Theodore Ts'o b90197b655 ext4: use private version of page_zero_new_buffers() for data=journal mode ...

If there is a error while copying data from userspace into the page
cache during a write(2) system call, in data=journal mode, in
ext4_journalled_write_end() were using page_zero_new_buffers() from
fs/buffer.c.  Unfortunately, this sets the buffer dirty flag, which is
no good if journalling is enabled.  This is a long-standing bug that
goes back for years and years in ext3, but a combination of (a)
data=journal not being very common, (b) in many case it only results
in a warning message. and (c) only very rarely causes the kernel hang,
means that we only really noticed this as a problem when commit
998ef75ddb caused this failure to happen frequently enough to cause
generic/208 to fail when run in data=journal mode.

The fix is to have our own version of this function that doesn't call
mark_dirty_buffer(), since we will end up calling
ext4_handle_dirty_metadata() on the buffer head(s) in questions very
shortly afterwards in ext4_journalled_write_end().

Thanks to Dave Hansen and Linus Torvalds for helping to identify the
root cause of the problem.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.com>

2015-10-15 10:29:05 -04:00

..

9p

9p: fix return code of read() when count is 0

2015-08-23 14:21:36 -05:00

adfs

fs/adfs: remove unneeded cast

2015-06-30 19:44:57 -07:00

affs

fs/affs: make root lookup from blkdev logical size

2015-09-10 13:29:01 -07:00

afs

net: Add a struct net parameter to sock_create_kern

2015-05-11 10:50:17 -04:00

autofs4

make simple_positive() public

2015-06-23 18:02:01 -04:00

befs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-07-04 19:36:06 -07:00

bfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-04-26 17:22:07 -07:00

btrfs

Merge branch 'for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

2015-09-11 12:38:25 -07:00

cachefiles

Merge branch 'fscache-fixes' into for-next

2015-06-23 18:01:30 -04:00

ceph

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

2015-09-11 12:33:03 -07:00

cifs

[CIFS] mount option sec=none not displayed properly in /proc/mounts

2015-09-11 19:37:06 -05:00

coda

fs/coda: fix readlink buffer overflow

2015-09-10 13:29:01 -07:00

configfs

configfs: fix kernel infoleak through user-controlled format string

2015-07-17 16:39:53 -07:00

cramfs

fs/cramfs/inode.c: use linux/uaccess.h

2014-08-08 15:57:25 -07:00

debugfs

debugfs: Export bool read/write functions

2015-07-20 18:44:50 +01:00

devpts

devpts: if initialization failed, don't crash when opening /dev/ptmx

2015-06-30 19:44:58 -07:00

dlm

Merge tag 'dlm-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

2015-09-03 12:57:48 -07:00

ecryptfs

Merge tag 'ecryptfs-4.3-rc1-stale-dcache' of git://git.kernel.org/pub/scm/linux/kernel/git/tyhicks/ecryptfs

2015-09-08 11:26:17 -07:00

efivarfs

Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2015-05-06 10:57:37 -07:00

efs

fs/efs: femove unneeded cast

2015-06-25 17:00:42 -07:00

exofs

pagemap.h: move dir_pages() over there

2015-06-23 18:02:00 -04:00

exportfs

VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)

2015-02-22 11:38:41 -05:00

ext2

ext2: huge page fault support

2015-09-08 15:35:28 -07:00

ext4

ext4: use private version of page_zero_new_buffers() for data=journal mode

2015-10-15 10:29:05 -04:00

f2fs

Merge tag 'for-f2fs-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

2015-09-03 13:10:22 -07:00

fat

writeback: separate out include/linux/backing-dev-defs.h

2015-06-02 08:33:34 -06:00

freevxfs

freevxfs: Grammar s/an negative/a negative/

2015-08-07 13:59:24 +02:00

fscache

FS-Cache: Retain the netfs context in the retrieval op earlier

2015-04-02 14:28:53 +01:00

fuse

fs/fuse: fix ioctl type confusion

2015-08-16 12:35:44 -07:00

gfs2

Merge tag 'gfs2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

2015-09-11 12:23:51 -07:00

hfs

hfs: fix B-tree corruption after insertion at position 0

2015-09-10 13:29:01 -07:00

hfsplus

hfs,hfsplus: cache pages correctly between bnode_create and bnode_free

2015-09-10 13:29:01 -07:00

hostfs

fs: create and use seq_show_option for escaping

2015-09-04 16:54:41 -07:00

hpfs

hpfs: update ctime and mtime on directory modification

2015-09-03 11:55:30 -07:00

hugetlbfs

hugetlbfs: add hugetlbfs_fallocate()

2015-09-08 15:35:28 -07:00

isofs

VFS: normal filesystems (and lustre): d_inode() annotations

2015-04-15 15:06:57 -04:00

jbd2

jbd2: limit number of reserved credits

2015-08-04 11:21:52 -04:00

jffs2

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-07-04 19:36:06 -07:00

jfs

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

2015-09-03 12:28:30 -07:00

kernfs

kernfs: implement kernfs_path_len()

2015-08-18 15:49:15 -07:00

lockd

lockd: NLM grace period shouldn't block NFSv4 opens

2015-08-13 10:22:06 -04:00

logfs

block: remove bio_get_nr_vecs()

2015-08-13 12:32:04 -06:00

minix

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-07-04 19:36:06 -07:00

ncpfs

ncpfs: successful rename() should invalidate caches for parents

2015-06-14 11:31:39 -04:00

nfs

Merge tag 'nfs-for-4.3-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

2015-09-07 14:02:24 -07:00

nfs_common

lockd: NLM grace period shouldn't block NFSv4 opens

2015-08-13 10:22:06 -04:00

nfsd

Merge tag 'nfs-for-4.3-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

2015-09-07 14:02:24 -07:00

nilfs2

block: remove bio_get_nr_vecs()

2015-08-13 12:32:04 -06:00

nls

…

notify

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-09-05 20:34:28 -07:00

ntfs

ntfs: delete unnecessary checks before calling iput()

2015-09-04 16:54:41 -07:00

ocfs2

revert "ocfs2/dlm: use list_for_each_entry instead of list_for_each"

2015-09-11 15:21:34 -07:00

omfs

omfs: fix potential integer overflow in allocator

2015-05-28 18:25:19 -07:00

openpromfs

…

overlayfs

fs: create and use seq_show_option for escaping

2015-09-04 16:54:41 -07:00

proc

proc: convert to kstrto*()/kstrto*_from_user()

2015-09-10 13:29:01 -07:00

pstore

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2015-07-03 15:20:57 -07:00

qnx4

…

qnx6

pagemap.h: move dir_pages() over there

2015-06-23 18:02:00 -04:00

quota

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-09-05 20:34:28 -07:00

ramfs

VFS: normal filesystems (and lustre): d_inode() annotations

2015-04-15 15:06:57 -04:00

reiserfs

fs: create and use seq_show_option for escaping

2015-09-04 16:54:41 -07:00

romfs

make new_sync_{read,write}() static

2015-04-11 22:29:40 -04:00

squashfs

fs: cleanup slight list_entry abuse

2015-06-23 18:01:59 -04:00

sysfs

vfs: Commit to never having exectuables on proc and sysfs.

2015-07-10 10:39:25 -05:00

sysv

pagemap.h: move dir_pages() over there

2015-06-23 18:02:00 -04:00

tracefs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-07-04 19:36:06 -07:00

ubifs

Merge tag 'upstream-4.2-rc1' of git://git.infradead.org/linux-ubifs

2015-06-25 14:11:34 -07:00

udf

udf: Don't modify filesystem for read-only mounts

2015-08-20 14:58:35 +02:00

ufs

fix ufs write vs readpage race when writing into a hole

2015-09-09 10:43:12 -07:00

xfs

xfs: huge page fault support

2015-09-08 15:35:28 -07:00

aio.c

mm: move ->mremap() from file_operations to vm_operations_struct

2015-09-04 16:54:41 -07:00

anon_inodes.c

…

attr.c

fs,userns: Change inode_capable to capable_wrt_inode_uidgid

2014-06-10 13:57:22 -07:00

bad_inode.c

don't bother with most of the bad_file_ops methods

2015-02-20 04:03:58 -05:00

binfmt_aout.c

assorted conversions to %p[dD]

2014-11-19 13:01:20 -05:00

binfmt_elf_fdpic.c

handle suicide on late failure exits in execve() in search_binary_handler()

2014-10-09 02:39:00 -04:00

binfmt_elf.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-07-04 19:36:06 -07:00

binfmt_em86.c

syscalls: implement execveat() system call

2014-12-13 12:42:51 -08:00

binfmt_flat.c

fs/binfmt_flat.c: make old_reloc() static

2014-06-04 16:54:21 -07:00

binfmt_misc.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2015-04-26 17:22:07 -07:00

binfmt_script.c

syscalls: implement execveat() system call

2014-12-13 12:42:51 -08:00

block_dev.c

blockdev: don't set S_DAX for misaligned partitions

2015-09-15 20:08:05 -04:00

buffer.c

fs: use helper bio_add_page() instead of open coding on bi_io_vec

2015-08-13 12:32:00 -06:00

char_dev.c

fs/char_dev.c: fix incorrect documentation for unregister_chrdev_region

2015-08-05 13:49:35 -07:00

compat_binfmt_elf.c

…

compat_ioctl.c

ioctl_compat: handle FITRIM

2015-07-09 11:42:21 -07:00

compat.c

vfs: make first argument of dir_context.actor typed

2014-10-31 17:48:54 -04:00

coredump.c

fs: Don't dump core if the corefile would become world-readable.

2015-09-10 13:29:01 -07:00

dax.c

dax: fix O_DIRECT I/O to the last block of a blockdev

2015-09-15 20:07:35 -04:00

dcache.c

dcache: Reduce the scope of i_lock in d_splice_alias

2015-08-21 02:34:37 -04:00

dcookies.c

…

direct-io.c

block: remove bio_get_nr_vecs()

2015-08-13 12:32:04 -06:00

drop_caches.c

inode: convert inode_sb_list_lock to per-sb

2015-08-17 18:39:46 -04:00

eventfd.c

eventfd: don't take the spinlock in eventfd_poll

2015-02-17 14:34:52 -08:00

eventpoll.c

epoll: optimize setting task running after blocking

2015-02-13 21:21:40 -08:00

exec.c

vfs: Commit to never having exectuables on proc and sysfs.

2015-07-10 10:39:25 -05:00

fcntl.c

vfs: renumber FMODE_NONOTIFY and add to uniqueness check

2015-01-08 15:10:52 -08:00

fhandle.c

vfs: read file_handle only once in handle_to_path

2015-06-02 10:29:07 -07:00

file_table.c

fs, file table: reinit files_stat.max_files after deferred memory initialisation

2015-08-07 04:39:40 +03:00

file.c

fs/file.c: __fget() and dup2() atomicity rules

2015-07-01 02:31:08 -04:00

filesystems.c

…

fs_pin.c

fs_pin: Allow for the possibility that m_list or s_list go unused.

2015-04-09 11:39:55 -05:00

fs_struct.c

…

fs-writeback.c

fs-writeback: unplug before cond_resched in writeback_sb_inodes

2015-09-19 18:50:19 -07:00

inode.c

inode: don't softlockup when evicting inodes

2015-08-18 10:20:09 -07:00

internal.h

inode: rename i_wb_list to i_io_list

2015-08-17 23:38:10 -04:00

ioctl.c

fsioctl.c: make generic_block_fiemap() signal-tolerant

2015-02-10 14:30:30 -08:00

Kconfig

fs: Remove ext3 filesystem driver

2015-07-23 20:59:40 +02:00

Kconfig.binfmt

mm: split ET_DYN ASLR from mmap ASLR

2015-04-14 16:49:05 -07:00

libfs.c

fs: Set the size of empty dirs to 0.

2015-08-12 15:28:45 -05:00

locks.c

fs: fix fs/locks.c kernel-doc warning

2015-08-31 16:27:25 -04:00

Makefile

userfaultfd: buildsystem activation

2015-09-04 16:54:41 -07:00

mbcache.c

fs/mbcache: replace __builtin_log2() with ilog2()

2014-06-25 22:08:29 -04:00

mount.h

fs: use seq_open_private() for proc_mounts

2015-06-30 19:44:56 -07:00

mpage.c

block: remove bio_get_nr_vecs()

2015-08-13 12:32:04 -06:00

namei.c

namei: fix warning while make xmldocs caused by namei.c

2015-09-10 13:29:01 -07:00

namespace.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2015-09-01 16:13:25 -07:00

no-block.c

…

nsfs.c

fs/seq_file: convert int seq_vprint/seq_printf/etc... returns to void

2015-09-11 15:21:34 -07:00

open.c

vfs: Commit to never having exectuables on proc and sysfs.

2015-07-10 10:39:25 -05:00

pipe.c

VFS: assorted weird filesystems: d_inode() annotations

2015-04-15 15:06:58 -04:00

pnode.c

mnt: Don't propagate unmounts to locked mounts

2015-04-02 20:34:20 -05:00

pnode.h

mnt: Clarify and correct the disconnect logic in umount_tree

2015-07-22 20:33:27 -05:00

posix_acl.c

fs/posix_acl.c: make posix_acl_create() safer and cleaner

2015-06-23 18:01:07 -04:00

proc_namespace.c

fs: use seq_open_private() for proc_mounts

2015-06-30 19:44:56 -07:00

read_write.c

new_sync_write(): discard ->ki_pos unless the return value is positive

2015-04-11 22:29:46 -04:00

readdir.c

vfs: make first argument of dir_context.actor typed

2014-10-31 17:48:54 -04:00

select.c

locking/arch: Rename set_mb() to smp_store_mb()

2015-05-19 08:32:00 +02:00

seq_file.c

fs/seq_file: convert int seq_vprint/seq_printf/etc... returns to void

2015-09-11 15:21:34 -07:00

signalfd.c

signalfd: fix information leak in signalfd_copyinfo

2015-08-07 04:39:40 +03:00

splice.c

Merge branch 'akpm' (patches from Andrew)

2015-06-24 20:47:21 -07:00

stack.c

fs: fix comment for 'CONFIG_LBADF'

2014-08-26 09:35:56 +02:00

stat.c

VFS: assorted d_backing_inode() annotations

2015-04-15 15:06:59 -04:00

statfs.c

…

super.c

Merge branch 'superblock-scaling' of git://git.kernel.org/pub/scm/linux/kernel/git/josef/btrfs-next into for-next

2015-08-21 02:31:20 -04:00

sync.c

vfs: add support for a lazytime mount option

2015-02-05 02:45:00 -05:00

timerfd.c

fs: Convert show_fdinfo functions to void

2014-11-05 14:13:23 -05:00

userfaultfd.c

userfaultfd: add missing mmput() in error path

2015-09-17 21:16:07 -07:00

utimes.c

…

xattr.c

evm: fix potential race when removing xattrs

2015-05-21 13:28:47 -04:00