: Fix possible overflow condition in iomap_write_delalloc_scan
iomap: Add some uptodate state handling helpers for ifs state bitmap
iomap: Drop ifs argument from iomap_set_range_uptodate()
iomap: Rename iomap_page to iomap_folio_state and others

[djwong: also yay to less write amplification!]

Signed-off-by: Darrick J. Wong <djwong@kernel.org>

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iomap: Add per-block dirty state tracking to improve performance

When filesystem blocksize is less than folio size (either with
mapping_large_folio_support() or with blocksize < pagesize) and when t

iomap: Add per-block dirty state tracking to improve performance

When filesystem blocksize is less than folio size (either with
mapping_large_folio_support() or with blocksize < pagesize) and when the
folio is uptodate in pagecache, then even a byte write can cause
an entire folio to be written to disk during writeback. This happens
because we currently don't have a mechanism to track per-block dirty
state within struct iomap_folio_state. We currently only track uptodate
state.

This patch implements support for tracking per-block dirty state in
iomap_folio_state->state bitmap. This should help improve the filesystem
write performance and help reduce write amplification.

Performance testing of below fio workload reveals ~16x performance
improvement using nvme with XFS (4k blocksize) on Power (64K pagesize)
FIO reported write bw scores improved from around ~28 MBps to ~452 MBps.

1. <test_randwrite.fio>
[global]
ioengine=psync
rw=randwrite
overwrite=1
pre_read=1
direct=0
bs=4k
size=1G
dir=./
numjobs=8
fdatasync=1
runtime=60
iodepth=64
group_reporting=1

[fio-run]

2. Also our internal performance team reported that this patch improves
their database workload performance by around ~83% (with XFS on Power)

Reported-by: Aravinda Herle <araherle@in.ibm.com>
Reported-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>

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Merge drm/drm-next into drm-misc-next

Backmerging to get v6.5-rc2.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>

ASoC: Merge v6.5-rc2

Get a similar baseline to my other branches, and fixes for people using
the branch.

Merge v6.5-rc1 into drm-misc-fixes

Boris needs 6.5-rc1 in drm-misc-fixes to prevent a conflict.

Signed-off-by: Maxime Ripard <mripard@kernel.org>

Merge tag 'gfs2-v6.4-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 updates from Andreas Gruenbacher:

- Move the freeze/thaw logic from glock callback contex

Merge tag 'gfs2-v6.4-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 updates from Andreas Gruenbacher:

- Move the freeze/thaw logic from glock callback context to process /
worker thread context to prevent deadlocks

- Fix a quota reference couting bug in do_qc()

- Carry on deallocating inodes even when gfs2_rindex_update() fails

- Retry filesystem-internal reads when they are interruped by a signal

- Eliminate kmap_atomic() in favor of kmap_local_page() /
memcpy_{from,to}_page()

- Get rid of noop_direct_IO

- And a few more minor fixes and cleanups

* tag 'gfs2-v6.4-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2: (23 commits)
gfs2: Add quota_change type
gfs2: Use memcpy_{from,to}_page where appropriate
gfs2: Convert remaining kmap_atomic calls to kmap_local_page
gfs2: Replace deprecated kmap_atomic with kmap_local_page
gfs: Get rid of unnucessary locking in inode_go_dump
gfs2: gfs2_freeze_lock_shared cleanup
gfs2: Replace sd_freeze_state with SDF_FROZEN flag
gfs2: Rework freeze / thaw logic
gfs2: Rename SDF_{FS_FROZEN => FREEZE_INITIATOR}
gfs2: Reconfiguring frozen filesystem already rejected
gfs2: Rename gfs2_freeze_lock{ => _shared }
gfs2: Rename the {freeze,thaw}_super callbacks
gfs2: Rename remaining "transaction" glock references
gfs2: retry interrupted internal reads
gfs2: Fix possible data races in gfs2_show_options()
gfs2: Fix duplicate should_fault_in_pages() call
gfs2: set FMODE_CAN_ODIRECT instead of a dummy direct_IO method
gfs2: Don't remember delete unless it's successful
gfs2: Update rl_unlinked before releasing rgrp lock
gfs2: Fix gfs2_qa_get imbalance in gfs2_quota_hold
...

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gfs2: Use memcpy_{from,to}_page where appropriate

Replace kmap_local_page() + memcpy() + kunmap_local() sequences with
memcpy_{from,to}_page() where we are not doing anything else with the
mapped pa

gfs2: Use memcpy_{from,to}_page where appropriate

Replace kmap_local_page() + memcpy() + kunmap_local() sequences with
memcpy_{from,to}_page() where we are not doing anything else with the
mapped page.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

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gfs2: Replace deprecated kmap_atomic with kmap_local_page

kmap_atomic() is deprecated in favor of kmap_local_{folio,page}().

Therefore, replace kmap_atomic() with kmap_local_page() in
gfs2_internal

gfs2: Replace deprecated kmap_atomic with kmap_local_page

kmap_atomic() is deprecated in favor of kmap_local_{folio,page}().

Therefore, replace kmap_atomic() with kmap_local_page() in
gfs2_internal_read() and stuffed_readpage().

kmap_atomic() disables page-faults and preemption (the latter only for
!PREEMPT_RT kernels), However, the code within the mapping/un-mapping in
gfs2_internal_read() and stuffed_readpage() does not depend on the
above-mentioned side effects.

Therefore, a mere replacement of the old API with the new one is all that
is required (i.e., there is no need to explicitly add any calls to
pagefault_disable() and/or preempt_disable()).

Signed-off-by: Deepak R Varma <drv@mailo.com>
Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>

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Merge branch 'master' into mm-hotfixes-stable

Merge tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull mm updates from Andrew Morton:

- Yosry Ahmed brought back some cgroup v1 stats in OOM logs

-

Merge tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull mm updates from Andrew Morton:

- Yosry Ahmed brought back some cgroup v1 stats in OOM logs

- Yosry has also eliminated cgroup's atomic rstat flushing

- Nhat Pham adds the new cachestat() syscall. It provides userspace
with the ability to query pagecache status - a similar concept to
mincore() but more powerful and with improved usability

- Mel Gorman provides more optimizations for compaction, reducing the
prevalence of page rescanning

- Lorenzo Stoakes has done some maintanance work on the
get_user_pages() interface

- Liam Howlett continues with cleanups and maintenance work to the
maple tree code. Peng Zhang also does some work on maple tree

- Johannes Weiner has done some cleanup work on the compaction code

- David Hildenbrand has contributed additional selftests for
get_user_pages()

- Thomas Gleixner has contributed some maintenance and optimization
work for the vmalloc code

- Baolin Wang has provided some compaction cleanups,

- SeongJae Park continues maintenance work on the DAMON code

- Huang Ying has done some maintenance on the swap code's usage of
device refcounting

- Christoph Hellwig has some cleanups for the filemap/directio code

- Ryan Roberts provides two patch series which yield some
rationalization of the kernel's access to pte entries - use the
provided APIs rather than open-coding accesses

- Lorenzo Stoakes has some fixes to the interaction between pagecache
and directio access to file mappings

- John Hubbard has a series of fixes to the MM selftesting code

- ZhangPeng continues the folio conversion campaign

- Hugh Dickins has been working on the pagetable handling code, mainly
with a view to reducing the load on the mmap_lock

- Catalin Marinas has reduced the arm64 kmalloc() minimum alignment
from 128 to 8

- Domenico Cerasuolo has improved the zswap reclaim mechanism by
reorganizing the LRU management

- Matthew Wilcox provides some fixups to make gfs2 work better with the
buffer_head code

- Vishal Moola also has done some folio conversion work

- Matthew Wilcox has removed the remnants of the pagevec code - their
functionality is migrated over to struct folio_batch

* tag 'mm-stable-2023-06-24-19-15' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (380 commits)
mm/hugetlb: remove hugetlb_set_page_subpool()
mm: nommu: correct the range of mmap_sem_read_lock in task_mem()
hugetlb: revert use of page_cache_next_miss()
Revert "page cache: fix page_cache_next/prev_miss off by one"
mm/vmscan: fix root proactive reclaim unthrottling unbalanced node
mm: memcg: rename and document global_reclaim()
mm: kill [add|del]_page_to_lru_list()
mm: compaction: convert to use a folio in isolate_migratepages_block()
mm: zswap: fix double invalidate with exclusive loads
mm: remove unnecessary pagevec includes
mm: remove references to pagevec
mm: rename invalidate_mapping_pagevec to mapping_try_invalidate
mm: remove struct pagevec
net: convert sunrpc from pagevec to folio_batch
i915: convert i915_gpu_error to use a folio_batch
pagevec: rename fbatch_count()
mm: remove check_move_unevictable_pages()
drm: convert drm_gem_put_pages() to use a folio_batch
i915: convert shmem_sg_free_table() to use a folio_batch
scatterlist: add sg_set_folio()
...

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gfs2: support ludicrously large folios in gfs2_trans_add_databufs()

We may someday support folios larger than 4GB, so use a size_t for the
byte count within a folio to prevent unpleasant truncations

gfs2: support ludicrously large folios in gfs2_trans_add_databufs()

We may someday support folios larger than 4GB, so use a size_t for the
byte count within a folio to prevent unpleasant truncations.

Link: https://lkml.kernel.org/r/20230612210141.730128-6-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Bob Peterson <rpeterso@redhat.com>
Reviewed-by: Bob Peterson <rpeterso@redhat.com>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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buffer: convert __block_write_full_page() to __block_write_full_folio()

Remove nine hidden calls to compound_head() by using a folio instead of a
page.

Link: https://lkml.kernel.org/r/2023061221014

buffer: convert __block_write_full_page() to __block_write_full_folio()

Remove nine hidden calls to compound_head() by using a folio instead of a
page.

Link: https://lkml.kernel.org/r/20230612210141.730128-5-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Bob Peterson <rpeterso@redhat.com>
Reviewed-by: Bob Peterson <rpeterso@redhat.com>
Cc: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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gfs2: convert gfs2_write_jdata_page() to gfs2_write_jdata_folio()

Add support for large folios and remove some accesses to page->mapping and
page->index.

Link: https://lkml.kernel.org/r/20230612210

gfs2: convert gfs2_write_jdata_page() to gfs2_write_jdata_folio()

Add support for large folios and remove some accesses to page->mapping and
page->index.

Link: https://lkml.kernel.org/r/20230612210141.730128-4-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Bob Peterson <rpeterso@redhat.com>
Reviewed-by: Bob Peterson <rpeterso@redhat.com>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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gfs2: pass a folio to __gfs2_jdata_write_folio()

Remove a couple of folio->page conversions in the callers, and two calls
to compound_head() in the function itself. Rename it from
__gfs2_jdata_writ

gfs2: pass a folio to __gfs2_jdata_write_folio()

Remove a couple of folio->page conversions in the callers, and two calls
to compound_head() in the function itself. Rename it from
__gfs2_jdata_writepage() to __gfs2_jdata_write_folio().

Link: https://lkml.kernel.org/r/20230612210141.730128-3-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Bob Peterson <rpeterso@redhat.com>
Reviewed-by: Bob Peterson <rpeterso@redhat.com>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
Cc: Hannes Reinecke <hare@suse.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

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