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* balloc.c (ext2_free_blocks, ext2_new_block): Fix formats to avoid
-Wformat warnings.
* getblk.c (ext2_alloc_block, inode_getblk, ext2_getblk): Likewise.
* ialloc.c (ext2_count_free_inodes): Likewise.
* truncate.c (trunc_direct): Likewise.
* pager.c (pending_blocks_write, diskfs_grow): Likewise.
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* bitmap.c (count_free, find_next_zero_bit, find_first_zero_bit):
Make these all static inline.
(ffz, ffz_nibble_map): Function and variable removed.
(ffz): Replace decl with macro defined in terms of ffs.
* ext2fs.h (count_free, find_next_zero_bit, find_first_zero_bit, ffz):
Remove these declarations.
* Makefile (SRCS): Remove bitmap.c.
(LCLHDRS): Add bitmap.c here instead.
* balloc.c, ialloc.c: #include "bitmap.c" here.
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* bitmap.c (memscan): Function removed.
* ext2fs.h: Removed its decl.
* balloc.c (memscan): New static function, defined using memchr.
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* balloc.c (ext2_free_blocks): Handle freeing across group boundary,
as Linux 2.3.14 does.
* balloc.c (ext2_check_blocks_bitmap): If RO_COMPAT_SPARSE_SUPER
feature flag is set, or if group number is not a power of 3, 5, or 7
(I don't know why; this is what Linux 2.3.14 does), skip tests for
superblocks and descriptor blocks being free in bitmap.
* balloc.c (ext2_new_block): Take new arg PREALLOC_GOAL.
Use that instead of hard-coded 8 as maximum of blocks to preallocate.
Also test that instead of PREALLOC_COUNT to decide whether to
try any preallocation at all.
* getblk.c (ext2_alloc_block): Pass new arg to ext2_new_block.
Use EXT2_DEFAULT_PREALLOC_BLOCKS as default (replaces hard-coded 8);
For a regular file, use SBLOCK->s_prealloc_blocks before default.
For a directory, use SBLOCK->s_dir_prealloc_blocks if the
EXT2_FEATURE_COMPAT_DIR_PREALLOC flag is set, otherwise zero.
* inode.c (diskfs_set_translator): Pass new arg (zero).
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* ialloc.c (diskfs_alloc_node): Frob printf format to suppress warning.
* getblk.c (ext2_getblk): Likewise.
* balloc.c (ext2_free_blocks): Likewise.
* hyper.c (get_hypermetadata): Likewise.
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and just always do the tests it controlled.
Change uses of the ext2_{warning,error,panic} functions to not have the
initial function name argument (it's now supplied automagically).
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