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facd07b07d
linux/fs
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Josef Bacik facd07b07d direct-io: add a hook for the fs to provide its own submit_bio function 
Because BTRFS can do RAID and such, we need our own submit hook so we can setup
the bio's in the correct fashion, and handle checksum errors properly.  So there
are a few changes here

1) The submit_io hook.  This is straightforward, just call this instead of
submit_bio.

2) Allow the fs to return -ENOTBLK for reads.  Usually this has only worked for
writes, since writes can fallback onto buffered IO.  But BTRFS needs the option
of falling back on buffered IO if it encounters a compressed extent, since we
need to read the entire extent in and decompress it.  So if we get -ENOTBLK back
from get_block we'll return back and fallback on buffered just like the write
case.

I've tested these changes with fsx and everything seems to work.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
2010-05-25 10:34:55 -04:00
..
9p 9p: add bdi backing to mount session 2010-04-22 11:42:00 +02:00
adfs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
affs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
afs Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2010-04-28 07:56:05 -07:00
autofs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
autofs4 autofs4-2.6.34-rc1 - fix link_count usage 2010-05-10 09:48:10 -07:00
befs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
bfs pass writeback_control to ->write_inode 2010-03-05 13:25:52 -05:00
btrfs Btrfs: Metadata ENOSPC handling for balance 2010-05-25 10:34:54 -04:00
cachefiles CacheFiles: Fix error handling in cachefiles_determine_cache_security() 2010-05-12 18:23:58 -07:00
ceph ceph: preserve seq # on requeued messages after transient transport errors 2010-05-11 21:20:38 -07:00
cifs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6 2010-05-13 10:36:16 -07:00
coda coda: add bdi backing to mount session 2010-04-22 12:12:40 +02:00
configfs Fix the regression created by "set S_DEAD on unlink()..." commit 2010-05-15 07:16:33 -04:00
cramfs
debugfs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
devpts include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
dlm include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ecryptfs ecryptfs: add bdi backing to mount session 2010-04-22 12:22:04 +02:00
efs
exofs exofs: Fix "add bdi backing to mount session" fall out 2010-04-29 20:35:29 +02:00
exportfs nfs: new subdir Documentation/filesystems/nfs 2009-10-27 19:34:04 -04:00
ext2 ext2: symlink must be handled via filesystem specific operation 2010-04-12 21:11:25 +02:00
ext3 ext3: symlink must be handled via filesystem specific operation 2010-04-12 21:11:39 +02:00
ext4 Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 2010-04-25 10:01:51 -07:00
fat Merge branch 'master' into export-slabh 2010-04-05 11:37:28 +09:00
freevxfs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
fscache fs-cache: order the debugfs stats correctly 2010-04-07 08:38:05 -07:00
fuse include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
gfs2 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
hfs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
hfsplus include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
hostfs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
hpfs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
hppfs hppfs can use existing proc_mnt, no need for do_kern_mount() in there 2010-03-03 14:08:00 -05:00
hugetlbfs Untangling ima mess, part 1: alloc_file() 2009-12-16 12:16:47 -05:00
isofs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
jbd include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
jbd2 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
jffs2 include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
jfs JFS: Free sbi memory in error path 2010-05-15 07:16:34 -04:00
lockd include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
logfs Fix double-free in logfs 2010-05-15 07:16:33 -04:00
minix include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ncpfs ncpfs: add bdi backing to mount session 2010-04-22 12:31:11 +02:00
nfs NFS: Fix RCU issues in the NFSv4 delegation code 2010-05-01 12:37:18 -04:00
nfs_common include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
nfsd nfsd4: bug in read_buf 2010-04-26 15:39:08 -04:00
nilfs2 nilfs2: fix sync silent failure 2010-05-03 07:36:01 -07:00
nls Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6 2009-09-30 09:31:14 -07:00
notify Merge branch 'for-linus' of git://git.infradead.org/users/eparis/notify 2010-05-14 11:49:42 -07:00
ntfs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
ocfs2 ocfs2: Avoid a gcc warning in ocfs2_wipe_inode(). 2010-05-03 19:15:49 -07:00
omfs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
openpromfs
partitions include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
proc revert "procfs: provide stack information for threads" and its fixup commits 2010-05-11 17:33:41 -07:00
qnx4 fs/qnx4: decrement sizeof size in strncmp 2010-02-04 11:55:46 +01:00
quota quota: Convert __DQUOT_PARANOIA symbol to standard config option 2010-04-20 18:25:25 +02:00
ramfs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
reiserfs reiserfs: fix corruption during shrinking of xattrs 2010-04-24 11:31:24 -07:00
romfs fix leak in romfs_fill_super() 2010-01-26 22:22:26 -05:00
smbfs smbfs: add bdi backing to mount session 2010-04-22 12:37:07 +02:00
squashfs squashfs: fix potential buffer over-run on 4K block file systems 2010-04-25 02:09:05 +01:00
sysfs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
sysv fs/sysv: dereferencing ERR_PTR() 2010-05-15 07:16:33 -04:00
ubifs include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
udf udf: add speciffic ->setattr callback 2010-04-08 15:35:20 +02:00
ufs ufs: make solaris fsck happy 2010-03-12 15:52:35 -08:00
xfs xfs: add a shrinker to background inode reclaim 2010-04-29 16:22:13 -05:00
aio.c aio: remove unused field 2009-12-16 07:20:13 -08:00
anon_inodes.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
attr.c fs: use rlimit helpers 2010-03-06 11:26:29 -08:00
bad_inode.c
binfmt_aout.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
binfmt_elf_fdpic.c Remove redundant check for CONFIG_MMU 2010-04-27 09:01:26 -07:00
binfmt_elf.c coredump: pass mm->flags as a coredump parameter for consistency 2010-03-06 11:26:46 -08:00
binfmt_em86.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
binfmt_flat.c uclinux: error message when FLAT reloc symbol is invalid, v2 2010-04-21 13:28:49 +10:00
binfmt_misc.c
binfmt_script.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
binfmt_som.c Split 'flush_old_exec' into two functions 2010-01-29 08:22:01 -08:00
bio-integrity.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
bio.c Merge branch 'master' into for-linus 2010-03-19 08:05:10 +01:00
block_dev.c fs/block_dev.c: fix performance regression in O_DIRECT|O_SYNC writes to block devices 2010-04-24 11:31:26 -07:00
buffer.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2010-03-12 16:04:50 -08:00
char_dev.c fs/char_dev.c: remove useless loop 2009-09-24 07:21:03 -07:00
compat_binfmt_elf.c elf coredump: replace ELF_CORE_EXTRA_* macros by functions 2010-03-06 11:26:45 -08:00
compat_ioctl.c pktcdvd: improve BKL and compat_ioctl.c usage 2010-04-29 08:44:37 -07:00
compat.c revert "procfs: provide stack information for threads" and its fixup commits 2010-05-11 17:33:41 -07:00
dcache.c fix race in d_splice_alias() 2010-03-03 14:13:08 -05:00
dcookies.c
direct-io.c direct-io: add a hook for the fs to provide its own submit_bio function 2010-05-25 10:34:55 -04:00
drop_caches.c sysctl: remove "struct file *" argument of ->proc_handler 2009-09-24 07:21:04 -07:00
eventfd.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
eventpoll.c anonfd: Allow making anon files read-only 2009-12-22 12:27:34 -05:00
exec.c revert "procfs: provide stack information for threads" and its fixup commits 2010-05-11 17:33:41 -07:00
fcntl.c fs: use rlimit helpers 2010-03-06 11:26:29 -08:00
fifo.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
file_table.c vfs: take f_lock on modifying f_mode after open time 2010-03-06 11:26:25 -08:00
file.c fs: use rlimit helpers 2010-03-06 11:26:29 -08:00
filesystems.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
fs_struct.c
fs-writeback.c Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-block 2010-04-09 11:50:29 -07:00
generic_acl.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
inode.c dquot: move dquot initialization responsibility into the filesystem 2010-03-05 00:20:30 +01:00
internal.h Take vfsmount_lock to fs/internal.h 2010-03-03 14:07:59 -05:00
ioctl.c Cleanup generic block based fiemap 2010-04-23 10:39:48 -07:00
ioprio.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
Kconfig Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2010-03-19 09:43:06 -07:00
Kconfig.binfmt
libfs.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
locks.c Merge branch 'for-next' into for-linus 2010-03-08 16:55:37 +01:00
Makefile Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client 2010-03-19 09:43:06 -07:00
mbcache.c
mpage.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
namei.c Fix the regression created by "set S_DEAD on unlink()..." commit 2010-05-15 07:16:33 -04:00
namespace.c Fix the regression created by "set S_DEAD on unlink()..." commit 2010-05-15 07:16:33 -04:00
nfsctl.c Switch may_open() and break_lease() to passing O_... 2010-03-03 13:00:21 -05:00
no-block.c
open.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
pipe.c fs: no games with DCACHE_UNHASHED 2009-12-17 10:51:40 -05:00
pnode.c Kill CL_PROPAGATION, sanitize fs/pnode.c:get_source() 2010-03-03 13:00:22 -05:00
pnode.h VFS: Clean up shared mount flag propagation 2010-03-03 14:07:55 -05:00
posix_acl.c
read_write.c do_sync_read/write() should set kiocb.ki_nbytes to be consistent 2010-03-24 16:43:29 -07:00
read_write.h
readdir.c
select.c Add generic sys_old_select() 2010-03-12 15:52:32 -08:00
seq_file.c seq_file: fix new kernel-doc warnings 2010-03-07 15:48:26 -08:00
signalfd.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
splice.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
stack.c VFS/fsstack: handle 32-bit smp + preempt + large files in fsstack_copy_inode_size 2009-12-17 10:58:17 -05:00
stat.c Add unlocked version of inode_add_bytes() function 2009-12-23 13:33:54 +01:00
super.c fs: fs/super.c needs to include backing-dev.h for !CONFIG_BLOCK 2010-04-29 20:33:35 +02:00
sync.c Catch filesystems lacking s_bdi 2010-04-25 08:54:42 +02:00
timerfd.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
utimes.c
xattr_acl.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
xattr.c sanitize xattr handler prototypes 2009-12-16 12:16:49 -05:00