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2016-10-01f2fs: add customized migrate_page callbackWeichao Guo
This patch improves the migration of dirty pages and allows migrating atomic written pages that F2FS uses in Page Cache. Instead of the fallback releasing page path, it provides better performance for memory compaction, CMA and other users of memory page migrating. For dirty pages, there is no need to write back first when migrating. For an atomic written page before committing, we can migrate the page and update the related 'inmem_pages' list at the same time. Signed-off-by: Weichao Guo <guoweichao@huawei.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> [Jaegeuk Kim: fix some coding style] Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-10-01f2fs: introduce cp_lock to protect updating of ckpt_flagsChao Yu
This patch introduces spinlock to protect updating process of ckpt_flags field in struct f2fs_checkpoint, it avoids incorrectly updating in race condition. Signed-off-by: Chao Yu <yuchao0@huawei.com> [Jaegeuk Kim: add __is_set_ckpt_flags likewise __set_ckpt_flags] Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-30f2fs: fix to avoid race condition when updating sbi flagChao Yu
Making updating of sbi flag atomic by using {test,set,clear}_bit, otherwise in concurrency scenario, the flag could be updated incorrectly. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-30f2fs: put directory inodes before checkpoint in roll-forward recoveryJaegeuk Kim
Before checkpoint, we'd be better drop any inodes. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-30f2fs: use crc and cp version to determine roll-forward recoveryJaegeuk Kim
Previously, we used cp_version only to detect recoverable dnodes. In order to avoid same garbage cp_version, we needed to truncate the next dnode during checkpoint, resulting in additional discard or data write. If we can distinguish this by using crc in addition to cp_version, we can remove this overhead. There is backward compatibility concern where it changes node_footer layout. So, this patch introduces a new checkpoint flag, CP_CRC_RECOVERY_FLAG, to detect new layout. New layout will be activated only when this flag is set. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-22f2fs: preallocate blocks for encrypted fileYunlei He
This patch allow preallocates data blocks for buffered aio writes in encrypted file. Signed-off-by: Yunlei He <heyunlei@huawei.com> Reviewed-by: Chao Yu <yuchao0@huawei.com> [Jaegeuk Kim: fix to avoid BUG_ON] Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-22f2fs: show dirty inode numberChao Yu
This patch enables showing dirty inode number in procfs. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-22f2fs: support IO error injectionChao Yu
This patch adds to support IO error injection for testing IO error tolerance of f2fs. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-22f2fs: fix to return error number of read_all_xattrs correctlyChao Yu
We treat all error in read_all_xattrs as a no memory error, which covers the real reason of failure in it. Fix it by return correct errno in order to reflect the real cause. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-22f2fs: make f2fs_filetype_table staticChao Yu
There is no more user of f2fs_filetype_table outside of dir.c, make it static. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-15f2fs: handle error in recover_orphan_inodeJaegeuk Kim
This patch enhances the error path in recover_orphan_inode. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-14f2fs: remove dead code f2fs_check_aclTiezhu Yang
The macro f2fs_check_acl is defined but never used since the initial commit, this patch removes the code that has been dead for several years. Signed-off-by: Tiezhu Yang <kernelpatch@126.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-14f2fs: exclude special cases for f2fs_move_file_rangeFan Li
When src and dst is the same file, and the latter part of source region overlaps with the former part of destination region, current implement will overwrite data which hasn't been moved yet and truncate data in overlapped region. This patch return -EINVAL when such cases occur and return 0 when source region and destination region is actually the same part of the same file. Signed-off-by: Fan li <fanofcode.li@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-13f2fs: fix to set PageUptodate in f2fs_write_end correctlyJaegeuk Kim
Previously, f2fs_write_begin sets PageUptodate all the time. But, when user tries to update the entire page (i.e., len == PAGE_SIZE), we need to consider that the page is able to be copied partially afterwards. In such the case, we will lose the remaing region in the page. This patch fixes this by setting PageUptodate in f2fs_write_end as given copied result. In the short copy case, it returns zero to let generic_perform_write retry copying user data again. As a result, f2fs_write_end() works: PageUptodate len copied return retry 1. no 4096 4096 4096 false -> return 4096 2. no 4096 1024 0 true -> goto #1 case 3. yes 2048 2048 2048 false -> return 2048 4. yes 2048 1024 1024 false -> return 1024 Suggested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-13f2fs: fix parameters of __exchange_data_blockFan Li
__exchange_data_block should take block indexes as parameters instead of offsets in bytes. Signed-off-by: Fan li <fanofcode.li@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-13f2fs: avoid ENOMEM during roll-forward recoveryJaegeuk Kim
This patch gives another chances during roll-forward recovery regarding to -ENOMEM. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-12f2fs: add common iget in add_fsync_inodeJaegeuk Kim
There is no functional change. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-12f2fs: check free_sections for defragmentationJaegeuk Kim
Fix wrong condition check for defragmentation of a file. Reviewed-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-12f2fs: forbid to do fstrim if fs has some errorYunlei He
This patch skip fstrim if sbi set SBI_NEED_FSCK flag Signed-off-by: Yunlei He <heyunlei@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-12f2fs: avoid page allocation for truncating partial inline_dataJaegeuk Kim
When truncating cached inline_data, we don't need to allocate a new page all the time. Instead, it must check its page cache only. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-08f2fs: no need to make zeros beyond i_sizeJaegeuk Kim
We don't need to make zeros beyond i_size, since we already wrote that through NEW_ADDR case. Reported-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-08f2fs: fix to detect temporary name of multimedia fileChao Yu
Some applications may create multimeida file with temporary name like '*.jpg.tmp' or '*.mp4.tmp', then rename to '*.jpg' or '*.mp4'. Now, f2fs can only detect multimedia filename with specified format: "filename + '.' + extension", so it will make f2fs missing to detect multimedia file with special temporary name, result in failing to set cold flag on file. This patch enhances detection flow for enabling lookup extension in the middle of temporary filename. Reported-by: Xue Liu <liuxueliu.liu@huawei.com> Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-08f2fs: fix minor typoChao Yu
Correct typo from 'destory' to 'destroy'. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-08f2fs: set dentry bits on random location in memoryJaegeuk Kim
This fixes pointer panic when using inline_dentry, which was triggered when backporting to 3.10. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-08f2fs: fix to set superblock dirty correctlyChao Yu
tests/generic/251 of fstest suit complains us with below message: ------------[ cut here ]------------ invalid opcode: 0000 [#1] PREEMPT SMP CPU: 2 PID: 7698 Comm: fstrim Tainted: G O 4.7.0+ #21 task: e9f4e000 task.stack: e7262000 EIP: 0060:[<f89fcefe>] EFLAGS: 00010202 CPU: 2 EIP is at write_checkpoint+0xfde/0x1020 [f2fs] EAX: f33eb300 EBX: eecac310 ECX: 00000001 EDX: ffff0001 ESI: eecac000 EDI: eecac5f0 EBP: e7263dec ESP: e7263d18 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 CR0: 80050033 CR2: b76ab01c CR3: 2eb89de0 CR4: 000406f0 Stack: 00000001 a220fb7b e9f4e000 00000002 419ff2d3 b3a05151 00000002 e9f4e5d8 e9f4e000 419ff2d3 b3a05151 eecac310 c10b8154 b3a05151 419ff2d3 c10b78bd e9f4e000 e9f4e000 e9f4e5d8 00000001 e9f4e000 ec409000 eecac2cc eecac288 Call Trace: [<c10b8154>] ? __lock_acquire+0x3c4/0x760 [<c10b78bd>] ? mark_held_locks+0x5d/0x80 [<f8a10632>] f2fs_trim_fs+0x1c2/0x2e0 [f2fs] [<f89e9f56>] f2fs_ioctl+0x6b6/0x10b0 [f2fs] [<c13d51df>] ? __this_cpu_preempt_check+0xf/0x20 [<c10b4281>] ? trace_hardirqs_off_caller+0x91/0x120 [<f89e98a0>] ? __exchange_data_block+0xd30/0xd30 [f2fs] [<c120b2e1>] do_vfs_ioctl+0x81/0x7f0 [<c11d57c5>] ? kmem_cache_free+0x245/0x2e0 [<c1217840>] ? get_unused_fd_flags+0x40/0x40 [<c1206eec>] ? putname+0x4c/0x50 [<c11f631e>] ? do_sys_open+0x16e/0x1d0 [<c1001990>] ? do_fast_syscall_32+0x30/0x1c0 [<c13d51df>] ? __this_cpu_preempt_check+0xf/0x20 [<c120baa8>] SyS_ioctl+0x58/0x80 [<c1001a01>] do_fast_syscall_32+0xa1/0x1c0 [<c178cc54>] sysenter_past_esp+0x45/0x74 EIP: [<f89fcefe>] write_checkpoint+0xfde/0x1020 [f2fs] SS:ESP 0068:e7263d18 ---[ end trace 4de95d7e6b3aa7c6 ]--- The reason is: with below call stack, we will encounter BUG_ON during doing fstrim. Thread A Thread B - write_checkpoint - do_checkpoint - f2fs_write_inode - update_inode_page - update_inode - set_page_dirty - f2fs_set_node_page_dirty - inc_page_count - percpu_counter_inc - set_sbi_flag(SBI_IS_DIRTY) - clear_sbi_flag(SBI_IS_DIRTY) Thread C Thread D - f2fs_write_node_page - set_node_addr - __set_nat_cache_dirty - nm_i->dirty_nat_cnt++ - do_vfs_ioctl - f2fs_ioctl - f2fs_trim_fs - write_checkpoint - f2fs_bug_on(nm_i->dirty_nat_cnt) Fix it by setting superblock dirty correctly in do_checkpoint and f2fs_write_node_page. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-08f2fs: add roll-forward recovery process for encrypted dentryShuoran Liu
Add roll-forward recovery process for encrypted dentry, so the first fsync issued to an encrypted file does not need writing checkpoint. This improves the performance of the following test at thousands of small files: open -> write -> fsync -> close Signed-off-by: Shuoran Liu <liushuoran@huawei.com> Acked-by: Chao Yu <yuchao0@huawei.com> [Jaegeuk Kim: modify kernel message to show encrypted names] Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-08f2fs: fix lost xattrs of directoriesJaegeuk Kim
This patch enhances the xattr consistency of dirs from suddern power-cuts. Possible scenario would be: 1. dir->setxattr used by per-file encryption 2. file->setxattr goes into inline_xattr 3. file->fsync In that case, we should do checkpoint for #1. Otherwise we'd lose dir's key information for the file given #2. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-08f2fs: support async discardChao Yu
Like most filesystems, f2fs will issue discard command synchronously, so when user trigger fstrim through ioctl, multiple discard commands will be issued serially with sync mode, which makes poor performance. In this patch we try to support async discard, so that all discard commands can be issued and be waited for endio in batch to improve performance. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-08f2fs: set encryption name flag in add inline entry pathShuoran Liu
This patch sets encryption name flag in the add inline entry path if filename is encrypted. Signed-off-by: Shuoran Liu <liushuoran@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-08f2fs crypto: avoid unneeded memory allocation in ->readdirChao Yu
When decrypting dirents in ->readdir, fscrypt_fname_disk_to_usr won't change content of original encrypted dirent, we don't need to allocate additional buffer for storing mirror of it, so get rid of it. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-08f2fs: fix to do security initialization of encrypted inode with original ↵Chao Yu
filename When creating new inode, security_inode_init_security will be called for initializing security info related to the inode, and filename is passed to security module, it helps security module such as SElinux to know which rule or label could be applied for the inode with specified name. Previously, if new inode is created as an encrypted one, f2fs will transfer encrypted filename to security module which may fail the check of security policy belong to the inode. So in order to this issue, alter to transfer original unencrypted filename instead. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-08f2fs: do in batch synchronously readahead during GCChao Yu
In order to enhance performance, we try to readahead node page during GC, but before loading node page we should get block address of node page which is stored in NAT table, so synchronously read of single NAT page block our readahead flow. f2fs_submit_page_bio: dev = (251,0), ino = 2, page_index = 0xa1e, oldaddr = 0xa1e, newaddr = 0xa1e, rw = READ_SYNC(MP), type = META f2fs_submit_page_bio: dev = (251,0), ino = 1, page_index = 0x35e9, oldaddr = 0x72d7a, newaddr = 0x72d7a, rw = READAHEAD ^H, type = NODE f2fs_submit_page_bio: dev = (251,0), ino = 2, page_index = 0xc1f, oldaddr = 0xc1f, newaddr = 0xc1f, rw = READ_SYNC(MP), type = META f2fs_submit_page_bio: dev = (251,0), ino = 1, page_index = 0x389d, oldaddr = 0x72d7d, newaddr = 0x72d7d, rw = READAHEAD ^H, type = NODE f2fs_submit_page_bio: dev = (251,0), ino = 1, page_index = 0x3a82, oldaddr = 0x72d7f, newaddr = 0x72d7f, rw = READAHEAD ^H, type = NODE f2fs_submit_page_bio: dev = (251,0), ino = 1, page_index = 0x3bfa, oldaddr = 0x72d86, newaddr = 0x72d86, rw = READAHEAD ^H, type = NODE This patch adds one phase that do readahead NAT pages in batch before readahead node page for more effeciently. f2fs_submit_page_bio: dev = (251,0), ino = 2, page_index = 0x1952, oldaddr = 0x1952, newaddr = 0x1952, rw = READ_SYNC(MP), type = META f2fs_submit_page_mbio: dev = (251,0), ino = 2, page_index = 0xc34, oldaddr = 0xc34, newaddr = 0xc34, rw = READ_SYNC(MP), type = META f2fs_submit_page_mbio: dev = (251,0), ino = 2, page_index = 0xa33, oldaddr = 0xa33, newaddr = 0xa33, rw = READ_SYNC(MP), type = META f2fs_submit_page_mbio: dev = (251,0), ino = 2, page_index = 0xc30, oldaddr = 0xc30, newaddr = 0xc30, rw = READ_SYNC(MP), type = META f2fs_submit_page_mbio: dev = (251,0), ino = 2, page_index = 0xc32, oldaddr = 0xc32, newaddr = 0xc32, rw = READ_SYNC(MP), type = META f2fs_submit_page_mbio: dev = (251,0), ino = 2, page_index = 0xc26, oldaddr = 0xc26, newaddr = 0xc26, rw = READ_SYNC(MP), type = META f2fs_submit_page_mbio: dev = (251,0), ino = 2, page_index = 0xa2b, oldaddr = 0xa2b, newaddr = 0xa2b, rw = READ_SYNC(MP), type = META f2fs_submit_page_mbio: dev = (251,0), ino = 2, page_index = 0xc23, oldaddr = 0xc23, newaddr = 0xc23, rw = READ_SYNC(MP), type = META f2fs_submit_page_mbio: dev = (251,0), ino = 2, page_index = 0xc24, oldaddr = 0xc24, newaddr = 0xc24, rw = READ_SYNC(MP), type = META f2fs_submit_page_mbio: dev = (251,0), ino = 2, page_index = 0xa10, oldaddr = 0xa10, newaddr = 0xa10, rw = READ_SYNC(MP), type = META f2fs_submit_page_mbio: dev = (251,0), ino = 2, page_index = 0xc2c, oldaddr = 0xc2c, newaddr = 0xc2c, rw = READ_SYNC(MP), type = META f2fs_submit_page_bio: dev = (251,0), ino = 1, page_index = 0x5db7, oldaddr = 0x6be00, newaddr = 0x6be00, rw = READAHEAD ^H, type = NODE f2fs_submit_page_bio: dev = (251,0), ino = 1, page_index = 0x5db9, oldaddr = 0x6be17, newaddr = 0x6be17, rw = READAHEAD ^H, type = NODE f2fs_submit_page_bio: dev = (251,0), ino = 1, page_index = 0x5dbc, oldaddr = 0x6be1a, newaddr = 0x6be1a, rw = READAHEAD ^H, type = NODE f2fs_submit_page_bio: dev = (251,0), ino = 1, page_index = 0x5dc3, oldaddr = 0x6be20, newaddr = 0x6be20, rw = READAHEAD ^H, type = NODE f2fs_submit_page_bio: dev = (251,0), ino = 1, page_index = 0x5dc7, oldaddr = 0x6be24, newaddr = 0x6be24, rw = READAHEAD ^H, type = NODE f2fs_submit_page_bio: dev = (251,0), ino = 1, page_index = 0x5dc9, oldaddr = 0x6be25, newaddr = 0x6be25, rw = READAHEAD ^H, type = NODE Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-09-08f2fs: schedule in between two continous batch discardsChao Yu
In batch discard approach of fstrim will grab/release gc_mutex lock repeatly, it makes contention of the lock becoming more intensive. So after one batch discards were issued in checkpoint and the lock was released, it's better to do schedule() to increase opportunity of grabbing gc_mutex lock for other competitors. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-30f2fs: enable inline_dentry by default and add noinline_dentry optionChao Yu
Make inline_dentry as default mount option to improve space usage and IO performance in scenario of numerous small directory. It adds noinline_dentry mount option, instead. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-30f2fs: fix a bug when using namehash to locate dentry bucketShuoran Liu
In the following scenario, 1) we don't have the key and doing a lookup for encrypted file, 2) and the encrypted filename is big name we should use fname->hash as name hash value instead of what is calculated by fname->disk_name. Because in such case, fname->disk_name is empty. Signed-off-by: Shuoran Liu <liushuoran@huawei.com> Acked-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-30f2fs: fix to preallocate block only aligned to 4KChao Yu
In write_begin(), we skip checking dnode block for preallocating block when whole block needs to be updated since we preallocated its block in f2fs_preallocate_blocks, for partial updated block, we will still try to lock its node and do preallocation in write_begin(), so in f2fs_preallocate_blocks we should not preallocate its block. But previously, the calculation of preallocating block number is incorrect, fix it. Signed-off-by: Chao Yu <yuchao0@huawei.com> [Jaegeuk Kim: fix a bug] Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-30f2fs: fix non static symbol warningWei Yongjun
Fixes the following sparse warning: fs/f2fs/data.c:969:12: warning: symbol 'f2fs_grab_bio' was not declared. Should it be static? Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-30f2fs: remove unnecessary initializationSheng Yong
`flags' is used to save value from userspace, there is no need to initialize it, and FS_FL_USER_VISIBLE is the mask for getflags. Signed-off-by: Sheng Yong <shengyong1@huawei.com> Acked-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-30f2fs: remove redundant judgement condition in available_free_memoryChao Yu
In available_free_memory, there are two same judgement conditions which is used for checking NAT excess, remove one of them. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-30f2fs: check return value of write_checkpoint during fstrimChao Yu
During fstrim, if one of multiple write_checkpoint failed, break off and return error number to caller. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-30f2fs: fix to do f2fs_balance_fs in f2fs_map_blocks correctlyChao Yu
If we preallocate blocks with f2fs_reserve_blocks in f2fs_map_blocks, we should call f2fs_balance_fs for checking and reclaiming space, fix it. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-30f2fs: avoid unneeded loop in build_sit_entriesChao Yu
When building each sit entry in cache, firstly, we will load it from sit page, and then check all entries in sit journal, if there is one updated entry in journal, cover cached entry with the journaled one. Actually, most of check operation is unneeded since we only need to update cached entries with journaled entries in batch, so changing the flow as below for more efficient: 1. load all sit entries into cache from sit pages; 2. update sit entries with journal. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-30f2fs: clean up foreground GC flowChao Yu
This patch changes to check valid block number of one GCed section directly instead of checking the number in all segments of section one by one in order to clean up codes of foreground GC. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-30f2fs: set dirty state for filesystem only when updating meta dataChao Yu
We don't guarantee integrity of user data after checkpoint, since we only guarantee meta data integrity for data consistency of filesystem. Due to above reason, we only need to set fs as dirty when meta data is updated, so that we can skip writing checkpoint in some case of non-meta data is updated. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-30f2fs: skip new checkpoint when doing fstrim without fs changeYunlei He
This patch enables to do fstrim without checkpoint, if there is no fs change. Signed-off-by: Yunlei He <heyunlei@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-30f2fs: add discard info to sys entry of f2fs statusYunlei He
This patch add discard block count to sys entry of f2fs status Signed-off-by: Yunlei He <heyunlei@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-30f2fs: reduce batch size of fstrimJaegeuk Kim
This is to reduce the batch size of fstrim to avoid long latency. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-24f2fs: do not use discard_map for hard disksJaegeuk Kim
We don't need to keep discard_map, if disk does not support discard command. Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-24f2fs: not allow to write illegal blkaddrYunlei He
we came across an error as below: [build_nat_area_bitmap:1710] nid[0x 1718] addr[0x 1c18ddc] ino[0x 1718] [build_nat_area_bitmap:1710] nid[0x 1719] addr[0x 1c193d5] ino[0x 1719] [build_nat_area_bitmap:1710] nid[0x 171a] addr[0x 1c1736e] ino[0x 171a] [build_nat_area_bitmap:1710] nid[0x 171b] addr[0x 58b3ee8f] ino[0x815f92ed] [build_nat_area_bitmap:1710] nid[0x 171c] addr[0x fcdc94b] ino[0x49366377] [build_nat_area_bitmap:1710] nid[0x 171d] addr[0x 7cd2facf] ino[0xb3c55300] [build_nat_area_bitmap:1710] nid[0x 171e] addr[0x bd4e25d0] ino[0x77c34c09] ... ... [build_nat_area_bitmap:1710] nid[0x 1718] addr[0x 1c18ddc] ino[0x 1718] [build_nat_area_bitmap:1710] nid[0x 1719] addr[0x 1c193d5] ino[0x 1719] [build_nat_area_bitmap:1710] nid[0x 171a] addr[0x 1c1736e] ino[0x 171a] [build_nat_area_bitmap:1710] nid[0x 171b] addr[0x 58b3ee8f] ino[0x815f92ed] [build_nat_area_bitmap:1710] nid[0x 171c] addr[0x fcdc94b] ino[0x49366377] [build_nat_area_bitmap:1710] nid[0x 171d] addr[0x 7cd2facf] ino[0xb3c55300] [build_nat_area_bitmap:1710] nid[0x 171e] addr[0x bd4e25d0] ino[0x77c34c09] One nat block may be stepped by a data block, so this patch forbid to write if the blkaddr is illegal Signed-off-by: Yunlei He <heyunlei@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
2016-08-24Merge tag 'for-f2fs-v4.8-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs Pull f2fs fixes from Jaegeuk Kim: - fsmark regression - i_size race condition - wrong conditions in f2fs_move_file_range * tag 'for-f2fs-v4.8-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: f2fs: avoid potential deadlock in f2fs_move_file_range f2fs: allow copying file range only in between regular files Revert "f2fs: move i_size_write in f2fs_write_end" Revert "f2fs: use percpu_rw_semaphore"
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