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@@ -30,6 +30,7 @@ struct rock_state {
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int cont_size;
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int cont_extent;
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int cont_offset;
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+ int cont_loops;
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struct inode *inode;
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};
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@@ -73,6 +74,9 @@ static void init_rock_state(struct rock_state *rs, struct inode *inode)
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rs->inode = inode;
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}
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+/* Maximum number of Rock Ridge continuation entries */
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+#define RR_MAX_CE_ENTRIES 32
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+
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/*
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* Returns 0 if the caller should continue scanning, 1 if the scan must end
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* and -ve on error.
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@@ -105,6 +109,8 @@ static int rock_continue(struct rock_state *rs)
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goto out;
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}
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ret = -EIO;
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+ if (++rs->cont_loops >= RR_MAX_CE_ENTRIES)
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+ goto out;
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bh = sb_bread(rs->inode->i_sb, rs->cont_extent);
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if (bh) {
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memcpy(rs->buffer, bh->b_data + rs->cont_offset,
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