https://bugzilla.kernel.org/show_bug.cgi?id=198301 Bug ID: 198301 Summary: ext4 fails to create symlink if target length is greater than block size (but smaller than PATH_MAX) Product: File System Version: 2.5 Kernel Version: Confirmed in 4.4.103 & 4.10.0 Hardware: All OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: ext4 Assignee: fs_ext4@xxxxxxxxxxxxxxxxxxxx Reporter: ernst@xxxxxxxxxxxxxxx Regression: No If the block size of an ext4 file system is smaller than PATH_MAX, ext4 will fail to create symlinks to targets with names longer than block size minus one. Expected result: Symlinks with targets up to a length of PATH_MAX - 1 can be created. Actual result: Symlinks with targets up to a length of block size - 1 can be created. If block size smaller than PATH_MAX, creating symlinks with targets equal or greater than block size and smaller than PATH_MAX will fail with ENAMETOOLONG. The strange side effect of this bug is that one can not link to every file in a file system with a block size of e.g. 1k while PATH_MAX is 4k. For reference, the original test & discussion which triggered this bug: https://github.com/pjd/pjdfstest/issues/24 -- You are receiving this mail because: You are watching the assignee of the bug.
