diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2008-09-13 13:06:18 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2008-09-13 13:06:18 -0400 |
| commit | cf17fea6575cb1739552e1d0cb2b446305ee3d0c (patch) | |
| tree | 319e1044e271aeb31ad14847f369776ac5db74db /tools/perf/scripts/python/netdev-times.py | |
| parent | ae4d537211ff250a8c23c4f1227c4276cd2508ab (diff) | |
| download | kernel-cf17fea6575cb1739552e1d0cb2b446305ee3d0c.tar.gz | |
ext4: Properly update i_disksize.
With delayed allocation we use i_data_sem to update i_disksize. We need
to update i_disksize only if the new size specified is greater than the
current value and we need to make sure we don't race with other
i_disksize update. With delayed allocation we will switch to the
write_begin function for non-delayed allocation if we are low on free
blocks. This means the write_begin function for non-delayed allocation
also needs to use the same locking.
We also need to check and update i_disksize even if the new size is less
that inode.i_size because of delayed allocation.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
0 files changed, 0 insertions, 0 deletions