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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2008-02-10 01:20:05 -0500 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-02-10 01:20:05 -0500 |
| commit | 8009f9fb3067fef6c2ca0c16f6bac786ae28639d (patch) | |
| tree | acf8bbfd2833a63baa9d2194ed30bf7e7dcb3075 /fs/ext4/bitmap.c | |
| parent | 0040d9875dcccfcb2131417b10fbd9841bc5f05b (diff) | |
| download | op-kernel-dev-8009f9fb3067fef6c2ca0c16f6bac786ae28639d.zip op-kernel-dev-8009f9fb3067fef6c2ca0c16f6bac786ae28639d.tar.gz | |
ext4: Fix circular locking dependency with migrate and rm.
In order to prevent a circular locking dependency when an unlink
operation is racing with an ext4 migration, we delay taking i_data_sem
until just before switch the inode format, and use i_mutex to prevent
writes and truncates during the first part of the migration operation.
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'fs/ext4/bitmap.c')
0 files changed, 0 insertions, 0 deletions
