similar to: [PATCH] ext2: Don't load whole files into memory when copying to the appliance (RHBZ#1113065).

The ext2 filesystem on disk format has two ways to store symlinks. For symlinks >= 60 bytes in length, they are stored as files (so-called "slow symlinks"). For shorter symlinks the symlink is stored in the inode ("fast symlinks"). Previously we only created slow symlinks even if there are shorter than 60 bytes. This didn't matter until recently, when a change went

The ext2 filesystem on disk format has two ways to store symlinks. For symlinks >= 60 bytes in length, they are stored as files (so-called "slow symlinks"). For shorter symlinks the symlink is stored in the inode ("fast symlinks"). Previously we only created slow symlinks even if they are shorter than 60 bytes. This didn't matter until recently, when a change went

Use an helper struct for holding the ext2_filsys variable, so that can be used to add more data. --- src/ext2fs-c.c | 77 +++++++++++++++++++++++++++++++--------------------------- 1 file changed, 41 insertions(+), 36 deletions(-) diff --git a/src/ext2fs-c.c b/src/ext2fs-c.c index 70755c9..8eab24c 100644 --- a/src/ext2fs-c.c +++ b/src/ext2fs-c.c @@ -52,6 +52,11 @@ /* fts.h in glibc is broken,

--- .gitignore | 6 +- .gitmodules | 3 - HACKING | 41 +++ Makefile.am | 6 +- README | 7 +- TODO | 61 +--- autobuild.sh | 65 ---- autogen.sh | 12 - configure.ac | 27

We created symlinks in two steps, by creating the empty inode and then calling ext2fs_symlink to populate it. This created broken symlinks where the directory name contained a / character, eg: lrwxrwxrwx 1 root root 7 Nov 26 08:43 /bin -> usr/bin lrwxrwxrwx 1 root root 7 Nov 26 08:43 /lib -> usr/lib lrwxrwxrwx 1 root root 9 Nov 26 08:43 /lib64 -> usr/lib64 lrwxrwxrwx 1

From: "Richard W.M. Jones" <rjones@redhat.com> This plugin allows you to create a complete ext2 filesystem in a GPT partitioned disk image. This can be attached as a disk to a Linux virtual machine. It is implemented using libext2fs (the same as supermin). Although there is some overlap with nbdkit-iso-plugin and nbdkit-floppy-plugin, the implementations and use cases of all

On 2/19/19 1:49 AM, Richard W.M. Jones wrote: > From: "Richard W.M. Jones" <rjones@redhat.com> > > This plugin allows you to create a complete ext2 filesystem in a GPT > partitioned disk image. This can be attached as a disk to a Linux > virtual machine. It is implemented using libext2fs (the same as > supermin). > > Although there is some overlap with

Check early that there are enough free blocks to store each file, erroring out with ENOSPC if not; this avoids slightly more obscure errors later on. --- src/ext2fs-c.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/src/ext2fs-c.c b/src/ext2fs-c.c index f01ca9d..e45980a 100644 --- a/src/ext2fs-c.c +++ b/src/ext2fs-c.c @@ -52,6 +52,9 @@ /* fts.h in glibc is broken,

Hi, to ease debugging issues with appliances (e.g. when used in libguestfs), using --include-packagelist will add a file containing the list of all the packages used. Thanks, Pino Toscano (3): ext2: add ext2fs_chmod and ext2fs_chown chroot: factor out file copy code Add --include-packagelist src/build.ml | 42 +++++++++++++++++++++++++------ src/chroot.ml | 29

No material changes are made. --- Makefile | 10 +- convert.c => convert/convert.c | 803 +--------------------------------------- convert/convert.h | 76 ++++ convert/ext2.c | 791 +++++++++++++++++++++++++++++++++++++++ 4 files changed, 873 insertions(+), 807 deletions(-) rename convert.c => convert/convert.c (74%) create mode

Hello, This patch adds rollback support for the converter, the converter can roll back a conversion if the image file haven't been modified. In addition, I rearrange some codes in convert.c and add a few comments. Regards YZ --- diff -r 12138d4beeb0 convert.c --- a/convert.c Fri Jan 04 11:29:55 2008 -0500 +++ b/convert.c Mon Jan 07 23:35:25 2008 +0800 @@ -33,6 +33,7 @@ #include

Hello, There is a new feature ''uninitialized block groups'' in ext4. Block and inode bitmaps in uninitialized block groups are uninitialized. This confuses the converter. The fix is call ext2fs_new_inode for each block group at open time. It set up uninitialized block and inode bitmaps appropriately. This patch also contains some other minor fixes. Thank you, Signed-off-by: Yan

Turns out Japanese trains are good for coding! In supermin we have a bunch of code to create the libguestfs appliance. It creates it directly using libext2fs (part of e2fsprogs). We can use the same technique to create ext2 virtual disks in nbdkit, which is what this new plugin does. Why a new plugin instead of modifying the floppy plugin? See the 4/4 commit message for an explanation. The

Another interesting thing you can do with this plugin: https://rwmj.wordpress.com/2019/02/19/nbdkit-linuxdisk-plugin/ v2: - Fix inconsistent tab/space. - All 3 plugins now contain a block of text pointing to the other 2 plugins. - TMDIR -> TMPDIR - Unlink the temporary file and other cleanups along error paths. - fclose -> pclose, and check the return value for errors. -

Hello, Recently, I am coding a program about read and write control. And there are some questions confusing me. 1. In info libext2fs: Function: errcode_t ext2fs_get_blocks (ext2_filsys FS, ext2_ino_t INO, blk_t *BLOCKS) Returns an array of blocks corresponding to the direct, indirect, doubly indirect, and triply indirect blocks as stored in the inode structure. So I wrote some codes like

Use the right formatting placeholders, so it gives no warnings also on 32bit platforms. --- src/ext2fs-c.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/src/ext2fs-c.c b/src/ext2fs-c.c index e45980a..cb9282b 100644 --- a/src/ext2fs-c.c +++ b/src/ext2fs-c.c @@ -31,6 +31,7 @@ #include <limits.h> #include <errno.h> #include <assert.h> +#include

Hi, the two patches improve the way memory is handled in supermin, by cleanly exiting on memory allocation failures, and free'ing memory when not needed (to keep working and not run out of memory). Pino Toscano (2): Check for failures in memory allocations Free memory buffers when not used src/ext2fs-c.c | 13 +++++++++++-- src/init.c | 13 +++++++++++++ 2 files changed, 24

When using ext2file=exportname to pick the file to server from the client's export name, we do not want to leak the underlying plugin's export list. While touching this, take advantage of string lifetimes via nbdkit_strdup_intern and similar for less cleanup bookkeeping. Note that we don't actually implement a full .list_exports; doing that with NBD_OPT_LIST is likely prohibitive

This patch introduce extent buffer cache for every i-node. By this way, we can save the search time and reduce the lock contention of the root because we needn''t search the item from the root of b+ tree. Implementation: - add two pointers of extent buffer into btrfs_inode struct, one for nodes/leaves of fs/file tree, the other for nodes/leaves of the log tree. - add a variant to tell

Hello syslinux, Merry Christmas! These patches will make extlinux work with umounted ext2/3/4 filesystem, for example: $ extlinux -i /dev/sdXN or $ extlinux -i file_block Also it can work with something like: $ extlinux /dev/sdXN --reset-adv or $ extlinux file_block --reset-adv We don't use a new option (I planed to use "-d" but it is already in use), it will check whether the