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Matthew Bobrowski authored
In preparation for porting across the ext4 direct I/O path over to the iomap infrastructure, split up the IOMAP_WRITE branch that's currently within ext4_iomap_begin() into a separate helper ext4_alloc_iomap(). This way, when we add in the necessary code for direct I/O, we don't end up with ext4_iomap_begin() becoming a monstrous twisty maze. 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/50eef383add1ea529651640574111076c55aca9f.1572949325.git.mbobrowski@mbobrowski.orgSigned-off-by:
Theodore Ts'o <tytso@mit.edu>
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