The extent count calculation works correctly with the FIBMAP ioctl in
verbose (-v) mode, but without the verbose option, the calculation was
broken because we weren't properly updating the fm_ext data structures
in non-verbose mode.
Addresses-Launchpad-Bug: #1356496
Signed-off-by: Theodore Ts'o <ty...@mit.edu>
---
misc/filefrag.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/misc/filefrag.c b/misc/filefrag.c
index d71bf43..c1a8684 100644
--- a/misc/filefrag.c
+++ b/misc/filefrag.c
@@ -329,16 +329,17 @@ static int filefrag_fibmap(int fd, int blk_shift, int
*num_extents,
print_extent_info(&fm_ext, *num_extents - 1,
(last_block + 1) * st->st_blksize,
blk_shift, st);
- fm_ext.fe_logical = logical;
- fm_ext.fe_physical = block * st->st_blksize;
fm_ext.fe_length = 0;
(*num_extents)++;
} else if (last_block && (block != last_block + 1)) {
if (verbose)
printf("Discontinuity: Block %ld is at %lu (was
"
"%lu)\n", i, block, last_block + 1);
+ fm_ext.fe_length = 0;
(*num_extents)++;
}
+ fm_ext.fe_logical = logical;
+ fm_ext.fe_physical = block * st->st_blksize;
fm_ext.fe_length += st->st_blksize;
last_block = block;
}
--
2.0.0
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https://bugs.launchpad.net/bugs/1356496
Title:
filefrag shows wrong number of extents
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