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| Filename | Latest commit message | Latest commit date |
|---|---|---|
9b12755135
commit 3ffbdd1f1165f1b2d6a94d1b1aabef57120deaf7 upstream.
In some cases like small FSes with no meta_bg and where the resize
doesn't need extra gdt blocks as it can fit in the current one,
s_reserved_gdt_blocks is set as 0, which causes fsmap to emit a 0
length entry, which is incorrect.
$ mkfs.ext4 -b 65536 -O bigalloc /dev/sda 5G
$ mount /dev/sda /mnt/scratch
$ xfs_io -c "fsmap -d" /mnt/scartch
0: 253:48 [0..127]: static fs metadata 128
1: 253:48 [128..255]: special 102:1 128
2: 253:48 [256..255]: special 102:2 0 <---- 0 len entry
3: 253:48 [256..383]: special 102:3 128
Fix this by adding a check for this case.
Cc: stable@kernel.org
Fixes:
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.