Btrfs: split up __extent_writepage to lower stack usage

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__extent_writepage has two unrelated parts.  First it does the delayed
allocation dance and second it does the mapping and IO for the page
we're actually writing.

This splits it up into those two parts so the stack from one doesn't
impact the stack from the other.

Signed-off-by: Chris Mason <clm@fb.com>

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This commit is contained in:

Chris Mason 2014-05-21 13:35:51 -07:00

parent fc4adbff82

commit 40f765805f

2 changed files with 194 additions and 138 deletions

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330

fs/btrfs/extent_io.c

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2

fs/btrfs/inode.c

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