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[PATCH] reiserfs: fix transaction overflowing

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This patch fixes a bug in reiserfs truncate.  A transaction might overflow
when truncating long highly fragmented file.  The fix is to split
truncation into several transactions to avoid overflowing.

Signed-off-by: Vladimir V. Saveliev <vs@namesys.com>
Cc; Charles McColgan <cm@chuck.net>
Cc: Alexander Zarochentsev <zam@namesys.com>
Cc: Hans Reiser <reiser@namesys.com>
Cc: Chris Mason <mason@suse.com>
Cc: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Alexander Zarochentzev 2006-03-25 03:06:57 -08:00 • committed by Linus Torvalds
parent bdfc326614
commit 23f9e0f891
2 changed files with 71 additions and 132 deletions
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5
include/linux/reiserfs_fs.h
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@ -1704,6 +1704,11 @@ static inline int reiserfs_transaction_running(struct super_block *s)
return 0;
}
static inline int reiserfs_transaction_free_space(struct reiserfs_transaction_handle *th)
{
return th->t_blocks_allocated - th->t_blocks_logged;
}
int reiserfs_async_progress_wait(struct super_block *s);
struct reiserfs_transaction_handle *reiserfs_persistent_transaction(struct