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[PATCH] NTFS: Critical bug fix (affects MIPS and possibly others)

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Many thanks to Pauline Ng for the detailed bug report and analysis!

Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Anton Altaparmakov 2006-06-22 14:47:15 -07:00 • committed by Linus Torvalds
parent 5d2170ad10
commit f893afbe12
1 changed files with 7 additions and 6 deletions
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13
fs/ntfs/file.c
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@ -1484,14 +1484,15 @@ static inline void ntfs_flush_dcache_pages(struct page **pages,
unsigned nr_pages) unsigned nr_pages)
{ {
BUG_ON(!nr_pages); BUG_ON(!nr_pages);
/*
* Warning: Do not do the decrement at the same time as the call to
* flush_dcache_page() because it is a NULL macro on i386 and hence the
* decrement never happens so the loop never terminates.
*/
do { do {
/* --nr_pages;
* Warning: Do not do the decrement at the same time as the
* call because flush_dcache_page() is a NULL macro on i386
* and hence the decrement never happens.
*/
flush_dcache_page(pages[nr_pages]); flush_dcache_page(pages[nr_pages]);
} while (--nr_pages > 0); } while (nr_pages > 0);
} }
/** /**