- Feb 03, 2023
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Christoph Hellwig authored
Remove __refresh_next_blkoff by opencoding the SSR vs LFS segment check in the only caller, and then add helpers for SSR block selection and blkoff randomization instead. Signed-off-by:
Christoph Hellwig <hch@lst.de> Reviewed-by:
Chao Yu <chao@kernel.org> Signed-off-by:
Jaegeuk Kim <jaegeuk@kernel.org>
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Christoph Hellwig authored
Just fold this trivial wrapper into the only caller. Signed-off-by:
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Christoph Hellwig authored
Simplify the check whether to allocate a new segment or reuse an open one. Signed-off-by:
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Christoph Hellwig authored
Add a helper to return the valid blocks on log and SSR segments, and replace the last two uses of curseg_blkoff with it. Signed-off-by:
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Christoph Hellwig authored
For each loop add a local curseg_info pointer insted of looking it up for each of the three fields. Signed-off-by:
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- Feb 01, 2023
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Christoph Hellwig authored
This function just assigns a summary entry. This can be done entirely typesafe with an open code struct assignment that relies on array indexing. Signed-off-by:
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Chao Yu authored
Commit 7a10f017 ("f2fs: don't give partially written atomic data from process crash") attempted to drop atomic write data after process crash, however, f2fs_abort_atomic_write() may be called from noncrash case, fix it by adding missed PF_EXITING check condition f2fs_file_flush(). - application crashs - do_exit - exit_signals -- sets PF_EXITING - exit_files - put_files_struct - close_files - filp_close - flush (f2fs_file_flush) - check atomic_write_task && PF_EXITING - f2fs_abort_atomic_write Fixes: 7a10f017 ("f2fs: don't give partially written atomic data from process crash") Signed-off-by:
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Yangtao Li authored
Files created by truncate have a size but no blocks, so they can be allowed to set compression option. Fixes: e1e8debe ("f2fs: add F2FS_IOC_SET_COMPRESS_OPTION ioctl") Signed-off-by:
Yangtao Li <frank.li@vivo.com> Reviewed-by:
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Eric Biggers authored
When converting an inline directory to a regular one, f2fs is leaking uninitialized memory to disk because it doesn't initialize the entire directory block. Fix this by zero-initializing the block. This bug was introduced by commit 4ec17d68 ("f2fs: avoid unneeded initializing when converting inline dentry"), which didn't consider the security implications of leaking uninitialized memory to disk. This was found by running xfstest generic/435 on a KMSAN-enabled kernel. Fixes: 4ec17d68 ("f2fs: avoid unneeded initializing when converting inline dentry") Cc: <stable@vger.kernel.org> # v4.3+ Signed-off-by:
Eric Biggers <ebiggers@google.com> Reviewed-by:
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Alexander Potapenko authored
When aops->write_begin() does not initialize fsdata, KMSAN may report an error passing the latter to aops->write_end(). Fix this by unconditionally initializing fsdata. Suggested-by:
Eric Biggers <ebiggers@kernel.org> Fixes: 95ae251f ("f2fs: add fs-verity support") Signed-off-by:
Alexander Potapenko <glider@google.com> Reviewed-by:
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Yangtao Li authored
hot_data_age_threshold is a non-zero positive number, and condition 2 includes condition 1, so there is no need to additionally judge whether t is 0. And let's remove it. Signed-off-by:
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Yangtao Li authored
f2fs: return true if all cmd were issued or no cmd need to be issued for f2fs_issue_discard_timeout() f2fs_issue_discard_timeout() returns whether discard cmds are dropped, which does not match the meaning of the function. Let's change it to return whether all discard cmd are issued. After commit 4d674904 ("f2fs: Don't create discard thread when device doesn't support realtime discard"), f2fs_issue_discard_timeout() is alse called by f2fs_remount(). Since the comments of f2fs_issue_discard_timeout() doesn't make much sense, let's update it. Signed-off-by:
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Yangtao Li authored
commit 3fde13f8 ("f2fs: compress: support compress level") introduce compress level, which macro(COMPRESS_LEVEL_OFFSET) is 8, But use wrong comment about compress level. Let's fix it. Signed-off-by:
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Yangtao Li authored
Convert to show discard_unit only when has DISCARD opt. Signed-off-by:
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Chao Yu authored
In do_read_inode(), sanity_check_inode() should be called after f2fs_init_read_extent_tree(), fix it. Fixes: 72840ccc ("f2fs: allocate the extent_cache by default") Signed-off-by:
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Chao Yu authored
f2fs_rename() has checked CP_ERROR_FLAG, so remove redundant check in f2fs_create_whiteout(). Signed-off-by:
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- Jan 31, 2023
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Chao Yu authored
Otherwise, last .atomic_write_task will be remained in structure f2fs_inode_info, resulting in aborting atomic_write accidentally in race case. Meanwhile, clear original_i_size as well. Fixes: 7a10f017 ("f2fs: don't give partially written atomic data from process crash") Signed-off-by:
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Chao Yu authored
Commit 3db1de0e ("f2fs: change the current atomic write way") removed old tracepoints, but it missed to add new one, this patch fixes to introduce trace_f2fs_replace_atomic_write_block to trace atomic_write commit flow. Fixes: 3db1de0e ("f2fs: change the current atomic write way") Signed-off-by:
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Yangtao Li authored
The current discard_io_aware_gran is a fixed value, change it to be configurable through the sys node. Signed-off-by:
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Yangtao Li authored
No need to initialize idx twice. BTW, remove the unnecessary cnt variable. Signed-off-by:
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Yangtao Li authored
In this patch, it adds to account flush count. Signed-off-by:
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- Jan 12, 2023
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Yangtao Li authored
Previously, we supported to account iostat io_bytes, in this patch, it adds to account iostat count and avg_bytes: time: 1671648667 io_bytes count avg_bytes [WRITE] app buffered data: 31 2 15 Signed-off-by: -
Yangtao Li authored
discard_wake and gc_wake have only two values, 0 or 1. So there is no need to use int type to store them. BTW, move discard_wake to the end of the discard_cmd_control structure. Before: - sizeof(struct discard_cmd_control): 8392 After move: - sizeof(struct discard_cmd_control): 8384 Signed-off-by:
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Yangtao Li authored
Commit 1cd2e6d5 ("f2fs: define MIN_DISCARD_GRANULARITY macro") introduce it, let's convert to use MIN_DISCARD_GRANULARITY macro. Signed-off-by:
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Yangtao Li authored
There is no need to additionally use f2fs_show_injection_info() to output information. Concatenate time_to_inject() and __time_to_inject() via a macro. In the new __time_to_inject() function, pass in the caller function name and parent function. In this way, we no longer need the f2fs_show_injection_info() function, and let's remove it. Suggested-by:
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Yangtao Li authored
For example, f2fs_collapse_range(), f2fs_collapse_range(), f2fs_insert_range(), the functions used in f2fs_fallocate() are all prefixed with f2fs_, so let's keep the name consistent. Signed-off-by:
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Yangtao Li authored
Just cleanup. Signed-off-by:
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Yangtao Li authored
f2fs_init_compress_mempool() only initializes the memory pool during the f2fs module init phase. Let's mark it as __init like any other function. Signed-off-by:
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Yangtao Li authored
The current logic, regardless of whether CONFIG_BLK_DEV_ZONED is enabled or not, will judge whether discard_unit is SECTION, when f2fs_sb_has_blkzoned. In fact, when CONFIG_BLK_DEV_ZONED is not enabled, this judgment is a path that will never be accessed. At this time, -EINVAL will be returned in the parse_options function, accompanied by the message "Zoned block device support is not enabled". Let's wrap this discard_unit judgment with CONFIG_BLK_DEV_ZONED. Signed-off-by:
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Zhang Qilong authored
We can start freeing cluster page(s) from which compression is not used. It will get better performance. Signed-off-by:
Zhang Qilong <zhangqilong3@huawei.com> Signed-off-by:
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Yangtao Li authored
>From now on, f2fs also has its own patchwork link, thanks to Jaegeuk for starting this tool! Let's update it to f2fs entry. Signed-off-by:
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- Jan 07, 2023
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Yuwei Guan authored
Any of the following scenarios will send more than the number of max_requests at a time, which will not meet the design of the max_requests limit. - Set max_ordered_discard larger than discard_granularity from userspace. - It is a small size device, discard_granularity can be tuned to 1 in f2fs_tuning_parameters(). We need to deliver the accumulated @issued to __issue_discard_cmd_orderly() to meet the max_requests limit. BTW, convert the parameter type of @issued in __submit_discard_cmd(). Signed-off-by:
Yuwei Guan <Yuwei.Guan@zeekrlife.com> Cc: Bagas Sanjaya <bagasdotme@gmail.com> Reviewed-by:
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Chao Yu authored
After below changes: commit 14db0b3c ("fscrypt: stop using PG_error to track error status") commit 98dc08ba ("fsverity: stop using PG_error to track error status") There is no place in f2fs we will set PG_error flag in page, let's remove other PG_error usage in f2fs, as a step towards freeing the PG_error flag for other uses. Cc: Eric Biggers <ebiggers@kernel.org> Signed-off-by:
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Chao Yu authored
We supported configuring fault injection parameter via sysfs w/ below commits, however, we forgot to add doc entry, fix it. commit 08796897 ("f2fs: add fault injection to sysfs") /sys/fs/f2fs/fault_injection/fault_* commit 1ecc0c5c ("f2fs: support configuring fault injection per superblock") /sys/fs/f2fs/<device>/fault_* Cc: Sheng Yong <shengyong@oppo.com> Signed-off-by:
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Chao Yu authored
There is a potential deadlock reported by syzbot as below: F2FS-fs (loop2): invalid crc value F2FS-fs (loop2): Found nat_bits in checkpoint F2FS-fs (loop2): Mounted with checkpoint version = 48b305e4 ====================================================== WARNING: possible circular locking dependency detected 6.1.0-rc8-syzkaller-33330-ga5541c0811a0 #0 Not tainted ------------------------------------------------------ syz-executor.2/32123 is trying to acquire lock: ffff0000c0e1a608 (&mm->mmap_lock){++++}-{3:3}, at: __might_fault+0x54/0xb4 mm/memory.c:5644 but task is already holding lock: ffff0001317c6088 (&sbi->sb_lock){++++}-{3:3}, at: f2fs_down_write fs/f2fs/f2fs.h:2205 [inline] ffff0001317c6088 (&sbi->sb_lock){++++}-{3:3}, at: f2fs_ioc_get_encryption_pwsalt fs/f2fs/file.c:2334 [inline] ffff0001317c6088 (&sbi->sb_lock){++++}-{3:3}, at: __f2fs_ioctl+0x1370/0x3318 fs/f2fs/file.c:4151 which lock already depends on the new lock. Chain exists of: &mm->mmap_lock --> &nm_i->nat_tree_lock --> &sbi->sb_lock Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&sbi->sb_lock); lock(&nm_i->nat_tree_lock); lock(&sbi->sb_lock); lock(&mm->mmap_lock); Let's try to avoid above deadlock condition by moving __might_fault() out of sbi->sb_lock coverage. Fixes: 95fa90c9 ("f2fs: support recording errors into superblock") Link: https://lore.kernel.org/linux-f2fs-devel/000000000000cd5fe305ef617fe2@google.com/T/#u Reported-by:<syzbot+4793f6096d174c90b4f7@syzkaller.appspotmail.com> Signed-off-by:
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Yangtao Li authored
IS_F2FS_IPU_* macro can be used to identify whether f2fs ipu related policies are enabled. BTW, convert to use BIT() instead of open code. Signed-off-by:
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Christoph Hellwig authored
Add a is_hole local variable to figure out if the block number might need allocation, and untangle to logic to report the hole or fill it with a block allocation. Signed-off-by:
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Christoph Hellwig authored
Factor out a helper to return a hole when no dnode was found. Signed-off-by:
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Christoph Hellwig authored
Add a helper to deal with everything needed to return a f2fs_map_blocks structure based on a lookup in the extent cache. Signed-off-by:
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Christoph Hellwig authored
The create argument is always identicaly to map->m_may_create, so use that consistently. Signed-off-by:
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