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authorCurt Wohlgemuth <curtw@google.com>2009-07-17 10:54:08 -0400
committerTheodore Ts'o <tytso@mit.edu>2009-07-17 10:54:08 -0400
commit6487a9d3b5476ffd1bbbe97e58cf26dbeb7a5d4a (patch)
tree6f03532934774f847e281a9eb52fbf539b36f42b /.gitignore
parentf6f50e28f0cb8d7bcdfaacc83129f005dede11b1 (diff)
ext4: More buffer head reference leaks
After the patch I posted last week regarding buffer head ref leaks in no-journal mode, I looked at all the code that uses buffer heads and searched for more potential leaks. The patch below fixes the issues I found; these can occur even when a journal is present. The change to inode.c fixes a double release if ext4_journal_get_create_access() fails. The changes to namei.c are more complicated. add_dirent_to_buf() will release the input buffer head EXCEPT when it returns -ENOSPC. There are some callers of this routine that don't always do the brelse() in the event that -ENOSPC is returned. Unfortunately, to put this fix into ext4_add_entry() required capturing the return value of make_indexed_dir() and add_dirent_to_buf(). Signed-off-by: Curt Wohlgemuth <curtw@google.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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