redonkable/alistair23-linux
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alistair23-linux/fs
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Jan Kara 7fb5409df0 ext4: Fix Direct I/O locking 
We cannot start transaction in ext4_direct_IO() and just let it last
during the whole write because dio_get_page() acquires mmap_sem which
ranks above transaction start (e.g. because we have dependency chain
mmap_sem->PageLock->journal_start, or because we update atime while
holding mmap_sem) and thus deadlocks could happen. We solve the problem
by starting a transaction separately for each ext4_get_block() call.

We *could* have a problem that we allocate a block and before its data
are written out the machine crashes and thus we expose stale data. But
that does not happen because for hole-filling generic code falls back to
buffered writes and for file extension, we add inode to orphan list and
thus in case of crash, journal replay will truncate inode back to the
original size.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2008-02-10 01:08:38 -05:00
..
9p Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p) 2008-02-07 08:42:26 -08:00
adfs mount options: fix adfs 2008-02-08 09:22:39 -08:00
affs mount options: fix affs 2008-02-08 09:22:39 -08:00
afs mount options: fix afs 2008-02-08 09:22:39 -08:00
autofs mount options: fix autofs 2008-02-08 09:22:40 -08:00
autofs4 mount options: fix autofs4 2008-02-08 09:22:39 -08:00
befs mount options: fix befs 2008-02-08 09:22:40 -08:00
bfs iget: stop BFS from using iget() and read_inode() 2008-02-07 08:42:27 -08:00
cifs iget: stop CIFS from using iget() and read_inode() 2008-02-07 08:42:27 -08:00
coda
configfs
cramfs
debugfs libfs: allow error return from simple attributes 2008-02-08 09:22:34 -08:00
devpts mount options: fix devpts 2008-02-08 09:22:40 -08:00
dlm dlm: add __init and __exit marks to init and exit functions 2008-02-06 23:41:22 -06:00
ecryptfs ecryptfs: check for existing key_tfm at mount time 2008-02-06 10:41:13 -08:00
efs iget: stop EFS from using iget() and read_inode() 2008-02-07 08:42:27 -08:00
exportfs
ext2 mount options: fix ext2 2008-02-08 09:22:40 -08:00
ext3 ext3: replace all adds to little endians variables with le*_add_cpu 2008-02-08 09:22:32 -08:00
ext4 ext4: Fix Direct I/O locking 2008-02-10 01:08:38 -05:00
fat mount options: fix fat 2008-02-08 09:22:40 -08:00
freevxfs iget: stop FreeVXFS from using iget() and read_inode() 2008-02-07 08:42:28 -08:00
fuse mount options: fix fuse 2008-02-08 09:22:40 -08:00
gfs2 iget: use iget_failed() in GFS2 2008-02-07 08:42:27 -08:00
hfs hfs: update comment to reflect actual init and exit routines 2008-02-06 10:41:05 -08:00
hfsplus fs/hfsplus/unicode.c: fix uninitialized var warning 2008-02-08 09:22:36 -08:00
hostfs UML: fix hostfs build 2008-02-09 11:08:33 -08:00
hpfs mount options: fix hpfs 2008-02-08 09:22:40 -08:00
hppfs iget: stop HPPFS from using iget() and read_inode() 2008-02-07 08:42:29 -08:00
hugetlbfs mount options: fix hugetlbfs 2008-02-08 09:22:40 -08:00
isofs mount options: fix isofs 2008-02-08 09:22:40 -08:00
jbd ext3 can fail badly when device stops accepting BIO_RW_BARRIER requests 2008-02-08 09:22:44 -08:00
jbd2 JBD2: Use the incompat macro for testing the incompat feature. 2008-02-05 10:56:15 -05:00
jffs2 Merge git://git.infradead.org/mtd-2.6 2008-02-07 10:20:31 -08:00
jfs BKL-removal: Implement a compat_ioctl handler for JFS 2008-02-07 13:45:29 -06:00
lockd NLM: tear down RPC clients in nlm_shutdown_hosts 2008-02-01 16:42:15 -05:00
minix iget: stop the MINIX filesystem from using iget() and read_inode() 2008-02-07 08:42:28 -08:00
msdos
ncpfs mount options: fix ncpfs 2008-02-08 09:22:40 -08:00
nfs NFS: Fix a potential file corruption issue when writing 2008-02-07 19:20:20 -05:00
nfs_common
nfsd Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p) 2008-02-07 08:42:26 -08:00
nls
ntfs is_vmalloc_addr(): Check if an address is within the vmalloc boundaries 2008-02-05 09:44:14 -08:00
ocfs2 byteorder: move le32_add_cpu & friends from OCFS2 to core 2008-02-08 09:22:32 -08:00
openpromfs iget: stop OPENPROMFS from using iget() and read_inode() 2008-02-07 08:42:29 -08:00
partitions Enhanced partition statistics: remove old partition statistics 2008-02-08 12:42:01 +01:00
proc revert "proc: fix the threaded proc self" 2008-02-08 15:33:32 -08:00
qnx4 iget: stop QNX4 from using iget() and read_inode() 2008-02-07 08:42:28 -08:00
ramfs
reiserfs mount options: fix reiserfs 2008-02-08 09:22:40 -08:00
romfs iget: stop ROMFS from using iget() and read_inode() 2008-02-07 08:42:28 -08:00
smbfs smbfs: fix calculation of kernel_recvmsg size parameter in smb_receive() 2008-02-06 10:41:02 -08:00
sysfs sysfs: remove BUG_ON() from sysfs_remove_group() 2008-02-07 11:31:46 -08:00
sysv iget: stop the SYSV filesystem from using iget() and read_inode() 2008-02-07 08:42:29 -08:00
udf mount options: fix udf 2008-02-08 09:22:41 -08:00
ufs drop linux/ufs_fs.h from userspace export and relocate it to fs/ufs/ufs_fs.h 2008-02-08 09:22:39 -08:00
vfat Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p) 2008-02-07 08:42:26 -08:00
xfs Merge branch 'for-linus' of git://oss.sgi.com:8090/xfs/xfs-2.6 2008-02-07 19:12:12 -08:00
aio.c aio: negative offset should return -EINVAL 2008-02-08 09:22:33 -08:00
anon_inodes.c
attr.c
bad_inode.c iget: introduce a function to register iget failure 2008-02-07 08:42:26 -08:00
binfmt_aout.c aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUT 2008-02-08 09:22:30 -08:00
binfmt_elf.c Remove a.out interpreter support in ELF loader 2008-02-08 09:22:41 -08:00
binfmt_elf_fdpic.c
binfmt_em86.c
binfmt_flat.c aout: remove unnecessary inclusions of {asm, linux}/a.out.h 2008-02-08 09:22:30 -08:00
binfmt_misc.c
binfmt_script.c
binfmt_som.c aout: remove unnecessary inclusions of {asm, linux}/a.out.h 2008-02-08 09:22:30 -08:00
bio.c
block_dev.c kill an unused PTR_ERR in bdev_cache_init() 2008-02-06 10:41:06 -08:00
buffer.c buffer_head: fix private_list handling 2008-02-08 09:22:42 -08:00
char_dev.c fs/char_dev.c: chrdev_open marked static and removed from fs.h 2008-02-08 09:22:42 -08:00
compat.c fs: remove dead config CONFIG_HAS_COMPAT_EPOLL_EVENT symbol 2008-02-06 10:41:03 -08:00
compat_binfmt_elf.c x86: compat_binfmt_elf 2008-01-30 13:31:46 +01:00
compat_ioctl.c dm ioctl: move compat code 2008-02-08 02:09:56 +00:00
dcache.c inotify: remove debug code 2008-02-06 10:41:07 -08:00
dcookies.c
direct-io.c Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user 2008-02-05 09:44:13 -08:00
dnotify.c
dquot.c quota: improve inode list scanning in add_dquot_ref() 2008-02-06 10:41:07 -08:00
drop_caches.c
eventfd.c fs/eventfd.c should #include <linux/syscalls.h> 2008-02-06 10:41:03 -08:00
eventpoll.c lockdep: annotate epoll 2008-02-05 09:44:07 -08:00
exec.c Allow executables larger than 2GB 2008-02-08 09:22:34 -08:00
fcntl.c fs: remove fastcall, it is always empty 2008-02-08 09:22:31 -08:00
fifo.c
file.c get rid of NR_OPEN and introduce a sysctl_nr_open 2008-02-06 10:41:06 -08:00
file_table.c fs: remove fastcall, it is always empty 2008-02-08 09:22:31 -08:00
filesystems.c
fs-writeback.c write_inode_now(): avoid unnecessary synchronous write 2008-02-08 09:22:34 -08:00
generic_acl.c
inode.c iget: remove iget() and the read_inode() super op as being obsolete 2008-02-07 08:42:29 -08:00
inotify.c inotify: remove debug code 2008-02-06 10:41:07 -08:00
inotify_user.c inotify: fix check for one-shot watches before destroying them 2008-02-08 09:22:22 -08:00
internal.h
ioctl.c fix up kerneldoc in fs/ioctl.c a little bit 2008-02-09 11:08:33 -08:00
ioprio.c
Kconfig SUNRPC xptrdma: simplify build configuration 2008-02-07 19:58:08 -05:00
Kconfig.binfmt aout: suppress A.OUT library support if !CONFIG_ARCH_SUPPORTS_AOUT 2008-02-08 09:22:30 -08:00
libfs.c libfs: rename simple_attr_close to simple_attr_release 2008-02-08 09:22:34 -08:00
locks.c Pidns: make full use of xxx_vnr() calls 2008-02-08 09:22:29 -08:00
Makefile x86: compat_binfmt_elf Kconfig 2008-01-30 13:31:46 +01:00
mbcache.c
mpage.c Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user 2008-02-05 09:44:13 -08:00
namei.c fs: remove fastcall, it is always empty 2008-02-08 09:22:31 -08:00
namespace.c reduce large do_mount stack usage with noinlines 2008-02-08 09:22:44 -08:00
nfsctl.c
no-block.c
open.c remove the unused exports of sys_open/sys_read 2008-02-08 09:22:36 -08:00
pipe.c BKL-Removal: convert pipe to use unlocked_ioctl too 2008-02-08 09:22:38 -08:00
pnode.c MNT_UNBINDABLE fix 2008-02-06 10:41:02 -08:00
pnode.h
posix_acl.c
quota.c Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p) 2008-02-07 08:42:26 -08:00
quota_v1.c
quota_v2.c
read_write.c remove the unused exports of sys_open/sys_read 2008-02-08 09:22:36 -08:00
read_write.h
readdir.c
select.c make sys_poll() wait at least timeout ms 2008-02-06 10:41:09 -08:00
seq_file.c
signalfd.c fs/signalfd.c should #include <linux/syscalls.h> 2008-02-06 10:41:03 -08:00
splice.c splice: missing user pointer access verification 2008-02-08 09:25:01 -08:00
stack.c
stat.c
super.c quota: turn quotas off when remounting read-only 2008-02-08 09:22:44 -08:00
sync.c
timerfd.c timerfd: new timerfd API 2008-02-05 09:44:07 -08:00
utimes.c fs/utimes.c should #include <linux/syscalls.h> 2008-02-06 10:41:03 -08:00
xattr.c VFS: Reorder vfs_getxattr to avoid unnecessary calls to the LSM 2008-02-05 09:44:20 -08:00
xattr_acl.c