Commit graph

29 commits

Author SHA1 Message Date
Greg Kroah-Hartman
3ca4271578 Reapply "Merge tag 'android14-6.1.75_r00' into android14-6.1"
This reverts commit 6bad1052c2, it is the
LTS merge that had to previously get reverted due to being merged too
early.

Cc: Todd Kjos <tkjos@google.com>
Change-Id: I31b7d660bd833cf022ac4870f6d01e723fda5182
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2024-04-02 19:49:12 +00:00
Todd Kjos
6bad1052c2 Revert "Merge tag 'android14-6.1.75_r00' into android14-6.1"
This reverts commit 1dbafe61e3.

Reason for revert: Too early. Needs to wait until 2024-03-27

Change-Id: I769b944bd089aa2278659ec87f7ba4ac4e74ee4a
Signed-off-by: Todd Kjos <tkjos@google.com>
2024-03-07 21:18:27 +00:00
Greg Kroah-Hartman
e1b12db2de Merge 6.1.72 into android14-6.1-lts
Changes in 6.1.72
	keys, dns: Fix missing size check of V1 server-list header
	block: Don't invalidate pagecache for invalid falloc modes
	ALSA: hda/realtek: enable SND_PCI_QUIRK for hp pavilion 14-ec1xxx series
	ALSA: hda/realtek: fix mute/micmute LEDs for a HP ZBook
	ALSA: hda/realtek: Fix mute and mic-mute LEDs for HP ProBook 440 G6
	mptcp: prevent tcp diag from closing listener subflows
	Revert "PCI/ASPM: Remove pcie_aspm_pm_state_change()"
	drm/mgag200: Fix gamma lut not initialized for G200ER, G200EV, G200SE
	cifs: cifs_chan_is_iface_active should be called with chan_lock held
	cifs: do not depend on release_iface for maintaining iface_list
	KVM: x86/pmu: fix masking logic for MSR_CORE_PERF_GLOBAL_CTRL
	wifi: iwlwifi: pcie: don't synchronize IRQs from IRQ
	drm/bridge: ti-sn65dsi86: Never store more than msg->size bytes in AUX xfer
	netfilter: use skb_ip_totlen and iph_totlen
	netfilter: nf_tables: set transport offset from mac header for netdev/egress
	nfc: llcp_core: Hold a ref to llcp_local->dev when holding a ref to llcp_local
	octeontx2-af: Fix marking couple of structure as __packed
	drm/i915/dp: Fix passing the correct DPCD_REV for drm_dp_set_phy_test_pattern
	ice: Fix link_down_on_close message
	ice: Shut down VSI with "link-down-on-close" enabled
	i40e: Fix filter input checks to prevent config with invalid values
	igc: Report VLAN EtherType matching back to user
	igc: Check VLAN TCI mask
	igc: Check VLAN EtherType mask
	ASoC: fsl_rpmsg: Fix error handler with pm_runtime_enable
	ASoC: mediatek: mt8186: fix AUD_PAD_TOP register and offset
	mlxbf_gige: fix receive packet race condition
	net: sched: em_text: fix possible memory leak in em_text_destroy()
	r8169: Fix PCI error on system resume
	can: raw: add support for SO_MARK
	net-timestamp: extend SOF_TIMESTAMPING_OPT_ID to HW timestamps
	net: annotate data-races around sk->sk_tsflags
	net: annotate data-races around sk->sk_bind_phc
	net: Implement missing getsockopt(SO_TIMESTAMPING_NEW)
	selftests: bonding: do not set port down when adding to bond
	ARM: sun9i: smp: Fix array-index-out-of-bounds read in sunxi_mc_smp_init
	sfc: fix a double-free bug in efx_probe_filters
	net: bcmgenet: Fix FCS generation for fragmented skbuffs
	netfilter: nft_immediate: drop chain reference counter on error
	net: Save and restore msg_namelen in sock_sendmsg
	i40e: fix use-after-free in i40e_aqc_add_filters()
	ASoC: meson: g12a-toacodec: Validate written enum values
	ASoC: meson: g12a-tohdmitx: Validate written enum values
	ASoC: meson: g12a-toacodec: Fix event generation
	ASoC: meson: g12a-tohdmitx: Fix event generation for S/PDIF mux
	i40e: Restore VF MSI-X state during PCI reset
	igc: Fix hicredit calculation
	net/qla3xxx: fix potential memleak in ql_alloc_buffer_queues
	net/smc: fix invalid link access in dumping SMC-R connections
	octeontx2-af: Always configure NIX TX link credits based on max frame size
	octeontx2-af: Re-enable MAC TX in otx2_stop processing
	asix: Add check for usbnet_get_endpoints
	net: ravb: Wait for operating mode to be applied
	bnxt_en: Remove mis-applied code from bnxt_cfg_ntp_filters()
	net: Implement missing SO_TIMESTAMPING_NEW cmsg support
	selftests: secretmem: floor the memory size to the multiple of page_size
	cpu/SMT: Create topology_smt_thread_allowed()
	cpu/SMT: Make SMT control more robust against enumeration failures
	srcu: Fix callbacks acceleration mishandling
	bpf, x64: Fix tailcall infinite loop
	bpf, x86: Simplify the parsing logic of structure parameters
	bpf, x86: save/restore regs with BPF_DW size
	net: Declare MSG_SPLICE_PAGES internal sendmsg() flag
	udp: Convert udp_sendpage() to use MSG_SPLICE_PAGES
	splice, net: Add a splice_eof op to file-ops and socket-ops
	ipv4, ipv6: Use splice_eof() to flush
	udp: introduce udp->udp_flags
	udp: move udp->no_check6_tx to udp->udp_flags
	udp: move udp->no_check6_rx to udp->udp_flags
	udp: move udp->gro_enabled to udp->udp_flags
	udp: move udp->accept_udp_{l4|fraglist} to udp->udp_flags
	udp: lockless UDP_ENCAP_L2TPINUDP / UDP_GRO
	udp: annotate data-races around udp->encap_type
	wifi: iwlwifi: yoyo: swap cdb and jacket bits values
	arm64: dts: qcom: sdm845: align RPMh regulator nodes with bindings
	arm64: dts: qcom: sdm845: Fix PSCI power domain names
	fbdev: imsttfb: Release framebuffer and dealloc cmap on error path
	fbdev: imsttfb: fix double free in probe()
	bpf: decouple prune and jump points
	bpf: remove unnecessary prune and jump points
	bpf: Remove unused insn_cnt argument from visit_[func_call_]insn()
	bpf: clean up visit_insn()'s instruction processing
	bpf: Support new 32bit offset jmp instruction
	bpf: handle ldimm64 properly in check_cfg()
	bpf: fix precision backtracking instruction iteration
	blk-mq: make sure active queue usage is held for bio_integrity_prep()
	net/mlx5: Increase size of irq name buffer
	s390/mm: add missing arch_set_page_dat() call to vmem_crst_alloc()
	s390/cpumf: support user space events for counting
	f2fs: clean up i_compress_flag and i_compress_level usage
	f2fs: convert to use bitmap API
	f2fs: assign default compression level
	f2fs: set the default compress_level on ioctl
	selftests: mptcp: fix fastclose with csum failure
	selftests: mptcp: set FAILING_LINKS in run_tests
	media: camss: sm8250: Virtual channels for CSID
	media: qcom: camss: Fix set CSI2_RX_CFG1_VC_MODE when VC is greater than 3
	ext4: convert move_extent_per_page() to use folios
	khugepage: replace try_to_release_page() with filemap_release_folio()
	memory-failure: convert truncate_error_page() to use folio
	mm: merge folio_has_private()/filemap_release_folio() call pairs
	mm, netfs, fscache: stop read optimisation when folio removed from pagecache
	filemap: add a per-mapping stable writes flag
	block: update the stable_writes flag in bdev_add
	smb: client: fix missing mode bits for SMB symlinks
	net: dpaa2-eth: rearrange variable in dpaa2_eth_get_ethtool_stats
	dpaa2-eth: recycle the RX buffer only after all processing done
	ethtool: don't propagate EOPNOTSUPP from dumps
	bpf, sockmap: af_unix stream sockets need to hold ref for pair sock
	firmware: arm_scmi: Fix frequency truncation by promoting multiplier type
	ALSA: hda/realtek: Add quirk for Lenovo Yoga Pro 7
	genirq/affinity: Remove the 'firstvec' parameter from irq_build_affinity_masks
	genirq/affinity: Pass affinity managed mask array to irq_build_affinity_masks
	genirq/affinity: Don't pass irq_affinity_desc array to irq_build_affinity_masks
	genirq/affinity: Rename irq_build_affinity_masks as group_cpus_evenly
	genirq/affinity: Move group_cpus_evenly() into lib/
	lib/group_cpus.c: avoid acquiring cpu hotplug lock in group_cpus_evenly
	mm/memory_hotplug: add missing mem_hotplug_lock
	mm/memory_hotplug: fix error handling in add_memory_resource()
	net: sched: call tcf_ct_params_free to free params in tcf_ct_init
	netfilter: flowtable: allow unidirectional rules
	netfilter: flowtable: cache info of last offload
	net/sched: act_ct: offload UDP NEW connections
	net/sched: act_ct: Fix promotion of offloaded unreplied tuple
	netfilter: flowtable: GC pushes back packets to classic path
	net/sched: act_ct: Take per-cb reference to tcf_ct_flow_table
	octeontx2-af: Fix pause frame configuration
	octeontx2-af: Support variable number of lmacs
	btrfs: fix qgroup_free_reserved_data int overflow
	btrfs: mark the len field in struct btrfs_ordered_sum as unsigned
	ring-buffer: Fix 32-bit rb_time_read() race with rb_time_cmpxchg()
	firewire: ohci: suppress unexpected system reboot in AMD Ryzen machines and ASM108x/VT630x PCIe cards
	x86/kprobes: fix incorrect return address calculation in kprobe_emulate_call_indirect
	i2c: core: Fix atomic xfer check for non-preempt config
	mm: fix unmap_mapping_range high bits shift bug
	drm/amdgpu: skip gpu_info fw loading on navi12
	drm/amd/display: add nv12 bounding box
	mmc: meson-mx-sdhc: Fix initialization frozen issue
	mmc: rpmb: fixes pause retune on all RPMB partitions.
	mmc: core: Cancel delayed work before releasing host
	mmc: sdhci-sprd: Fix eMMC init failure after hw reset
	genirq/affinity: Only build SMP-only helper functions on SMP kernels
	f2fs: compress: fix to assign compress_level for lz4 correctly
	net/sched: act_ct: additional checks for outdated flows
	net/sched: act_ct: Always fill offloading tuple iifidx
	bpf: Fix a verifier bug due to incorrect branch offset comparison with cpu=v4
	bpf: syzkaller found null ptr deref in unix_bpf proto add
	media: qcom: camss: Comment CSID dt_id field
	smb3: Replace smb2pdu 1-element arrays with flex-arrays
	Revert "interconnect: qcom: sm8250: Enable sync_state"
	Linux 6.1.72

Change-Id: Id00eb2ae1159d4d5fa0ef914e672c5669cbf5b0a
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2024-01-14 13:26:13 +00:00
Christoph Hellwig
bf223fd4d9 block: update the stable_writes flag in bdev_add
[ Upstream commit 1898efcdbed32bb1c67269c985a50bab0dbc9493 ]

Propagate the per-queue stable_write flags into each bdev inode in bdev_add.
This makes sure devices that require stable writes have it set for I/O
on the block device node as well.

Note that this doesn't cover the case of a flag changing on a live device
yet.  We should handle that as well, but I plan to cover it as part of a
more general rework of how changing runtime paramters on block devices
works.

Fixes: 1cb039f3dc ("bdi: replace BDI_CAP_STABLE_WRITES with a queue and a sb flag")
Reported-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20231025141020.192413-3-hch@lst.de
Tested-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-01-10 17:10:32 +01:00
Suren Baghdasaryan
71c7092b68 ANDROID: Revert "mm: remove cleancache"
This reverts commit 0a4ee51818.

Conflicts:
	Documentation/mm/cleancache.rst
	Documentation/vm/index.rst
	arch/arm/configs/bcm2835_defconfig
	arch/arm/configs/qcom_defconfig
	arch/m68k/configs/amiga_defconfig
	arch/m68k/configs/apollo_defconfig
	arch/m68k/configs/atari_defconfig
	arch/m68k/configs/bvme6000_defconfig
	arch/m68k/configs/hp300_defconfig
	arch/m68k/configs/mac_defconfig
	arch/m68k/configs/multi_defconfig
	arch/m68k/configs/mvme147_defconfig
	arch/m68k/configs/mvme16x_defconfig
	arch/m68k/configs/q40_defconfig
	arch/m68k/configs/sun3_defconfig
	arch/m68k/configs/sun3x_defconfig
	arch/s390/configs/debug_defconfig
	arch/s390/configs/defconfig
	fs/f2fs/data.c
	fs/mpage.c

1. Skip documentation which was refactored.
2. Skip defconfigs unused in Android.
3. Replaced deprecated __submit_bio() with f2fs_submit_read_bio()
4. Replaced PageUptodate() with folio_test_uptodate()
5. Replaced SetPageUptodate() with folio_mark_uptodate()
6. Changed cleancache_get_page() call to use folio->page

Bug: 271544708
Change-Id: I93359509f7799de72f31b002a2539565d1bda9d6
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
2023-04-26 17:01:50 +00:00
Eric Biggers
2d985f8c6b vfs: support STATX_DIOALIGN on block devices
Add support for STATX_DIOALIGN to block devices, so that direct I/O
alignment restrictions are exposed to userspace in a generic way.

Note that this breaks the tradition of stat operating only on the block
device node, not the block device itself.  However, it was felt that
doing this is preferable, in order to make the interface useful and
avoid needing separate interfaces for regular files and block devices.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Link: https://lore.kernel.org/r/20220827065851.135710-3-ebiggers@kernel.org
2022-09-11 19:47:12 -05:00
Christoph Hellwig
5bf83e9a14 block: stop using bdevname in bdev_write_inode
Just use the %pg format specifier instead.  Also reformat the
printk statement to be more readable.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20220713055317.1888500-2-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-14 10:27:56 -06:00
Linus Torvalds
850f6033cd Description for this pull request:
- fix referencing wrong parent directory information during rename.
  - introduce a sys_tz mount option to use system timezone.
  - improve performance while zeroing a cluster with dirsync mount option.
  - fix slab-out-bounds in exat_clear_bitmap() reported from syzbot.
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Merge tag 'exfat-for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat

Pull exfat updates from Namjae Jeon:

 - fix referencing wrong parent directory information during rename

 - introduce a sys_tz mount option to use system timezone

 - improve performance while zeroing a cluster with dirsync mount option

 - fix slab-out-bounds in exat_clear_bitmap() reported from syzbot

* tag 'exfat-for-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
  exfat: check if cluster num is valid
  exfat: reduce block requests when zeroing a cluster
  block: add sync_blockdev_range()
  exfat: introduce mount option 'sys_tz'
  exfat: fix referencing wrong parent directory information after renaming
2022-05-24 18:30:27 -07:00
Yuezhang Mo
97d6fb1b48 block: add sync_blockdev_range()
sync_blockdev_range() is to support syncing multiple sectors
with as few block device requests as possible, it is helpful
to make the block device to give full play to its performance.

Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Suggested-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Acked-by: Sungjong Seo <sj1557.seo@samsung.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
2022-05-23 11:17:30 +09:00
Christoph Hellwig
9acf381f3e block: turn bdev->bd_openers into an atomic_t
All manipulation of bd_openers is under disk->open_mutex and will remain
so for the foreseeable future.  But at least one place reads it without
the lock (blkdev_get) and there are more to be added.  So make sure the
compiler does not do turn the increments and decrements into non-atomic
sequences by using an atomic_t.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220330052917.2566582-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-04-18 06:54:09 -06:00
Linus Torvalds
3bf03b9a08 Merge branch 'akpm' (patches from Andrew)
Merge updates from Andrew Morton:

 - A few misc subsystems: kthread, scripts, ntfs, ocfs2, block, and vfs

 - Most the MM patches which precede the patches in Willy's tree: kasan,
   pagecache, gup, swap, shmem, memcg, selftests, pagemap, mremap,
   sparsemem, vmalloc, pagealloc, memory-failure, mlock, hugetlb,
   userfaultfd, vmscan, compaction, mempolicy, oom-kill, migration, thp,
   cma, autonuma, psi, ksm, page-poison, madvise, memory-hotplug, rmap,
   zswap, uaccess, ioremap, highmem, cleanups, kfence, hmm, and damon.

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (227 commits)
  mm/damon/sysfs: remove repeat container_of() in damon_sysfs_kdamond_release()
  Docs/ABI/testing: add DAMON sysfs interface ABI document
  Docs/admin-guide/mm/damon/usage: document DAMON sysfs interface
  selftests/damon: add a test for DAMON sysfs interface
  mm/damon/sysfs: support DAMOS stats
  mm/damon/sysfs: support DAMOS watermarks
  mm/damon/sysfs: support schemes prioritization
  mm/damon/sysfs: support DAMOS quotas
  mm/damon/sysfs: support DAMON-based Operation Schemes
  mm/damon/sysfs: support the physical address space monitoring
  mm/damon/sysfs: link DAMON for virtual address spaces monitoring
  mm/damon: implement a minimal stub for sysfs-based DAMON interface
  mm/damon/core: add number of each enum type values
  mm/damon/core: allow non-exclusive DAMON start/stop
  Docs/damon: update outdated term 'regions update interval'
  Docs/vm/damon/design: update DAMON-Idle Page Tracking interference handling
  Docs/vm/damon: call low level monitoring primitives the operations
  mm/damon: remove unnecessary CONFIG_DAMON option
  mm/damon/paddr,vaddr: remove damon_{p,v}a_{target_valid,set_operations}()
  mm/damon/dbgfs-test: fix is_target_id() change
  ...
2022-03-22 16:11:53 -07:00
Muchun Song
fd60b28842 fs: allocate inode by using alloc_inode_sb()
The inode allocation is supposed to use alloc_inode_sb(), so convert
kmem_cache_alloc() of all filesystems to alloc_inode_sb().

Link: https://lkml.kernel.org/r/20220228122126.37293-5-songmuchun@bytedance.com
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Acked-by: Theodore Ts'o <tytso@mit.edu>		[ext4]
Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Alex Shi <alexs@kernel.org>
Cc: Anna Schumaker <Anna.Schumaker@Netapp.com>
Cc: Chao Yu <chao@kernel.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Fam Zheng <fam.zheng@bytedance.com>
Cc: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kari Argillander <kari.argillander@gmail.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Qi Zheng <zhengqi.arch@bytedance.com>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: Vladimir Davydov <vdavydov.dev@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Xiongchun Duan <duanxiongchun@bytedance.com>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-03-22 15:57:03 -07:00
Nian Yanchuan
483546c11d block: remove redundant semicolon
Remove redundant semicolon from block/bdev.c

Signed-off-by: Nian Yanchuan <yanchuan@nfschina.com>
Link: https://lore.kernel.org/r/20220227170124.GA14658@localhost.localdomain
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-02-27 14:52:36 -07:00
Christoph Hellwig
451f0b6f4c block: default BLOCK_LEGACY_AUTOLOAD to y
As Luis reported, losetup currently doesn't properly create the loop
device without this if the device node already exists because old
scripts created it manually.  So default to y for now and remove the
aggressive removal schedule.

Reported-by: Luis Chamberlain <mcgrof@kernel.org>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220225181440.1351591-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-02-27 14:49:23 -07:00
Christoph Hellwig
fbdee71bb5 block: deprecate autoloading based on dev_t
Make the legacy dev_t based autoloading optional and add a deprecation
warning.  This kind of autoloading has ceased to be useful about 20 years
ago.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220104071647.164918-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-02-02 07:49:58 -07:00
Christoph Hellwig
0a4ee51818 mm: remove cleancache
Patch series "remove Xen tmem leftovers".

Since the removal of the Xen tmem driver in 2019, the cleancache hooks
are entirely unused, as are large parts of frontswap.  This series
against linux-next (with the folio changes included) removes
cleancaches, and cuts down frontswap to the bits actually used by zswap.

This patch (of 13):

The cleancache subsystem is unused since the removal of Xen tmem driver
in commit 814bbf49dc ("xen: remove tmem driver").

[akpm@linux-foundation.org: remove now-unreachable code]

Link: https://lkml.kernel.org/r/20211224062246.1258487-1-hch@lst.de
Link: https://lkml.kernel.org/r/20211224062246.1258487-2-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Juergen Gross <jgross@suse.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Konrad Rzeszutek Wilk <Konrad.wilk@oracle.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Seth Jennings <sjenning@redhat.com>
Cc: Dan Streetman <ddstreet@ieee.org>
Cc: Vitaly Wool <vitaly.wool@konsulko.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-01-22 08:33:38 +02:00
Matthew Wilcox (Oracle)
0ba4566cd8 bdev: Improve lookup_bdev documentation
Add a Context section and rewrite the rest to be clearer.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
Link: https://lore.kernel.org/r/20211213171113.3097631-1-willy@infradead.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-12-13 11:29:16 -07:00
Colin Ian King
af22fef3e7 block: Remove redundant initialization of variable ret
The variable ret is being initialized with a value that is never
read, it is being updated later on. The assignment is redundant and
can be removed.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://lore.kernel.org/r/20211126230652.1175636-1-colin.i.king@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-11-29 06:41:29 -07:00
Christoph Hellwig
140862805a block: remove the GENHD_FL_HIDDEN check in blkdev_get_no_open
Hidden gendisks never hash the block device inode, so this can't happen.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211122130625.1136848-8-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-11-29 06:38:04 -07:00
Christoph Hellwig
1545e0b419 block: move GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE to disk->event_flags
GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE is all about the event reporting
mechanism, so move it to the event_flags field.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211122130625.1136848-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-11-29 06:35:21 -07:00
Ming Lei
efcf593223 block: avoid to touch unloaded module instance when opening bdev
disk->fops->owner is grabbed in blkdev_get_no_open() after the disk
kobject refcount is increased. This way can't make sure that
disk->fops->owner is still alive since del_gendisk() still can move
on if the kobject refcount of disk is grabbed by open() and
disk->fops->open() isn't called yet.

Fixes the issue by moving try_module_get() into blkdev_get_by_dev()
with ->open_mutex() held, then we can drain the in-progress open()
in del_gendisk(). Meantime new open() won't succeed because disk
becomes not alive.

This way is reasonable because blkdev_get_no_open() needn't to touch
disk->fops or defined callbacks.

Cc: Christoph Hellwig <hch@lst.de>
Cc: czhong@redhat.com
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211111020343.316126-1-ming.lei@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-11-22 18:35:37 -07:00
Christoph Hellwig
1e03a36bdf block: simplify the block device syncing code
Get rid of the indirections and just provide a sync_bdevs
helper for the generic sync code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211019062530.2174626-8-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-22 08:36:55 -06:00
Christoph Hellwig
70164eb6cc block: remove __sync_blockdev
Instead offer a new sync_blockdev_nowait helper for the !wait case.
This new helper is exported as it will grow modular callers in a bit.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211019062530.2174626-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-22 08:36:55 -06:00
Jackie Liu
057178cf51 fs: bdev: fix conflicting comment from lookup_bdev
We switched to directly use dev_t to get block device, lookup changed the
meaning of use, now we fix this conflicting comment.

Fixes: 4e7b5671c6 ("block: remove i_bdev")
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Jackie Liu <liuyun01@kylinos.cn>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211021071344.1600362-1-liu.yun@linux.dev
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-21 08:24:14 -06:00
Pavel Begunkov
025a38651b block: use bdev_get_queue() in bdev.c
Convert bdev->bd_disk->queue to bdev_get_queue(), it's uses a cached
queue pointer and so is faster.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/a352936ce5d9ac719645b1e29b173d931ebcdc02.1634219547.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18 06:17:36 -06:00
Pavel Begunkov
17220ca5ce block: cache request queue in bdev
There are tons of places where we need to get a request_queue only
having bdev, which turns into bdev->bd_disk->queue. There are probably a
hundred of such places considering inline helpers, and enough of them
are in hot paths.

Cache queue pointer in struct block_device and make use of it in
bdev_get_queue().

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/a3bfaecdd28956f03629d0ca5c63ebc096e1c809.1634219547.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18 06:17:36 -06:00
Christoph Hellwig
fe45e630a1 block: move integrity handling out of <linux/blkdev.h>
Split the integrity/metadata handling definitions out into a new header.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20210920123328.1399408-17-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-18 06:17:02 -06:00
Tetsuo Handa
06cc978d3f block: genhd: fix double kfree() in __alloc_disk_node()
syzbot is reporting use-after-free read at bdev_free_inode() [1], for
kfree() from __alloc_disk_node() is called before bdev_free_inode()
(which is called after RCU grace period) reads bdev->bd_disk and calls
kfree(bdev->bd_disk).

Fix use-after-free read followed by double kfree() problem
by making sure that bdev->bd_disk is NULL when calling iput().

Link: https://syzkaller.appspot.com/bug?extid=8281086e8a6fbfbd952a [1]
Reported-by: syzbot <syzbot+8281086e8a6fbfbd952a@syzkaller.appspotmail.com>
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/e6dd13c5-8db0-4392-6e78-a42ee5d2a1c4@i-love.sakura.ne.jp
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-10-02 07:29:20 -06:00
Christoph Hellwig
0dca4462ed block: move fs/block_dev.c to block/bdev.c
Move it together with the rest of the block layer.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20210907141303.1371844-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-09-07 08:39:40 -06:00
Renamed from fs/block_dev.c (Browse further)