tree eda473cc9dd303e11ffa8920c01090219b7aa928
parent 16c1ce89948437245dd6548c743718e3b6e18cda
author Theodore Ts'o <tytso@mit.edu> 972591883 +0000
committer Theodore Ts'o <tytso@mit.edu> 972591883 +0000

Many files:
  ext2_io.h (io_channel_write_byte): Add new interface to allow callers
  	to write specific byte ranges.  This is an optional interface, which
  	not all IO channels may implement.
  unix_io.c (unix_write_byte): test_io.c (test_write_byte): Add
  	implementation of the write_byte function.
  closefs.c (write_primary_superblock, ext2fs_flush): Add a new function
  	which writes the primary superblock.  If the IO channel supports
  	writing raw bytes directly, only fields which were modified are
  	written to the disk.  This makes it safe(r) to use utilities like
  	tune2fs on a mounted filesystem.
  freefs.c (ext2fs_free): Free the original superblock if it is available.
  openfs.c (ext2fs_open): Store a copy of the original superblock when
  	opening it.
  ext2fs.h: Add a field to store the original superblock in the ext2
  	context structure.