The blocks per page could be less or quals to 1 with the large block support in VM.
The patch fixed the way to calculate the number of blocks to reserve in journal in the
case blocksize > pagesize.
Signed-off-by: Mingming Cao <[email protected]>
Index: my2.6/fs/jbd/journal.c
===================================================================
--- my2.6.orig/fs/jbd/journal.c 2007-08-31 13:27:16.000000000 -0700
+++ my2.6/fs/jbd/journal.c 2007-08-31 13:28:18.000000000 -0700
@@ -1611,7 +1611,12 @@ void journal_ack_err(journal_t *journal)
int journal_blocks_per_page(struct inode *inode)
{
- return 1 << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
+ int bits = PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits;
+
+ if (bits > 0)
+ return 1 << bits;
+ else
+ return 1;
}
/*
Index: my2.6/fs/jbd2/journal.c
===================================================================
--- my2.6.orig/fs/jbd2/journal.c 2007-08-31 13:32:21.000000000 -0700
+++ my2.6/fs/jbd2/journal.c 2007-08-31 13:32:30.000000000 -0700
@@ -1612,7 +1612,12 @@ void jbd2_journal_ack_err(journal_t *jou
int jbd2_journal_blocks_per_page(struct inode *inode)
{
- return 1 << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
+ int bits = PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits;
+
+ if (bits > 0)
+ return 1 << bits;
+ else
+ return 1;
}
/*
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
