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| /openbmc/linux/fs/ext4/ |
| H A D | move_extent.c | 6e263146 Sun Jul 27 21:32:27 CDT 2014 Dmitry Monakhov <dmonakhov@openvz.org> ext4: fix incorrect locking in move_extent_per_page
If we have to copy data we must drop i_data_sem because of
get_blocks() will be called inside mext_page_mkuptodate(), but later we must
reacquire it again because we are about to change extent's tree
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
6e263146 Sun Jul 27 21:32:27 CDT 2014 Dmitry Monakhov <dmonakhov@openvz.org> ext4: fix incorrect locking in move_extent_per_page
If we have to copy data we must drop i_data_sem because of
get_blocks() will be called inside mext_page_mkuptodate(), but later we must
reacquire it again because we are about to change extent's tree
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Jan Kara <jack@suse.cz>
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