Darrick J. Wong 7136851117 mm: make snapshotting pages for stable writes a per-bio operation ...

Walking a bio's page mappings has proved problematic, so create a new
bio flag to indicate that a bio's data needs to be snapshotted in order
to guarantee stable pages during writeback.  Next, for the one user
(ext3/jbd) of snapshotting, hook all the places where writes can be
initiated without PG_writeback set, and set BIO_SNAP_STABLE there.

We must also flag journal "metadata" bios for stable writeout, since
file data can be written through the journal.  Finally, the
MS_SNAP_STABLE mount flag (only used by ext3) is now superfluous, so get
rid of it.

[[email protected]: rename _submit_bh()'s `flags' to `bio_flags', delobotomize the _submit_bh declaration]
[[email protected]: teeny cleanup]
Signed-off-by: Darrick J. Wong <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: Artem Bityutskiy <[email protected]>
Reviewed-by: Jan Kara <[email protected]>
Cc: Jens Axboe <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

2013-04-29 15:54:33 -07:00

..

acl.c

userns: Convert extN to support kuids and kgids in posix acls

2012-09-18 01:01:36 -07:00

acl.h

fs: take the ACL checks to common code

2011-07-25 14:30:23 -04:00

balloc.c

ext3: Avoid underflow of in ext3_trim_fs()

2012-11-19 21:36:12 +01:00

bitmap.c

ext3: use memweight()

2012-07-30 17:25:16 -07:00

dir.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

ext3_jbd.c

ext3: move headers to fs/ext3/

2012-03-31 16:03:16 -04:00

ext3.h

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

2012-05-25 08:14:59 -07:00

file.c

ext3: move headers to fs/ext3/

2012-03-31 16:03:16 -04:00

fsync.c

ext3: Check return value of blkdev_issue_flush()

2012-07-09 23:40:46 +02:00

hash.c

ext3: return 32/64-bit dir name hash according to usage type

2012-05-15 23:34:39 +02:00

ialloc.c

ext3: remove max_debt in find_group_orlov()

2012-04-11 11:12:44 +02:00

inode.c

Ext3: return ENOMEM rather than EIO if sb_getblk fails

2013-01-21 11:19:57 +01:00

ioctl.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

Kconfig

…

Makefile

…

namei.c

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

2013-02-26 20:16:07 -08:00

namei.h

ext3: ext3_bread usage audit

2012-10-09 23:21:42 +02:00

resize.c

Ext3: return ENOMEM rather than EIO if sb_getblk fails

2013-01-21 11:19:57 +01:00

super.c

mm: make snapshotting pages for stable writes a per-bio operation

2013-04-29 15:54:33 -07:00

symlink.c

ext3: move headers to fs/ext3/

2012-03-31 16:03:16 -04:00

xattr_security.c

ext3: move headers to fs/ext3/

2012-03-31 16:03:16 -04:00

xattr_trusted.c

ext3: move headers to fs/ext3/

2012-03-31 16:03:16 -04:00

xattr_user.c

ext3: move headers to fs/ext3/

2012-03-31 16:03:16 -04:00

xattr.c

Ext3: return ENOMEM rather than EIO if sb_getblk fails

2013-01-21 11:19:57 +01:00

xattr.h

…