- 08 Sep, 2017 2 commits
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Yunlei He authored
Thread A: Thread B: -f2fs_getxattr -lookup_all_xattrs -xnid = F2FS_I(inode)->i_xattr_nid; -f2fs_setxattr -__f2fs_setxattr -write_all_xattrs -truncate_xattr_node ... ... -write_checkpoint ... ... -alloc_nid <- nid reuse -get_node_page -f2fs_bug_on <- nid != node_footer->nid It's need a rw_sem to avoid the race Signed-off-by:Yunlei He <heyunlei@huawei.com> Reviewed-by:
Chao Yu <yuchao0@huawei.com> Signed-off-by:
Jaegeuk Kim <jaegeuk@kernel.org>
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Jaegeuk Kim authored
This patch refactors get_lock_data_page() to handle encryption case directly. In order to do that, it introduces common f2fs_submit_page_read(). Reviewed-by:
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- 06 Sep, 2017 2 commits
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Jaegeuk Kim authored
This patch renames functions regarding to buffer management via META_MAPPING used for encrypted blocks especially. We can actually use them in generic way. Reviewed-by:
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Jaegeuk Kim authored
This patch replaces (f2fs_encrypted_inode() && S_ISREG()) with f2fs_encrypted_file(), which gives no functional change. Reviewed-by:
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- 05 Sep, 2017 8 commits
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Yunlong Song authored
This reverts commit b7b7c4cf. se->ckpt_valid_blocks will never be smaller than se->valid_blocks, so just remove get_ssr_cost. Signed-off-by:
Yunlong Song <yunlong.song@huawei.com> Signed-off-by:
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Arvind Yadav authored
super_operations are not supposed to change at runtime. "struct super_block" working with super_operations provided by <linux/fs.h> work with const super_operations. So mark the non-const structs as const Signed-off-by:
Arvind Yadav <arvind.yadav.cs@gmail.com> Reviewed-by:
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Chao Yu authored
In scenario of remount_ro vs flush, after flush_thread exits in ->remount_fs, flusher will only clean up golbal issue_list, but without waking up flushers waiting on that list, result in hang related user threads. In order to fix this issue, this patch enables the flusher to take charge of issue_flush thread: executes merged flush command, and wake up all sleeping flushers. Fixes: 5eba8c5d ("f2fs: fix to access nullified flush_cmd_control pointer") Signed-off-by:
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Chao Yu authored
Previously, we will miss merging flush command during fsync due to below race condition: Thread A Thread B Thread C - f2fs_issue_flush - atomic_read(&issing_flush) - f2fs_issue_flush - atomic_read(&issing_flush) - f2fs_issue_flush - atomic_read(&issing_flush) - atomic_inc(&issing_flush) - atomic_inc(&issing_flush) - atomic_inc(&issing_flush) - submit_flush_wait - submit_flush_wait - submit_flush_wait It needs to use atomic_inc_return instead to avoid such race. Signed-off-by:
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Chao Yu authored
allocate_segment_by_default is the only caller of change_curseg passing @reuse with 'false', but commit 763bfe1b ("f2fs: remove reusing any prefree segments") removes the calling, after that, @reuse in change_curseg always be true, so, let's clean up the unneeded parameter. Signed-off-by:
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Chao Yu authored
f2fs enables hash-indexed directory by default, so we need to tag FS_INDEX_FL in inode::i_flags during directory creataion, in order to show correct status of inode in lsattr: Before: ------------------- /mnt/f2fs/dir/ After: -----------I------- /mnt/f2fs/dir/ Signed-off-by:
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Jaegeuk Kim authored
If another thread already made the page dirtied or writebacked, we must avoid to verify checksum. If we got an error, we need to remove its uptodate as well. Reviewed-by:
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Jaegeuk Kim authored
This patch fixes "f2fs: support inode checksum". The recovered inode page will be rewritten with valid checksum. Reviewed-by:
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- 29 Aug, 2017 8 commits
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Chao Yu authored
Sqlite only cares about synchronization of file data instead of other data unrelated attribute of inode, so in commit flow, call fdatasync is enough. Signed-off-by:
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Chao Yu authored
We won't wait DIO synchronously when doing AIO, so there will be potential IO reorder in between AIO and GC, which will cause data corruption. This patch adds inode_dio_wait to serialize aio and data GC to avoid this issue. Signed-off-by:
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Jaegeuk Kim authored
This patch fixes to avoid needless wake ups. Reviewed-by:
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Jaegeuk Kim authored
If file offset is insane, we have to return error instead of kernel panic. Reported-by:
Eric Zhang <followme999@163.com> Signed-off-by:
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Chao Yu authored
If file was not opened with atomic write mode, but user uses atomic write ioctl to fsync datas, in the flow, we should not fsync that file with atomic write mode. Fixes: 608514de ("f2fs: set fsync mark only for the last dnode") Signed-off-by:
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Chao Yu authored
This patch fixes to clear FI_HOT_DATA correctly in below path: - error handling in f2fs_ioc_start_atomic_write - after commit atomic write in f2fs_ioc_commit_atomic_write - after drop atomic write in drop_inmem_pages Signed-off-by:
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Chao Yu authored
In f2fs_issue_flush, due to out-of-order execution of CPU, wake_up can be called before we insert issue_list, result in long latency of wait_for_completion. Fix this by adding smp_mb() to force the order of related codes. Signed-off-by:
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Jaegeuk Kim authored
It's time to issue all the discard commands, if user sets the idle time. Reviewed-by:
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- 21 Aug, 2017 8 commits
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Chao Yu authored
Commit d618ebaf ("f2fs: enable small discard by default") enables f2fs to issue 4K size discard in real-time discard mode. However, issuing smaller discard may cost more lifetime but releasing less free space in flash device. Since f2fs has ability of separating hot/cold data and garbage collection, we can expect that small-sized invalid region would expand soon with OPU, deletion or garbage collection on valid datas, so it's better to delay or skip issuing smaller size discards, it could help to reduce overmuch consumption of IO bandwidth and lifetime of flash storage. This patch makes f2fs selectng 64K size as its default minimal granularity, and issue discard with the size which is not smaller than minimal granularity. Also it exposes discard granularity as sysfs entry for configuration in different scenario. Jaegeuk Kim: We must issue all the accumulated discard commands when fstrim is called. So, I've added pend_list_tag[] to indicate whether we should issue the commands or not. If tag sets P_ACTIVE or P_TRIM, we have to issue them. P_TRIM is set once at a time, given fstrim trigger. In addition, issue_discard_thread is calling too much due to the number of discard commands remaining in the pending list. I added a timer to control it likewise gc_thread. Signed-off-by:
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Yunlong Song authored
Signed-off-by:
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Jaegeuk Kim authored
We need to check HOT_DATA to truncate any previous data block when doing roll-forward recovery. Cc: <stable@vger.kernel.org> Reviewed-by:
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Chao Yu authored
This patch adds tracepoint for f2fs_gc. Signed-off-by:
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Chao Yu authored
During atomic committing, if we encounter -ENOMEM in revoke path, it's better to give a chance to retry revoking. Signed-off-by:
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Jaegeuk Kim authored
If we set CP_ERROR_FLAG in roll-forward error, f2fs is no longer to proceed any IOs due to f2fs_cp_error(). But, for example, if some stale data is involved on roll-forward process, we're able to get -ENOENT, getting fs stuck. If we get any error, let fill_super set SBI_NEED_FSCK and try to recover back to stable point. Cc: <stable@vger.kernel.org> Reviewed-by:
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Qiuyang Sun authored
Currently, the two flags F2FS_GET_BLOCK_[READ|DIO] are totally equivalent and can be used interchangably in all scenarios they are involved in. Neither of the flags is referenced in f2fs_map_blocks(), making them both the default case. To remove the ambiguity, this patch merges both flags into F2FS_GET_BLOCK_DEFAULT, and introduces an enum for all distinct flags. Signed-off-by:
Qiuyang Sun <sunqiuyang@huawei.com> Reviewed-by:
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Chao Yu authored
This patch supports to enable f2fs to accept quota information through mount option: - {usr,grp,prj}jquota=<quota file path> - jqfmt=<quota type> Then, in ->mount flow, we can recover quota file during log replaying, by this, journelled quota can be supported. Signed-off-by:
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- 15 Aug, 2017 5 commits
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Chao Yu authored
While comparing signed and unsigned variables, compiler will converts the signed value to unsigned one, due to this reason, {in,de}crease_sleep_time may return overflowed result. Signed-off-by: -
Chao Yu authored
We only need to sync quota file with appointed quota type instead of all types in f2fs_quota_{on,off}. Signed-off-by: -
Jaegeuk Kim authored
This patch adds a sysfs entry to control urgent mode for background GC. If this is set, background GC thread conducts GC with gc_urgent_sleep_time all the time. Reviewed-by:
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Jaegeuk Kim authored
We expect cold files write data sequentially, but sometimes some of small data can be updated, which incurs fragmentation. Let's avoid that. Reviewed-by:
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Yunlong Song authored
The current size value is not correct and will miss bitmap check. Signed-off-by:
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- 10 Aug, 2017 3 commits
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Chao Yu authored
This patch enables inner app/fs io stats and introduces below virtual fs nodes for exposing stats info: /sys/fs/f2fs/<dev>/iostat_enable /proc/fs/f2fs/<dev>/iostat_info Signed-off-by:
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Yunlong Song authored
Signed-off-by:
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Yunlong Song authored
When cur_valid_map passes the f2fs_test_and_set(,clear)_bit test, cur_valid_map_mir update is skipped unlikely, so fix it. The fix now changes the mirror check together with cur_valid_map all the time. Signed-off-by:
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- 04 Aug, 2017 4 commits
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Jaegeuk Kim authored
This patch reduces contention of printks. Signed-off-by: -
Jaegeuk Kim authored
This patch exposes what features are supported by current f2fs build to sysfs entry via: /sys/fs/f2fs/features/ /sys/fs/f2fs/dev/features Reviewed-by:
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Chao Yu authored
This patch adds to support inode checksum in f2fs. Signed-off-by:
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Jaegeuk Kim authored
This must return size, not error number. Signed-off-by:
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