f2fs: check the level before calling get_nid function
The caller of get_nid should be careful not to put lower value than NODE_DIR1_BLOCK in case of level is zero. Signed-off-by: Changman Lee <cm224.lee@samsung.com> Reviewed-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
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@ -403,6 +403,7 @@ int get_dnode_of_data(struct dnode_of_data *dn, pgoff_t index, int mode)
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return PTR_ERR(npage[0]);
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return PTR_ERR(npage[0]);
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parent = npage[0];
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parent = npage[0];
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if (level != 0)
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nids[1] = get_nid(parent, offset[0], true);
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nids[1] = get_nid(parent, offset[0], true);
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dn->inode_page = npage[0];
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dn->inode_page = npage[0];
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dn->inode_page_locked = true;
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dn->inode_page_locked = true;
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