an I/O object.
Export ext2_file_flush as a public interface.
Also minor cleanups to tighten code in other I/O abstractions, and to
mark a void * pointer as const in the ext2_file_write interface.
mkjournal.c (ext2fs_create_journal_superblock): Add safety check;
return an error if there's an attempt to create a journal less than
1024 filesystem blocks.
ext2_err.et.in, mkjournal.c: Change EXT2_JOURNAL_NOT_BLOCK and
EXT2_NO_JOURNAL_SB to be EXT2_ET_*.
initialize.c (ext2fs_initialize): Add support for initializing the
ext2 superblock for external journal devices. This basically means we
don't bother to allocate any block group descriptors.
openfs.c (ext2fs_open): Only open external journal devices if the new
flag EXT2_FLAG_JOURNAL_DEV_OK is passed to ext2fs_open. When opening
such devices, don't try to read the block group descriptors, since
they're not there.
ext2_err.et.in (EXT2_NO_JOURNAL_SB): Add new error code
mkjournal.c: Export a new function,
ext2fs_create_journal_superblock(), which allocates and returns a
buffer containing a journal superblock. This is needed by mke2fs to
create an external journal. Rewrote ext2fs_add_journal_device() so
that it no longer creates the external journal, but rather adds a
filesystem to an existing external journal. It handles all of the
UUID manipulation.
ext2fs.h: List the EXT3_FEATURE_JOURNAL_DEV as a flag supported by the
library. Define the EXT2_FLAG_JOURNAL_DEV_OK. Changed function
prototype for ext2fs_add_journal_device().
imager.c (ext2fs_image_{inode,super,bitmap}_{read,write}, ext2_fs.h,
Makefile.in: New file that has routines that save ext2fs metadata to a
file.
ext2_err.et.in (EXT2_ET_MAGIC_E2IMAGE): New error code assigned.
e2image.h: New file which defines the file format for the ext2 image
file. (Saved copy of ext2 metadata to a file as a saving throw
against worst-case damage.)
ChangeLog, Makefile.in, e2image.c:
e2image.c, Makefile.in: New program which saves ext2 metadata to a
file for people who need a last-ditch saving throw.
ext2fs.h: Add new superblock fields (s_algorithm_usage_bitmap,
s_prealloc_blocks, s_prealloc_dir_blocks). Added conditional defines
of new features COMPAT_DIR_PREALLOC, RO_COMPAT_LARGE_FILE
RO_COMPAT_BTREE_DIR, INCOMPAT_COMPRESSION, INCOMPAT_DIRNAME_SIZE.
Changed the library to declare that we support COMPAT_DIR_PREALLOC,
INCOMPAT_DIRNAME_SIZE, RO_COMPAT_LARGE_FILE.
fileio.c: Rename function ext2fs_file_llseek to be ext2fs_file_lseek,
which is more accurate.
block.c: Add new function ext2fs_block_iterate3 which calls the
iterator function with the blockcount argument of type blkcnt_t. This
version of the function is allowed to handle large files; the other
fucntions are not.
ext2fs.h: Add new type blkcnt_t
ext2_err.et.in: Add error code EXT2_ET_FILE_TOO_BIG
block.c (ext2fs_block_iterate2): Fix bug where the block count field
wasn't getting correctly incremented for sparse files when the
indirect or doubly-indirect block specified in the inode was zero.
unlink.c (unlink_proc):
lookup.c (lookup_proc):
link.c (link_proc):
get_pathname.c (get_pathname_proc):
dir_iterate.c (ext2fs_process_dir_block): Mask off high 8 bits from
dirent->name_len, so it can be used for other purposes.
ext2fs.h: Add definition of EXT2_FEATURE_INCOMPAT_DIRNAME_SIZE, and
indicate that we have support for this incompatible option.
Makefile.in, tst_getsize.c: Added new file which is used to test the
ext2fs_get_device_size function.
ext2_err.et.in (EXT2_ET_UNIMPLEMENTED): Added new error code.
Rename new error codes to _ET_ in them for consistency.
ChangeLog, et_c.awk, et_h.awk:
Remove support for non STDC compilers, since the workarounds caused
problems with the header file.
Makefile.pq:
Checkpoint of powerquest work.
Fix buggy use of the INLINE macros.
ChangeLog, dblist.c, ext2_err.et.in, mkdir.c:
dblist.c, mkdir.c: use EXT2_DIR_EXISTS and EXT2_DB_NOT_FOUND instead
of the system error messages.
ext2_err.et.in: Added new error messages EXT2_DIR_EXISTS and
EXT2_DB_NOT_FOUND
ext2fs.h: Added function declarations and constants for bmap.c and
fileio.c.
ext2_err.et.in: Added new error messages EXT2_FILE_RO and
EXT2_ET_MAGIC_EXT2_FILE
Makefile.in: Added files bmap.c and fileio.c, and temporarily
commented out brel_ma.c and irel_ma.c
bmap.c: New file which maps a file's logical block number to its
physical block number.
fileio.c: New file which implements simple file reading and writing
primitives.
alloc.c (ext2fs_alloc_block): New function which allocates a block,
zeros it, and updates the filesystem accounting records appropriately.
ext2_err.et.in: Added new error codes: EXT2_NO_MEMORY,
EXT2_INVALID_ARGUMENT, EXT2_BLOCK_ALLOC_FAIL, EXT2_INODE_ALLOC_FAIL,
EXT2_NOT_DIRECTORY
Change various library files to use these errors instead of EINVAL,
ENOENT, etc.
unix_io.c (unix_read_blk): If ext2fs_llseek() fails, but errno is
zero, then return EXT2_IO_LLSEEK_FAILED.
ext2_err.et.in: Add a new error code, EXT2_IO_LLSEEK_FAILED.
Theodore Ts'o