- 25 Nov, 2016 1 commit
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Jaegeuk Kim authored
Now we don't need to be too much careful about storage alignment for dio, since its speed becomes quite fast and we'd better avoid any misalignment first. Revert: 38aa0889 (f2fs: align direct_io'ed data to section) Reviewed-by:
Chao Yu <yuchao0@huawei.com> Signed-off-by:
Jaegeuk Kim <jaegeuk@kernel.org>
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- 23 Nov, 2016 39 commits
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Yunlei He authored
If one block has been to written to a new place, just return in move data process. This patch check it again with holding page lock. Signed-off-by:
Yunlei He <heyunlei@huawei.com> Signed-off-by:
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Chao Yu authored
i_times of inode will be set with current system time which can be configured through 'date', so it's not safe to judge dnode block as garbage data or unchanged inode depend on i_times. Now, we have used enhanced 'cp_ver + cp' crc method to verify valid dnode block, so I expect recoverying invalid dnode is almost not possible. This reverts commit 807b1e1c. Signed-off-by:
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Jaegeuk Kim authored
The generic freeze_super() calls sync_filesystems() before f2fs_freeze(). So, basically we don't need to do checkpoint in f2fs_freeze(). But, in xfs/068, it triggers circular locking problem below due to gc_mutex for checkpoint. ====================================================== [ INFO: possible circular locking dependency detected ] 4.9.0-rc1+ #132 Tainted: G OE ------------------------------------------------------- 1. wait for __sb_start_write() by [<ffffffff9845f353>] dump_stack+0x85/0xc2 [<ffffffff980e80bf>] print_circular_bug+0x1cf/0x230 [<ffffffff980eb4d0>] __lock_acquire+0x19e0/0x1bc0 [<ffffffff980ebdcb>] lock_acquire+0x11b/0x220 [<ffffffffc08c7c3b>] ? f2fs_drop_inode+0x9b/0x160 [f2fs] [<ffffffff9826bdd0>] __sb_start_write+0x130/0x200 [<ffffffffc08c7c3b>] ? f2fs_drop_inode+0x9b/0x160 [f2fs] [<ffffffffc08c7c3b>] f2fs_drop_inode+0x9b/0x160 [f2fs] [<ffffffff98289991>] iput+0x171/0x2c0 [<ffffffffc08cfccf>] f2fs_sync_inode_meta+0x3f/0xf0 [f2fs] [<ffffffffc08cfe04>] block_operations+0x84/0x110 [f2fs] [<ffffffffc08cff78>] write_checkpoint+0xe8/0xf20 [f2fs] [<ffffffff980e979d>] ? trace_hardirqs_on+0xd/0x10 [<ffffffffc08c6de9>] ? f2fs_sync_fs+0x79/0x190 [f2fs] [<ffffffff9803e9d9>] ? sched_clock+0x9/0x10 [<ffffffffc08c6de9>] ? f2fs_sync_fs+0x79/0x190 [f2fs] [<ffffffffc08c6df5>] f2fs_sync_fs+0x85/0x190 [f2fs] [<ffffffff982a4f90>] ? do_fsync+0x70/0x70 [<ffffffff982a4f90>] ? do_fsync+0x70/0x70 [<ffffffff982a4fb0>] sync_fs_one_sb+0x20/0x30 [<ffffffff9826ca3e>] iterate_supers+0xae/0x100 [<ffffffff982a50b5>] sys_sync+0x55/0x90 [<ffffffff9890b345>] entry_SYSCALL_64_fastpath+0x23/0xc6 2. wait for sbi->gc_mutex by [<ffffffff980ebdcb>] lock_acquire+0x11b/0x220 [<ffffffff989063d6>] mutex_lock_nested+0x76/0x3f0 [<ffffffffc08c6de9>] f2fs_sync_fs+0x79/0x190 [f2fs] [<ffffffffc08c7a6c>] f2fs_freeze+0x1c/0x20 [f2fs] [<ffffffff9826b6ef>] freeze_super+0xcf/0x190 [<ffffffff9827eebc>] do_vfs_ioctl+0x53c/0x6a0 [<ffffffff9827f099>] SyS_ioctl+0x79/0x90 [<ffffffff9890b345>] entry_SYSCALL_64_fastpath+0x23/0xc6 Signed-off-by: -
Jaegeuk Kim authored
Previously, we assigned CURSEG_WARM_DATA for direct_io, but if we have two or four logs, we do not use that type at all. Let's fix it. Signed-off-by: -
Chao Yu authored
Shouldn't update in-memory i_atime with on-disk i_mtime of inode when recovering inode. Shuoran found this bug which is hidden for a long time, honour is belong to him. Signed-off-by:
Shuoran Liu <liushuoran@huawei.com> Signed-off-by:
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Chao Yu authored
We should record updating status of inode only for living inode, for those unlinked inode it needs to clear its ino cache, otherwise after the ino was been reused, it will cause unneeded node page writing during ->fsync. Signed-off-by:
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Damien Le Moal authored
Similarly to the regular discard, trace zone reset events. Signed-off-by:
Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by:
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Damien Le Moal authored
When a zoned block device is mounted, discarding sections contained in sequential zones must reset the zone write pointer. For sections contained in conventional zones, the regular discard is used if the drive supports it. Signed-off-by:
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Damien Le Moal authored
With the zoned block device feature enabled, section discard need to do a zone reset for sections contained in sequential zones, and a regular discard (if supported) for sections stored in conventional zones. Avoid the need for a costly report zones to obtain a section zone type when discarding it by caching the types of the device zones in the super block information. This cache is initialized at mount time for mounts with the zoned block device feature enabled. Signed-off-by:
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Damien Le Moal authored
The LFS mode is mandatory for host-managed zoned block devices as update in place optimizations are not possible for segments in sequential zones. Signed-off-by:
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Damien Le Moal authored
Zone write pointer reset acts as discard for zoned block devices. So if the zoned block device feature is enabled, always declare that discard is enabled, even if the device does not actually support the command. For the same reason, prevent the use the "nodicard" mount option. Signed-off-by:
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Damien Le Moal authored
For zoned block devices, discard is replaced by zone reset. So do not warn if the device does not supports discard. Signed-off-by:
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Damien Le Moal authored
The F2FS_FEATURE_BLKZONED feature indicates that the drive was formatted with zone alignment optimization. This is optional for host-aware devices, but mandatory for host-managed zoned block devices. So check that the feature is set in this latter case. Signed-off-by:
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Damien Le Moal authored
SMR stands for "Shingled Magnetic Recording" which makes sense only for hard disk drives (spinning rust). The ZBC/ZAC standards enable management of SMR disks, but solid state drives may also support those standards. So rename the HMSMR feature to BLKZONED to avoid a HDD centric terminology. For the same reason, rename f2fs_sb_mounted_hmsmr to f2fs_sb_mounted_blkzoned. Signed-off-by:
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Damien Le Moal authored
Signed-off-by:
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Jaegeuk Kim authored
This patch should fix an infinite loop case below. F2FS-fs : inject IO error in f2fs_read_end_io+0xf3/0x120 [f2fs] F2FS-fs (nvme0n1p1): recover_orphan_inode: orphan failed (ino=39ac1a), run fsck to fix. ... [<ffffffffc0b11ede>] sync_meta_pages+0xae/0x270 [f2fs] [<ffffffffc0b288dd>] ? flush_sit_entries+0x8d/0x960 [f2fs] [<ffffffffc0b13801>] write_checkpoint+0x361/0xf20 [f2fs] [<ffffffffb40e979d>] ? trace_hardirqs_on+0xd/0x10 [<ffffffffc0b0a199>] ? f2fs_sync_fs+0x79/0x190 [f2fs] [<ffffffffc0b0a1a5>] f2fs_sync_fs+0x85/0x190 [f2fs] [<ffffffffc0b2560e>] f2fs_balance_fs_bg+0x7e/0x1c0 [f2fs] [<ffffffffc0b216c4>] f2fs_write_node_pages+0x34/0x320 [f2fs] [<ffffffffb41dff21>] do_writepages+0x21/0x30 [<ffffffffb429edb1>] __writeback_single_inode+0x61/0x760 [<ffffffffb490a937>] ? _raw_spin_unlock+0x27/0x40 [<ffffffffb42a0805>] writeback_single_inode+0xd5/0x190 [<ffffffffb42a0959>] write_inode_now+0x99/0xc0 [<ffffffffb4289a16>] iput+0x1f6/0x2c0 [<ffffffffc0b0e3be>] f2fs_fill_super+0xe0e/0x1300 [f2fs] [<ffffffffb426c394>] ? sget_userns+0x4f4/0x530 [<ffffffffb426c692>] mount_bdev+0x182/0x1b0 [<ffffffffc0b0d5b0>] ? f2fs_commit_super+0x100/0x100 [f2fs] [<ffffffffc0b0a375>] f2fs_mount+0x15/0x20 [f2fs] [<ffffffffb426d038>] mount_fs+0x38/0x170 [<ffffffffb428ec9b>] vfs_kern_mount+0x6b/0x160 [<ffffffffb4291d9e>] do_mount+0x1be/0xd60 [<ffffffffb4291a57>] ? copy_mount_options+0xb7/0x220 [<ffffffffb4292c54>] SyS_mount+0x94/0xd0 [<ffffffffb490b345>] entry_SYSCALL_64_fastpath+0x23/0xc6 Signed-off-by: -
Chao Yu authored
Report error of f2fs_fill_dentries to ->iterate_shared, otherwise when error ocurrs, user may just list part of dirents in target directory without any hints. Signed-off-by:
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Arnd Bergmann authored
gcc is unsure about the use of last_ofs_in_node, which might happen without a prior initialization: fs/f2fs//git/arm-soc/fs/f2fs/data.c: In function ‘f2fs_map_blocks’: fs/f2fs/data.c:799:54: warning: ‘last_ofs_in_node’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (prealloc && dn.ofs_in_node != last_ofs_in_node + 1) { As pointed out by Chao Yu, the code is actually correct as 'prealloc' is only set if the last_ofs_in_node has been set, the two always get updated together. This initializes last_ofs_in_node to dn.ofs_in_node for each new dnode at the start of the 'next_block' loop, which at that point is a correct initialization as well. I assume that compilers that correctly track the contents of the variables and do not warn about the condition also figure out that they can eliminate the extra assignment here. Fixes: 46008c6d ("f2fs: support in batch multi blocks preallocation") Signed-off-by:Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Jaegeuk Kim authored
This patch removes percpu_count usage due to performance regression in iozone. Fixes: 523be8a6 ("f2fs: use percpu_counter for page counters") Signed-off-by:
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Jaegeuk Kim authored
This patch tries to make more clean inodes when flushing dirty inodes in checkpoint. Signed-off-by: -
Jaegeuk Kim authored
This is to avoid no free segment bug during checkpoint caused by a number of dirty inodes. The case was reported by Chao like this. 1. mount with lazytime option 2. fill 4k file until disk is full 3. sync filesystem 4. read all files in the image 5. umount In this case, we actually don't need to flush dirty inode to inode page during checkpoint. Reviewed-by:
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Jaegeuk Kim authored
We don't need to allocate bio partially in order to maximize sequential writes. Signed-off-by: -
Jaegeuk Kim authored
This patch avoids build warning. Signed-off-by: -
Jaegeuk Kim authored
If inode becomes dirty, we need to check the # of dirty inodes whether or not further checkpoint would be required. Reviewed-by:
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Jaegeuk Kim authored
If there are a lot of dirty inodes, we need to flush all of them when doing checkpoint. So, we need to count this for enough free space. Reviewed-by:
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Chao Yu authored
This patch makes sure it returns a positive value instead of a probable casted negative value as shrink count. Signed-off-by:
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Chao Yu authored
Let build_free_nids support sync/async methods, in allocation flow of nids, we use synchronuous method, so that we can avoid looping in alloc_nid when free memory is low; in unblock_operations and f2fs_balance_fs_bg we use asynchronuous method in where low memory condition can interrupt us. Signed-off-by:
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Jaegeuk Kim authored
This patch cleans up to use consistent free nid list ops. Reviewed-by:
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Chao Yu authored
During free nid allocation, in order to do preallocation, we will tag free nid entry as allocated one and still leave it in free nid list, for other allocators who want to grab free nids, it needs to traverse the free nid list for lookup. It becomes overhead in scenario of allocating free nid intensively by multithreads. This patch splits free nid list to two list: {free,alloc}_nid_list, to keep free nids and preallocated free nids separately, after that, traverse latency will be gone, besides split nid_cnt for separate statistic. Additionally, introduce __insert_nid_to_list and __remove_nid_from_list for cleanup. Signed-off-by: -
Chao Yu authored
We don't need to keep incomplete created inode in cache, so if we fail to add link into directory during new inode creation, it's better to set nlink of inode to zero, then we can evict inode immediately. Otherwise release of nid belong to inode will be delayed until inode cache is being shrunk, it may cause a seemingly endless loop while allocating free nids in time of testing generic/269 case of fstest suit. Signed-off-by:
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Eric Biggers authored
f2fs contained a number of endianness conversion bugs. Also, one function should have been 'static'. Found with sparse by running 'make C=2 CF=-D__CHECK_ENDIAN__ fs/f2fs/' Signed-off-by:
Eric Biggers <ebiggers@google.com> Signed-off-by:
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Chao Yu authored
In fsync_node_pages, if f2fs was taged with CP_ERROR_FLAG, make sure bio cache was flushed before return. Signed-off-by:
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Chao Yu authored
In order to avoid racing problem, make largest extent cache being updated under lock. Signed-off-by:
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Chao Yu authored
f2fs can support fallocating blocks beyond file size without changing the size, but ->fiemap of f2fs was restricted and can't detect these extents fallocated past EOF, now relieve the restriction. Signed-off-by:
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Chao Yu authored
In f2fs_map_blocks, let f2fs_balance_fs detects node page modification with dn.node_changed to avoid miss some corner cases. Signed-off-by:
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Chao Yu authored
f2fs_balance_fs should be called in between node page updating, otherwise node page count will exceeded far beyond watermark of triggering foreground garbage collection, result in facing high risk of hitting LFS allocation failure. Signed-off-by:
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Chao Yu authored
If there is no dirty pages in inode, we should give a chance to detach the inode from global dirty list, otherwise it needs to call another unnecessary .writepages for detaching. Signed-off-by:
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Chao Yu authored
In f2fs_fill_super, if there is any IO error occurs during recovery, cached discard entries will be leaked, in order to avoid this, make write_checkpoint() handle memory release by itself, besides, move clear_prefree_segments to write_checkpoint for readability. Signed-off-by:
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Chao Yu authored
During nid allocation, it needs to exclude building and allocating flow of free nids, this is because while building free nid cache, there are two steps: a) load free nids from unused nat entries in NAT pages, b) update free nid cache by checking nat journal. The two steps should be atomical, otherwise an used nid can be allocated as free one after a) and before b). This patch adds missing lock which covers build_free_nids in unlock_operation and f2fs_balance_fs_bg to avoid that. Signed-off-by:
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