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iomap: prepare iomap_fiemap for attribute mappings

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By bassing through an -ENOENT, similar to the old XFS implementation of
FIEMAP_FLAG_XATTR.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
[hch: split from a larger patch]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Dave Chinner 2016-08-17 08:41:34 +10:00 committed by Dave Chinner
parent 8896b8f609
commit ac2dc058bc
1 changed files with 3 additions and 0 deletions
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3
fs/iomap.c
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@ -476,6 +476,9 @@ int iomap_fiemap(struct inode *inode, struct fiemap_extent_info *fi,
while (len > 0) { while (len > 0) {
ret = iomap_apply(inode, start, len, 0, ops, &ctx, ret = iomap_apply(inode, start, len, 0, ops, &ctx,
iomap_fiemap_actor); iomap_fiemap_actor);
/* inode with no (attribute) mapping will give ENOENT */
if (ret == -ENOENT)
break;
if (ret < 0) if (ret < 0)
return ret; return ret;
if (ret == 0) if (ret == 0)