1. 01 May, 2024 2 commits
    • David Howells's avatar
      9p: Use alternative invalidation to using launder_folio · 40fb4828
      David Howells authored
      Use writepages-based flushing invalidation instead of
      invalidate_inode_pages2() and ->launder_folio().  This will allow
      ->launder_folio() to be removed eventually.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      cc: Eric Van Hensbergen <ericvh@kernel.org>
      cc: Latchesar Ionkov <lucho@ionkov.net>
      cc: Dominique Martinet <asmadeus@codewreck.org>
      cc: Christian Schoenebeck <linux_oss@crudebyte.com>
      cc: Jeff Layton <jlayton@kernel.org>
      cc: v9fs@lists.linux.dev
      cc: netfs@lists.linux.dev
      cc: linux-fsdevel@vger.kernel.org
      40fb4828
    • David Howells's avatar
      mm: Provide a means of invalidation without using launder_folio · 74e797d7
      David Howells authored
      Implement a replacement for launder_folio.  The key feature of
      invalidate_inode_pages2() is that it locks each folio individually, unmaps
      it to prevent mmap'd accesses interfering and calls the ->launder_folio()
      address_space op to flush it.  This has problems: firstly, each folio is
      written individually as one or more small writes; secondly, adjacent folios
      cannot be added so easily into the laundry; thirdly, it's yet another op to
      implement.
      
      Instead, use the invalidate lock to cause anyone wanting to add a folio to
      the inode to wait, then unmap all the folios if we have mmaps, then,
      conditionally, use ->writepages() to flush any dirty data back and then
      discard all pages.
      
      The invalidate lock prevents ->read_iter(), ->write_iter() and faulting
      through mmap all from adding pages for the duration.
      
      This is then used from netfslib to handle the flusing in unbuffered and
      direct writes.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      cc: Matthew Wilcox <willy@infradead.org>
      cc: Miklos Szeredi <miklos@szeredi.hu>
      cc: Trond Myklebust <trond.myklebust@hammerspace.com>
      cc: Christoph Hellwig <hch@lst.de>
      cc: Andrew Morton <akpm@linux-foundation.org>
      cc: Alexander Viro <viro@zeniv.linux.org.uk>
      cc: Christian Brauner <brauner@kernel.org>
      cc: Jeff Layton <jlayton@kernel.org>
      cc: linux-mm@kvack.org
      cc: linux-fsdevel@vger.kernel.org
      cc: netfs@lists.linux.dev
      cc: v9fs@lists.linux.dev
      cc: linux-afs@lists.infradead.org
      cc: ceph-devel@vger.kernel.org
      cc: linux-cifs@vger.kernel.org
      cc: linux-nfs@vger.kernel.org
      cc: devel@lists.orangefs.org
      74e797d7
  2. 29 Apr, 2024 6 commits
    • David Howells's avatar
      netfs: Use subreq_counter to allocate subreq debug_index values · 120b8781
      David Howells authored
      Use the subreq_counter in netfs_io_request to allocate subrequest
      debug_index values in read ops as well as write ops.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      cc: Jeff Layton <jlayton@kernel.org>
      cc: netfs@lists.linux.dev
      cc: linux-fsdevel@vger.kernel.org
      120b8781
    • David Howells's avatar
      netfs: Make netfs_io_request::subreq_counter an atomic_t · 93bf1cc0
      David Howells authored
      Make the netfs_io_request::subreq_counter, used to generate values for
      netfs_io_subrequest::debug_index, into an atomic_t so that it can be called
      from the retry thread at the same time as the app thread issuing writes.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Reviewed-by: default avatarJeff Layton <jlayton@kernel.org>
      cc: netfs@lists.linux.dev
      cc: linux-fsdevel@vger.kernel.org
      93bf1cc0
    • David Howells's avatar
      netfs: Remove deprecated use of PG_private_2 as a second writeback flag · ae678317
      David Howells authored
      Remove the deprecated use of PG_private_2 in netfslib.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Reviewed-by: default avatarJeff Layton <jlayton@kernel.org>
      cc: Matthew Wilcox (Oracle) <willy@infradead.org>
      cc: linux-cachefs@redhat.com
      cc: linux-fsdevel@vger.kernel.org
      cc: linux-mm@kvack.org
      ae678317
    • David Howells's avatar
      mm: Remove the PG_fscache alias for PG_private_2 · 2e9d7e4b
      David Howells authored
      Remove the PG_fscache alias for PG_private_2 and use the latter directly.
      Use of this flag for marking pages undergoing writing to the cache should
      be considered deprecated and the folios should be marked dirty instead and
      the write done in ->writepages().
      
      Note that PG_private_2 itself should be considered deprecated and up for
      future removal by the MM folks too.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Reviewed-by: default avatarJeff Layton <jlayton@kernel.org>
      cc: Matthew Wilcox (Oracle) <willy@infradead.org>
      cc: Ilya Dryomov <idryomov@gmail.com>
      cc: Xiubo Li <xiubli@redhat.com>
      cc: Steve French <sfrench@samba.org>
      cc: Paulo Alcantara <pc@manguebit.com>
      cc: Ronnie Sahlberg <ronniesahlberg@gmail.com>
      cc: Shyam Prasad N <sprasad@microsoft.com>
      cc: Tom Talpey <tom@talpey.com>
      cc: Bharath SM <bharathsm@microsoft.com>
      cc: Trond Myklebust <trond.myklebust@hammerspace.com>
      cc: Anna Schumaker <anna@kernel.org>
      cc: netfs@lists.linux.dev
      cc: ceph-devel@vger.kernel.org
      cc: linux-cifs@vger.kernel.org
      cc: linux-nfs@vger.kernel.org
      cc: linux-fsdevel@vger.kernel.org
      cc: linux-mm@kvack.org
      2e9d7e4b
    • David Howells's avatar
      netfs: Replace PG_fscache by setting folio->private and marking dirty · 2ff1e975
      David Howells authored
      When dirty data is being written to the cache, setting/waiting on/clearing
      the fscache flag is always done in tandem with setting/waiting on/clearing
      the writeback flag.  The netfslib buffered write routines wait on and set
      both flags and the write request cleanup clears both flags, so the fscache
      flag is almost superfluous.
      
      The reason it isn't superfluous is because the fscache flag is also used to
      indicate that data just read from the server is being written to the cache.
      The flag is used to prevent a race involving overlapping direct-I/O writes
      to the cache.
      
      Change this to indicate that a page is in need of being copied to the cache
      by placing a magic value in folio->private and marking the folios dirty.
      Then when the writeback code sees a folio marked in this way, it only
      writes it to the cache and not to the server.
      
      If a folio that has this magic value set is modified, the value is just
      replaced and the folio will then be uplodaded too.
      
      With this, PG_fscache is no longer required by the netfslib core, 9p and
      afs.
      
      Ceph and nfs, however, still need to use the old PG_fscache-based tracking.
      To deal with this, a flag, NETFS_ICTX_USE_PGPRIV2, now has to be set on the
      flags in the netfs_inode struct for those filesystems.  This reenables the
      use of PG_fscache in that inode.  9p and afs use the netfslib write helpers
      so get switched over; cifs, for the moment, does page-by-page manual access
      to the cache, so doesn't use PG_fscache and is unaffected.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Reviewed-by: default avatarJeff Layton <jlayton@kernel.org>
      cc: Matthew Wilcox (Oracle) <willy@infradead.org>
      cc: Eric Van Hensbergen <ericvh@kernel.org>
      cc: Latchesar Ionkov <lucho@ionkov.net>
      cc: Dominique Martinet <asmadeus@codewreck.org>
      cc: Christian Schoenebeck <linux_oss@crudebyte.com>
      cc: Marc Dionne <marc.dionne@auristor.com>
      cc: Ilya Dryomov <idryomov@gmail.com>
      cc: Xiubo Li <xiubli@redhat.com>
      cc: Steve French <sfrench@samba.org>
      cc: Paulo Alcantara <pc@manguebit.com>
      cc: Ronnie Sahlberg <ronniesahlberg@gmail.com>
      cc: Shyam Prasad N <sprasad@microsoft.com>
      cc: Tom Talpey <tom@talpey.com>
      cc: Bharath SM <bharathsm@microsoft.com>
      cc: Trond Myklebust <trond.myklebust@hammerspace.com>
      cc: Anna Schumaker <anna@kernel.org>
      cc: netfs@lists.linux.dev
      cc: v9fs@lists.linux.dev
      cc: linux-afs@lists.infradead.org
      cc: ceph-devel@vger.kernel.org
      cc: linux-cifs@vger.kernel.org
      cc: linux-nfs@vger.kernel.org
      cc: linux-fsdevel@vger.kernel.org
      cc: linux-mm@kvack.org
      2ff1e975
    • David Howells's avatar
      netfs: Update i_blocks when write committed to pagecache · 5f24162f
      David Howells authored
      Update i_blocks when i_size is updated when we finish making a write to the
      pagecache to reflect the amount of space we think will be consumed.
      
      This maintains cifs commit dbfdff40 ("smb3:
      update allocation size more accurately on write completion") which would
      otherwise be removed by the cifs part of the netfs writeback rewrite.
      Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
      Reviewed-by: default avatarJeff Layton <jlayton@kernel.org>
      cc: Steve French <sfrench@samba.org>
      cc: Shyam Prasad N <nspmangalore@gmail.com>
      cc: Rohith Surabattula <rohiths.msft@gmail.com>
      cc: linux-cifs@vger.kernel.org
      cc: netfs@lists.linux.dev
      cc: linux-fsdevel@vger.kernel.org
      cc: linux-mm@kvack.org
      5f24162f
  3. 28 Apr, 2024 6 commits
  4. 27 Apr, 2024 9 commits
    • Linus Torvalds's avatar
      Merge tag 'rust-fixes-6.9' of https://github.com/Rust-for-Linux/linux · 2c815938
      Linus Torvalds authored
      Pull Rust fixes from Miguel Ojeda:
      
       - Soundness: make internal functions generated by the 'module!' macro
         inaccessible, do not implement 'Zeroable' for 'Infallible' and
         require 'Send' for the 'Module' trait.
      
       - Build: avoid errors with "empty" files and workaround 'rustdoc' ICE.
      
       - Kconfig: depend on '!CFI_CLANG' and avoid selecting 'CONSTRUCTORS'.
      
       - Code docs: remove non-existing key from 'module!' macro example.
      
       - Docs: trivial rendering fix in arch table.
      
      * tag 'rust-fixes-6.9' of https://github.com/Rust-for-Linux/linux:
        rust: remove `params` from `module` macro example
        kbuild: rust: force `alloc` extern to allow "empty" Rust files
        kbuild: rust: remove unneeded `@rustc_cfg` to avoid ICE
        rust: kernel: require `Send` for `Module` implementations
        rust: phy: implement `Send` for `Registration`
        rust: make mutually exclusive with CFI_CLANG
        rust: macros: fix soundness issue in `module!` macro
        rust: init: remove impl Zeroable for Infallible
        docs: rust: fix improper rendering in Arch Support page
        rust: don't select CONSTRUCTORS
      2c815938
    • Linus Torvalds's avatar
      Merge tag 'riscv-for-linus-6.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux · 57865f39
      Linus Torvalds authored
      Pull RISC-V fixes from Palmer Dabbelt:
      
       - A fix for TASK_SIZE on rv64/NOMMU, to reflect the lack of user/kernel
         separation
      
       - A fix to avoid loading rv64/NOMMU kernel past the start of RAM
      
       - A fix for RISCV_HWPROBE_EXT_ZVFHMIN on ilp32 to avoid signed integer
         overflow in the bitmask
      
       - The sud_test kselftest has been fixed to properly swizzle the syscall
         number into the return register, which are not the same on RISC-V
      
       - A fix for a build warning in the perf tools on rv32
      
       - A fix for the CBO selftests, to avoid non-constants leaking into the
         inline asm
      
       - A pair of fixes for T-Head PBMT errata probing, which has been
         renamed MAE by the vendor
      
      * tag 'riscv-for-linus-6.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
        RISC-V: selftests: cbo: Ensure asm operands match constraints, take 2
        perf riscv: Fix the warning due to the incompatible type
        riscv: T-Head: Test availability bit before enabling MAE errata
        riscv: thead: Rename T-Head PBMT to MAE
        selftests: sud_test: return correct emulated syscall value on RISC-V
        riscv: hwprobe: fix invalid sign extension for RISCV_HWPROBE_EXT_ZVFHMIN
        riscv: Fix loading 64-bit NOMMU kernels past the start of RAM
        riscv: Fix TASK_SIZE on 64-bit NOMMU
      57865f39
    • Linus Torvalds's avatar
      Merge tag '6.9-rc5-cifs-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6 · d43df69f
      Linus Torvalds authored
      Pull smb client fixes from Steve French:
       "Three smb3 client fixes, all also for stable:
      
         - two small locking fixes spotted by Coverity
      
         - FILE_ALL_INFO and network_open_info packing fix"
      
      * tag '6.9-rc5-cifs-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
        smb3: fix lock ordering potential deadlock in cifs_sync_mid_result
        smb3: missing lock when picking channel
        smb: client: Fix struct_group() usage in __packed structs
      d43df69f
    • Linus Torvalds's avatar
      Merge tag 'i2c-for-6.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux · 5d12ed4b
      Linus Torvalds authored
      Pull i2c fixes from Wolfram Sang:
       "Fix a race condition in the at24 eeprom handler, a NULL pointer
        exception in the I2C core for controllers only using target modes,
        drop a MAINTAINERS entry, and fix an incorrect DT binding for at24"
      
      * tag 'i2c-for-6.9-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
        i2c: smbus: fix NULL function pointer dereference
        MAINTAINERS: Drop entry for PCA9541 bus master selector
        eeprom: at24: fix memory corruption race condition
        dt-bindings: eeprom: at24: Fix ST M24C64-D compatible schema
      5d12ed4b
    • Tetsuo Handa's avatar
      profiling: Remove create_prof_cpu_mask(). · 2e5449f4
      Tetsuo Handa authored
      create_prof_cpu_mask() is no longer used after commit 1f44a225 ("s390:
      convert interrupt handling to use generic hardirq").
      Signed-off-by: default avatarTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      2e5449f4
    • Linus Torvalds's avatar
      Merge tag 'soundwire-6.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire · 8a5c3ef7
      Linus Torvalds authored
      Pull soundwire fix from Vinod Koul:
      
       - Single AMD driver fix for wake interrupt handling in clockstop mode
      
      * tag 'soundwire-6.9-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
        soundwire: amd: fix for wake interrupt handling for clockstop mode
      8a5c3ef7
    • Linus Torvalds's avatar
      Merge tag 'dmaengine-fix-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine · 6fba14a7
      Linus Torvalds authored
      Pull dmaengine fixes from Vinod Koul:
      
       - Revert pl330 issue_pending waits until WFP state due to regression
         reported in Bluetooth loading
      
       - Xilinx driver fixes for synchronization, buffer offsets, locking and
         kdoc
      
       - idxd fixes for spinlock and preventing the migration of the perf
         context to an invalid target
      
       - idma driver fix for interrupt handling when powered off
      
       - Tegra driver residual calculation fix
      
       - Owl driver register access fix
      
      * tag 'dmaengine-fix-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/dmaengine:
        dmaengine: idxd: Fix oops during rmmod on single-CPU platforms
        dmaengine: xilinx: xdma: Clarify kdoc in XDMA driver
        dmaengine: xilinx: xdma: Fix synchronization issue
        dmaengine: xilinx: xdma: Fix wrong offsets in the buffers addresses in dma descriptor
        dma: xilinx_dpdma: Fix locking
        dmaengine: idxd: Convert spinlock to mutex to lock evl workqueue
        idma64: Don't try to serve interrupts when device is powered off
        dmaengine: tegra186: Fix residual calculation
        dmaengine: owl: fix register access functions
        dmaengine: Revert "dmaengine: pl330: issue_pending waits until WFP state"
      6fba14a7
    • Linus Torvalds's avatar
      Merge tag 'phy-fixes-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy · 63407d30
      Linus Torvalds authored
      Pull phy fixes from Vinod Koul:
      
       - static checker (array size, bounds) fix for marvel driver
      
       - Rockchip rk3588 pcie fixes for bifurcation and mux
      
       - Qualcomm qmp-compbo fix for VCO, register base and regulator name for
         m31 driver
      
       - charger det crash fix for ti driver
      
      * tag 'phy-fixes-6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/phy/linux-phy:
        phy: ti: tusb1210: Resolve charger-det crash if charger psy is unregistered
        phy: qcom: qmp-combo: fix VCO div offset on v5_5nm and v6
        phy: phy-rockchip-samsung-hdptx: Select CONFIG_RATIONAL
        phy: qcom: m31: match requested regulator name with dt schema
        phy: qcom: qmp-combo: Fix register base for QSERDES_DP_PHY_MODE
        phy: qcom: qmp-combo: Fix VCO div offset on v3
        phy: rockchip: naneng-combphy: Fix mux on rk3588
        phy: rockchip-snps-pcie3: fix clearing PHP_GRF_PCIESEL_CON bits
        phy: rockchip-snps-pcie3: fix bifurcation on rk3588
        phy: freescale: imx8m-pcie: fix pcie link-up instability
        phy: marvell: a3700-comphy: Fix hardcoded array size
        phy: marvell: a3700-comphy: Fix out of bounds read
      63407d30
    • Wolfram Sang's avatar
      i2c: smbus: fix NULL function pointer dereference · 91811a31
      Wolfram Sang authored
      Baruch reported an OOPS when using the designware controller as target
      only. Target-only modes break the assumption of one transfer function
      always being available. Fix this by always checking the pointer in
      __i2c_transfer.
      Reported-by: default avatarBaruch Siach <baruch@tkos.co.il>
      Closes: https://lore.kernel.org/r/4269631780e5ba789cf1ae391eec1b959def7d99.1712761976.git.baruch@tkos.co.il
      Fixes: 4b1acc43 ("i2c: core changes for slave support")
      [wsa: dropped the simplification in core-smbus to avoid theoretical regressions]
      Signed-off-by: default avatarWolfram Sang <wsa+renesas@sang-engineering.com>
      Tested-by: default avatarBaruch Siach <baruch@tkos.co.il>
      91811a31
  5. 26 Apr, 2024 17 commits