- Nov 06, 2017
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Jaegeuk Kim authored
This patch replaces to use cp_error flag instead of RDONLY for quota off. Reviewed-by:
Chao Yu <yuchao0@huawei.com> Signed-off-by:
Jaegeuk Kim <jaegeuk@kernel.org>
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- Oct 26, 2017
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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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- Oct 11, 2017
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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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Chao Yu authored
It needs to stat size of ino management cache with all type instead of orphan ino type. Fixes: 652be551 ("f2fs: show # of orphan inodes") Signed-off-by:
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Chao Yu authored
If we failed to issue flush in ->fsync, we need to keep FI_UPDATE_WRITE flag to make sure triggering flush in next ->fsync. Signed-off-by:
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Chao Yu authored
As Fan Li reported, there is no user traversing nid_list[ALLOC_NID_LIST] which is used for tracking preallocated nids. Let's drop it, and only track preallocated nids in free_nid_root radix-tree. Reported-by:
Fan Li <fanofcode.li@samsung.com> Signed-off-by:
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Weichao Guo authored
In FI_NO_PREALLOC cases, direct I/O path may allocate blocks for an inode but keep its inline data flag. This inconsistency may trigger vfs clear_inode nrpages bug_on when evicting the inode. We should convert inline data first in this case. Signed-off-by:
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Hsiang Kao authored
Keep in line with the other Linux file system implementations since page_cache_sync_readahead supports NULL file pointer, and thus we can readahead data by f2fs itself without file opening (something like the btrfs behavior). Signed-off-by:
Gao Xiang <gaoxiang25@huawei.com> Reviewed-by:
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Chao Yu authored
This patch adds to show flush list status in sysfs. Signed-off-by:
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Chao Yu authored
Commit ba38c27e ("f2fs: enhance lookup xattr") introduces lookup_all_xattrs duplicating from read_all_xattrs, which leaves lots of similar codes in between them, so introduce new help read_xattr_block to clean up redundant codes. Signed-off-by:
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Chao Yu authored
Commit ba38c27e ("f2fs: enhance lookup xattr") introduces lookup_all_xattrs duplicating from read_all_xattrs, which leaves lots of similar codes in between them, so introduce new help read_inline_xattr to clean up redundant codes. Signed-off-by:
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Chao Yu authored
Commit 26834466 ("f2fs: reuse nids more aggressively") tries to reuse nids as many as possilbe, in order to mitigate producing obsolete node pages in page cache. But acutally, before we reuse the nids and related node page cache, we will always invalidate that node page, so there will be not any obsolete node pages in cache. Let's just revert previous commit, so that nm_i::next_scan_nid can be increased ascendingly, making __build_free_nids traverses all NAT pages more easily, finally, free nid bitmap cache can be enabled as soon as possible. Signed-off-by:
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Yunlong Song authored
This reverts commit b9cd2061 . That patch causes much fewer node segments (which can be used for SSR) than before, and in the corner case (e.g. create and delete *.txt files in one same directory, there will be very few node segments but many data segments), if the reserved free segments are all used up during gc, then the write_checkpoint can still flush dentry pages to data ssr segments, but will probably fail to flush node pages to node ssr segments, since there are not enough node ssr segments left (the left ones are all full). So revert this patch to give a fair chance to let node segments remain for SSR, which provides more robustness for corner cases. Conflicts: fs/f2fs/gc.c Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fsLinus Torvalds authored
Pull f2fs fix from Jaegeuk Kim: "This contains one bug fix which causes a kernel panic during fstrim introduced in 4.14-rc1" * tag 'f2fs-for-4.14-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: f2fs: fix potential panic during fstrim
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Linus Torvalds authored
Merge tag 'linux-kselftest-4.14-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: - fix for x86: sysret_ss_attrs test build failure preventing the x86 tests from running - fix mqueue: fix regression in silencing test run output * tag 'linux-kselftest-4.14-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: mqueue: fix regression in silencing output from RUN_TESTS selftests: x86: sysret_ss_attrs doesn't build on a PIE build
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- Oct 10, 2017
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Linus Torvalds authored
Merge powerpc transactional memory fixes from Michael Ellerman: "I figured I'd still send you the commits using a bundle to make sure it works in case I need to do it again in future" This fixes transactional memory state restore for powerpc. * bundle'd patches from Michael Ellerman: powerpc/tm: Fix illegal TM state in signal handler powerpc/64s: Use emergency stack for kernel TM Bad Thing program checks
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