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| author | Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> | 2010-07-27 11:56:07 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2010-07-27 11:56:07 -0400 |
| commit | d889dc8382c4d71b6d538b7b13777bc1ec51df10 (patch) | |
| tree | e789637cb83e053a5d9706d4a66d20411cec2261 /firmware/.gitignore | |
| parent | 79e8303677fc15f508b9877e0fea1925c4add6f3 (diff) | |
| download | op-kernel-dev-d889dc8382c4d71b6d538b7b13777bc1ec51df10.zip op-kernel-dev-d889dc8382c4d71b6d538b7b13777bc1ec51df10.tar.gz | |
ext4: fix EFBIG edge case when writing to large non-extent file
By running the following reproducer, we can confirm that the write
system call returns with 0 when it should return the error EFBIG.
#!/bin/sh
/bin/dd if=/dev/zero of=./img bs=1k count=1 seek=1024k > /dev/null 2>&1
/sbin/mkfs.ext3 -Fq ./img
/bin/mount -o loop -t ext4 ./img /mnt
/bin/touch /mnt/file
strace /bin/dd if=/dev/zero of=/mnt/file conv=notrunc bs=1k count=1 seek=$((2194719883264/1024)) 2>&1 | /bin/egrep "write.* 1024\) = "
/bin/umount /mnt
exit
Signed-off-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Eric Sandeen <sandeen@redhat.com>
Diffstat (limited to 'firmware/.gitignore')
0 files changed, 0 insertions, 0 deletions
