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Message-ID: <20150906025504.GH22011@ZenIV.linux.org.uk>
Date: Sun, 6 Sep 2015 03:55:04 +0100
From: Al Viro <viro@...IV.linux.org.uk>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: [git pull] vfs pile 1
In this one: d_move fixes (Eric), UFS fixes (me; locking is mostly sane
now, a bunch of bugs in error handling ought to be fixed), switch of sb_writers
to percpu rwsem (Oleg), superblock scalability (Josef and Dave), swapon(2) race
fix (Hugh). Please, pull from the usual place -
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git for-linus
Shortlog:
Al Viro (47):
ufs: kill more lock_ufs() calls
ufs: switch ufs_evict_inode() to trimmed-down variant of ufs_truncate()
ufs: free excessive blocks upon ->write_begin() failure/short copy
ufs: move truncate_setsize() down into ufs_truncate()
ufs: move lock_ufs() down into __ufs_truncate_blocks()
ufs: bforget() indirect blocks before freeing them
ufs: don't use lock_ufs() for block pointers tree protection
ufs: kill lock_ufs()
ufs: ufs_trunc_direct() always returns 0
ufs: ufs_trunc_...() has exclusion with everything that might cause allocations
ufs: no retries are needed on truncate
ufs: move truncate code into inode.c
ufs: the offsets ufs_block_to_path() puts into array are not sector_t
ufs: beginning of __ufs_truncate_block() massage
ufs_trunc_tindirect(): pass the number of blocks to keep
ufs_trunc_indirect(): pass the index of the first pointer to free
ufs_trunc_dindirect(): pass the number of blocks to keep
__ufs_truncate(); find cutoff distances into branches by offsets[] array
ufs_trunc_...indirect(): pass the array of indices instead of offsets
ufs_trunc_..indirect(): more massage towards unifying
unify ufs_trunc_..indirect()
__ufs_truncate_blocks(): unify freeing the full branches
__ufs_trunc_blocks(): turn the part after switch into a loop
ufs_trunc_branch(): never call with offsets != NULL && depth2 == 0
ufs_trunc_branch(): separate the calls with non-NULL offsets
ufs: unify the logics for collecting adjacent data blocks to free
split ufs_truncate_branch() into full- and partial-branch variants
ufs_trunc_branch(): massage towards killing recursion
ufs_trunc_branch(): kill recursion
free_full_branch(): saner calling conventions
move marking inode dirty to the end of __ufs_truncate_blocks()
free_full_branch(): don't bother modifying the block we are going to free
__ufs_truncate_blocks(): avoid excessive dirtying of indirect blocks
ufs_inode_get{frag,block}(): get rid of retries
ufs: move calculation of offsets into ufs_getfrag_block()
ufs: use the branch depth in ufs_getfrag_block()
ufs_inode_get{frag,block}(): consolidate success exits
ufs_getfrag_block(): get rid of macro jungles
ufs_inode_get{frag,block}(): leave sb_getblk() to caller
ufs_inode_getblock(): pass index instead of 'fragment'
ufs_inode_getblock(): pass indirect block number and full index
ufs_inode_getfrag(): split extending the partial blocks off
ufs_inode_getfrag(): pass index instead of 'fragment'
ufs_getfrag_block(): turn following indirects into a loop
ufs_inode_getblock(): failure to read an indirect block is -EIO
ufs_getfrag_block(): tidy up a bit
ufs_inode_get{frag,block}(): get rid of 'phys' argument
Dave Chinner (4):
writeback: plug writeback at a high level
inode: convert inode_sb_list_lock to per-sb
sync: serialise per-superblock sync operations
inode: rename i_wb_list to i_io_list
Eric W. Biederman (3):
dcache: Handle escaped paths in prepend_path
dcache: Reduce the scope of i_lock in d_splice_alias
vfs: Test for and handle paths that are unreachable from their mnt_root
Hugh Dickins (1):
mm: fix potential data race in SyS_swapon
Josef Bacik (2):
inode: add hlist_fake to avoid the inode hash lock in evict
inode: don't softlockup when evicting inodes
Oleg Nesterov (8):
introduce __sb_writers_{acquired,release}() helpers
fix the broken lockdep logic in __sb_start_write()
document rwsem_release() in sb_wait_write()
percpu-rwsem: introduce percpu_down_read_trylock()
percpu-rwsem: introduce percpu_rwsem_release() and percpu_rwsem_acquire()
percpu-rwsem: kill CONFIG_PERCPU_RWSEM
shift percpu_counter_destroy() into destroy_super_work()
change sb_writers to use percpu_rw_semaphore
Diffstat:
arch/Kconfig | 1 -
fs/block_dev.c | 12 +-
fs/btrfs/transaction.c | 8 +-
fs/dcache.c | 14 +-
fs/drop_caches.c | 10 +-
fs/fs-writeback.c | 72 +--
fs/inode.c | 50 ++-
fs/internal.h | 3 +-
fs/namei.c | 27 +-
fs/notify/inode_mark.c | 20 +-
fs/quota/dquot.c | 16 +-
fs/super.c | 175 ++++----
fs/ufs/Makefile | 2 +-
fs/ufs/balloc.c | 4 +
fs/ufs/inode.c | 948 ++++++++++++++++++++++++++-------------
fs/ufs/super.c | 36 +-
fs/ufs/truncate.c | 523 ---------------------
fs/ufs/ufs.h | 13 +-
fs/xfs/xfs_aops.c | 6 +-
include/linux/fs.h | 33 +-
include/linux/fsnotify_backend.h | 4 +-
include/linux/list.h | 5 +
include/linux/percpu-rwsem.h | 20 +
init/Kconfig | 1 -
kernel/locking/Makefile | 3 +-
kernel/locking/percpu-rwsem.c | 13 +
lib/Kconfig | 3 -
mm/backing-dev.c | 8 +-
mm/swapfile.c | 25 +-
29 files changed, 936 insertions(+), 1119 deletions(-)
delete mode 100644 fs/ufs/truncate.c
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