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| author | Matthew Bobrowski <mbobrowski@mbobrowski.org> | 2019-11-05 15:01:51 +0300 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2019-11-05 19:31:40 +0300 |
| commit | 569342dc2485392e95b6a626281708c25014ba37 (patch) | |
| tree | c0ebf02c70223e640be3083e7b603026b572bf8a /lib/mpi/mpiutil.c | |
| parent | b1b4705d54abedfd69dcdf42779c521aa1e0fbd3 (diff) | |
| download | linux-569342dc2485392e95b6a626281708c25014ba37.tar.xz | |
ext4: move inode extension/truncate code out from ->iomap_end() callback
In preparation for implementing the iomap direct I/O modifications,
the inode extension/truncate code needs to be moved out from the
ext4_iomap_end() callback. For direct I/O, if the current code
remained, it would behave incorrrectly. Updating the inode size prior
to converting unwritten extents would potentially allow a racing
direct I/O read to find unwritten extents before being converted
correctly.
The inode extension/truncate code now resides within a new helper
ext4_handle_inode_extension(). This function has been designed so that
it can accommodate for both DAX and direct I/O extension/truncate
operations.
Signed-off-by: Matthew Bobrowski <mbobrowski@mbobrowski.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reviewed-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/d41ffa26e20b15b12895812c3cad7c91a6a59bc6.1572949325.git.mbobrowski@mbobrowski.org
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'lib/mpi/mpiutil.c')
0 files changed, 0 insertions, 0 deletions