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authorValerie Clement <valerie.clement@bull.net>2008-02-15 13:43:07 -0500
committerTheodore Ts'o <tytso@mit.edu>2008-02-15 13:43:07 -0500
commit74d3487fc8aa58cec16dff7239dea1ca59bdab0e (patch)
treee7f2e3b107bc7ff98ae4a02d0deb44809ae53394 /scripts/basic
parente56eb6590693a5a340e8f596db2768a6e1b9e236 (diff)
ext4: modify block allocation algorithm for the last group
When a directory inode is allocated in the last group and the last group contains less than s_blocks_per_group blocks, the initial block allocated for the directory is not always allocated in the same group as the directory inode, but in one of the first groups of the filesystem (group 1 for example). Depending on the current process's pid, ext4_find_near() and ext4_ext_find_goal() can return a block number greater than the maximum blocks count in the filesystem and in that case the block will be not allocated in the same group as the inode. The following patch fixes the problem. Should the modification also be done in ext2/3 code? Signed-off-by: Valerie Clement <valerie.clement@bull.net> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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