Al Viro f440ea85d4 do d_instantiate/unlock_new_inode combinations safely ... commit 1e2e547a93 upstream. For anything NFS-exported we do _not_ want to unlock new inode before it has grown an alias; original set of fixes got the ordering right, but missed the nasty complication in case of lockdep being enabled - unlock_new_inode() does lockdep_annotate_inode_mutex_key(inode) which can only be done before anyone gets a chance to touch ->i_mutex. Unfortunately, flipping the order and doing unlock_new_inode() before d_instantiate() opens a window when mkdir can race with open-by-fhandle on a guessed fhandle, leading to multiple aliases for a directory inode and all the breakage that follows from that. Correct solution: a new primitive (d_instantiate_new()) combining these two in the right order - lockdep annotate, then d_instantiate(), then the rest of unlock_new_inode(). All combinations of d_instantiate() with unlock_new_inode() should be converted to that. Cc: stable@kernel.org # 2.6.29 and later Tested-by: Mike Marshall <hubcap@omnibond.com> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-05-30 07:51:47 +02:00
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Kconfig	…
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
alloc.c	…
alloc.h	…
bmap.c	…
bmap.h	…
btnode.c	…
btnode.h	…
btree.c	…
btree.h	…
cpfile.c	…
cpfile.h	…
dat.c	…
dat.h	…
dir.c	…
direct.c	…
direct.h	…
export.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
file.c	…
gcinode.c	…
ifile.c	…
ifile.h	…
inode.c	VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)	2017-07-17 08:45:34 +01:00
ioctl.c	…
mdt.c	VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)	2017-07-17 08:45:34 +01:00
mdt.h	…
namei.c	do d_instantiate/unlock_new_inode combinations safely	2018-05-30 07:51:47 +02:00
nilfs.h	…
page.c	mm: remove nr_pages argument from pagevec_lookup{,_range}()	2017-09-06 17:27:27 -07:00
page.h	…
recovery.c	…
segbuf.c	block: replace bi_bdev with a gendisk pointer and partitions index	2017-08-23 12:49:55 -06:00
segbuf.h	…
segment.c	nilfs2: fix race condition that causes file system corruption	2017-11-30 08:40:44 +00:00
segment.h	…
sufile.c	…
sufile.h	…
super.c	VFS: Convert sb->s_flags & MS_RDONLY to sb_rdonly(sb)	2017-07-17 08:45:34 +01:00
sysfs.c	…
sysfs.h	…
the_nilfs.c	…
the_nilfs.h	…