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filefrag: fix an off by one error in when printing the next expected block 

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
bitmap-optimize
Theodore Ts'o 2011-09-30 19:18:09 -04:00
parent a00be17e47
commit 9c58eaf7d3
1 changed files with 5 additions and 5 deletions
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10
misc/filefrag.c
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@ -170,7 +170,7 @@ static int filefrag_fiemap(int fd, int blk_shift, int *num_extents)
struct fiemap_extent *fm_ext = &fiemap->fm_extents[0];
int count = (sizeof(buf) - sizeof(*fiemap)) /
sizeof(struct fiemap_extent);
unsigned long long last_blk = 0;
unsigned long long expected = 0;
unsigned long flags = 0;
unsigned int i;
static int fiemap_incompat_printed;
@ -235,15 +235,15 @@ static int filefrag_fiemap(int fd, int blk_shift, int *num_extents)
ext_len = fm_ext[i].fe_length >> blk_shift;
logical_blk = fm_ext[i].fe_logical >> blk_shift;
if (logical_blk && phy_blk != last_blk + 1)
if (logical_blk && phy_blk != expected)
tot_extents++;
else
last_blk = 0;
expected = 0;
if (verbose)
print_extent_info(&fm_ext[i], n, last_blk,
print_extent_info(&fm_ext[i], n, expected,
blk_shift);
last_blk = phy_blk + ext_len - 1;
expected = phy_blk + ext_len;
if (fm_ext[i].fe_flags & FIEMAP_EXTENT_LAST)
last = 1;
n++;