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author | Ian Abbott <abbotti@mev.co.uk> | 2012-09-05 16:44:31 (GMT) |
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committer | Jan Kara <jack@suse.cz> | 2012-09-06 14:20:39 (GMT) |
commit | 5eec54fcde7e065eb3d8a6e70e61d90673ca706b (patch) | |
tree | b5946eb5ad36a2121334e38a1ccf417fa8babd14 /fs/btrfs/ioctl.c | |
parent | 3f6bba823767e3c78efcf1bea5b6fdf98ad80e3b (diff) | |
download | linux-fsl-qoriq-5eec54fcde7e065eb3d8a6e70e61d90673ca706b.tar.xz |
UDF: Add support for O_DIRECT
Add support for the O_DIRECT flag. There are two cases to deal with:
1. Small files stored in the ICB (inode control block?): just return 0
from the new udf_adinicb_direct_IO() handler to fall back to buffered
I/O.
2. Larger files, not stored in the ICB: nothing special here. Just call
blockdev_direct_IO() from our new udf_direct_IO() handler and tidy up
any blocks instantiated outside i_size on error. This is pretty
standard. Factor error handling code out of udf_write_begin() into new
function udf_write_failed() so it can also be called by udf_direct_IO().
Also change the whitespace in udf_aops to make it a bit neater.
Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Jan Kara <jack@suse.cz>
Diffstat (limited to 'fs/btrfs/ioctl.c')
0 files changed, 0 insertions, 0 deletions