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Track metadata bhs for an inode in fs-private part of the inode.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-76-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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As part of transition toward moving mapping_metadata_bhs to fs-private
part of the inode, provide functions for operations on this list
directly instead of going through the inode / mapping.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-75-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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As part of a move towards placing mapping_metadata_bhs in fs-private
inode part, switch inode_has_buffers() to take mapping_metadata_bhs
and rename the function to mmb_has_buffers().
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-74-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Make buffer heads point to mapping_metadata_bhs instead of struct
address_space. This makes the code more self contained. For the (only)
case of IO error handling where we really need to reach struct
address_space add a pointer to the mapping from mapping_metadata_bhs.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-73-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Instead of tracking metadata bhs for a mapping using i_private_list and
i_private_lock create a dedicated mapping_metadata_bhs struct for it.
So far this struct is embedded in address_space but that will be
switched for per-fs private inode parts later in the series. This also
changes the locking from bdev mapping's i_private_lock to a new lock
embedded in mapping_metadata_bhs to untangle the i_private_lock locking
for maintaining lists of metadata bhs and the locking for looking up /
reclaiming bdev's buffer heads. The locking in remove_assoc_map() gets
more complex due to this but overall this looks like a reasonable
tradeoff.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-72-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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There's only single caller of fsync_buffers_list() so untangle the code
a bit by folding fsync_buffers_list() into sync_mapping_buffers(). Also
merge the comments and update them to reflect current state of code.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-71-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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The function only waits for already locked buffers in the list of
metadata bhs. fsync_buffers_list() has just waited for all outstanding
IO on buffers so this isn't adding anything useful. Comment in front of
fsync_buffers_list() mentions concerns about buffers being moved out
from tmp list back to mappings i_private_list but these days
mark_buffer_dirty_inode() doesn't touch inodes with b_assoc_map set so
that cannot happen. Just delete the stale code.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-70-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Instead of using mapping->i_private_list use a list in private part of
the inode.
CC: kvm@vger.kernel.org
CC: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-69-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Nobody is using it anymore.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-68-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Instead of using i_private_data and i_private_lock, just create aio
inodes with appropriate necessary fields.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-67-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Instead of using i_private_data for resv_map pointer add the pointer
into hugetlbfs private part of the inode.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-66-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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All filesystem using generic metadata bh tracking are using bdev mapping
as a backing for these bhs. Stop using i_private_data for it and get to
bdev mapping directly.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-65-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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There are only a few filesystems that use generic tracking of inode
metadata buffer heads. As such the logic to reclaim tracked metadata
buffer heads in inode_lru_isolate() doesn't bring a benefit big enough
to justify intertwining of inode reclaim and metadata buffer head
tracking. Just treat tracked metadata buffer heads as any other metadata
filesystem has to properly clean up on inode eviction and stop handling
it in inode_lru_isolate(). As a result filesystems using generic
tracking of metadata buffer heads may now see dirty metadata buffers in
their .evict methods more often which can slow down inode reclaim but
given these filesystems aren't used in performance demanding setups we
should be fine.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-64-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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There are only very few filesystems using generic metadata buffer head
tracking and everybody is paying the overhead. When we remove this
tracking for inode reclaim code .evict will start to see inodes with
metadata buffers attached so write them out and prune them.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-63-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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There are only very few filesystems using generic metadata buffer head
tracking and everybody is paying the overhead. When we remove this
tracking for inode reclaim code .evict will start to see inodes with
metadata buffers attached so write them out and prune them.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-62-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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There are only very few filesystems using generic metadata buffer head
tracking and everybody is paying the overhead. When we remove this
tracking for inode reclaim code .evict will start to see inodes with
metadata buffers attached so write them out and prune them.
Acked-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-61-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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There are only very few filesystems using generic metadata buffer head
tracking and everybody is paying the overhead. When we remove this
tracking for inode reclaim code .evict will start to see inodes with
metadata buffers attached so write them out and prune them.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-60-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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There are only very few filesystems using generic metadata buffer head
tracking and everybody is paying the overhead. When we remove this
tracking for inode reclaim code .evict will start to see inodes with
metadata buffers attached so write them out and prune them.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-59-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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There are only very few filesystems using generic metadata buffer head
tracking and everybody is paying the overhead. When we remove this
tracking for inode reclaim code .evict will start to see inodes with
metadata buffers attached so write them out and prune them.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-58-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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There are only very few filesystems using generic metadata buffer head
tracking and everybody is paying the overhead. When we remove this
tracking for inode reclaim code .evict will start to see inodes with
metadata buffers attached so write them out and prune them.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-57-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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The implementation is now really basic so rename generic_file_fsync()
simple_fsync() and __generic_file_fsync() to simple_fsync_noflush().
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-56-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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No filesystem calling __generic_file_fsync() uses metadata bh tracking.
Drop sync_mapping_buffers() call from __generic_file_fsync() as it's
pointless now which untangles buffer head handling from fs/libfs.c.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-55-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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FAT uses a list of metadata bhs attached to an inode. Switch it to use
generic_buffers_fsync_noflush() instead of __generic_file_fsync() as
we'll be removing metadata bh handling from __generic_file_fsync().
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-54-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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BFS uses list of metadata bhs attached to an inode. Switch it to use
generic_buffers_fsync() instead of generic_file_fsync() as we'll be
removing metadata bh handling from generic_file_fsync().
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-53-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Minix uses list of metadata bhs attached to an inode. Switch it to
generic_buffers_fsync() instead of generic_file_fsync() as we'll be
removing metadata bh handling from generic_file_fsync().
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-52-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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UDF uses metadata bh list attached to inode. Switch it to
generic_buffers_fsync() instead of generic_file_fsync() as we'll be
removing metadata bh handling from generic_file_fsync().
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-51-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Inode lock in __generic_file_fsync() protects sync_mapping_buffers() and
sync_inode_metadata() calls. Neither sync_mapping_buffers() nor
sync_inode_metadata() themselves need the protection by inode_lock and
both metadata buffer head writeback and inode writeback can happen
without inode lock (either in case of background writeback or sync(2)
calls). The only protection inode_lock can possibly provide is that
write(2) or other inode modifying calls cannot happen in the middle of
bh+inode writeout and thus result in writeout of inconsistent metadata.
However if writes and fsyncs race, background writeback can submit
inconsistent metadata just after fsync completed even with inode_lock
protecting fsync so this seems moot as well. So let's remove the
apparently pointless inode_lock protection.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-50-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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EXFAT never calls mark_buffer_dirty_inode() and thus
invalidate_inode_buffers() never has anything to evict. Drop the
pointless call.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-49-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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UFS doesn't call mark_buffer_dirty_inode() and thus
invalidate_mapping_buffers() never has anything to drop. Remove the
pointless call.
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-48-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Nobody is calling mark_buffer_dirty_inode() with internal bdev inode and
it doesn't make sense for internal bdev inode to have any metadata
buffer heads. Just drop the pointless invalidate_inode_buffers() call
and consequently the whole bdev_evict_inode() because generic code takes
care of the rest.
CC: linux-block@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-47-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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ocfs2 never calls mark_buffer_dirty_inode() and thus its metadata
buffers list is always empty. Drop the pointless sync_mapping_buffers()
calls.
CC: Joel Becker <jlbec@evilplan.org>
CC: Joseph Qi <joseph.qi@linux.alibaba.com>
CC: ocfs2-devel@lists.linux.dev
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-46-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Reviewed-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Signed-off-by: Christian Brauner <brauner@kernel.org>
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calls
ntfs3 never calls mark_buffer_dirty_inode() and thus its metadata
buffers list is always empty. Drop the pointless sync_mapping_buffers()
and invalidate_inode_buffers() calls.
CC: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
CC: ntfs3@lists.linux.dev
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-45-jack@suse.cz
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Remove the explicit zeroing of mapping->i_private_data since this
field is no longer used.
CC: Andreas Gruenbacher <agruenba@redhat.com>
CC: gfs2@lists.linux.dev
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-44-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Instead of checking i_private_list directly use appropriate wrapper
inode_has_buffers(). Also delete stale comment.
Acked-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Jan Kara <jack@suse.cz>
Link: https://patch.msgid.link/20260326095354.16340-43-jack@suse.cz
Tested-by: syzbot@syzkaller.appspotmail.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
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Commit 792d2b9a1259 ("drm: drop mtrr from i915"), added this comment,
drop it since it was carried over from i915.
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20260326121818.122401-2-dev@lankhorst.se
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
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Replace ioremap() with devm_ioremap() so the mapping is released
automatically when the device is unbound. Remove the corresponding
iounmap() calls from the error path in mpc5200_audio_dma_create() and
from mpc5200_audio_dma_destroy().
Since devm_ioremap() failure already returns directly and no other
cleanup is needed at that point, simplify the kzalloc error path to
return -ENOMEM directly instead of jumping to the now-removed out_unmap
label.
Signed-off-by: Jihed Chaibi <jihed.chaibi.dev@gmail.com>
Link: https://patch.msgid.link/20260324224530.102164-1-jihed.chaibi.dev@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
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The kernel test robot reported that on hexagon with clang, several test
functions in fat_test.c exceed the 1280-byte stack frame limit.
The root cause is the compound literal assignment in
fat_test_set_time_offset():
*sbi = (struct msdos_sb_info){};
struct msdos_sb_info contains two hash tables of 256 hlist_head entries
(FAT_HASH_SIZE), making it several kilobytes. The compound literal
creates a temporary on the stack, and when clang inlines
fat_test_set_time_offset() into each test function, the large temporary
inflates every caller's stack frame beyond the limit.
Replace the compound literal with memset() which zeroes the struct
in-place without a stack temporary.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202603251755.4UYY1Rcd-lkp@intel.com/
Signed-off-by: Christian Brauner <brauner@kernel.org>
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The i.MX93 uses a newer version of the DW CSI-2 controller with a changed
register layout and an integrated Image Pixel Interface (IPI), which
converts the received CSI-2 packets from byte to pixel format and produces
a pixel data bus containing vertical and horizontal synchronization
information.
The reset flow also differs, so add the .assert_reset(), .deassert_reset(),
and .idi_enable() callbacks to support it.
Reviewed-by: Michael Riesch <michael.riesch@collabora.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
[Sakari Ailus: include missing linux/bitfield.h.]
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The i.MX93 uses the DW CSI-2 RX controller, which is similar to the
Rockchip RK3568 implementation.
The i.MX93 variant provides one IRQ, two clocks, and no resets. Add the
"fsl,imx93-mipi-csi2" compatible string and keep the same constraints for
RK3568.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Acked-by: Michael Riesch <michael.riesch@collabora.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Use enum dw_mipi_csi2rx_regs_index together with a u32 array to describe
register offsets. This allows supporting new IP versions with different
register layouts in a structured way.
Add rk3568_regs matching the previous macro definitions and pass it as
driver data during probe.
No functional change intended.
Reviewed-by: Michael Riesch <michael.riesch@collabora.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Implement the .get_frame_desc() callback to fetch information from the
remote endpoint.
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Michael Riesch <michael.riesch@collabora.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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devm_clk_bulk_get_all() returns all clocks described in the DT, which are
already validated by the binding. Do not need enforce an expected clock
count.
Only check for error returns (< 0) to support more SoCs.
Reviewed-by: Michael Riesch <michael.riesch@collabora.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The DW MIPI CSI-2 RX is used on different SoCs, not all of which provide a
reset controller. Switch to devm_reset_control_get_optional_exclusive()
to support such platforms.
Reset presence and numbering are validated by the DT binding.
Reviewed-by: Michael Riesch <michael.riesch@collabora.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Add support for selecting between continuous and non-continuous MIPI clock
mode.
Previously, the CSI-2 non-continuous clock endpoint flag was ignored and
the sensor was always configured for non-continuous clock mode. For
existing device tree nodes that do not have this property enabled, this
update will therefore change the actual clock mode.
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Matthias Fend <matthias.fend@emfend.at>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The sensor supports an input clock in the range of 6 to 27 MHz. Currently,
the driver only supports a 19.2 MHz clock. Extend the driver so that at
least 24 MHz, which is a typical frequency for this sensor, can also be
used.
Signed-off-by: Matthias Fend <matthias.fend@emfend.at>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Add support for the required power supplies as well as the control of an
optional sensor reset.
Signed-off-by: Matthias Fend <matthias.fend@emfend.at>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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The OV08D10 can be used also on embedded designs using device tree so allow
the sensor to bind to a device tree node.
Signed-off-by: Matthias Fend <matthias.fend@emfend.at>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Add bindings for the Omnivision OV08D10 CMOS image sensor.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Matthias Fend <matthias.fend@emfend.at>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Add trailing \n to dev_* prints where missing.
Signed-off-by: Matthias Fend <matthias.fend@emfend.at>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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Fix some spelling errors in comments.
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Matthias Fend <matthias.fend@emfend.at>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
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