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OpenCloudOS-Kernel
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Martin K. Petersen c72758f337 block: Export I/O topology for block devices and partitions 
To support devices with physical block sizes bigger than 512 bytes we
need to ensure proper alignment.  This patch adds support for exposing
I/O topology characteristics as devices are stacked.

  logical_block_size is the smallest unit the device can address.

  physical_block_size indicates the smallest I/O the device can write
  without incurring a read-modify-write penalty.

  The io_min parameter is the smallest preferred I/O size reported by
  the device.  In many cases this is the same as the physical block
  size.  However, the io_min parameter can be scaled up when stacking
  (RAID5 chunk size > physical block size).

  The io_opt characteristic indicates the optimal I/O size reported by
  the device.  This is usually the stripe width for arrays.

  The alignment_offset parameter indicates the number of bytes the start
  of the device/partition is offset from the device's natural alignment.
  Partition tools and MD/DM utilities can use this to pad their offsets
  so filesystems start on proper boundaries.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
 		2009-05-22 23:22:55 +02:00
..
9p Fix a leak in failure exit in 9p ->get_sb() 2009-05-09 10:49:40 -04:00
adfs fs/adfs: return f_fsid for statfs(2) 2009-04-02 19:05:08 -07:00
affs Fix races around the access to ->s_options 2009-05-09 10:51:34 -04:00
afs Fix races around the access to ->s_options 2009-05-09 10:51:34 -04:00
autofs Fix autofs_expire() 2009-04-20 23:01:15 -04:00
autofs4 autofs4: fix incorrect return in autofs4_mount_busy() 2009-05-02 15:36:09 -07:00
befs befs: fix build on parisc 2009-04-08 10:21:43 -07:00
bfs fs/Kconfig: move bfs out 2009-01-22 13:15:57 +03:00
btrfs Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable 2009-05-14 19:18:44 -07:00
cachefiles CacheFiles: A cache that backs onto a mounted filesystem 2009-04-03 16:42:41 +01:00
cifs [CIFS] fix posix open regression 2009-05-21 22:38:08 +00:00
coda splice: implement default splice_read method 2009-05-11 14:13:10 +02:00
configfs configfs: Fix Trivial Warning in fs/configfs/symlink.c 2009-04-21 12:59:21 -07:00
cramfs fs/cramfs: return f_fsid for statfs(2) 2009-04-02 19:05:08 -07:00
debugfs debugfs: function to know if debugfs is initialized 2009-03-23 16:25:46 +01:00
devpts devpts: correctly set default options 2009-05-15 08:03:23 -07:00
dlm dlm: fix length calculation in compat code 2009-03-11 12:23:59 -05:00
ecryptfs Convert obvious places to deactivate_locked_super() 2009-05-09 10:49:40 -04:00
efs fs/efs: return f_fsid for statfs(2) 2009-04-02 19:05:09 -07:00
exofs block: add rq->resid_len 2009-05-11 09:50:53 +02:00
exportfs
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ext2 ext2: missing unlock in ext2_quota_write() 2009-04-27 16:49:52 +02:00
ext3 block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
ext4 block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
fat vfat: Note the NLS requirement 2009-04-17 09:32:11 -07:00
freevxfs fs/Kconfig: move vxfs out 2009-01-22 13:15:58 +03:00
fscache FS-Cache: Implement data I/O part of netfs API 2009-04-03 16:42:39 +01:00
fuse Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse 2009-05-13 16:32:57 -07:00
gfs2 block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
hfs hfs: fix memory leak when unmounting 2009-04-13 15:04:29 -07:00
hfsplus Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2009-04-02 21:09:10 -07:00
hostfs constify dentry_operations: misc filesystems 2009-03-27 14:44:00 -04:00
hpfs Fix races around the access to ->s_options 2009-05-09 10:51:34 -04:00
hppfs hppfs: hppfs_read_file() may return -ERROR 2009-04-02 19:04:53 -07:00
hugetlbfs Remove implementation of readpage from the hugetlbfs_aops 2009-05-13 08:04:45 -07:00
isofs fs/isofs: return f_fsid for statfs(2) 2009-04-02 19:05:09 -07:00
jbd Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 2009-04-24 08:37:40 -07:00
jbd2 jbd2: use SWRITE_SYNC_PLUG when writing synchronous revoke records 2009-04-14 07:50:56 -04:00
jffs2 Merge git://git.infradead.org/mtd-2.6 2009-04-06 14:56:26 -07:00
jfs New helper - current_umask() 2009-03-31 23:00:26 -04:00
lockd lockd: fix list corruption on lockd restart 2009-05-06 17:19:36 -04:00
minix fs/minix: return f_fsid for statfs(2) 2009-04-02 19:05:09 -07:00
ncpfs ncpfs: use memdup_user() 2009-04-20 23:02:51 -04:00
nfs nfs: Fix NFS v4 client handling of MAY_EXEC in nfs_permission. 2009-05-18 20:11:12 -07:00
nfs_common
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nfsd nfsd: silence lockdep warning 2009-05-11 17:23:14 -04:00
nilfs2 block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
nls
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notify inotify: use GFP_NOFS in kernel_event() to work around a lockdep false-positive 2009-05-06 16:36:09 -07:00
ntfs block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
ocfs2 block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
omfs Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 2009-04-02 21:09:10 -07:00
openpromfs zero i_uid/i_gid on inode allocation 2009-01-05 11:54:28 -05:00
partitions block: Export I/O topology for block devices and partitions 2009-05-22 23:22:55 +02:00
proc Convert obvious places to deactivate_locked_super() 2009-05-09 10:49:40 -04:00
qnx4 fs/qnx4: return f_fsid for statfs(2) 2009-04-02 19:05:10 -07:00
quota quota: remove obsolete comments in fs/quota/Makefile 2009-04-27 16:49:52 +02:00
ramfs ramfs: fix double freeing s_fs_info on failed mount 2009-04-07 07:39:59 -07:00
reiserfs reiserfs: fixup perms when xattrs are disabled 2009-05-17 11:45:45 -07:00
romfs ROMFS: romfs_dev_read() error ignored 2009-05-09 10:49:41 -04:00
smbfs constify dentry_operations: misc filesystems 2009-03-27 14:44:00 -04:00
squashfs Squashfs: cody tidying, remove commented out line in Makefile 2009-05-13 03:25:20 +01:00
sysfs sysfs: use memdup_user() 2009-04-20 23:02:50 -04:00
sysv fs/sysv: return f_fsid for statfs(2) 2009-04-02 19:05:10 -07:00
ubifs Convert obvious places to deactivate_locked_super() 2009-05-09 10:49:40 -04:00
udf block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
ufs switch ufs directories to ufs_sync_file() 2009-05-09 10:49:42 -04:00
xfs block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
Kconfig nilfs2: update makefile and Kconfig 2009-04-07 08:31:16 -07:00
Kconfig.binfmt CORE_DUMP_DEFAULT_ELF_HEADERS depends on ELF_CORE 2009-01-09 16:54:41 -08:00
Makefile nilfs2: update makefile and Kconfig 2009-04-07 08:31:16 -07:00
aio.c aio: lookup_ioctx can return the wrong value when looking up a bogus context 2009-03-19 15:57:18 -07:00
anon_inodes.c constify dentry_operations: rest 2009-03-27 14:44:03 -04:00
attr.c vfs: Use lowercase names of quota functions 2009-03-26 02:18:35 +01:00
bad_inode.c
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binfmt_aout.c
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binfmt_elf.c Trim includes in binfmt_elf 2009-03-31 23:00:27 -04:00
binfmt_elf_fdpic.c ptrace: s/parent/real_parent/ in binfmt_elf_fdpic.c 2009-05-02 15:36:10 -07:00
binfmt_em86.c
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binfmt_flat.c FLAT: Don't attempt to expand the userspace stack to fill the space allocated 2009-01-08 12:04:47 +00:00
binfmt_misc.c fs/binfmt_misc.c: add terminating newline to /proc/sys/fs/binfmt_misc/status 2009-01-06 15:59:19 -08:00
binfmt_script.c
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binfmt_som.c Don't crap into descriptor table in binfmt_som 2009-03-31 23:00:28 -04:00
bio-integrity.c block: add private bio_set for bio integrity allocations 2009-03-24 12:35:17 +01:00
bio.c block: Use accessor functions for queue limits 2009-05-22 23:22:54 +02:00
block_dev.c block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
buffer.c block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
char_dev.c fs: fix name overwrite in __register_chrdev_region() 2009-01-06 15:59:13 -08:00
compat.c do_execve() must not clear fs->in_exec if it was set by another thread 2009-04-24 07:39:45 -07:00
compat_binfmt_elf.c
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compat_ioctl.c fs/compat_ioctl: fix build when !BLOCK 2009-04-20 23:01:16 -04:00
dcache.c fs: dcache fix LRU ordering 2009-05-09 10:49:40 -04:00
dcookies.c [CVE-2009-0029] System call wrapper special cases 2009-01-14 14:15:18 +01:00
direct-io.c block: Do away with the notion of hardsect_size 2009-05-22 23:22:54 +02:00
drop_caches.c vfs: skip I_CLEAR state inodes 2009-04-02 19:04:48 -07:00
eventfd.c epoll keyed wakeups: make eventfd use keyed wakeups 2009-04-01 08:59:20 -07:00
eventpoll.c epoll: fix size check in epoll_create() 2009-05-12 14:11:35 -07:00
exec.c Switch open_exec() and sys_uselib() to do_open_filp() 2009-05-09 10:49:42 -04:00
fcntl.c dup2: Fix return value with oldfd == newfd and invalid fd 2009-05-11 12:18:06 -07:00
fifo.c
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file.c
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file_table.c trivial: remove unused variable 'path' in alloc_file() 2009-03-30 15:22:03 +02:00
filesystems.c fs: Mark get_filesystem_list() as __init function. 2009-04-20 23:02:52 -04:00
fs-writeback.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2009-04-03 15:24:35 -07:00
fs_struct.c Get rid of indirect include of fs_struct.h 2009-03-31 23:00:27 -04:00
generic_acl.c New helper - current_umask() 2009-03-31 23:00:26 -04:00
inode.c Make checkpatch.pl shut up on fs/inode.c 2009-05-09 10:49:41 -04:00
internal.h New locking/refcounting for fs_struct 2009-03-31 23:00:26 -04:00
ioctl.c fiemap: fix problem with setting FIEMAP_EXTENT_LAST 2009-05-06 16:36:09 -07:00
ioprio.c [CVE-2009-0029] System call wrappers part 28 2009-01-14 14:15:30 +01:00
libfs.c Convert obvious places to deactivate_locked_super() 2009-05-09 10:49:40 -04:00
locks.c [CVE-2009-0029] System call wrappers part 16 2009-01-14 14:15:25 +01:00
mbcache.c
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mpage.c Remove two unneeded exports and make two symbols static in fs/mpage.c 2009-04-01 07:38:54 -04:00
namei.c Switch open_exec() and sys_uselib() to do_open_filp() 2009-05-09 10:49:42 -04:00
namespace.c Fix races around the access to ->s_options 2009-05-09 10:51:34 -04:00
nfsctl.c [CVE-2009-0029] System call wrappers part 27 2009-01-14 14:15:29 +01:00
no-block.c
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open.c Switch open_exec() and sys_uselib() to do_open_filp() 2009-05-09 10:49:42 -04:00
pipe.c splice: implement default splice_read method 2009-05-11 14:13:10 +02:00
pnode.c
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pnode.h
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posix_acl.c
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read_write.c splice: implement default splice_read method 2009-05-11 14:13:10 +02:00
read_write.h
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readdir.c [CVE-2009-0029] System call wrappers part 32 2009-01-14 14:15:31 +01:00
select.c [CVE-2009-0029] System call wrappers part 32 2009-01-14 14:15:31 +01:00
seq_file.c cpumask: fix seq_bitmap_*() functions. 2009-03-30 22:05:11 +10:30
signalfd.c [CVE-2009-0029] System call wrappers part 31 2009-01-14 14:15:31 +01:00
splice.c splice: fix kmaps in default_file_splice_write() 2009-05-19 11:37:46 +02:00
stack.c
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stat.c kill vfs_stat_fd / vfs_lstat_fd 2009-04-20 23:02:52 -04:00
super.c NULL noise in fs/super.c:kill_bdev_super() 2009-05-09 10:49:41 -04:00
sync.c Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-quota-2.6 2009-03-27 14:48:34 -07:00
timerfd.c timerfd: add flags check 2009-02-18 15:37:53 -08:00
utimes.c [CVE-2009-0029] System call wrappers part 30 2009-01-14 14:15:30 +01:00
xattr.c xattr: use memdup_user() 2009-04-20 23:02:50 -04:00
xattr_acl.c
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