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* treewide: Use fallthrough pseudo-keywordGustavo A. R. Silva2020-08-231-6/+6
| | | | | | | | | | Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
* fs/adfs: newdir: split out directory commit from updateRussell King2020-01-201-13/+13
| | | | | | | | | | After changing a directory, we need to update the sequence numbers and calculate the new check byte before the directory is scheduled to be written back to the media. Since this needs to happen for any change to the directory, move this into a separate method. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/adfs: newdir: clean up adfs_f_update()Russell King2020-01-201-49/+24
| | | | | | | | | __adfs_dir_put() and adfs_dir_find_entry() are only called from adfs_f_update(), so move them into this function, removing some unnecessary entry copying by doing so. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/adfs: newdir: merge adfs_dir_read() into adfs_f_read()Russell King2020-01-201-26/+7
| | | | | | | | | adfs_dir_read() is only called from adfs_f_read(), so merge it into that function. As new directories are always 2048 bytes in size, (which we rely on elsewhere) we can consolidate some of the code. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/adfs: newdir: improve directory validationRussell King2020-01-201-0/+1
| | | | | | | | Check that the lastmask and reserved fields are all zero, as per the documentation. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/adfs: newdir: factor out directory format validationRussell King2020-01-201-28/+20
| | | | | | | | We have two locations where we validate the new directory format, so factor this out to a helper. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/adfs: dir: use pointers to access directory head/tailsRussell King2020-01-201-25/+17
| | | | | | | | | | Add and use pointers in the adfs_dir structure to access the directory head and tail structures, which will always be contiguous in a buffer. This allows us to avoid memcpy()ing the data in the new directory code, making it slightly more efficient. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/adfs: dir: add more efficient iterate() per-format methodRussell King2020-01-201-0/+18
| | | | | | | | | Rather than using setpos + getnext to iterate through the directory entries, pass iterate() down to the dir format code to populate the dirents. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/adfs: dir: add helper to mark directory buffers dirtyRussell King2020-01-201-4/+1
| | | | | | | | Provide a helper for marking directory buffers dirty so they get written back to disk. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/adfs: dir: add generic directory readingRussell King2020-01-201-20/+4
| | | | | | | | | Both directory formats code the mechanics of fetching the directory buffers using their own implementations. Consolidate these into one implementation. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/adfs: dir: add generic copy functionsRussell King2020-01-201-47/+9
| | | | | | | | | | | | | | Directories can span multiple buffers, and we currently open-code memcpy access to these buffers, including dealing with entries that are split across multiple buffers. Such code exists in both directory format implementations. Provide common functions to allow data to be copied from/to the directory buffers as if they were a contiguous set of buffers, and use them when accessing directories. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/adfs: dir: add common directory sync methodRussell King2020-01-201-17/+0
| | | | | | | | | | adfs_fplus_sync() can be used for both directory formats since we now have a common way to access the buffer heads, so move it into dir.c and appropriately rename it. Remove the directory-format specific implementations. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/adfs: dir: add common directory buffer release methodRussell King2020-01-201-24/+4
| | | | | | | | | | With the bhs pointer in place, we have no need for separate per-format free() methods, since a generic version will do. Provide a generic implementation, remove the format specific implementations and the method function pointer. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs/adfs: dir: add common dir object initialisationRussell King2020-01-201-3/+0
| | | | | | | | | Initialise the dir object before we pass it down to the directory format specific read handler. This allows us to get rid of the initialisation inside those handlers. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'work.adfs' of ↵Linus Torvalds2019-07-191-22/+16
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull adfs updates from Al Viro: "More ADFS patches from Russell King" * 'work.adfs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fs/adfs: add time stamp and file type helpers fs/adfs: super: limit idlen according to directory type fs/adfs: super: fix use-after-free bug fs/adfs: super: safely update options on remount fs/adfs: super: correct superblock flags fs/adfs: clean up indirect disc addresses and fragment IDs fs/adfs: clean up error message printing fs/adfs: use %pV for error messages fs/adfs: use format_version from disc_record fs/adfs: add helper to get filesystem size fs/adfs: add helper to get discrecord from map fs/adfs: correct disc record structure
| * fs/adfs: clean up indirect disc addresses and fragment IDsRussell King2019-06-261-21/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We use a variety of different names for the indirect disc address of the current object, use a variety of different types, and print it in a variety of different ways. Bring some consistency to this by naming it "indaddr", use u32 or __u32 as the type since it fits in 32-bits, and always print it with %06x (with no leading hex prefix.) When printing it was a directory identifer, use "dir %06x" otherwise use "object %06x". Do the same for fragment IDs and the parent indirect disc addresses. Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * fs/adfs: add helper to get discrecord from mapRussell King2019-06-261-1/+0
| | | | | | | | | | | | | | | | Add a helper to get the disc record from the map, rather than open coding this in adfs_fill_super(). Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500Thomas Gleixner2019-06-191-4/+1
|/ | | | | | | | | | | | | | | | | | | | | | | | | | Based on 2 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation # extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 4122 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Enrico Weigelt <info@metux.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190604081206.933168790@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* Merge tag 'for-rc-adfs' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds2019-06-061-32/+11
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull ADFS cleanups/fixes from Russell King: "As a result of some of Al Viro's great work, here are a few cleanups with fixes for adfs: - factor out filename comparison, so we can be sure that adfs_compare() (used for namei compare) and adfs_match() (used for lookup) have the same behaviour. - factor out filename lowering (which is not the same as tolower() which will lower top-bit-set characters) to ensure that we have the same behaviour when comparing filenames as when we hash them. - factor out the object fixups, so we are applying all fixups to directory objects in the same way, independent of the disk format. - factor out the object name fixup (into the previously factored out function) to ensure that filenames are appropriately translated - for example, adfs allows '/' in filenames, which being the Unix path separator, need to be translated to a different character, which is normally '.' (DOS 8.3 filenames represent the . as a / on adfs, so this is the expected reverse translation.) - remove filename truncation; Al asked about this and apparently the decision is to remove it. In any case, adfs's truncation was buggy, so this rids us of that bug by removing the truncation feature. - we now have only one location which adds the "filetype" suffix to the filename, so there's no point that code being out of line. - since we translate '/' into '.', an adfs filename of "/" or "//" would end up being translated to "." and ".." which have special meanings. In this case, change the first character to "^" to avoid these special directory names being abused" * tag 'for-rc-adfs' of git://git.armlinux.org.uk/~rmk/linux-arm: fs/adfs: fix filename fixup handling for "/" and "//" names fs/adfs: move append_filetype_suffix() into adfs_object_fixup() fs/adfs: remove truncated filename hashing fs/adfs: factor out filename fixup fs/adfs: factor out object fixups fs/adfs: factor out filename case lowering fs/adfs: factor out filename comparison
| * fs/adfs: factor out filename fixupRussell King2019-05-311-16/+10
| | | | | | | | | | | | | | | | Move the filename fixup to adfs_object_fixup() so we only have one implementation of this. Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| * fs/adfs: factor out object fixupsRussell King2019-05-311-16/+1
| | | | | | | | | | | | | | | | Factor out the directory object fixups, which parse the filetype and optionally apply the filetype suffix to the filename. Acked-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
* | adfs: mark expected switch fall-throughsGustavo A. R. Silva2019-04-081-0/+6
|/ | | | | | | | | | | | | In preparation to enabling -Wimplicit-fallthrough, mark switch cases where we are expecting to fall through. Warning level 3 was used: -Wimplicit-fallthrough=3 This patch is part of the ongoing efforts to enable -Wimplicit-fallthrough Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
* adfs: constify adfs_dir_ops structuresJulia Lawall2015-12-061-1/+1
| | | | | | | | | The adfs_dir_ops structures are never modified, so declare them as const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* adfs: add hexadecimal filetype suffix optionStuart Swales2011-03-221-3/+20
| | | | | | | | | | | | | | | | | | | | | | | ADFS (FileCore) storage complies with the RISC OS filetype specification (12 bits of file type information is stored in the file load address, rather than using a file extension). The existing driver largely ignores this information and does not present it to the end user. It is desirable that stored filetypes be made visible to the end user to facilitate a precise copy of data and metadata from a hard disc (or image thereof) into a RISC OS emulator (such as RPCEmu) or to a network share which can be accessed by real Acorn systems. This patch implements a per-mount filetype suffix option (use -o ftsuffix=1) to present any filetype as a ,xyz hexadecimal suffix on each file. This type suffix is compatible with that used by RISC OS systems that access network servers using NFS client software and by RPCemu's host filing system. Signed-off-by: Stuart Swales <stuart.swales.croftnuisk@gmail.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Cleanup of adfs headersAl Viro2009-06-171-8/+0
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* repair adfs ->write_inode(), switch to simple_fsync()Al Viro2009-06-111-0/+17
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* adfs: work around bogus sparse warningHarvey Harrison2008-04-291-2/+2
| | | | | | | | | fs/adfs/dir_f.c:126:4: warning: do-while statement is not a compound statement Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] adfs: fix filename handlingJames Bursa2007-01-051-1/+1
| | | | | | | | | | Fix filenames on adfs discs being terminated at the first character greater than 128 (adfs filenames are Latin 1). I saw this problem when using a loopback adfs image on a 2.6.17-rc5 x86_64 machine, and the patch fixed it there. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+460
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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