- 23 Mar, 2020 4 commits
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Chao Yu authored
Fields in struct f2fs_super_block should be updated under coverage of sb_lock, fix to adjust update_sb_metadata() for that rule. Fixes: 04f0b2ea ("f2fs: ioctl for removing a range from F2FS") Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Sahitya Tummala authored
Add and set a new CP flag CP_RESIZEFS_FLAG during online resize FS to help fsck fix the metadata mismatch that may happen due to SPO during resize, where SB got updated but CP data couldn't be written yet. fsck errors - Info: CKPT version = 6ed7bccb Wrong user_block_count(2233856) [f2fs_do_mount:3365] Checkpoint is polluted Signed-off-by: Sahitya Tummala <stummala@codeaurora.org> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Sahitya Tummala authored
Even though online resize is successfully done, a SPO immediately after resize, still causes below error in the next mount. [ 11.294650] F2FS-fs (sda8): Wrong user_block_count: 2233856 [ 11.300272] F2FS-fs (sda8): Failed to get valid F2FS checkpoint This is because after FS metadata is updated in update_fs_metadata() if the SBI_IS_DIRTY is not dirty, then CP will not be done to reflect the new user_block_count. Signed-off-by: Sahitya Tummala <stummala@codeaurora.org> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
It's been observed that kzalloc() on lookup_all_xattrs() are called millions of times on Android, quickly becoming the top abuser of slub memory allocator. Use a dedicated kmem cache pool for xattr lookups to mitigate this. Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com> Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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- 19 Mar, 2020 16 commits
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Jaegeuk Kim authored
FG_GC needs to move entire section more quickly. Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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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
__f2fs_bio_alloc() won't fail due to memory pool backend, remove unneeded __GFP_NOFAIL flag in __f2fs_bio_alloc(). Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
With this newly introduced interface, user can get block number compression saved in target inode. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
If we are in write IO path, we need to avoid using GFP_KERNEL. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
In order to avoid polluting global slab cache namespace. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
As Geert Uytterhoeven reported: for parameter HZ/50 in congestion_wait(BLK_RW_ASYNC, HZ/50); On some platforms, HZ can be less than 50, then unexpected 0 timeout jiffies will be set in congestion_wait(). This patch introduces a macro DEFAULT_IO_TIMEOUT to wrap a determinate value with msecs_to_jiffies(20) to instead HZ/50 to avoid such issue. Quoted from Geert Uytterhoeven: "A timeout of HZ means 1 second. HZ/50 means 20 ms, but has the risk of being zero, if HZ < 50. If you want to use a timeout of 20 ms, you best use msecs_to_jiffies(20), as that takes care of the special cases, and never returns 0." Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Jaegeuk Kim authored
This fixes skipping GC when segment is full in large section. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Jaegeuk Kim authored
If first segment is empty and migration_granularity is 1, we can't move this at all. Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
There are three status for background gc: on, off and sync, it's a little bit confused to use test_opt(BG_GC) and test_opt(FORCE_FG_GC) combinations to indicate status of background gc. So let's remove F2FS_MOUNT_BG_GC and F2FS_MOUNT_FORCE_FG_GC mount options, and add F2FS_OPTION().bggc_mode with below three status to clean up codes and enhance bggc mode's scalability. enum { BGGC_MODE_ON, /* background gc is on */ BGGC_MODE_OFF, /* background gc is off */ BGGC_MODE_SYNC, /* * background gc is on, migrating blocks * like foreground gc */ }; Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
This patch removes F2FS_MOUNT_ADAPTIVE and F2FS_MOUNT_LFS mount options, and add F2FS_OPTION.fs_mode with below two status to indicate filesystem mode. enum { FS_MODE_ADAPTIVE, /* use both lfs/ssr allocation */ FS_MODE_LFS, /* use lfs allocation only */ }; It can enhance code readability and fs mode's scalability. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
Previously, 'norecovery' mount option will be shown as 'disable_roll_forward', fix to show original option name correctly. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
Just cleanup, no logic change. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
- rename datablock_addr() to data_blkaddr(). - wrap data_blkaddr() with f2fs_data_blkaddr() to clean up parameters. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Jaegeuk Kim authored
Let's show mounted time. Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Takashi Iwai authored
Since snprintf() returns the would-be-output size instead of the actual output size, the succeeding calls may go beyond the given buffer limit. Fix it by replacing with scnprintf(). Signed-off-by: Takashi Iwai <tiwai@suse.de> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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- 11 Mar, 2020 3 commits
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Chao Yu authored
If regular inode has no compressed cluster, allow using 'chattr -c' to remove its compress flag, recovering it to a non-compressed file. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
Compressed cluster can be generated during dirty data writeback, if there is dirty pages on compressed inode, it needs to disable converting compressed inode to non-compressed one. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
stat_inc_compr_inode() needs to check FI_COMPRESSED_FILE flag, so in f2fs_disable_compressed_file(), we should call stat_dec_compr_inode() before clearing FI_COMPRESSED_FILE flag. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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- 10 Mar, 2020 7 commits
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Jaegeuk Kim authored
This fixes the incorrect failure when enabling project quota on casefold-enabled file. Cc: Daniel Rosenberg <drosen@google.com> Cc: kernel-team@android.com Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
In compress cluster, if physical block number is less than logic page number, race condition will cause use-after-free issue as described below: - f2fs_write_compressed_pages - fio.page = cic->rpages[0]; - f2fs_outplace_write_data - f2fs_compress_write_end_io - kfree(cic->rpages); - kfree(cic); - fio.page = cic->rpages[1]; f2fs_write_multi_pages+0xfd0/0x1a98 f2fs_write_data_pages+0x74c/0xb5c do_writepages+0x64/0x108 __writeback_single_inode+0xdc/0x4b8 writeback_sb_inodes+0x4d0/0xa68 __writeback_inodes_wb+0x88/0x178 wb_writeback+0x1f0/0x424 wb_workfn+0x2f4/0x574 process_one_work+0x210/0x48c worker_thread+0x2e8/0x44c kthread+0x110/0x120 ret_from_fork+0x10/0x18 Fixes: 4c8ff709 ("f2fs: support data compression") Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
In f2fs_vm_page_mkwrite(), if inode is compress one, and current mmapped page locates in compressed cluster, we have to call f2fs_get_dnode_of_data() to get its physical block address before f2fs_wait_on_block_writeback(). Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
Lack of maintenance on comments may mislead developers, fix them. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
f2fs_inode.xattr_ver field was gone after commit d260081c ("f2fs: change recovery policy of xattr node block"), remove i_sem lock coverage in f2fs_setxattr() Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
This change solves below hangtask issue: INFO: task kworker/u16:1:58 blocked for more than 122 seconds. Not tainted 5.6.0-rc2-00590-g9983bdae4974e #11 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. kworker/u16:1 D 0 58 2 0x00000000 Workqueue: writeback wb_workfn (flush-179:0) Backtrace: (__schedule) from [<c0913234>] (schedule+0x78/0xf4) (schedule) from [<c017ec74>] (rwsem_down_write_slowpath+0x24c/0x4c0) (rwsem_down_write_slowpath) from [<c0915f2c>] (down_write+0x6c/0x70) (down_write) from [<c0435b80>] (f2fs_write_single_data_page+0x608/0x7ac) (f2fs_write_single_data_page) from [<c0435fd8>] (f2fs_write_cache_pages+0x2b4/0x7c4) (f2fs_write_cache_pages) from [<c043682c>] (f2fs_write_data_pages+0x344/0x35c) (f2fs_write_data_pages) from [<c0267ee8>] (do_writepages+0x3c/0xd4) (do_writepages) from [<c0310cbc>] (__writeback_single_inode+0x44/0x454) (__writeback_single_inode) from [<c03112d0>] (writeback_sb_inodes+0x204/0x4b0) (writeback_sb_inodes) from [<c03115cc>] (__writeback_inodes_wb+0x50/0xe4) (__writeback_inodes_wb) from [<c03118f4>] (wb_writeback+0x294/0x338) (wb_writeback) from [<c0312dac>] (wb_workfn+0x35c/0x54c) (wb_workfn) from [<c014f2b8>] (process_one_work+0x214/0x544) (process_one_work) from [<c014f634>] (worker_thread+0x4c/0x574) (worker_thread) from [<c01564fc>] (kthread+0x144/0x170) (kthread) from [<c01010e8>] (ret_from_fork+0x14/0x2c) Reported-and-tested-by: Ondřej Jirman <megi@xff.cz> Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
inode.i_blocks counts based on 512byte sector, we need to convert to 4kb sized block count before comparing to i_compr_blocks. In addition, add to print message when sanity check on inode compression configs failed. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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- 27 Feb, 2020 7 commits
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Chao Yu authored
Using f2fs_trylock_op() in f2fs_write_compressed_pages() to avoid potential deadlock like we did in f2fs_write_single_data_page(). Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
Otherwise, we can not distinguish the exact location of messages, when there are more than one places printing same message. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
In Struct compress_data, chksum field was never used, remove it. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
Unable to handle kernel NULL pointer dereference at virtual address 00000000 PC is at f2fs_free_dic+0x60/0x2c8 LR is at f2fs_decompress_pages+0x3c4/0x3e8 f2fs_free_dic+0x60/0x2c8 f2fs_decompress_pages+0x3c4/0x3e8 __read_end_io+0x78/0x19c f2fs_post_read_work+0x6c/0x94 process_one_work+0x210/0x48c worker_thread+0x2e8/0x44c kthread+0x110/0x120 ret_from_fork+0x10/0x18 In f2fs_free_dic(), we can not use f2fs_put_page(,1) to release dic->tpages[i], as the page's mapping is NULL. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Eric Biggers authored
When the compressed data of a cluster doesn't end on a page boundary, the remainder of the last page must be zeroed in order to avoid leaking uninitialized memory to disk. Fixes: 4c8ff709 ("f2fs: support data compression") Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Sahitya Tummala authored
There could be a scenario where f2fs_sync_meta_pages() will not ensure that all F2FS_DIRTY_META pages are submitted for IO. Thus, resulting in the below panic in do_checkpoint() - f2fs_bug_on(sbi, get_pages(sbi, F2FS_DIRTY_META) && !f2fs_cp_error(sbi)); This can happen in a low-memory condition, where shrinker could also be doing the writepage operation (stack shown below) at the same time when checkpoint is running on another core. schedule down_write f2fs_submit_page_write -> by this time, this page in page cache is tagged as PAGECACHE_TAG_WRITEBACK and PAGECACHE_TAG_DIRTY is cleared, due to which f2fs_sync_meta_pages() cannot sync this page in do_checkpoint() path. f2fs_do_write_meta_page __f2fs_write_meta_page f2fs_write_meta_page shrink_page_list shrink_inactive_list shrink_node_memcg shrink_node kswapd Signed-off-by: Sahitya Tummala <stummala@codeaurora.org> Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
There is a race condition that we may miss to wait for all node pages writeback, fix it. - fsync() - shrink - f2fs_do_sync_file - __write_node_page - set_page_writeback(page#0) : remove DIRTY/TOWRITE flag - f2fs_fsync_node_pages : won't find page #0 as TOWRITE flag was removeD - f2fs_wait_on_node_pages_writeback : wont' wait page #0 writeback as it was not in fsync_node_list list. - f2fs_add_fsync_node_entry Fixes: 50fa53ec ("f2fs: fix to avoid broken of dnode block list") Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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- 13 Feb, 2020 3 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 fixes from Will Deacon: "Summary below, but it's all reasonably straightforward. There are some more fixes on the horizon, but nothing disastrous yet. Summary: - Fix build when KASLR is enabled but CONFIG_ARCH_RANDOM is not set - Fix context-switching of SSBS state on systems that implement it - Fix spinlock compiler warning introduced during the merge window - Fix incorrect header inclusion (linux/clk-provider.h) - Use SYSCTL_{ZERO,ONE} instead of rolling our own static variables - Don't scream if optional SMMUv3 PMU irq is missing - Remove some unused function prototypes" * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: time: Replace <linux/clk-provider.h> by <linux/of_clk.h> arm64: Fix CONFIG_ARCH_RANDOM=n build perf/smmuv3: Use platform_get_irq_optional() for wired interrupt arm64/spinlock: fix a -Wunused-function warning arm64: ssbs: Fix context-switch when SSBS is present on all CPUs arm64: use shared sysctl constants arm64: Drop do_el0_ia_bp_hardening() & do_sp_pc_abort() declarations
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpioLinus Torvalds authored
Pull GPIO fixes from Linus Walleij: - Revert two patches to gpio_do_set_config() and implement the proper solution that works, also drop an unecessary call in set_config() - Fix up the lockdep class for hierarchical IRQ domains. - Remove some bridge code for line directions. - Fix a register access bug in the Xilinx driver. * tag 'gpio-v5.6-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: gpio: sifive: fix static checker warning spmi: pmic-arb: Set lockdep class for hierarchical irq domains gpio: xilinx: Fix bug where the wrong GPIO register is written to gpiolib: remove unnecessary argument from set_config call gpio: bd71828: Remove unneeded defines for GPIO_LINE_DIRECTION_IN/OUT MAINTAINERS: Sort entries in database for GPIO gpiolib: fix gpio_do_set_config() Revert "gpiolib: remove set but not used variable 'config'" Revert "gpiolib: Remove duplicated function gpio_do_set_config()"
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds authored
Pull crypto fix from Herbert Xu: "This fixes a Kconfig anomaly when lib/crypto is enabled without Crypto API" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: Kconfig - allow tests to be disabled when manager is disabled
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