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* treewide: Add SPDX license identifier for missed filesThomas Gleixner2019-05-211-0/+1
| | | | | | | | | | | | | | | | | Add SPDX license identifiers to all files which: - Have no license information of any form - Have EXPORT_.*_SYMBOL_GPL inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* block: remove CONFIG_LBDAFChristoph Hellwig2019-04-061-8/+7
| | | | | | | | | | | | | | | | Currently support for 64-bit sector_t and blkcnt_t is optional on 32-bit architectures. These types are required to support block device and/or file sizes larger than 2 TiB, and have generally defaulted to on for a long time. Enabling the option only increases the i386 tinyconfig size by 145 bytes, and many data structures already always use 64-bit values for their in-core and on-disk data structures anyway, so there should not be a large change in dynamic memory usage either. Dropping this option removes a somewhat weird non-default config that has cause various bugs or compiler warnings when actually used. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* fs: fix comment for 'CONFIG_LBADF'Paul Bolle2014-08-261-1/+1
| | | | | Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* fs: reduce the use of module.h wherever possiblePaul Gortmaker2012-02-281-1/+1
| | | | | | | | | | For files only using THIS_MODULE and/or EXPORT_SYMBOL, map them onto including export.h -- or if the file isn't even using those, then just delete the include. Fix up any implicit include dependencies that were being masked by module.h along the way. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
* filesystems: add set_nlink()Miklos Szeredi2011-11-021-1/+1
| | | | | | | | | Replace remaining direct i_nlink updates with a new set_nlink() updater function. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
* mm: a few small updates for radix-swapHugh Dickins2011-08-031-4/+1
| | | | | | | | | | | | | | | | | | Remove PageSwapBacked (!page_is_file_cache) cases from add_to_page_cache_locked() and add_to_page_cache_lru(): those pages now go through shmem_add_to_page_cache(). Remove a comment on maximum tmpfs size from fsstack_copy_inode_size(), and add a comment on swap entries to invalidate_mapping_pages(). And mincore_page() uses find_get_page() on what might be shmem or a tmpfs file: allow for a radix_tree_exceptional_entry(), and proceed to find_get_page() on swapper_space if so (oh, swapper_space needs #ifdef). Signed-off-by: Hugh Dickins <hughd@google.com> Acked-by: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* VFS/fsstack: handle 32-bit smp + preempt + large files in ↵Erez Zadok2009-12-171-3/+51
| | | | | | | | | | | | fsstack_copy_inode_size Copy the inode size and blocks from one inode to another correctly on 32-bit systems with CONFIG_SMP, CONFIG_PREEMPT, or CONFIG_LBDAF. Use proper inode spinlocks only when i_size/i_blocks cannot fit in one 32-bit word. Signed-off-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fsstack/ecryptfs: remove unused get_nlinks param to fsstack_copy_attr_allErez Zadok2009-12-171-14/+3
| | | | | | | | | | This get_nlinks parameter was never used by the only mainline user, ecryptfs; and it has never been used by unionfs or wrapfs either. Acked-by: Dustin Kirkland <kirkland@canonical.com> Acked-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* [PATCH] fs/stack.c: Copy i_nlink after all other attributes are copiedErez Zadok2007-02-191-5/+9
| | | | | | | | | A user-specified get_nlinks may depend on other inode attributes. Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu> Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] fsstack: Remove inode copyMichael Halcrow2006-12-221-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Trevor found a file size problem in eCryptfs in recent kernels, and he tracked it down to an fsstack change. This was the eCryptfs copy_attr_all: > -void ecryptfs_copy_attr_all(struct inode *dest, const struct inode *src) > -{ > - dest->i_mode = src->i_mode; > - dest->i_nlink = src->i_nlink; > - dest->i_uid = src->i_uid; > - dest->i_gid = src->i_gid; > - dest->i_rdev = src->i_rdev; > - dest->i_atime = src->i_atime; > - dest->i_mtime = src->i_mtime; > - dest->i_ctime = src->i_ctime; > - dest->i_blkbits = src->i_blkbits; > - dest->i_flags = src->i_flags; > -} This is the fsstack copy_attr_all: > +void fsstack_copy_attr_all(struct inode *dest, const struct inode *src, > + int (*get_nlinks)(struct inode *)) > +{ > + if (!get_nlinks) > + dest->i_nlink = src->i_nlink; > + else > + dest->i_nlink = (*get_nlinks)(dest); > + > + dest->i_mode = src->i_mode; > + dest->i_uid = src->i_uid; > + dest->i_gid = src->i_gid; > + dest->i_rdev = src->i_rdev; > + dest->i_atime = src->i_atime; > + dest->i_mtime = src->i_mtime; > + dest->i_ctime = src->i_ctime; > + dest->i_blkbits = src->i_blkbits; > + dest->i_flags = src->i_flags; > + > + fsstack_copy_inode_size(dest, src); > +} The addition of copy_inode_size breaks eCryptfs, since eCryptfs needs to interpolate the file sizes (eCryptfs has extra space in the lower file for the header). The setting of the upper inode size occurs elsewhere in eCryptfs, and the new copy_attr_all now undoes what eCryptfs was doing right beforehand. I see three ways of going forward from here. (1) Something like this patch needs to go in (assuming it jives with Unionfs), (2) we need to make a change to the fsstack API for more fine-grained control over copying attributes (e.g., by also including a callback function for calculating the right file size, which will require some more work on both eCryptfs and Unionfs), or (3) the fsstack patch on eCryptfs (commit 0cc72dc7f050188d8d7344b1dd688cbc68d3cd30 made on Fri Dec 8 02:36:31 2006 -0800) needs to be yanked in 2.6.20. I think the simplest solution, from eCryptfs' perspective, is to just remove the inode size copy. Remove inode size copy in general fsstack attr copy code. Stacked filesystems may need to interpolate the inode size, since the file size in the lower file may be different than the file size in the stacked layer. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Acked-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fsstack: Introduce fsstack_copy_{attr,inode}_*Josef "Jeff" Sipek2006-12-081-0/+40
Introduce several fsstack_copy_* functions which allow stackable filesystems (such as eCryptfs and Unionfs) to easily copy over (currently only) inode attributes. This prevents code duplication and allows for code reuse. [akpm@osdl.org: Remove unneeded wrapper] [bunk@stusta.de: fs/stack.c should #include <linux/fs_stack.h>] Signed-off-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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