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* Rename struct fs_driver_d to fs_driverSascha Hauer2023-01-101-1/+1
| | | | | | | | | Remove the meaningless '_d' suffix. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.barebox.org/20221214123512.189688-6-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Rename struct fs_device_d to fs_deviceSascha Hauer2023-01-103-7/+7
| | | | | | | | | Remove the meaningless '_d' suffix. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.barebox.org/20221214123512.189688-5-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Rename struct device_d to deviceSascha Hauer2023-01-102-7/+7
| | | | | | | | | | | | | The '_d' suffix was originally introduced in case we want to import Linux struct device as a separate struct into barebox. Over time it became clear that this won't happen, instead barebox struct device_d is basically the same as Linux struct device. Rename the struct name accordingly to make porting Linux code easier. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Reviewed-by: Marco Felsch <m.felsch@pengutronix.de> Link: https://lore.barebox.org/20221214123512.189688-3-s.hauer@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Revert "lib: zstd: sync with Linux"Sascha Hauer2022-09-301-2/+2
| | | | | | | | | | | | | | | | | This was part of a larger series that made it possible to use other compression algos than LZO for device tree and to use zstd more widely for barebox and kernel compression. The latter zstd-related parts needed rework and were not merged, but the zstd update was applied. It broken in turn the UBIFS zstd support. As we get nothing out of the update without the not applied commits that need rework anyway, revert this commit. This reverts commit b4a9782d4f56333e897dccc35c2c27e2605f6b93. Reported-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220929102537.1767458-1-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* lib: zstd: sync with LinuxAhmad Fatoum2022-08-081-2/+2
| | | | | | | | | Import the Linux v5.18.3 state of the zstd decompression code. The compressor was omitted and error strings were disabled for PBL. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220713100922.1880282-3-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: add SPDX-License-Identifier for files without explicit licenseAhmad Fatoum2022-01-051-0/+2
| | | | | | | | | Record GPL-2.0-only as license for all files lacking an explicit license statement. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220103120539.1730644-12-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: add SPDX-License-Identifier for Kbuild/KconfigAhmad Fatoum2022-01-052-0/+4
| | | | | | | | | | | | | | | To verify only Kconfig/Makefile is touched: git show --numstat --format=oneline HEAD | grep -v 'Kconfig\|Makefile' will print only arch/powerpc/Kbuild. To verify nothing unexpected is added: git show -U0 | grep '^-[^-]\|^+[^+]' | sort -u Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20220103120539.1730644-3-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* include: add dedicated header for printf/printkAhmad Fatoum2021-11-011-1/+1
| | | | | | | | | | | | Including <stdio.h> for printf is a bit problematic, because it pulls in other headers for <console.h>, which includes quite a few more headers as well. To make it easier to share code between barebox and host tools make <printk.h> the new minimal header for printf and move the extra logging stuff into <linux/printk.h>. Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Link: https://lore.barebox.org/20211030141739.2207431-3-a.fatoum@pengutronix.de Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: squashfs: remove dead stores for xattr_idAhmad Fatoum2020-10-021-6/+0
| | | | | | | | | barebox doesn't do extended attributes in SquashFS. Remove the left-over xattr_id that's never read. Reported-by: clang-analyzer-10 Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: Use iget_locked() rather than squashfs specific functionSascha Hauer2020-08-202-18/+1
| | | | | | | | | | | | Use iget_locked() to let the core allocate the inode. This properly initializes all fields in the new inode, especially it adds the new inode to the list of all inodes for the filesystem. This prevents a NULL pointer derefence when iput() removes the inode from that list. This fixes squashfs support which is broken since 43902e5763 ("fs: free inodes we no longer need") Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: squashfs: Do not free root inodeSascha Hauer2020-08-201-1/+0
| | | | | | | With inode reference counting in place the core will free the root inode, so do not free it in the squashfs code. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: squashfs: set s_op in timeSascha Hauer2020-08-201-2/+1
| | | | | | | When calling squashfs_mount() s_op needs to be set already, otherwise calling alloc_inode() yields in a NULL pointer derefence. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: Add destroy_inode callbacks to filesystemsSascha Hauer2020-07-051-1/+9
| | | | | | | | | | | Several filesystems rely on the default function which frees the struct inode * rather than the filesystem specific inode which the inode is embedded in. This works because the inode is the first element in the filesystem specific inode. Let's not depend on this behaviour and for clarity add the destroy_inode callbacks to all filesystems. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: squashfs: Remove unused functionSascha Hauer2019-03-181-108/+0
| | | | | | squashfs_lookup_next() isn't used in the tree. Remove it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: Drop trivial .lseek() implementaitons in FS driversAndrey Smirnov2019-01-291-6/+0
| | | | | | | | | | | | | | | There are no FS drivers that do not implement .lseek callback in the codebase, so there doesn't seem to exist a use-case where lseek() would return -ENOSYS due to fsdrv->lseek being NULL. At the same time a large number of FS drivers implement only the most basic "always succeeds" custom .lseek() hook. Change the code of lseek() to treat absense of .lseek() to mean that no special actions needs to be taken by FS driver and seek is always successful and drop all of the trivial .lseek() implementations. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: Update FILE position in lseek()Andrey Smirnov2019-01-291-2/+0
| | | | | | | | | | Instead on relying on driver callbacks to update 'pos' in FILE, do it as a part of lseek() code. This allows us to drop a bit of repeating code as well as making lseek() implementation consistent with write() and read(). Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: squashfs: Switch to dentry cache implementationSascha Hauer2018-07-139-177/+365
| | | | | | While at it implement symlink support. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: dentry cache implementationSascha Hauer2018-07-112-9/+1
| | | | | | | | | | | | | | | | | | | | | | | This adds the Linux dentry cache implementation to barebox. Until now every filesystem driver resolves the full path to a file for itself. This leads to code duplication and is error prone since resolving paths is a complicated task. Also it can narrow down the lookup performance since barebox only knows ASCII paths and has no way of caching lookups. With this patch we get the Linux dcache implementation. The path resolving code from fs/namei.c is nearly taken as-is, minus the RCU and locking code. Dcaching is made simple as of now: We simply cache everything and never release any dentries. Although we do reference counting for inodes and dentries it is effectively not used yet. We never free anything until a fs is unmounted in which case we free everything no matter if references are taken or not. This patch also contains a wrapper in fs/legacy.c to support filesystems with the old API. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* squashfs: Add zstd supportPhilipp Zabel2018-02-056-0/+169
| | | | | | | | | | Based on kernel commit 87bf54bb43dd ("squashfs: Add zstd support"). Creating zstd compressed squashfs images is supported by squashfs-tools newer than commit e38956b92f73 ("squashfs-tools: Add zstd support"). Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: squashfs: fix "no previous prototype for 'squashfs_set_rootarg'" warningAntony Pavlov2017-04-101-1/+2
| | | | | | | | | | | The patch fixes this compiler's warning: fs/squashfs/squashfs.c:115:6: warning: no previous prototype for 'squashfs_set_rootarg' [-Wmissing-prototypes] void squashfs_set_rootarg(struct squashfs_priv *priv, struct fs_device_d *fsdev) ^ Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: squashfs: don't reference UBI symbols if UBI isn't compiled inLucas Stach2017-01-091-0/+3
| | | | | | | | There is no point in trying to append a UBI root option, if there is no UBI support in barebox. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: squashfs: Enable squashfs XZ support when XZ is enabledSascha Hauer2016-10-241-10/+7
| | | | | | | | XZ support itself is much more expensive than the squashfs XZ wrapper, so it makes sense to just compile XZ support into barebox when XZ support is available. No need to ask the user for it. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: squashfs: append linux rootarg for ubi volumeEnrico Jorns2016-10-241-0/+31
| | | | | | | | | | If squashfs runs from an ubi volume, append appropriate root kernel options. Note that ubiblock support is required in the kernel for that. Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Add filetype and detection for squashfs imagesEnrico Jorns2016-10-241-0/+1
| | | | | | | | | | | | | | | | | | | This adds `filetype_squashfs` to the list of known filetypes and adds a detection for squashfs files to file_detect_type(). This currently matches on the `hsqs` start sequence of an image file. Additionally, the newly introduced filetype is registered as the type of the squashfs_driver which allows, for example, to mount squashfs without the need to specify a type parameter. This changes enable booting a squashfs with the simple `boot` command pointing to the location (device) that holds the squashfs. Note that booting with blspec is limited as the current squashfs driver is not capable of handling symbolic links. Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: squashfs: port zlib compression support from kernelEnrico Jorns2016-10-243-0/+143
| | | | | | | | As this is the default compression method for squashfs, make this the default in kconfig selection, too Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: squashfs: port lz4 compression support from kernelEnrico Jorns2016-10-243-0/+151
| | | | | Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: squashfs: port lzo compression support from kernelEnrico Jorns2016-10-243-0/+140
| | | | | | | | | This ports lzo_wrapper from kernel code and adds some minimal adaptions to make squashfs lzo compression work in barebox. Signed-off-by: Enrico Jorns <ejo@pengutronix.de> Tested-by: Yegor Yefremov <yegorslists@googlemail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: squashfs: use correct format specifierLucas Stach2016-06-071-1/+1
| | | | | | | | | Fixes: fs/squashfs/inode.c: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long long int' Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: add support for SquashFS 4.0Yegor Yefremov2016-03-0222-0/+4133
The driver was imported from Linux 4.4. Current implementation supports only XZ decompressor. Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com> Tested-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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