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android_kernel_samsung_msm8976/fs
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Ryusuke Konishi 344e833f18 nilfs2: fix the nilfs_iget() vs. nilfs_new_inode() races 
commit 705304a863cc41585508c0f476f6d3ec28cf7e00 upstream.

Same story as in commit 41080b5a24 ("nfsd race fixes: ext2") (similar
ext2 fix) except that nilfs2 needs to use insert_inode_locked4() instead
of insert_inode_locked() and a bug of a check for dead inodes needs to
be fixed.

If nilfs_iget() is called from nfsd after nilfs_new_inode() calls
insert_inode_locked4(), nilfs_iget() will wait for unlock_new_inode() at
the end of nilfs_mkdir()/nilfs_create()/etc to unlock the inode.

If nilfs_iget() is called before nilfs_new_inode() calls
insert_inode_locked4(), it will create an in-core inode and read its
data from the on-disk inode.  But, nilfs_iget() will find i_nlink equals
zero and fail at nilfs_read_inode_common(), which will lead it to call
iget_failed() and cleanly fail.

However, this sanity check doesn't work as expected for reused on-disk
inodes because they leave a non-zero value in i_mode field and it
hinders the test of i_nlink.  This patch also fixes the issue by
removing the test on i_mode that nilfs2 doesn't need.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2015-01-16 06:59:02 -08:00
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9p aio: don't include aio.h in sched.h 2013-05-07 20:16:25 -07:00
adfs
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affs
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afs aio: don't include aio.h in sched.h 2013-05-07 20:16:25 -07:00
autofs4 autofs - remove autofs dentry mount check 2013-05-06 13:06:59 -07:00
befs befs_readdir(): do not increment ->f_pos if filldir tells us to stop 2013-05-31 15:17:56 -04:00
bfs
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btrfs Btrfs: fix fs corruption on transaction abort if device supports discard 2015-01-08 09:58:17 -08:00
cachefiles lift sb_start_write() out of ->write() 2013-04-09 14:12:56 -04:00
ceph ceph: allow sync_read/write return partial successed size of read/write. 2014-01-09 12:24:25 -08:00
cifs CIFS: Fix SMB2 readdir error handling 2014-10-05 14:54:11 -07:00
coda lift sb_start_write() out of ->write() 2013-04-09 14:12:56 -04:00
configfs configfs: fix race between dentry put and lookup 2013-11-29 11:11:53 -08:00
cramfs
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debugfs debugfs: debugfs_remove_recursive() must not rely on list_empty(d_subdirs) 2013-08-14 22:59:10 -07:00
devpts devpts: plug the memory leak in kill_sb 2013-12-04 10:55:49 -08:00
dlm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2013-05-01 14:08:52 -07:00
ecryptfs eCryptfs: Remove buggy and unnecessary write in file name decode routine 2015-01-08 09:58:17 -08:00
efivarfs efivarfs: Never return ENOENT from firmware again 2013-05-13 20:12:10 +01:00
efs
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exofs ore: Fix wrong math in allocation of per device BIO 2014-02-13 13:48:00 -08:00
exportfs
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ext2 ext2: Fix oops in ext2_get_block() called from ext2_quota_write() 2014-12-16 09:09:43 -08:00
ext3 ext3: Don't check quota format when there are no quota files 2014-11-14 08:48:00 -08:00
ext4 ext4: fix oops when loading block bitmap failed 2014-11-14 08:47:58 -08:00
f2fs f2fs updates for v3.10 2013-05-08 15:11:48 -07:00
fat fat: fix possible overflow for fat_clusters 2013-05-24 16:22:50 -07:00
freevxfs
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fscache fs/fscache/stats.c: fix memory leak 2013-04-29 15:54:27 -07:00
fuse fuse: handle large user and group ID 2014-07-28 08:00:02 -07:00
gfs2 GFS2: Increase i_writecount during gfs2_setattr_chown 2014-01-25 08:27:11 -08:00
hfs hfs: avoid crash in hfs_bnode_create 2013-05-24 16:22:51 -07:00
hfsplus aio: don't include aio.h in sched.h 2013-05-07 20:16:25 -07:00
hostfs hostfs: use kmalloc instead of kzalloc 2013-05-04 15:48:45 -04:00
hpfs hpfs: better test for errors 2013-07-13 11:42:26 -07:00
hppfs hppfs: get rid of ->fsync() 2013-04-29 15:41:42 -04:00
hugetlbfs cope with potentially long ->d_dname() output for shmem/hugetlb 2013-10-18 07:45:45 -07:00
isofs isofs: Fix unchecked printing of ER records 2015-01-08 09:58:15 -08:00
jbd Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs 2013-05-03 09:56:25 -07:00
jbd2 jbd2: free bh when descriptor block checksum fails 2014-11-14 08:47:57 -08:00
jffs2 kill wbuf_queued/wbuf_dwork_lock 2014-11-14 08:47:55 -08:00
jfs jfs: fix error path in ialloc 2013-11-13 12:05:31 +09:00
lockd lockd: Try to reconnect if statd has moved 2014-11-14 08:47:53 -08:00
logfs
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minix
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ncpfs ncpfs: return proper error from NCP_IOC_SETROOT ioctl 2015-01-08 09:58:17 -08:00
nfs nfs41: fix nfs4_proc_layoutget error handling 2015-01-08 09:58:15 -08:00
nfs_common
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nfsd nfsd4: fix xdr4 inclusion of escaped char 2015-01-16 06:59:02 -08:00
nilfs2 nilfs2: fix the nilfs_iget() vs. nilfs_new_inode() races 2015-01-16 06:59:02 -08:00
nls
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notify fanotify: enable close-on-exec on events' fd when requested in fanotify_init() 2014-10-30 09:35:12 -07:00
ntfs aio: don't include aio.h in sched.h 2013-05-07 20:16:25 -07:00
ocfs2 ocfs2: fix journal commit deadlock 2015-01-16 06:59:00 -08:00
omfs
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openpromfs
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proc userns: Add a knob to disable setgroups on a per user namespace basis 2015-01-08 09:58:16 -08:00
pstore pstore-ram: Allow optional mapping with pgprot_noncached 2015-01-16 06:59:00 -08:00
qnx4
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qnx6 qnx6: qnx6_readdir() has a braino in pos calculation 2013-05-31 15:17:31 -04:00
quota quota: Properly return errors from dquot_writeback_dquots() 2014-11-14 08:48:00 -08:00
ramfs
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reiserfs reiserfs: call truncate_setsize under tailpack mutex 2014-07-06 18:54:15 -07:00
romfs romfs: fix nommu map length to keep inside filesystem 2013-04-29 09:17:57 +10:00
squashfs
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sysfs sysfs: check if one entry has been removed before freeing 2013-04-05 15:35:52 -07:00
sysv sysv: Add forgotten superblock lock init for v7 fs 2013-10-05 07:13:09 -07:00
ubifs UBIFS: fix free log space calculation 2014-11-14 08:47:54 -08:00
udf udf: Verify symlink size before loading it 2015-01-08 09:58:17 -08:00
ufs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-04-30 09:36:50 -07:00
xfs xfs: don't zero partial page cache pages during O_DIRECT writes 2014-09-17 09:04:01 -07:00
Kconfig efivarfs: Move to fs/efivarfs 2013-04-17 13:25:09 +01:00
Kconfig.binfmt fs: make binfmt support for #! scripts modular and removable 2013-04-30 17:04:04 -07:00
Makefile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
aio.c aio: fix kernel memory disclosure in io_getevents() introduced in v3.10 2014-06-30 20:09:45 -07:00
anon_inodes.c
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attr.c fs,userns: Change inode_capable to capable_wrt_inode_uidgid 2014-06-16 13:42:52 -07:00
bad_inode.c
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binfmt_aout.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
binfmt_elf.c fs/binfmt_elf.c: prevent a coredump with a large vm_map_count from Oopsing 2013-10-13 16:08:31 -07:00
binfmt_elf_fdpic.c Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-05-02 10:16:16 -07:00
binfmt_em86.c
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binfmt_flat.c new helper: read_code() 2013-04-29 15:40:23 -04:00
binfmt_misc.c binfmt_misc: reuse string_unescape_inplace() 2013-04-30 17:04:03 -07:00
binfmt_script.c
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binfmt_som.c
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bio-integrity.c bio-integrity: Fix bio_integrity_verify segment start bug 2014-03-23 21:38:21 -07:00
bio.c block: Fix bio_copy_data() 2013-10-05 07:13:09 -07:00
block_dev.c writeback: Fix periodic writeback after fs mount 2013-07-28 16:29:40 -07:00
buffer.c vfs: fix data corruption when blocksize < pagesize for mmaped data 2014-11-14 08:47:54 -08:00
char_dev.c
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compat.c aio: don't include aio.h in sched.h 2013-05-07 20:16:25 -07:00
compat_binfmt_elf.c
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compat_ioctl.c Removed unused typedef to avoid "unused local typedef" warnings. 2013-05-04 15:03:05 -04:00
coredump.c coredump: fix the setting of PF_DUMPCORE 2014-07-31 12:53:50 -07:00
coredump.h
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dcache.c vfs: fix bad hashing of dentries 2014-09-17 09:04:02 -07:00
dcookies.c fs/compat: fix lookup_dcookie() parameter handling 2014-02-13 13:48:00 -08:00
direct-io.c Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block 2013-05-08 10:13:35 -07:00
drop_caches.c
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eventfd.c
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eventpoll.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2013-05-01 07:21:43 -07:00
exec.c metag: Reduce maximum stack size to 256MB 2014-06-07 13:25:38 -07:00
fcntl.c
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fhandle.c
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file.c fs/file.c:fdtable: avoid triggering OOMs from alloc_fdmem 2014-02-22 12:41:25 -08:00
file_table.c don't bother with {get,put}_write_access() on non-regular files 2014-05-30 21:52:12 -07:00
filesystems.c
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fs-writeback.c writeback: fix a subtle race condition in I_DIRTY clearing 2015-01-16 06:59:02 -08:00
fs_struct.c
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generic_acl.c
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inode.c fs,userns: Change inode_capable to capable_wrt_inode_uidgid 2014-06-16 13:42:52 -07:00
internal.h splice: don't pass the address of ->f_pos to methods 2013-06-20 19:02:45 +04:00
ioctl.c
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ioprio.c block: Fix computation of merged request priority 2014-11-21 09:22:53 -08:00
libfs.c
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locks.c locks: allow __break_lease to sleep even when break_time is 0 2014-05-13 13:59:44 +02:00
mbcache.c
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mount.h vfs: Is mounted should be testing mnt_ns for NULL or error. 2014-02-06 11:08:16 -08:00
mpage.c
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namei.c vfs: fix bad hashing of dentries 2014-09-17 09:04:02 -07:00
namespace.c umount: Disallow unprivileged mount force 2015-01-08 09:58:16 -08:00
no-block.c
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open.c don't bother with {get,put}_write_access() on non-regular files 2014-05-30 21:52:12 -07:00
pipe.c vfs: fix subtle use-after-free of pipe_inode_info 2013-12-11 22:36:26 -08:00
pnode.c vfs: Fix invalid ida_remove() call 2013-05-31 15:16:33 -04:00
pnode.h Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-05-01 17:51:54 -07:00
posix_acl.c posix_acl: handle NULL ACL in posix_acl_equiv_mode 2014-06-07 13:25:33 -07:00
proc_namespace.c
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read_write.c fs/compat: fix parameter handling for compat readv/writev syscalls 2014-02-13 13:48:00 -08:00
readdir.c
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select.c
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seq_file.c seq_file: always update file->f_pos in seq_lseek() 2013-11-13 12:05:34 +09:00
signalfd.c
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splice.c fuse: fix pipe_buf_operations 2014-02-13 13:47:59 -08:00
stack.c
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stat.c
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statfs.c vfs: allow O_PATH file descriptors for fstatfs() 2013-10-18 07:45:44 -07:00
super.c fs: Fix theoretical division by 0 in super_cache_scan(). 2014-11-14 08:47:54 -08:00
sync.c
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timerfd.c
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utimes.c
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xattr.c
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xattr_acl.c
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