- 06 Nov, 2017 14 commits
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Yunlong Song authored
This reverts commit 5e443818 The commit should be reverted because call sequence of below two parts of code must be kept: a. update sit information, it needs to be updated before segment allocation since latter allocation may trigger SSR, and SSR allocation needs latest valid block information of all segments. b. update segment status, it needs to be updated after segment allocation since we can skip updating current opened segment status. Fixes: 5e443818 ("f2fs: handle dirty segments inside refresh_sit_entry") Suggested-by:
Chao Yu <yuchao0@huawei.com> Signed-off-by:
Yunlong Song <yunlong.song@huawei.com> Reviewed-by:
Jaegeuk Kim <jaegeuk@kernel.org>
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Fan Li authored
This patch add a new function to move nid from one state to another. Move operation is heavily used, by adding a new function for it we can cut down some branches from several flow. Signed-off-by:
Fan li <fanofcode.li@samsung.com> Reviewed-by:
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Chao Yu authored
This patch exports min_ssr_segments threshold in sysfs to let user control triggering SSR allocation flexibly. Signed-off-by:
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Chao Yu authored
We have supported to issue discard in specified range during fstrim, it needs to return caller with successfully trimmed bytes in that range instead of bytes of invalid blocks which are scanned in checkpoint. Signed-off-by:
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Chao Yu authored
This patch adds to support bio allocation error injection to simulate out-of-memory test scenario. Signed-off-by:
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Chao Yu authored
This patch adds to support get_page error injection to simulate out-of-memory test scenario. Signed-off-by:
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Chao Yu authored
There are some missing sysfs entries' description in document, add them. Signed-off-by:
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Yunlong Song authored
It supports to extend reserved_blocks sysfs interface to be soft threshold, which allows user configure it exceeding current available user space. This patch also introduces a new sysfs interface called current_reserved_blocks, which shows the current blocks that have already been reserved. Signed-off-by:
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Jaegeuk Kim authored
This patch fixes recovering incomplete xattr entries remaining in inline xattr and xattr block, caused by any kind of errors. Reviewed-by:
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Chao Yu authored
Now, in product, more and more features based on file encryption were introduced, their demand of xattr space is increasing, however, inline xattr has fixed-size of 200 bytes, once inline xattr space is full, new increased xattr data would occupy additional xattr block which may bring us more space usage and performance regression during persisting. In order to resolve above issue, it's better to expand inline xattr size flexibly according to user's requirement. So this patch introduces new filesystem feature 'flexible inline xattr', and new mount option 'inline_xattr_size=%u', once mkfs enables the feature, we can use the option to make f2fs supporting flexible inline xattr size. To support this feature, we add extra attribute i_inline_xattr_size in inode layout, indicating that how many space inline xattr borrows from block address mapping space in inode layout, by this, we can easily locate and store flexible-sized inline xattr data in inode. Inode disk layout: +----------------------+ | .i_mode | | ... | | .i_ext | +----------------------+ | .i_extra_isize | | .i_inline_xattr_size |-----------+ | ... | | +----------------------+ | | .i_addr | | | - block address or | | | - inline data | | +----------------------+<---+ v | inline xattr | +---inline xattr range +----------------------+<---+ | .i_nid | +----------------------+ | node_footer | | (nid, ino, offset) | +----------------------+ Note that, we have to cnosider backward compatibility which reserved inline_data space, 200 bytes, all the time, reported by Sheng Yong. Previous inline data or directory always reserved 200 bytes in inode layout, even if inline_xattr is disabled. In order to keep inline_dentry's structure for backward compatibility, we get the space back only from inline_data. Signed-off-by:
Sheng Yong <shengyong1@huawei.com> Signed-off-by:
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Jaegeuk Kim authored
This patch shows whether checkpoint met any error case. Signed-off-by: -
Jaegeuk Kim authored
This patch adds to call quota_intialize in f2fs_set_acl, f2fs_unlink, and f2fs_rename. Reviewed-by:
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Jaegeuk Kim authored
This patch adds one sysfs entry to show # of dirty segments which can be used for gc timing by user. Reviewed-by:
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Jaegeuk Kim authored
This patch replaces to use cp_error flag instead of RDONLY for quota off. Reviewed-by:
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- 26 Oct, 2017 24 commits
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Colin Ian King authored
There are several assignments to variables that are redundant as the values are never read when the variables are updated later and so the redundant statements can be safely removed. Cleans up clang warnings: fs/f2fs/segment.c:923:19: warning: Value stored to 'p' during its initialization is never read fs/f2fs/segment.c:2060:2: warning: Value stored to 'hint' is never read fs/f2fs/segment.c:2353:2: warning: Value stored to 'start_block' is never read fs/f2fs/segment.c:2354:2: warning: Value stored to 'end_block' is never read Signed-off-by:
Colin Ian King <colin.king@canonical.com> Reviewed-by:
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Arnd Bergmann authored
All uses of timespec are deprecated, and this one is not particularly useful, as the documented method for converting seconds to jiffies is to multiply by 'HZ'. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Reviewed-by:
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Chao Yu authored
There may be extreme case as below: For one section contains one segment, and there are total 100 segments with 10% over-privision ratio in f2fs partition, fggc_threshold will be rounded down to 460 instead of 460.8 as below caclulation: sbi->fggc_threshold = div_u64((u64)(main_count - ovp_count) * BLKS_PER_SEC(sbi), (main_count - resv_count)); If section usage is as: 60 segments which contain 460 valid blocks 40 segments which contain 462 valid blocks As valid block number in all sections is large than fggc_threshold, so none of them will be chosen as candidate due to incorrect fggc_threshold. Let's just soften the term of choosing foreground GC candidates. Signed-off-by:
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Jaegeuk Kim authored
This reverts commit 4f31d26b. It turns out that we need to report error number if nothing was written. Reviewed-by:
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Jaegeuk Kim authored
This patch removes obosolete parameter for truncate_xattr_node. Suggested-by:
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Jaegeuk Kim authored
This gives another chance to read or write quota data. Reviewed-by:
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Jaegeuk Kim authored
If some abnormal users try lots of atomic write operations, f2fs is able to produce pinned pages in the main memory which affects system performance. This patch limits that as 20% over total memory size, and if f2fs reaches to the limit, it will drop all the inmemory pages. Signed-off-by: -
Chao Yu authored
This patch fixes to update ctx->pos correctly when hitting hole in directory. Signed-off-by:
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Chao Yu authored
Previously, for large directory, we just do readahead only once in readdir(), readdir()'s performance may drop when traversing latter blocks. In order to avoid this, relocate readahead codes to covering all traverse flow. Signed-off-by:
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Chao Yu authored
This patch follows ext4 to allow readdir() in large empty directory to be interrupted. Referenced commit of ext4: 1f60fbe7 ("ext4: allow readdir()'s of large empty directories to be interrupted"). Signed-off-by:
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Chao Yu authored
This patch adds trace for f2fs_readdir. Signed-off-by:
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Chao Yu authored
This patch adds trace for f2fs_lookup. Signed-off-by:
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Weichao Guo authored
Let's skip entire non-exist area to speed up truncate_hole by using get_next_page_offset. Signed-off-by:
Weichao Guo <guoweichao@huawei.com> Reviewed-by:
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Jaegeuk Kim authored
If there's some data written through inline data or dentry, we need to shouw st_blocks. This fixes reporting zero blocks even though there is small written data. Cc: stable@vger.kernel.org Reviewed-by:
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Jaegeuk Kim authored
When doing fault injection test, f2fs_evict_inode() didn't remove gdirty_list which incurs a kernel panic due to wrong pointer access. Reviewed-by:
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Jaegeuk Kim authored
This patch avoids dropping crypto key in f2fs_drop_inode, so we can guarantee it happens only at evict_inode. Reviewed-by:
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Chao Yu authored
last_disk_size could be wrong due to concurrently updating, so using i_sem semaphore to make last_disk_size updating exclusive to fix this issue. Signed-off-by:
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Thomas Meyer authored
Bool initializations should use true and false. Bool tests don't need comparisons. Signed-off-by:
Thomas Meyer <thomas@m3y3r.de> Signed-off-by:
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Chao Yu authored
In ->umount, once we drop remained discard entries, we should not set CP_TRIMMED_FLAG with another checkpoint. Signed-off-by:
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Chao Yu authored
This patch adds tracepoint to trace f2fs_remove_discard. Signed-off-by:
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Chao Yu authored
__submit_discard_cmd may lead long latency due to exhaustion of I/O request resource in block layer, so issuing all discard under cmd_lock may lead to hangtask, in order to avoid that, let's reduce it's coverage. Signed-off-by:
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Chao Yu authored
There are many different scenarios such as fstrim, umount, urgent or background where we will issue discards, actually, they need use different policy in aspect of io aware, discard granularity, delay interval and so on. But now they just share one common discard policy, so there will be race when changing policy in between these scenarios, the interference of changing discard policy will be very serious. This patch changes to split discard policy for different scenarios. Signed-off-by:
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Chao Yu authored
This patch wraps scattered optional parameters into discard policy as below, later, with it we expect that we can adjust these parameters with proper strategy in different scenario. struct discard_policy { unsigned int min_interval; /* used for candidates exist */ unsigned int max_interval; /* used for candidates not exist */ unsigned int max_requests; /* # of discards issued per round */ unsigned int io_aware_gran; /* minimum granularity discard not be aware of I/O */ bool io_aware; /* issue discard in idle time */ bool sync; /* submit discard with REQ_SYNC flag */ }; This patch doesn't change any logic of codes. Signed-off-by: -
Chao Yu authored
Fstrim intends to trim invalid blocks of filesystem only with specified range and granularity, but actually, it will issue all previous cached discard commands which may be out-of-range and be with unmatched granularity, it's unneeded. In order to fix above issues, this patch introduces new helps to support to issue and wait discard in range and adds a new fstrim_list for tracking in-flight discard from ->fstrim. Signed-off-by:
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- 10 Oct, 2017 2 commits
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Chao Yu authored
If f2fs manages multiple devices, in checkpoint, we need to issue flush in those devices which contain dirty data/node in their cache before we write checkpoint region, otherwise, filesystem metadata could be corrupted if hitting SPO after checkpoint. Signed-off-by:
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Chao Yu authored
When multiple device feature is enabled, during ->fsync we will issue flush in all devices to make sure node/data of the file being persisted into storage. But some flushes of device could be unneeded as file's data may be not writebacked into those devices. So this patch adds and manage bitmap per inode in global cache to indicate which device is dirty and it needs to issue flush during ->fsync, hence, we could improve performance of fsync in scenario of multiple device. Signed-off-by:
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