btrfs: expand btrfs_find_item() to include find_root_ref functionality

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This patch is the second step in bootstrapping the btrfs_find_item
interface. The btrfs_find_root_ref() is similar to the former
__inode_info(); it accepts four of its parameters, and duplicates the
first half of its functionality.

Replace the one former call to btrfs_find_root_ref() with a call to
btrfs_find_item(), along with the defined key type that was used
internally by btrfs_find_root ref, and a null found key. In
btrfs_find_item(), add a test for the null key at the place where
the functionality of btrfs_find_root_ref() ends; btrfs_find_item()
then returns if the test passes. Finally, remove btrfs_find_root_ref().

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Suggested-by: Zach Brown <zab@redhat.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <clm@fb.com>

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Kelley Nielsen 2013-11-04 19:35:58 -08:00 • committed by Chris Mason

parent e33d5c3d6d

commit 75ac2dd907

3 changed files with 11 additions and 20 deletions

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10

fs/btrfs/ctree.c

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6

fs/btrfs/inode.c

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15

fs/btrfs/root-tree.c

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