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fe6f0ed0da
In this round, we've tuned f2fs to improve general performance by serializing
block allocation and enhancing discard flows like fstrim which avoids user IO
contention. And we've added fsync_mode=nobarrier which gives an option to user
where it skips issuing cache_flush commands to underlying flash storage. And
there are many bug fixes related to fuzzed images, revoked atomic writes, quota
ops, and minor direct IO.
Enhancement:
- add fsync_mode=nobarrier which bypasses cache_flush command
- enhance the discarding flow which avoids user IOs and issues in LBA order
- readahead some encrypted blocks during GC
- enable in-memory inode checksum to verify the blocks if F2FS_CHECK_FS is set
- enhance nat_bits behavior
- set -o discard by default
- set REQ_RAHEAD to bio in ->readpages
Bug fixes:
- fix a corner case to corrupt atomic_writes revoking flow
- revisit i_gc_rwsem to fix race conditions
- fix some dio behaviors captured by xfstests
- correct handling errors given by quota-related failures
- add many sanity check flows to avoid fuzz test failures
- add more error number propagation to their callers
- fix several corner cases to continue fault injection w/ shutdown loop
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Merge tag 'f2fs-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"In this round, we've tuned f2fs to improve general performance by
serializing block allocation and enhancing discard flows like fstrim
which avoids user IO contention. And we've added fsync_mode=nobarrier
which gives an option to user where it skips issuing cache_flush
commands to underlying flash storage. And there are many bug fixes
related to fuzzed images, revoked atomic writes, quota ops, and minor
direct IO.
Enhancements:
- add fsync_mode=nobarrier which bypasses cache_flush command
- enhance the discarding flow which avoids user IOs and issues in
LBA order
- readahead some encrypted blocks during GC
- enable in-memory inode checksum to verify the blocks if
F2FS_CHECK_FS is set
- enhance nat_bits behavior
- set -o discard by default
- set REQ_RAHEAD to bio in ->readpages
Bug fixes:
- fix a corner case to corrupt atomic_writes revoking flow
- revisit i_gc_rwsem to fix race conditions
- fix some dio behaviors captured by xfstests
- correct handling errors given by quota-related failures
- add many sanity check flows to avoid fuzz test failures
- add more error number propagation to their callers
- fix several corner cases to continue fault injection w/ shutdown
loop"
* tag 'f2fs-for-4.19' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (89 commits)
f2fs: readahead encrypted block during GC
f2fs: avoid fi->i_gc_rwsem[WRITE] lock in f2fs_gc
f2fs: fix performance issue observed with multi-thread sequential read
f2fs: fix to skip verifying block address for non-regular inode
f2fs: rework fault injection handling to avoid a warning
f2fs: support fault_type mount option
f2fs: fix to return success when trimming meta area
f2fs: fix use-after-free of dicard command entry
f2fs: support discard submission error injection
f2fs: split discard command in prior to block layer
f2fs: wake up gc thread immediately when gc_urgent is set
f2fs: fix incorrect range->len in f2fs_trim_fs()
f2fs: refresh recent accessed nat entry in lru list
f2fs: fix avoid race between truncate and background GC
f2fs: avoid race between zero_range and background GC
f2fs: fix to do sanity check with block address in main area v2
f2fs: fix to do sanity check with inline flags
f2fs: fix to reset i_gc_failures correctly
f2fs: fix invalid memory access
f2fs: fix to avoid broken of dnode block list
...
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|---|---|---|
| .. | ||
| caching | ||
| cifs | ||
| configfs | ||
| ext4 | ||
| nfs | ||
| pohmelfs | ||
| 9p.txt | ||
| 00-INDEX | ||
| adfs.txt | ||
| affs.txt | ||
| afs.txt | ||
| autofs-mount-control.txt | ||
| autofs.txt | ||
| automount-support.txt | ||
| befs.txt | ||
| bfs.txt | ||
| btrfs.txt | ||
| ceph.txt | ||
| coda.txt | ||
| conf.py | ||
| cramfs.txt | ||
| dax.txt | ||
| debugfs.txt | ||
| devpts.txt | ||
| directory-locking | ||
| dlmfs.txt | ||
| dnotify.txt | ||
| ecryptfs.txt | ||
| efivarfs.txt | ||
| exofs.txt | ||
| ext2.txt | ||
| ext3.txt | ||
| f2fs.txt | ||
| fiemap.txt | ||
| files.txt | ||
| fscrypt.rst | ||
| fuse-io.txt | ||
| fuse.txt | ||
| gfs2-glocks.txt | ||
| gfs2-uevents.txt | ||
| gfs2.txt | ||
| hfs.txt | ||
| hfsplus.txt | ||
| hpfs.txt | ||
| index.rst | ||
| inotify.txt | ||
| isofs.txt | ||
| jfs.txt | ||
| Locking | ||
| locks.txt | ||
| mandatory-locking.txt | ||
| nilfs2.txt | ||
| ntfs.txt | ||
| ocfs2-online-filecheck.txt | ||
| ocfs2.txt | ||
| omfs.txt | ||
| orangefs.txt | ||
| overlayfs.txt | ||
| path-lookup.md | ||
| path-lookup.txt | ||
| porting | ||
| proc.txt | ||
| qnx6.txt | ||
| quota.txt | ||
| ramfs-rootfs-initramfs.txt | ||
| relay.txt | ||
| romfs.txt | ||
| seq_file.txt | ||
| sharedsubtree.txt | ||
| spufs.txt | ||
| squashfs.txt | ||
| sysfs-pci.txt | ||
| sysfs-tagging.txt | ||
| sysfs.txt | ||
| sysv-fs.txt | ||
| tmpfs.txt | ||
| ubifs.txt | ||
| udf.txt | ||
| ufs.txt | ||
| vfat.txt | ||
| vfs.txt | ||
| xfs-delayed-logging-design.txt | ||
| xfs-self-describing-metadata.txt | ||
| xfs.txt | ||