- 04 Jul, 2017 15 commits
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Chao Yu authored
Signed-off-by:
Chao Yu <yuchao0@huawei.com> Signed-off-by:
Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
If fault injection functionality is enabled, show additional injection rate in ->show_options. Signed-off-by:
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Christophe JAILLET authored
err must be set to -ENOMEM, otherwise we return 0. Fixes: a912b54d ("f2fs: split bio cache") Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by:
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Tiezhu Yang authored
It is better to use variable name "inline_dentry" instead of "dentry_blk" when data type is "struct f2fs_inline_dentry". This patch has no functional changes, just to make code more readable especially when call the function make_dentry_ptr_inline() and f2fs_convert_inline_dir(). Signed-off-by:
Tiezhu Yang <kernelpatch@126.com> Reviewed-by:
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Chao Yu authored
With fault_injection option, generic/361 of fstests will complain us with below message: Call Trace: get_node_page+0x12/0x20 [f2fs] f2fs_iget+0x92/0x7d0 [f2fs] f2fs_fill_super+0x10fb/0x15e0 [f2fs] mount_bdev+0x184/0x1c0 f2fs_mount+0x15/0x20 [f2fs] mount_fs+0x39/0x150 vfs_kern_mount+0x67/0x110 do_mount+0x1bb/0xc70 SyS_mount+0x83/0xd0 do_syscall_64+0x6e/0x160 entry_SYSCALL64_slow_path+0x25/0x25 Since mkfs loop device in f2fs partition can be failed silently due to checkpoint error injection, so root inode page can be corrupted, in order to avoid needless panic, in get_node_page, it's better to leave message and return error to caller, and let fsck repaire it later. Signed-off-by:
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Chao Yu authored
We will never persist newly allocated nat entries during checkpoint(), so we don't need to track such nat entries in nat dirty list in order to avoid: - more latency during traversing dirty list; - sorting nat sets incorrectly due to recording wrong entry_cnt in nat entry set. Signed-off-by:
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Chao Yu authored
Recently, discard related codes have changed a lot, so add f2fs_bug_on to detect potential bug. Signed-off-by:
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Chao Yu authored
In order to avoid copied codes. Signed-off-by:
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Qiuyang Sun authored
Currently in F2FS, page faults and operations that truncate the pagecahe or data blocks, are completely unsynchronized. This can result in page fault faulting in a page into a range that we are changing after truncating, and thus we can end up with a page mapped to disk blocks that will be shortly freed. Filesystem corruption will shortly follow. This patch fixes the problem by creating new rw semaphore i_mmap_sem in f2fs_inode_info and grab it for functions removing blocks from extent tree and for read over page faults. The mechanism is similar to that in ext4. Signed-off-by:
Qiuyang Sun <sunqiuyang@huawei.com> Reviewed-by:
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Fan Li authored
The index of segment which the next nat block is in has only one different bit than the current one, so to get the next nat address, we can simply alter that one bit. Signed-off-by:
Fan Li <fanofcode.li@samsung.com> Reviewed-by:
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Jin Qian authored
Make sure number of entires doesn't exceed max journal size. Cc: stable@vger.kernel.org Signed-off-by:
Jin Qian <jinqian@android.com> Reviewed-by:
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Yunlei He authored
Mount fs with option noflush_merge, boot failed for illegal address fcc in function f2fs_issue_flush: if (!test_opt(sbi, FLUSH_MERGE)) { ret = submit_flush_wait(sbi); atomic_inc(&fcc->issued_flush); -> Here, fcc illegal return ret; } Signed-off-by:Yunlei He <heyunlei@huawei.com> Signed-off-by:
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Zhang Shengju authored
It's not necessary to specify 'int' casting for PTR_ERR. Signed-off-by:
Zhang Shengju <zhangshengju@cmss.chinamobile.com> Signed-off-by:
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Jaegeuk Kim authored
For example, f2fs_create - new_node_page is failed - handle_failed_inode - skip to add it into orphan list, since ni.blk_addr == NULL_ADDR : set_inode_flag(inode, FI_FREE_NID) f2fs_evict_inode - EIO due to fault injection - f2fs_bug_on() is triggered So, we don't need to call f2fs_bug_on in this case. Signed-off-by: -
Damien Le Moal authored
clear_prefree_segments() issues small discards after discarding full segments. These small discards may not be section aligned, so not zone aligned on a zoned block device, causing __f2fs_iissue_discard_zone() to fail. Fix this by not issuing small discards for a volume mounted with the BLKZONED feature enabled. Cc: stable@vger.kernel.org Signed-off-by:
Damien Le Moal <damien.lemoal@wdc.com> Reviewed-by:
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- 24 May, 2017 20 commits
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Eric Biggers authored
Since only an open file can be written to, and we only allow open()ing an encrypted file when its key is available, there is no need to check for the key again before permitting each ->write_iter(). This code was also broken in that it wouldn't actually have failed if the key was in fact unavailable. Signed-off-by:
Eric Biggers <ebiggers@google.com> Reviewed-by:
David Gstir <david@sigma-star.at> Acked-by:
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Eric Biggers authored
Since only an open file can be mmap'ed, and we only allow open()ing an encrypted file when its key is available, there is no need to check for the key again before permitting each mmap(). This f2fs copy of this code was also broken in that it wouldn't actually have failed if the key was in fact unavailable. Signed-off-by:
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Chao Yu authored
Wait discard IO completion outside cmd_lock to avoid long latency of holding cmd_lock in IO busy scenario. Signed-off-by:
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Chao Yu authored
There could be more than one waiter waiting discard IO completion, so we need use complete_all() instead of complete() in f2fs_submit_discard_endio to avoid hungtask. Fixes: ec9895ad ("f2fs: don't hold cmd_lock during waiting discard command") Cc: <stable@vger.kernel.org> Signed-off-by:
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Chao Yu authored
Signed-off-by:
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Chao Yu authored
Serialize data/node IOs by using fifo list instead of mutex lock, it will help to enhance concurrency of f2fs, meanwhile keeping LFS IO semantics. Signed-off-by:
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Chao Yu authored
Split wio_mutex to adjust different temperature bio cache. Signed-off-by:
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Yunlei He authored
Came across a hungtask caused by huge number of rb tree traversing during adding discard addrs in cp. This patch combine these consistence checks and move it to discard thread. Signed-off-by:
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Yunlei He authored
Thread A: Thread B: -f2fs_remount -sbi->mount_opt.opt = 0; <--- -f2fs_iget -do_read_inode -f2fs_init_extent_tree -F2FS_I(inode)->extent_tree is NULL -default_options && parse_options -remount return <--- -f2fs_map_blocks -f2fs_lookup_extent_tree -f2fs_bug_on(sbi, !et); The same problem with f2fs_new_inode. Signed-off-by: -
Jaegeuk Kim authored
This allows to freeze gc and discard threads. Cc: stable@vger.kernel.org Signed-off-by: -
Yunlei He authored
This patch add a new method get_ssr_cost to select SSR segment more accurately. Signed-off-by:
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Hou Pengyang authored
Signed-off-by:
Hou Pengyang <houpengyang@huawei.com> Signed-off-by:
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Jaegeuk Kim authored
Currently, if we do get_node_of_data before f2fs_lock_op, there may be dead lock as follows, where process A would be in infinite loop, and B will NOT be awaked. Process A(cp): Process B: f2fs_lock_all(sbi) get_dnode_of_data <---- lock dn.node_page flush_nodes f2fs_lock_op So, this patch adds f2fs_trylock_op to avoid f2fs_lock_op done by IPU. Signed-off-by: -
Jaegeuk Kim authored
Split DATA/NODE type bio cache according to different temperature, so write IOs with the same temperature can be merged in corresponding bio cache as much as possible, otherwise, different temperature write IOs submitting into one bio cache will always cause split of bio. Signed-off-by:
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Jaegeuk Kim authored
This patch just changes using fio instead of parameters. Signed-off-by: -
Jaegeuk Kim authored
Merged IO flow doesn't need to care about read IOs. f2fs_submit_merged_bio -> f2fs_submit_merged_write f2fs_submit_merged_bios -> f2fs_submit_merged_writes f2fs_submit_merged_bio_cond -> f2fs_submit_merged_write_cond Signed-off-by: -
Jaegeuk Kim authored
This patch avoids to use f2fs_submit_merged_bio for read, which was the only read case. Signed-off-by: -
Weichao Guo authored
By default, f2fs_gc returns -EINVAL in general error cases, e.g., no victim was selected. However, the default errno may be overwritten in two cases: gc_more and BG_GC -> FG_GC. We should return consistent errno in such cases. Signed-off-by:
Weichao Guo <guoweichao@huawei.com> Signed-off-by:
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Chao Yu authored
Last kernel has already support new syscall statx() in commit a528d35e ("statx: Add a system call to make enhanced file info available"), with this interface we can show more file info including file creation and some attribute flags to user. This patch tries to support this functionality. Signed-off-by:
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Jaegeuk Kim authored
This patch fixes missing inode flag loaded from disk, reported by Tom. [tom@localhost ~]$ sudo mount /dev/loop0 /mnt/ [tom@localhost ~]$ sudo chown tom:tom /mnt/ [tom@localhost ~]$ touch /mnt/testfile [tom@localhost ~]$ sudo chattr +i /mnt/testfile [tom@localhost ~]$ echo test > /mnt/testfile bash: /mnt/testfile: Operation not permitted [tom@localhost ~]$ rm /mnt/testfile rm: cannot remove '/mnt/testfile': Operation not permitted [tom@localhost ~]$ sudo umount /mnt/ [tom@localhost ~]$ sudo mount /dev/loop0 /mnt/ [tom@localhost ~]$ lsattr /mnt/testfile ----i-------------- /mnt/testfile [tom@localhost ~]$ echo test > /mnt/testfile [tom@localhost ~]$ rm /mnt/testfile [tom@localhost ~]$ sudo umount /mnt/ Cc: stable@vger.kernel.org Reported-by:
Tom Yan <tom.ty89@outlook.com> Signed-off-by:
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- 16 May, 2017 1 commit
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Jin Qian authored
Make sure segno and blkoff read from raw image are valid. Cc: stable@vger.kernel.org Signed-off-by:
Jin Qian <jinqian@google.com> [Jaegeuk Kim: adjust minor coding style] Signed-off-by:
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- 08 May, 2017 4 commits
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull KVM updates from Paolo Bonzini: "ARM: - HYP mode stub supports kexec/kdump on 32-bit - improved PMU support - virtual interrupt controller performance improvements - support for userspace virtual interrupt controller (slower, but necessary for KVM on the weird Broadcom SoCs used by the Raspberry Pi 3) MIPS: - basic support for hardware virtualization (ImgTec P5600/P6600/I6400 and Cavium Octeon III) PPC: - in-kernel acceleration for VFIO s390: - support for guests without storage keys - adapter interruption suppression x86: - usual range of nVMX improvements, notably nested EPT support for accessed and dirty bits - emulation of CPL3 CPUID faulting generic: - first part of VCPU thread request API - kvm_stat improvements" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (227 commits) kvm: nVMX: Don't validate disabled secondary controls KVM: put back #ifndef CONFIG_S390 around kvm_vcpu_kick Revert "KVM: Support vCPU-based gfn->hva cache" tools/kvm: fix top level makefile KVM: x86: don't hold kvm->lock in KVM_SET_GSI_ROUTING KVM: Documentation: remove VM mmap documentation kvm: nVMX: Remove superfluous VMX instruction fault checks KVM: x86: fix emulation of RSM and IRET instructions KVM: mark requests that need synchronization KVM: return if kvm_vcpu_wake_up() did wake up the VCPU KVM: add explicit barrier to kvm_vcpu_kick KVM: perform a wake_up in kvm_make_all_cpus_request KVM: mark requests that do not need a wakeup KVM: remove #ifndef CONFIG_S390 around kvm_vcpu_wake_up KVM: x86: always use kvm_make_request instead of set_bit KVM: add kvm_{test,clear}_request to replace {test,clear}_bit s390: kvm: Cpu model support for msa6, msa7 and msa8 KVM: x86: remove irq disablement around KVM_SET_CLOCK/KVM_GET_CLOCK kvm: better MWAIT emulation for guests KVM: x86: virtualize cpuid faulting ... -
git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM updates from Russell King: "Lots of little things this time: - allow modules to be autoloaded according to the HWCAP feature bits (used primarily for crypto modules) - split module core and init PLT sections, since the core code and init code could be placed far apart, and the PLT sections need to be local to the code block. - three patches from Chris Brandt to allow Cortex-A9 L2 cache optimisations to be disabled where a SoC didn't wire up the out of band signals. - NoMMU compliance fixes, avoiding corruption of vector table which is not being used at this point, and avoiding possible register state corruption when switching mode. - fixmap memory attribute compliance update. - remove unnecessary locking from update_sections_early() - ftrace fix for DEBUG_RODATA with !FRAME_POINTER" * 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: 8672/1: mm: remove tasklist locking from update_sections_early() ARM: 8671/1: V7M: Preserve registers across switch from Thread to Handler mode ARM: 8670/1: V7M: Do not corrupt vector table around v7m_invalidate_l1 call ARM: 8668/1: ftrace: Fix dynamic ftrace with DEBUG_RODATA and !FRAME_POINTER ARM: 8667/3: Fix memory attribute inconsistencies when using fixmap ARM: 8663/1: wire up HWCAP/HWCAP2 feature bits to the CPU modalias ARM: 8666/1: mm: dump: Add domain to output ARM: 8662/1: module: split core and init PLT sections ARM: 8661/1: dts: r7s72100: add l2 cache ARM: 8660/1: shmobile: r7s72100: Enable L2 cache ARM: 8659/1: l2c: allow CA9 optimizations to be disabled -
git://github.com/jcmvbkbc/linux-xtensaLinus Torvalds authored
Pull Xtensa updates from Max Filippov: - clearly mark references to spilled register locations with SPILL_SLOT macros - clean up xtensa ptrace: use generic tracehooks, move internal kernel definitions from uapi/asm to asm, make locally-used functions static, fix code style and alignment - use command line parameters passed to ISS as kernel command line. * tag 'xtensa-20170507' of git://github.com/jcmvbkbc/linux-xtensa: xtensa: clean up access to spilled registers locations xtensa: use generic tracehooks xtensa: move internal ptrace definitions from uapi/asm to asm xtensa: clean up xtensa/kernel/ptrace.c xtensa: drop unused fast_io_protect function xtensa: use ITLB_HIT_BIT instead of hardcoded number xtensa: ISS: update kernel command line in platform_setup xtensa: ISS: add argc/argv simcall definitions xtensa: ISS: cleanup setup.c
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git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fsLinus Torvalds authored
Pull f2fs updates from Jaegeuk Kim: "In this round, we've focused on enhancing performance with regards to block allocation, GC, and discard/in-place-update IO controls. There are a bunch of clean-ups as well as minor bug fixes. Enhancements: - disable heap-based allocation by default - issue small-sized discard commands by default - change the policy of data hotness for logging - distinguish IOs in terms of size and wbc type - start SSR earlier to avoid foreground GC - enhance data structures managing discard commands - enhance in-place update flow - add some more fault injection routines - secure one more xattr entry Bug fixes: - calculate victim cost for GC correctly - remain correct victim segment number for GC - race condition in nid allocator and initializer - stale pointer produced by atomic_writes - fix missing REQ_SYNC for flush commands - handle missing errors in more corner cases" * tag 'for-f2fs-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (111 commits) f2fs: fix a mount fail for wrong next_scan_nid f2fs: enhance scalability of trace macro f2fs: relocate inode_{,un}lock in F2FS_IOC_SETFLAGS f2fs: Make flush bios explicitely sync f2fs: show available_nids in f2fs/status f2fs: flush dirty nats periodically f2fs: introduce CP_TRIMMED_FLAG to avoid unneeded discard f2fs: allow cpc->reason to indicate more than one reason f2fs: release cp and dnode lock before IPU f2fs: shrink size of struct discard_cmd f2fs: don't hold cmd_lock during waiting discard command f2fs: nullify fio->encrypted_page for each writes f2fs: sanity check segment count f2fs: introduce valid_ipu_blkaddr to clean up f2fs: lookup extent cache first under IPU scenario f2fs: reconstruct code to write a data page f2fs: introduce __wait_discard_cmd f2fs: introduce __issue_discard_cmd f2fs: enable small discard by default f2fs: delay awaking discard thread ...
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