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| author | Jim Meyering <meyering@redhat.com> | 2010-05-21 18:28:42 +0200 |
|---|---|---|
| committer | Jim Meyering <meyering@redhat.com> | 2011-01-22 12:16:42 +0100 |
| commit | 811248697c28284b48833e2fc88a837c763e3642 (patch) | |
| tree | eed3b5f200423672324e299ef4f811eaf9a964d2 | |
| parent | tests: sparse-fiemap: factor out some set-up (diff) | |
| download | coreutils-811248697c28284b48833e2fc88a837c763e3642.tar.gz coreutils-811248697c28284b48833e2fc88a837c763e3642.zip | |
tests: exercise more of the new FIEMAP copying code
* tests/cp/sparse-fiemap: Ensure that a file with many extents (more
than fit in copy.c's internal 4KiB buffer) is copied properly.
| -rwxr-xr-x | tests/cp/sparse-fiemap | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/tests/cp/sparse-fiemap b/tests/cp/sparse-fiemap index 21b02acac..3608db3fd 100755 --- a/tests/cp/sparse-fiemap +++ b/tests/cp/sparse-fiemap @@ -53,4 +53,42 @@ timeout 10 cp --sparse=always sparse fiemap || fail=1 # in bytes as the original. test $(stat --printf %s sparse) = $(stat --printf %s fiemap) || fail=1 +# ================================================= +# Ensure that we exercise the FIEMAP-copying code enough +# to provoke at least two iterations of the do...while loop +# in which it calls ioctl (fd, FS_IOC_FIEMAP,... +# This also verifies that non-trivial extents are preserved. + +$PERL -e 1 || skip_test_ 'skipping part of this test; you lack perl' + +$PERL -e 'BEGIN { $n = 16 * 1024; *F = *STDOUT }' \ + -e 'for (1..100) { sysseek (*F, $n, 1)' \ + -e '&& syswrite (*F, "."x$n) or die "$!"}' > j1 || fail=1 + +cp --sparse=always j1 j2 || fail=1 +cmp j1 j2 || fail=1 + +filefrag j1 | grep extent \ + || skip_test_ 'skipping part of this test; you lack filefrag' + +# Here is sample filefrag output: +# $ perl -e 'BEGIN{$n=16*1024; *F=*STDOUT}' \ +# -e 'for (1..5) { sysseek(*F,$n,1)' \ +# -e '&& syswrite *F,"."x$n or die "$!"}' > j +# $ filefrag -v j +# File system type is: ef53 +# File size of j is 163840 (40 blocks, blocksize 4096) +# ext logical physical expected length flags +# 0 4 6258884 4 +# 1 12 6258892 6258887 4 +# 2 20 6258900 6258895 4 +# 3 28 6258908 6258903 4 +# 4 36 6258916 6258911 4 eof +# j: 6 extents found + +# exclude the physical block numbers; they always differ +filefrag -v j1 | awk '/^ / {print $1,$2,$NF}' > ff1 || fail=1 +filefrag -v j2 | awk '/^ / {print $1,$2,$NF}' > ff2 || fail=1 +compare ff1 ff2 || fail=1 + Exit $fail |