- 05 Apr, 2017 2 commits
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Chao Yu authored
Adds to count discard command entry and show the number in debugfs, also fix to add cost of discard command cache into total comsumed memory footprint. Signed-off-by:
Chao Yu <yuchao0@huawei.com> Signed-off-by:
Jaegeuk Kim <jaegeuk@kernel.org>
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Chao Yu authored
Show historical count of flush command and discard command. Signed-off-by:
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- 30 Mar, 2017 3 commits
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Jaegeuk Kim authored
- has_not_enough_free_secs node_secs: 0 dent_secs: 0 freed:0 free_segments:103 reserved:104 - f2fs_gc - get_victim_by_default alloc_mode 0, gc_mode 1, max_search 2672, offset 4654, ofs_unit 1 - do_garbage_collect start_segno 3976, end_segno 3977 type 0 - is_alive nid 22797, blkaddr 2131882, ofs_in_node 0, version 0x8/0x0 - gc_data_segment 766, segno 3976, block 512/426 not alive So, this patch fixes subtle corrupted case where node version does not match to summary version which results in infinite loop by gc. Reported-by:Yunlei He <heyunlei@huawei.com> Signed-off-by:
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Jaegeuk Kim authored
This patch initiates SSR much eariler, resulting in less FG_GC. Signed-off-by: -
Jaegeuk Kim authored
In order to give more spatial locality, this patch changes the block allocation policy which assigns beginning of partition for small and hot data/node blocks. In order to do this, we set noheap allocation by default and introduce another mount option, heap, to reset it back. Signed-off-by:
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- 28 Mar, 2017 1 commit
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Jaegeuk Kim authored
This patch fixes missing increased max cost caused by a patch that we increased cose of data segments in greedy algorithm. Cc: <stable@vger.kernel.org> # v4.10+ Fixes: b9cd2061 "f2fs: node segment is prior to data segment selected victim" Signed-off-by:
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- 25 Mar, 2017 1 commit
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Yunlei He authored
This patch allow write data to normal file when writting new checkpoint. We relax three limitations for write_begin path: 1. data allocation 2. node allocation 3. variables in checkpoint Signed-off-by:
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- 24 Mar, 2017 7 commits
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Chao Yu authored
In this patch, we change xattr block disk layout as below: Before: xattr node block layout +---------------------------------------------+---------------+-------------+ | node block xattr entries | reserved | node footer | | 4068 Bytes | 4 Bytes | 24 Bytes | In memory layout +--------------------+---------------------------------+--------------------+ | inline xattr | node block xattr entries | reserved | | 200 Bytes | 4068 Bytes | 4 Bytes | After: xattr node block layout +-------------------------------------------------------------+-------------+ | node block xattr entries | node footer | | 4072 Bytes | 24 Bytes | In memory layout +--------------------+---------------------------------+--------------------+ | inline xattr | node block xattr entries | reserved | | 200 Bytes | 4072 Bytes | 4 Bytes | With this change, we don't need to reserve additional space in node block, just keep reserved space in logical in-memory layout. So that it would help to enlarge valid free space of xattr node block. As tested, generic/026 shows max stored xattr entires number increases from 531 to 532 when inline_xattr option is enabled. Signed-off-by:
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Chao Yu authored
1. don't allocate redundant memory in read_all_xattrs. 2. introduce RESERVED_XATTR_SIZE for cleanup. Signed-off-by:
Kinglong Mee <kinglongmee@gmail.com> Signed-off-by:
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Chao Yu authored
Don't track volatile file in dirty inode list, otherwise with data_flush option, background thread will entry into endless loop for flushing journal file's pages. Signed-off-by:
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Chao Yu authored
This patch adds to show the max number of volatile operations which are conducting concurrently. Signed-off-by:
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Chao Yu authored
In below concurrent case, allocated nid can be loaded into free nid cache and be allocated again. Thread A Thread B - f2fs_create - f2fs_new_inode - alloc_nid - __insert_nid_to_list(ALLOC_NID_LIST) - f2fs_balance_fs_bg - build_free_nids - __build_free_nids - scan_nat_page - add_free_nid - __lookup_nat_cache - f2fs_add_link - init_inode_metadata - new_inode_page - new_node_page - set_node_addr - alloc_nid_done - __remove_nid_from_list(ALLOC_NID_LIST) - __insert_nid_to_list(FREE_NID_LIST) This patch makes nat cache lookup and free nid list operation being atomical to avoid this race condition. Signed-off-by: -
Yunlei He authored
Use set_page_private marcro instead of operte page struct directly Signed-off-by:
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Chao Yu authored
When doing garbage collection, we try to record segment offset which locates at next one of last victim, using it as the start offset in next searching. But in some corner cases, recorded offset may cross the end of main segment area, it will cause incorrectly searching in dirty_segmap bitmap. This patch adds modular operation to avoid this issue. Reported-by:
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- 22 Mar, 2017 26 commits
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Kinglong Mee authored
Signed-off-by:
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Kinglong Mee authored
The memory size of f2fs_stat_info also should be calculated. Signed-off-by:
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Kinglong Mee authored
After filemap_write_and_wait_range fail, the FI_ATOMIC_FILE flags is removed, so that f2fs should not increase the stat of atomic_write. Signed-off-by:
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Chao Yu authored
Signed-off-by:
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Kinglong Mee authored
The crc_offset towards or beyond the end of block is wrong, sanity check it. Signed-off-by:
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Kinglong Mee authored
As discuss with Jaegeuk and Chao, "Once checkpoint is done, f2fs doesn't need to update there-in filename at all." The disk-level filename is used only one case, 1. create a file A under a dir 2. sync A 3. godown 4. umount 5. mount (roll_forward) Only the rename/cross_rename changes the filename, if it happens, a. between step 1 and 2, the sync A will caused checkpoint, so that, the roll_forward at step 5 never happens. b. after step 2, the roll_forward happens, file A will roll forward to the result as after step 1. So that, any updating the disk filename is useless, just cleanup it. Signed-off-by:
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Chao Yu authored
free_nid_bitmap and free_nid_count in update_free_nid_bitmap should be updated atomically, use nid_list_lock cover them to avoid race in concurrent scenario. Signed-off-by:
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Kinglong Mee authored
For f2fs_read_data_pages, the f2fs_mpage_readpages gets "page == NULL", so that, the prefetchw(&page->flags) is operated on NULL. Fixes: f1e88660 ("f2fs: expose f2fs_mpage_readpages") Signed-off-by:
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Kinglong Mee authored
Clear FI_DATA_EXIST flag atomically in truncate_inline_inode, and the return value from truncate_inline_inode isn't used, remove it. Signed-off-by:
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Kinglong Mee authored
It's needless of mnt_want_write_file for arguments checking. Signed-off-by:
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Kinglong Mee authored
The inode_newsize_ok is better than only checking the maxbytes, eg. the rlimit etc. Signed-off-by:
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Kinglong Mee authored
If move file range return error, the data copied to user-space is duplicate. Signed-off-by:
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Kinglong Mee authored
Signed-off-by:
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Fan Li authored
use a slightly simpler expression to calculate nat block with nid. Signed-off-by:
Fan Li <fanofcode.li@samsung.com> Signed-off-by:
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Jaegeuk Kim authored
Inject a fault during f2fs_truncate(). Signed-off-by:
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Sheng Yong authored
This patch checks the parameter range passed by ioctl to void that range exceeds the max_file_blocks limit. Signed-off-by:
Sheng Yong <shengyong1@huawei.com> Reviewed-by:
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Sheng Yong authored
Signed-off-by:
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Yunlei He authored
This patch add a function to punch discard command if one segment reuse before discard. Split this segment from multi-segments discard range, and discard the left bigger range. Signed-off-by:
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Jaegeuk Kim authored
Let's allocate a bio when issuing discard commands later. Signed-off-by: -
Yunlei He authored
Skip writeback meta pages if cp_mutex lock acquire failed, cp will flush dirty pages instead. Signed-off-by:
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Jaegeuk Kim authored
This case is not caused by fsck.f2fs. User needs to retry mount. Signed-off-by: -
Kinglong Mee authored
Fixes: 3cf45747 ("f2fs: introduce get_next_page_offset to speed up SEEK_DATA") Signed-off-by:
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Kinglong Mee authored
The nat entry is listed from the set list for freeing, it's duplicate to do radix tree lookup again. Signed-off-by:
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Kinglong Mee authored
The root device's issue flush trace is missing, add it and tracing the result from submit. Fixes d50aaeec ("f2fs: show actual device info in tracepoints") Signed-off-by:
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Chao Yu authored
Now f2fs only supports volatile writes for journal db regular file. Signed-off-by:
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Jaegeuk Kim authored
The atomic writes only supports regular files for database. Signed-off-by:
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