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2008-06-12 Pavel Roskin <proski@gnu.org>

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* fs/fshelp.c (grub_fshelp_read): New function.  Implement
	linear disk read with journal translation.
	* fs/ext2.c: Use grub_fshelp_read() instead of grub_disk_read().
	* include/grub/fshelp.h: Declare grub_fshelp_read().
This commit is contained in:
proski 2008-06-12 14:48:27 +00:00
parent 40fd3a2b99
commit 16ae7781ef
4 changed files with 74 additions and 27 deletions
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9
include/grub/fshelp.h
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@ -84,6 +84,15 @@ EXPORT_FUNC(grub_fshelp_find_file) (const char *path,
enum grub_fshelp_filetype expect);
/* Read LEN bytes from the block BLOCK on disk DISK into the buffer BUF,
beginning with the block POS. Apply mappings from LOG. The blocks
have a size of LOG2BLOCKSIZE (in log2). */
grub_err_t
EXPORT_FUNC(grub_fshelp_read) (grub_disk_t disk, grub_fshelp_journal_t log,
grub_disk_addr_t block, grub_off_t pos,
grub_size_t len, char *buf, int log2blocksize);
/* Read LEN bytes from the file NODE on disk DISK into the buffer BUF,
beginning with the block POS. READ_HOOK should be set before
reading a block from the file. GET_BLOCK is used to translate file