Commit e19ef527 authored by Jaegeuk Kim's avatar Jaegeuk Kim
Browse files

f2fs: avoid buggy functions 



This patch avoids to use a buggy function for now.
It needs to fix them later.

Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 08b95126

fs/f2fs/segment.c

+18 −0
Original line number Diff line number Diff line
@@ -75,6 +75,14 @@ static inline unsigned long __reverse_ffs(unsigned long word) 
static unsigned long __find_rev_next_bit(const unsigned long *addr,

			unsigned long size, unsigned long offset)

{

	while (!f2fs_test_bit(offset, (unsigned char *)addr))

		offset++;



	if (offset > size)

		offset = size;



	return offset;

#if 0

	const unsigned long *p = addr + BIT_WORD(offset);

	unsigned long result = offset & ~(BITS_PER_LONG - 1);

	unsigned long tmp;
@@ -121,11 +129,20 @@ static unsigned long __find_rev_next_bit(const unsigned long *addr, 
		return result + size;   /* Nope. */

found_middle:

	return result + __reverse_ffs(tmp);

#endif

}



static unsigned long __find_rev_next_zero_bit(const unsigned long *addr,

			unsigned long size, unsigned long offset)

{

	while (f2fs_test_bit(offset, (unsigned char *)addr))

		offset++;



	if (offset > size)

		offset = size;



	return offset;

#if 0

	const unsigned long *p = addr + BIT_WORD(offset);

	unsigned long result = offset & ~(BITS_PER_LONG - 1);

	unsigned long tmp;
@@ -173,6 +190,7 @@ static unsigned long __find_rev_next_zero_bit(const unsigned long *addr, 
		return result + size;   /* Nope. */

found_middle:

	return result + __reverse_ffz(tmp);

#endif

}



void register_inmem_page(struct inode *inode, struct page *page)