- Oct 06, 2022
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Jaegeuk Kim authored
This reverts dbf8e63f ("f2fs: remove device type check for direct IO"), and apply the below first version, since it contributed out-of-order DIO writes. For zoned devices, f2fs forbids direct IO and forces buffered IO to serialize write IOs. However, the constraint does not apply to read IOs. Cc: stable@vger.kernel.org Fixes: dbf8e63f ("f2fs: remove device type check for direct IO") Signed-off-by:
Eunhee Rho <eunhee83.rho@samsung.com> Reviewed-by:
Chao Yu <chao@kernel.org> Signed-off-by:
Jaegeuk Kim <jaegeuk@kernel.org>
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- Oct 05, 2022
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Chao Yu authored
This patch supports to record detail reason of FSCORRUPTED error into f2fs_super_block.s_errors[]. Signed-off-by:
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Chao Yu authored
This patch supports to record stop_checkpoint error into f2fs_super_block.s_stop_reason[]. Signed-off-by:
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Zhang Qilong authored
Whehter or not error occurs, checking "err == 1" is unnecessary in f2fs_xattr_fiemap(), and just remove it here. Signed-off-by:
Zhang Qilong <zhangqilong3@huawei.com> Reviewed-by:
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Chao Yu authored
This patch adds a new sysfs entry named cp_status, it can output checkpoint flags in real time. Signed-off-by:
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Chao Yu authored
It is possible that ino of dirent or orphan inode is corrupted in a fuzzed image, occasionally, if corrupted ino is equal to meta ino: meta_ino, node_ino or compress_ino, caller of f2fs_iget() from below call paths will get meta inode directly, it's not allowed, let's add sanity check to detect such cases. case #1 - recover_dentry - __f2fs_find_entry - f2fs_iget_retry case #2 - recover_orphan_inode - f2fs_iget_retry Signed-off-by:
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Chao Yu authored
f2fs_inode_info.cp_task was introduced for FS_CP_DATA_IO accounting since commit b0af6d49 ("f2fs: add app/fs io stat"). However, cp_task usage coverage has been increased due to below commits: commit 040d2bb3 ("f2fs: fix to avoid deadloop if data_flush is on") commit 186857c5 ("f2fs: fix potential recursive call when enabling data_flush") So that, if data_flush mountoption is on, when data flush was triggered from background, the IO from data flush will be accounted as checkpoint IO type incorrectly. In order to fix this issue, this patch splits cp_task into two: a) cp_task: used for IO accounting b) wb_task: used to avoid deadlock Fixes: 040d2bb3 ("f2fs: fix to avoid deadloop if data_flush is on") Fixes: 186857c5 ("f2fs: fix potential recursive call when enabling data_flush") Signed-off-by:
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Zhang Qilong authored
ERROR: code indent should use tabs where possible ERROR: spaces required around that ':' ERROR: incorrect tab Found serveral code type errors when review the code and fix it. There is no function change. Signed-off-by:
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Zhang Qilong authored
The trace_f2fs_update_extent_tree_range could not record compressed block length in the cluster of compress file and we just add it. Signed-off-by:
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Chao Yu authored
As Wenqing Liu reported in bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=216456 BUG: KASAN: use-after-free in recover_data+0x63ae/0x6ae0 [f2fs] Read of size 4 at addr ffff8881464dcd80 by task mount/1013 CPU: 3 PID: 1013 Comm: mount Tainted: G W 6.0.0-rc4 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.15.0-1 04/01/2014 Call Trace: dump_stack_lvl+0x45/0x5e print_report.cold+0xf3/0x68d kasan_report+0xa8/0x130 recover_data+0x63ae/0x6ae0 [f2fs] f2fs_recover_fsync_data+0x120d/0x1fc0 [f2fs] f2fs_fill_super+0x4665/0x61e0 [f2fs] mount_bdev+0x2cf/0x3b0 legacy_get_tree+0xed/0x1d0 vfs_get_tree+0x81/0x2b0 path_mount+0x47e/0x19d0 do_mount+0xce/0xf0 __x64_sys_mount+0x12c/0x1a0 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The root cause is: in fuzzed image, SSA table is corrupted: ofs_in_node is larger than ADDRS_PER_PAGE(), result in out-of-range access on 4k-size page. - recover_data - do_recover_data - check_index_in_prev_nodes - f2fs_data_blkaddr This patch adds sanity check on summary info in recovery and GC flow in where the flows rely on them. After patch: [ 29.310883] F2FS-fs (loop0): Inconsistent ofs_in_node:65286 in summary, ino:0, nid:6, max:1018 Cc: stable@vger.kernel.org Reported-by:
Wenqing Liu <wenqingliu0120@gmail.com> Signed-off-by:
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Christian Brauner authored
A while ago we introduced a dedicated vfs{g,u}id_t type in commit 1e5267cd ("mnt_idmapping: add vfs{g,u}id_t"). We already switched over a good part of the VFS. Ultimately we will remove all legacy idmapped mount helpers that operate only on k{g,u}id_t in favor of the new type safe helpers that operate on vfs{g,u}id_t. Cc: Seth Forshee (Digital Ocean) <sforshee@kernel.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Jaegeuk Kim <jaegeuk@kernel.org> Cc: Chao Yu <chao@kernel.org> Cc: linux-f2fs-devel@lists.sourceforge.net Signed-off-by:Christian Brauner (Microsoft) <brauner@kernel.org> Reviewed-by:
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Chao Yu authored
As Wenqing Liu reported in bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=216456 loop5: detected capacity change from 0 to 131072 F2FS-fs (loop5): recover_inode: ino = 6, name = hln, inline = 1 F2FS-fs (loop5): recover_data: ino = 6 (i_size: recover) err = 0 F2FS-fs (loop5): recover_inode: ino = 6, name = hln, inline = 1 F2FS-fs (loop5): recover_data: ino = 6 (i_size: recover) err = 0 F2FS-fs (loop5): recover_inode: ino = 6, name = hln, inline = 1 F2FS-fs (loop5): recover_data: ino = 6 (i_size: recover) err = 0 F2FS-fs (loop5): Bitmap was wrongly set, blk:5634 ------------[ cut here ]------------ WARNING: CPU: 3 PID: 1013 at fs/f2fs/segment.c:2198 RIP: 0010:update_sit_entry+0xa55/0x10b0 [f2fs] Call Trace: <TASK> f2fs_do_replace_block+0xa98/0x1890 [f2fs] f2fs_replace_block+0xeb/0x180 [f2fs] recover_data+0x1a69/0x6ae0 [f2fs] f2fs_recover_fsync_data+0x120d/0x1fc0 [f2fs] f2fs_fill_super+0x4665/0x61e0 [f2fs] mount_bdev+0x2cf/0x3b0 legacy_get_tree+0xed/0x1d0 vfs_get_tree+0x81/0x2b0 path_mount+0x47e/0x19d0 do_mount+0xce/0xf0 __x64_sys_mount+0x12c/0x1a0 do_syscall_64+0x38/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd If we enable CONFIG_F2FS_CHECK_FS config, it will trigger a kernel panic instead of warning. The root cause is: in fuzzed image, SIT table is inconsistent with inode mapping table, result in triggering such warning during SIT table update. This patch introduces a new flag DATA_GENERIC_ENHANCE_UPDATE, w/ this flag, data block recovery flow can check destination blkaddr's validation in SIT table, and skip f2fs_replace_block() to avoid inconsistent status. Cc: stable@vger.kernel.org Reported-by:
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Weichao Guo authored
Cold files may be fragmented due to SSR, defragment is needed as sequential reads are dominant scenarios of these files. FI_OPU_WRITE should override FADVISE_COLD_BIT to avoid defragment fails. Signed-off-by:
Weichao Guo <guoweichao@oppo.com> Signed-off-by:
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Zhang Qilong authored
The following scenarios exist. process A: process B: ->f2fs_drop_extent_tree ->f2fs_update_extent_cache_range ->f2fs_update_extent_tree_range ->write_lock ->set_inode_flag ->is_inode_flag_set ->__free_extent_tree // Shouldn't // have been // cleaned up // here ->write_lock In this case, the "FI_NO_EXTENT" flag is set between f2fs_update_extent_tree_range and is_inode_flag_set by other process. it leads to clearing the whole exten tree which should not have happened. And we fix it by move the setting it to the range of write_lock. Fixes:5f281fab ("f2fs: disable extent_cache for fcollapse/finsert inodes") Signed-off-by: -
Zhang Qilong authored
It have checked "compressed" at the entry of f2fs_sanity_check_cluster, just remove the redundant check for better performance here. Signed-off-by:
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Zhang Qilong authored
We can use a inner function to init the disk time of f2fs_inode_info for cleaning redundant code. Signed-off-by:
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Yonggil Song authored
Fix typo in f2fs.h Detected by Jaeyoon Choi Signed-off-by:
Yonggil Song <yonggil.song@samsung.com> Signed-off-by:
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Shuqi Zhang authored
This is a BUG_ON issue as follows when running xfstest-generic-503: WARNING: CPU: 21 PID: 1385 at fs/f2fs/inode.c:762 f2fs_evict_inode+0x847/0xaa0 Modules linked in: CPU: 21 PID: 1385 Comm: umount Not tainted 5.19.0-rc5+ #73 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.14.0-4.fc34 04/01/2014 Call Trace: evict+0x129/0x2d0 dispose_list+0x4f/0xb0 evict_inodes+0x204/0x230 generic_shutdown_super+0x5b/0x1e0 kill_block_super+0x29/0x80 kill_f2fs_super+0xe6/0x140 deactivate_locked_super+0x44/0xc0 deactivate_super+0x79/0x90 cleanup_mnt+0x114/0x1a0 __cleanup_mnt+0x16/0x20 task_work_run+0x98/0x100 exit_to_user_mode_prepare+0x3d0/0x3e0 syscall_exit_to_user_mode+0x12/0x30 do_syscall_64+0x42/0x80 entry_SYSCALL_64_after_hwframe+0x46/0xb0 Function flow analysis when BUG occurs: f2fs_fallocate mmap do_page_fault pte_spinlock // ---lock_pte do_wp_page wp_page_shared pte_unmap_unlock // unlock_pte do_page_mkwrite f2fs_vm_page_mkwrite down_read(invalidate_lock) lock_page if (PageMappedToDisk(page)) goto out; // set_page_dirty --NOT RUN out: up_read(invalidate_lock); finish_mkwrite_fault // unlock_pte f2fs_collapse_range down_write(i_mmap_sem) truncate_pagecache unmap_mapping_pages i_mmap_lock_write // down_write(i_mmap_rwsem) ...... zap_pte_range pte_offset_map_lock // ---lock_pte set_page_dirty f2fs_dirty_data_folio if (!folio_test_dirty(folio)) { fault_dirty_shared_page set_page_dirty f2fs_dirty_data_folio if (!folio_test_dirty(folio)) { filemap_dirty_folio f2fs_update_dirty_folio // ++ } unlock_page filemap_dirty_folio f2fs_update_dirty_folio // page count++ } pte_unmap_unlock // --unlock_pte i_mmap_unlock_write // up_write(i_mmap_rwsem) truncate_inode_pages up_write(i_mmap_sem) When race happens between mmap-do_page_fault-wp_page_shared and fallocate-truncate_pagecache-zap_pte_range, the zap_pte_range calls function set_page_dirty without page lock. Besides, though truncate_pagecache has immap and pte lock, wp_page_shared calls fault_dirty_shared_page without any. In this case, two threads race in f2fs_dirty_data_folio function. Page is set to dirty only ONCE, but the count is added TWICE by calling filemap_dirty_folio. Thus the count of dirty page cannot accord with the real dirty pages. Following is the solution to in case of race happens without any lock. Since folio_test_set_dirty in filemap_dirty_folio is atomic, judge return value will not be at risk of race. Signed-off-by:Shuqi Zhang <zhangshuqi3@huawei.com> Signed-off-by:
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Zhang Qilong authored
Just use the defined COMPRESS_MAPPING to get compress cache mapping instaed of direct accessing name. Signed-off-by:
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Zhang Qilong authored
Just return tmp_ptr here, it's no need to dereference checkpoint pointer again. Signed-off-by:
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- Sep 13, 2022
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Zhang Qilong authored
It could return directly after init_decompress_ctx. Signed-off-by:
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Zhang Qilong authored
The "true" is not match the parametera type "int", and we modify it. Signed-off-by:
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Jaegeuk Kim authored
This patch increases the threshold that limits the reserved root space from 0.2% to 12.5% by using simple shift operation. Typically Android sets 128MB, but if the storage capacity is 32GB, 0.2% which is around 64MB becomes too small. Let's relax it. Cc: stable@vger.kernel.org Reported-by:
Aran Dalton <arda@allwinnertech.com> Reviewed-by:
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Jaegeuk Kim authored
Otherwise, pending checkpoints can contribute a race condition to give a quota warning. - Thread - checkpoint thread add checkpoints to the list do_remount() down_write(&sb->s_umount); f2fs_remount() block_operations() down_read_trylock(&sb->s_umount) = 0 up_write(&sb->s_umount); f2fs_quota_sync() dquot_writeback_dquots() WARN_ON_ONCE(!rwsem_is_locked(&sb->s_umount)); Or, do_remount() down_write(&sb->s_umount); f2fs_remount() create a ckpt thread f2fs_enable_checkpoint() adds checkpoints wait for f2fs_sync_fs() trigger another pending checkpoint block_operations() down_read_trylock(&sb->s_umount) = 0 up_write(&sb->s_umount); f2fs_quota_sync() dquot_writeback_dquots() WARN_ON_ONCE(!rwsem_is_locked(&sb->s_umount)); Cc: stable@vger.kernel.org Reviewed-by: -
Jaegeuk Kim authored
This avoids -EINVAL when trying to freeze f2fs. Cc: stable@vger.kernel.org Reviewed-by:
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- Aug 30, 2022
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Chao Yu authored
Remove redundant sbi->gc_urgent_high_limited. Signed-off-by:
Chao Yu <chao.yu@oppo.com> Signed-off-by:
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Chao Yu authored
Previously, we supported to account FS_CDATA_READ_IO type IO only, in this patch, it adds to account more type IO for compressed file: - APP_BUFFERED_CDATA_IO - APP_MAPPED_CDATA_IO - FS_CDATA_IO - APP_BUFFERED_CDATA_READ_IO - APP_MAPPED_CDATA_READ_IO Signed-off-by:
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Eric Biggers authored
This is simpler, and as a side effect it replaces several uses of kmap_atomic() with its recommended replacement kmap_local_page(). Signed-off-by:
Eric Biggers <ebiggers@google.com> Reviewed-by:
Fabio M. De Francesco <fmdefrancesco@gmail.com> Reviewed-by:
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Jaegeuk Kim authored
We should decrease the frozen counter. Cc: stable@vger.kernel.org Fixes: 325163e9 ("f2fs: add gc_urgent_high_remaining sysfs node") Reviewed-by:
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Jaegeuk Kim authored
ATGC is using SSR which violates LFS mode used by zoned device. Reviewed-by:
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Bart Van Assche authored
There are two definitions of the is_signed_type() macro: one in <linux/overflow.h> and a second definition in <linux/trace_events.h>. As suggested by Linus, move the definition of the is_signed_type() macro into the <linux/compiler.h> header file. Change the definition of the is_signed_type() macro to make sure that it does not trigger any sparse warnings with future versions of sparse for bitwise types. Link: https://lore.kernel.org/all/CAHk-=whjH6p+qzwUdx5SOVVHjS3WvzJQr6mDUwhEyTf6pJWzaQ@mail.gmail.com/ Link: https://lore.kernel.org/all/CAHk-=wjQGnVfb4jehFR0XyZikdQvCZouE96xR_nnf5kqaM5qqQ@mail.gmail.com/ Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Cc: Steven Rostedt <rostedt@goodmis.org> Acked-by:
Kees Cook <keescook@chromium.org> Signed-off-by:
Bart Van Assche <bvanassche@acm.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.lwn.net/linuxLinus Torvalds authored
Pull documentation fixes from Jonathan Corbet: "A handful of fixes for documentation and the docs build system" * tag 'docs-6.0-fixes' of git://git.lwn.net/linux: docs/conf.py: add function attribute '__fix_address' to conf.py Docs/admin-guide/mm/damon/usage: fix the example code snip docs: Update version number from 5.x to 6.x in README.rst docs/ja_JP/SubmittingPatches: Remove reference to submitting-drivers.rst docs: kerneldoc-preamble: Test xeCJK.sty before loading
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- Aug 29, 2022
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mmLinus Torvalds authored
Pull more hotfixes from Andrew Morton: "Seventeen hotfixes. Mostly memory management things. Ten patches are cc:stable, addressing pre-6.0 issues" * tag 'mm-hotfixes-stable-2022-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: .mailmap: update Luca Ceresoli's e-mail address mm/mprotect: only reference swap pfn page if type match squashfs: don't call kmalloc in decompressors mm/damon/dbgfs: avoid duplicate context directory creation mailmap: update email address for Colin King asm-generic: sections: refactor memory_intersects bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem ocfs2: fix freeing uninitialized resource on ocfs2_dlm_shutdown Revert "memcg: cleanup racy sum avoidance code" mm/zsmalloc: do not attempt to free IS_ERR handle binder_alloc: add missing mmap_lock calls when using the VMA mm: re-allow pinning of zero pfns (again) vmcoreinfo: add kallsyms_num_syms symbol mailmap: update Guilherme G. Piccoli's email addresses writeback: avoid use-after-free after removing device shmem: update folio if shmem_replace_page() updates the page mm/hugetlb: avoid corrupting page->mapping in hugetlb_mcopy_atomic_pte
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Linus Torvalds authored
Pull bitmap fixes from Yury Norov: "Fix the reported issues, and implements the suggested improvements, for the version of the cpumask tests [1] that was merged with commit c41e8866 ("lib/test: introduce cpumask KUnit test suite"). These changes include fixes for the tests, and better alignment with the KUnit style guidelines" * tag 'bitmap-6.0-rc3' of github.com:/norov/linux: lib/cpumask_kunit: add tests file to MAINTAINERS lib/cpumask_kunit: log mask contents lib/test_cpumask: follow KUnit style guidelines lib/test_cpumask: fix cpu_possible_mask last test lib/test_cpumask: drop cpu_possible_mask full test
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Luca Ceresoli authored
My Bootlin address is preferred from now on. Link: https://lkml.kernel.org/r/20220826130515.3011951-1-luca.ceresoli@bootlin.com Signed-off-by:
Luca Ceresoli <luca.ceresoli@bootlin.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Atish Patra <atishp@atishpatra.org> Cc: Hans Verkuil <hverkuil-cisco@xs4all.nl> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org>
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Peter Xu authored
Yu Zhao reported a bug after the commit "mm/swap: Add swp_offset_pfn() to fetch PFN from swap entry" added a check in swp_offset_pfn() for swap type [1]: kernel BUG at include/linux/swapops.h:117! CPU: 46 PID: 5245 Comm: EventManager_De Tainted: G S O L 6.0.0-dbg-DEV #2 RIP: 0010:pfn_swap_entry_to_page+0x72/0xf0 Code: c6 48 8b 36 48 83 fe ff 74 53 48 01 d1 48 83 c1 08 48 8b 09 f6 c1 01 75 7b 66 90 48 89 c1 48 8b 09 f6 c1 01 74 74 5d c3 eb 9e <0f> 0b 48 ba ff ff ff ff 03 00 00 00 eb ae a9 ff 0f 00 00 75 13 48 RSP: 0018:ffffa59e73fabb80 EFLAGS: 00010282 RAX: 00000000ffffffe8 RBX: 0c00000000000000 RCX: ffffcd5440000000 RDX: 1ffffffffff7a80a RSI: 0000000000000000 RDI: 0c0000000000042b RBP: ffffa59e73fabb80 R08: ffff9965ca6e8bb8 R09: 0000000000000000 R10: ffffffffa5a2f62d R11: 0000030b372e9fff R12: ffff997b79db5738 R13: 000000000000042b R14: 0c0000000000042b R15: 1ffffffffff7a80a FS: 00007f549d1bb700(0000) GS:ffff99d3cf680000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000440d035b3180 CR3: 0000002243176004 CR4: 00000000003706e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> change_pte_range+0x36e/0x880 change_p4d_range+0x2e8/0x670 change_protection_range+0x14e/0x2c0 mprotect_fixup+0x1ee/0x330 do_mprotect_pkey+0x34c/0x440 __x64_sys_mprotect+0x1d/0x30 It triggers because pfn_swap_entry_to_page() could be called upon e.g. a genuine swap entry. Fix it by only calling it when it's a write migration entry where the page* is used. [1] https://lore.kernel.org/lkml/CAOUHufaVC2Za-p8m0aiHw6YkheDcrO-C3wRGixwDS32VTS+k1w@mail.gmail.com/ Link: https://lkml.kernel.org/r/20220823221138.45602-1-peterx@redhat.com Fixes: 6c287605 ("mm: remember exclusively mapped anonymous pages with PG_anon_exclusive") Signed-off-by:
Peter Xu <peterx@redhat.com> Reported-by:
Yu Zhao <yuzhao@google.com> Tested-by:
David Hildenbrand <david@redhat.com> Cc: "Huang, Ying" <ying.huang@intel.com> Cc: <stable@vger.kernel.org> Signed-off-by:
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Phillip Lougher authored
The decompressors may be called while in an atomic section. So move the kmalloc() out of this path, and into the "page actor" init function. This fixes a regression introduced by commit f268eedd ("squashfs: extend "page actor" to handle missing pages") Link: https://lkml.kernel.org/r/20220822215430.15933-1-phillip@squashfs.org.uk Fixes: f268eedd ("squashfs: extend "page actor" to handle missing pages") Reported-by:
Chris Murphy <lists@colorremedies.com> Signed-off-by:
Phillip Lougher <phillip@squashfs.org.uk> Cc: <stable@vger.kernel.org> Signed-off-by:
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Badari Pulavarty authored
When user tries to create a DAMON context via the DAMON debugfs interface with a name of an already existing context, the context directory creation fails but a new context is created and added in the internal data structure, due to absence of the directory creation success check. As a result, memory could leak and DAMON cannot be turned on. An example test case is as below: # cd /sys/kernel/debug/damon/ # echo "off" > monitor_on # echo paddr > target_ids # echo "abc" > mk_context # echo "abc" > mk_context # echo $$ > abc/target_ids # echo "on" > monitor_on <<< fails Return value of 'debugfs_create_dir()' is expected to be ignored in general, but this is an exceptional case as DAMON feature is depending on the debugfs functionality and it has the potential duplicate name issue. This commit therefore fixes the issue by checking the directory creation failure and immediately return the error in the case. Link: https://lkml.kernel.org/r/20220821180853.2400-1-sj@kernel.org Fixes: 75c1c2b5 ("mm/damon/dbgfs: support multiple contexts") Signed-off-by:Badari Pulavarty <badari.pulavarty@intel.com> Signed-off-by:
SeongJae Park <sj@kernel.org> Cc: <stable@vger.kernel.org> [ 5.15.x] Signed-off-by:
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Colin Ian King authored
Colin King is working on kernel janitorial fixes in his spare time and using his Intel email is confusing. Use his gmail account as the default email address. Link: https://lkml.kernel.org/r/20220817212753.101109-1-colin.i.king@gmail.com Signed-off-by:
Colin Ian King <colin.i.king@gmail.com> Signed-off-by:
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