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authorIan Abbott <abbotti@mev.co.uk>2012-09-05 17:44:31 +0100
committerJan Kara <jack@suse.cz>2012-09-06 16:20:39 +0200
commit5eec54fcde7e065eb3d8a6e70e61d90673ca706b (patch)
treeb5946eb5ad36a2121334e38a1ccf417fa8babd14 /fs/jbd
parent3f6bba823767e3c78efcf1bea5b6fdf98ad80e3b (diff)
downloadlinux-5eec54fcde7e065eb3d8a6e70e61d90673ca706b.tar.bz2
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>
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