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* fs: Replace CURRENT_TIME_SEC with current_time() for inode timestampsDeepa Dinamani2016-09-271-3/+3
| | | | | | | | | | | | | | | | | | CURRENT_TIME_SEC is not y2038 safe. current_time() will be transitioned to use 64 bit time along with vfs in a separate patch. There is no plan to transistion CURRENT_TIME_SEC to use y2038 safe time interfaces. current_time() will also be extended to use superblock range checking parameters when range checking is introduced. This works because alloc_super() fills in the the s_time_gran in super block to NSEC_PER_SEC. Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> Acked-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* simple local filesystems: switch to ->iterate_shared()Al Viro2016-05-021-1/+1
| | | | | | | no changes needed (XFS isn't simple, but it has the same parallelism in the interesting parts exercised from CXFS). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* mm, fs: get rid of PAGE_CACHE_* and page_cache_{get,release} macrosKirill A. Shutemov2016-04-041-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} macros were introduced *long* time ago with promise that one day it will be possible to implement page cache with bigger chunks than PAGE_SIZE. This promise never materialized. And unlikely will. We have many places where PAGE_CACHE_SIZE assumed to be equal to PAGE_SIZE. And it's constant source of confusion on whether PAGE_CACHE_* or PAGE_* constant should be used in a particular case, especially on the border between fs and mm. Global switching to PAGE_CACHE_SIZE != PAGE_SIZE would cause to much breakage to be doable. Let's stop pretending that pages in page cache are special. They are not. The changes are pretty straight-forward: - <foo> << (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>; - <foo> >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) -> <foo>; - PAGE_CACHE_{SIZE,SHIFT,MASK,ALIGN} -> PAGE_{SIZE,SHIFT,MASK,ALIGN}; - page_cache_get() -> get_page(); - page_cache_release() -> put_page(); This patch contains automated changes generated with coccinelle using script below. For some reason, coccinelle doesn't patch header files. I've called spatch for them manually. The only adjustment after coccinelle is revert of changes to PAGE_CAHCE_ALIGN definition: we are going to drop it later. There are few places in the code where coccinelle didn't reach. I'll fix them manually in a separate patch. Comments and documentation also will be addressed with the separate patch. virtual patch @@ expression E; @@ - E << (PAGE_CACHE_SHIFT - PAGE_SHIFT) + E @@ expression E; @@ - E >> (PAGE_CACHE_SHIFT - PAGE_SHIFT) + E @@ @@ - PAGE_CACHE_SHIFT + PAGE_SHIFT @@ @@ - PAGE_CACHE_SIZE + PAGE_SIZE @@ @@ - PAGE_CACHE_MASK + PAGE_MASK @@ expression E; @@ - PAGE_CACHE_ALIGN(E) + PAGE_ALIGN(E) @@ expression E; @@ - page_cache_get(E) + get_page(E) @@ expression E; @@ - page_cache_release(E) + put_page(E) Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Michal Hocko <mhocko@suse.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* pagemap.h: move dir_pages() over thereFabian Frederick2015-06-231-5/+0
| | | | | | | | That function was declared in a lot of filesystems to calculate directory pages. Signed-off-by: Fabian Frederick <fabf@skynet.be> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* VFS: normal filesystems (and lustre): d_inode() annotationsDavid Howells2015-04-151-2/+2
| | | | | | | that's the bulk of filesystem drivers dealing with inodes of their own Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* minix: bug widening a binary "not" operationDan Carpenter2013-06-291-1/+1
| | | | | | | | | | | "chunk_size" is an unsigned int and "pos" is an unsigned long. The "& ~(chunk_size-1)" operation clears the high 32 bits unintentionally. The ALIGN() macro does the correct thing. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* [readdir] simple local unixlike: switch to ->iterate()Al Viro2013-06-291-23/+19
| | | | | | ext2, ufs, minix, sysv Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* new helper: file_inode(file)Al Viro2013-02-221-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* minix: remove the second argument of k[un]map_atomic()Cong Wang2012-03-201-2/+2
| | | | Signed-off-by: Cong Wang <amwang@redhat.com>
* clean up write_begin usage for directories in pagecacheChristoph Hellwig2010-08-091-14/+7
| | | | | | | | | | | | | | | | | | | For filesystem that implement directories in pagecache we call block_write_begin with an already allocated page for this code, while the normal regular file write path uses the default block_write_begin behaviour. Get rid of the __foofs_write_begin helper and opencode the normal write_begin call in foofs_write_begin, while adding a new foofs_prepare_chunk helper for the directory code. The added benefit is that foofs_prepare_chunk has a much saner calling convention. Note that the interruptible flag passed into block_write_begin is always ignored if we already pass in a page (see next patch for details), and we never were doing truncations of exessive blocks for this case either so we can switch directly to block_write_begin_newtrunc. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Minix: Clean up left over labelAndrew Hendry2010-06-041-4/+0
| | | | | | | Remove a left over fail label. Signed-off-by: Andrew Hendry <andrew.hendry@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* remove detritus left by "mm: make read_cache_page synchronous"Al Viro2010-05-281-4/+1
| | | | | | | | | | | gets minix get_dir_page() in sync with its analogs; back in 2007 Nick has switched read_cache_page() and friends to sync behaviour (i.e. they wait for the page to get unlocked, check if it's uptodate and if it isn't return ERR_PTR(-EIO) instead) and removed the duplicate logics from the callers. In case of fs/minix/dir.c he'd removed only half of that... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* rename the generic fsync implementationsChristoph Hellwig2010-05-271-1/+1
| | | | | | | | | | | | | | | | We don't name our generic fsync implementations very well currently. The no-op implementation for in-memory filesystems currently is called simple_sync_file which doesn't make too much sense to start with, the the generic one for simple filesystems is called simple_fsync which can lead to some confusion. This patch renames the generic file fsync method to generic_file_fsync to match the other generic_file_* routines it is supposed to be used with, and the no-op implementation to noop_fsync to make it obvious what to expect. In addition add some documentation for both methods. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* V3 minixfs: add missing directory type checkingDoug Graham2009-09-231-4/+18
| | | | | | | | | | | | | | | | There are a few places in the Minix FS code where the "inode" field of a minix_dir_entry is used without checking first to see if the dirent is really a minix3_dir_entry. The inode number in a V1/V2 dirent is 16 bits, whereas that in a V3 dirent is 32 bits. Accessing it as a 16 bit field when it really should be accessed as a 32 bit field probably kinda sorta works on a little-endian machine, but leads to some rather odd behaviour on big-endian machines. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Doug Graham <dgraham@nortel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* get rid of BKL in fs/minixAl Viro2009-06-171-4/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* switch minix to simple_fsync()Al Viro2009-06-111-1/+1
| | | | | | | * get minix_write_inode() to honour the second argument * now we can use simple_fsync() for minixfs Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* minix: fix add link's wrong position calculationEvgeniy Dushistov2009-01-061-1/+1
| | | | | | | | | | | | Fix the add link method. The oosition in the directory was calculated in wrong way - it had the incorrect shift direction. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: <stable@kernel.org> [2.6.lots] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* minixfs: convert to new aopsNick Piggin2007-10-161-18/+31
| | | | | | | Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Andries Brouwer <Andries.Brouwer@cwi.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* mm: make read_cache_page synchronousNick Piggin2007-05-071-1/+0
| | | | | | | | | | | | | | | | Ensure pages are uptodate after returning from read_cache_page, which allows us to cut out most of the filesystem-internal PageUptodate calls. I didn't have a great look down the call chains, but this appears to fixes 7 possible use-before uptodate in hfs, 2 in hfsplus, 1 in jfs, a few in ecryptfs, 1 in jffs2, and a possible cleared data overwritten with readpage in block2mtd. All depending on whether the filler is async and/or can return with a !uptodate page. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] Minix V3 supportAndries Brouwer2007-02-121-51/+111
| | | | | | | | | | | | | | | | | This morning I needed to read a Minix V3 filesystem, but unfortunately my 2.6.19 did not support that, and neither did the downloaded 2.6.20rc4. Fortunately, google told me that Daniel Aragones had already done the work, patch found at http://www.terra.es/personal2/danarag/ Unfortunaly, looking at the patch was painful to my eyes, so I polished it a bit before applying. The resulting kernel boots, and reads the filesystem it needed to read. Signed-off-by: Daniel Aragones <danarag@gmail.com> Signed-off-by: Andries Brouwer <aeb@cwi.nl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] struct path: convert minixJosef Sipek2006-12-081-1/+1
| | | | | | Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] read_mapping_page for address spacePekka Enberg2006-06-231-2/+1
| | | | | | | | | | Add read_mapping_page() which is used for callers that pass mapping->a_ops->readpage as the filler for read_cache_page. This removes some duplication from filesystem code. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Make most file operations structs in fs/ constArjan van de Ven2006-03-281-1/+1
| | | | | | | | | | | | | | This is a conversion to make the various file_operations structs in fs/ const. Basically a regexp job, with a few manual fixups The goal is both to increase correctness (harder to accidentally write to shared datastructures) and reducing the false sharing of cachelines with things that get dirty in .data (while .rodata is nicely read only and thus cache clean) Signed-off-by: Arjan van de Ven <arjan@infradead.org> 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/+409
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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