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3e24ad2ff9
linux/fs
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jvrao 3e24ad2ff9 9p: Add a Direct IO support for non-cached operations. 
The presence of v9fs_direct_IO() in the address space ops vector
allowes open() O_DIRECT flags which would have failed otherwise.

In the non-cached mode, we shunt off direct read and write requests before
the VFS gets them, so this method should never be called.

Direct IO is not 'yet' supported in the cached mode. Hence when
this routine is called through generic_file_aio_read(), the read/write fails
with an error.

Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
2010-10-28 09:08:45 -05:00
..
9p 9p: Add a Direct IO support for non-cached operations. 2010-10-28 09:08:45 -05:00
adfs Merge branch 'vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:01 -07:00
affs new helper: ihold() 2010-10-25 21:26:11 -04:00
afs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2010-10-26 17:58:44 -07:00
autofs Merge branch 'vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:01 -07:00
autofs4 fs: do not assign default i_ino in new_inode 2010-10-25 21:26:11 -04:00
befs fix typos concerning "initiali[zs]e" 2010-06-16 18:05:05 +02:00
bfs new helper: ihold() 2010-10-25 21:26:11 -04:00
btrfs new helper: ihold() 2010-10-25 21:26:11 -04:00
cachefiles llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
ceph writeback: remove nonblocking/encountered_congestion references 2010-10-26 16:52:05 -07:00
cifs writeback: remove nonblocking/encountered_congestion references 2010-10-26 16:52:05 -07:00
coda new helper: ihold() 2010-10-25 21:26:11 -04:00
configfs fs: do not assign default i_ino in new_inode 2010-10-25 21:26:11 -04:00
cramfs cramfs: only unlock new inodes 2010-08-18 01:01:33 -04:00
debugfs fs: do not assign default i_ino in new_inode 2010-10-25 21:26:11 -04:00
devpts
dlm Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/dlm 2010-10-22 17:33:16 -07:00
ecryptfs Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-10-24 13:41:39 -07:00
efs
exofs new helper: ihold() 2010-10-25 21:26:11 -04:00
exportfs exportfs: use dget_parent 2010-10-25 21:26:13 -04:00
ext2 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 2010-10-27 20:13:18 -07:00
ext3 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 2010-10-27 20:13:18 -07:00
ext4 Merge branch 'next' into upstream-merge 2010-10-27 23:44:47 -04:00
fat Merge branch 'for-2.6.37/barrier' of git://git.kernel.dk/linux-2.6-block 2010-10-22 17:07:18 -07:00
freevxfs fs: do not assign default i_ino in new_inode 2010-10-25 21:26:11 -04:00
fscache Add a dummy printk function for the maintenance of unused printks 2010-08-12 09:51:35 -07:00
fuse fuse: use release_pages() 2010-10-27 18:03:17 -07:00
gfs2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2010-10-26 17:58:44 -07:00
hfs switch hfs to hlist_add_fake() 2010-10-25 21:24:16 -04:00
hfsplus new helper: ihold() 2010-10-25 21:26:11 -04:00
hostfs hostfs: code cleanups 2010-10-26 16:52:12 -07:00
hpfs Merge branch 'vfs' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:01 -07:00
hppfs llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
hugetlbfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2010-10-26 17:58:44 -07:00
isofs isofs: work-around for Rock Ridge+Joliet CDs with empty ISO root directory 2010-10-27 18:03:08 -07:00
jbd Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 2010-10-27 20:13:18 -07:00
jbd2 Merge branch 'upstream-merge' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 2010-10-27 21:54:31 -07:00
jffs2 new helper: ihold() 2010-10-25 21:26:11 -04:00
jfs new helper: ihold() 2010-10-25 21:26:11 -04:00
lockd lockd: fix nlmsvc_notify_blocked locking 2010-10-27 21:39:50 +02:00
logfs new helper: ihold() 2010-10-25 21:26:11 -04:00
minix new helper: ihold() 2010-10-25 21:26:11 -04:00
ncpfs ncpfs: Lock socket in ncpfs while setting its callbacks 2010-10-05 11:02:14 +02:00
nfs Merge branch 'flock' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-27 18:13:34 -07:00
nfs_common
nfsd Merge branch 'flock' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-27 18:13:34 -07:00
nilfs2 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2010-10-26 17:58:44 -07:00
nls
notify split invalidate_inodes() 2010-10-25 21:27:18 -04:00
ntfs new helper: ihold() 2010-10-25 21:26:11 -04:00
ocfs2 fs: do not assign default i_ino in new_inode 2010-10-25 21:26:11 -04:00
omfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bcopeland/omfs 2010-08-10 11:47:36 -07:00
openpromfs
partitions Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2010-10-25 07:45:10 -07:00
proc /proc/stat: fix scalability of irq sum of all cpu 2010-10-27 18:03:13 -07:00
qnx4 BKL: remove BKL from qnx4 2010-10-21 18:48:04 +02:00
quota quota: Fix possible oops in __dquot_initialize() 2010-10-28 01:30:06 +02:00
ramfs fs: do not assign default i_ino in new_inode 2010-10-25 21:26:11 -04:00
reiserfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2010-10-26 17:58:44 -07:00
romfs llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
smbfs smbfs: use dget_parent 2010-10-25 21:26:14 -04:00
squashfs Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
sysfs Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6 2010-10-22 19:36:42 -07:00
sysv new helper: ihold() 2010-10-25 21:26:11 -04:00
ubifs new helper: ihold() 2010-10-25 21:26:11 -04:00
udf new helper: ihold() 2010-10-25 21:26:11 -04:00
ufs new helper: ihold() 2010-10-25 21:26:11 -04:00
xfs Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6 2010-10-27 20:13:18 -07:00
aio.c new helper: ihold() 2010-10-25 21:26:11 -04:00
anon_inodes.c fs: do not assign default i_ino in new_inode 2010-10-25 21:26:11 -04:00
attr.c check ATTR_SIZE contraints in inode_change_ok 2010-08-09 16:47:39 -04:00
bad_inode.c bkl: Remove locked .ioctl file operation 2010-08-14 00:24:24 +02:00
binfmt_aout.c Don't dump task struct in a.out core-dumps 2010-10-14 10:57:40 -07:00
binfmt_elf_fdpic.c
binfmt_elf.c ARM: 6342/1: fix ASLR of PIE executables 2010-10-08 10:02:53 +01:00
binfmt_em86.c
binfmt_flat.c flat: tweak default stack alignment 2010-06-29 15:29:31 -07:00
binfmt_misc.c fs: do not assign default i_ino in new_inode 2010-10-25 21:26:11 -04:00
binfmt_script.c Make do_execve() take a const filename pointer 2010-08-17 18:07:43 -07:00
binfmt_som.c
bio-integrity.c fs/bio-integrity.c: return -ENOMEM on kmalloc failure 2010-08-23 13:36:59 +02:00
bio.c block: unify flags for struct bio and struct request 2010-08-07 18:20:39 +02:00
block_dev.c fs: inode split IO and LRU lists 2010-10-25 21:26:15 -04:00
buffer.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2010-10-26 17:58:44 -07:00
char_dev.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
compat_binfmt_elf.c
compat_ioctl.c fix rawctl compat ioctls breakage on amd64 and itanic 2010-10-19 11:29:54 +02:00
compat.c Merge branch 'for-2.6.37' of git://linux-nfs.org/~bfields/linux 2010-10-26 09:55:25 -07:00
dcache.c fs: use RCU read side protection in d_validate 2010-10-25 21:26:13 -04:00
dcookies.c
direct-io.c fs/direct-io.c: fix truncation error in dio_complete() return 2010-10-26 16:52:13 -07:00
drop_caches.c simplify checks for I_CLEAR/I_FREEING 2010-08-09 16:47:44 -04:00
eventfd.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
eventpoll.c epoll: make epoll_wait() use the hrtimer range feature 2010-10-27 18:03:18 -07:00
exec.c exec: don't turn PF_KTHREAD off when a target command was not found 2010-10-27 18:03:13 -07:00
fcntl.c fasync: Fix placement of FASYNC flag comment 2010-10-27 18:17:02 -07:00
fifo.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
file_table.c fs: allow for more than 2^31 files 2010-10-26 16:52:15 -07:00
file.c vfs: use kmalloc() to allocate fdmem if possible 2010-08-11 08:59:02 -07:00
filesystems.c
fs_struct.c fs: fs_struct rwlock to spinlock 2010-08-18 08:35:46 -04:00
fs-writeback.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2010-10-26 17:58:44 -07:00
generic_acl.c vfs: update ctime when changing the file's permission by setfacl 2010-08-18 01:04:22 -04:00
inode.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2010-10-26 17:58:44 -07:00
internal.h split invalidate_inodes() 2010-10-25 21:27:18 -04:00
ioctl.c fs: Add FITRIM ioctl 2010-10-27 21:30:11 -04:00
ioprio.c
Kconfig Merge branch 'flock' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-27 18:13:34 -07:00
Kconfig.binfmt coredump: default CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y 2010-10-27 18:03:12 -07:00
libfs.c new helper: ihold() 2010-10-25 21:26:11 -04:00
locks.c Merge branch 'flock' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-27 18:13:34 -07:00
Makefile nfsd: allow deprecated interface to be compiled out. 2010-09-22 15:33:14 -04:00
mbcache.c mbcache: Limit the maximum number of cache entries 2010-08-18 06:24:41 -04:00
mpage.c
namei.c new helper: ihold() 2010-10-25 21:26:11 -04:00
namespace.c vfs: fix infinite loop caused by clone_mnt race 2010-10-25 21:24:16 -04:00
nfsctl.c
no-block.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
open.c fs: cleanup files_lock locking 2010-08-18 08:35:47 -04:00
pipe.c fs: do not assign default i_ino in new_inode 2010-10-25 21:26:11 -04:00
pnode.c fs: brlock vfsmount_lock 2010-08-18 08:35:48 -04:00
pnode.h
posix_acl.c
read_write.c vfs: introduce FMODE_UNSIGNED_OFFSET for allowing negative f_pos 2010-10-25 21:18:21 -04:00
read_write.h
readdir.c vfs: fix warning: 'dirent' is used uninitialized in this function 2010-08-09 20:45:05 -07:00
select.c epoll: make epoll_wait() use the hrtimer range feature 2010-10-27 18:03:18 -07:00
seq_file.c fs: take dcache_lock inside __d_path 2010-10-25 21:26:12 -04:00
signalfd.c Merge branch 'hwpoison' of git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-mce-2.6 2010-10-26 10:13:10 -07:00
splice.c splice: fix misuse of SPLICE_F_NONBLOCK 2010-08-07 18:52:56 +02:00
stack.c
stat.c Mark arguments to certain syscalls as being const 2010-08-13 16:53:13 -07:00
statfs.c add f_flags to struct statfs(64) 2010-08-09 16:48:44 -04:00
super.c split invalidate_inodes() 2010-10-25 21:27:18 -04:00
sync.c get rid of file_fsync() 2010-08-09 16:47:43 -04:00
timerfd.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
utimes.c Mark arguments to certain syscalls as being const 2010-08-13 16:53:13 -07:00
xattr_acl.c
xattr.c