linux/fs/xfs/xfs_aops.h

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2005-2006 Silicon Graphics, Inc.
 * All Rights Reserved.
 */
#ifndef __XFS_AOPS_H__
#define __XFS_AOPS_H__

extern const struct address_space_operations xfs_address_space_operations;
extern const struct address_space_operations xfs_dax_aops;

int	xfs_setfilesize(struct xfs_inode *ip, xfs_off_t offset, size_t size);

#endif /* __XFS_AOPS_H__ */
xfs: convert to SPDX license tags Remove the verbose license text from XFS files and replace them with SPDX tags. This does not change the license of any of the code, merely refers to the common, up-to-date license files in LICENSES/ This change was mostly scripted. fs/xfs/Makefile and fs/xfs/libxfs/xfs_fs.h were modified by hand, the rest were detected and modified by the following command: for f in `git grep -l "GNU General" fs/xfs/` ; do echo $f cat $f \| awk -f hdr.awk > $f.new mv -f $f.new $f done And the hdr.awk script that did the modification (including detecting the difference between GPL-2.0 and GPL-2.0+ licenses) is as follows: $ cat hdr.awk BEGIN { hdr = 1.0 tag = "GPL-2.0" str = "" } /^ \* This program is free software/ { hdr = 2.0; next } /any later version./ { tag = "GPL-2.0+" next } /^ \\// { if (hdr > 0.0) { print "// SPDX-License-Identifier: " tag print str print $0 str="" hdr = 0.0 next } print $0 next } /^ \ / { if (hdr > 1.0) next if (hdr > 0.0) { if (str != "") str = str "\n" str = str $0 next } print $0 next } /^ \*/ { if (hdr > 0.0) next print $0 next } // { if (hdr > 0.0) { if (str != "") str = str "\n" str = str $0 next } print $0 } END { } $ Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> 2018-06-06 10:42:14 +08:00			`// SPDX-License-Identifier: GPL-2.0`
[XFS] Add in the new xfs_aops.h header file for I/O completion struct. SGI-PV: 934766 SGI-Modid: xfs-linux:xfs-kern:196857a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com> 2005-09-05 06:18:12 +08:00			`/*`
[XFS] Fix a typo in a header file comment. SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:26101a Signed-off-by: Nathan Scott <nathans@sgi.com> 2006-06-09 13:29:12 +08:00			`* Copyright (c) 2005-2006 Silicon Graphics, Inc.`
[XFS] Update license/copyright notices to match the prefered SGI boilerplate. SGI-PV: 913862 SGI-Modid: xfs-linux:xfs-kern:23903a Signed-off-by: Nathan Scott <nathans@sgi.com> 2005-11-02 11:58:39 +08:00			`* All Rights Reserved.`
[XFS] Add in the new xfs_aops.h header file for I/O completion struct. SGI-PV: 934766 SGI-Modid: xfs-linux:xfs-kern:196857a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com> 2005-09-05 06:18:12 +08:00			`*/`
			`#ifndef __XFS_AOPS_H__`
			`#define __XFS_AOPS_H__`

[PATCH] mark address_space_operations const Same as with already do with the file operations: keep them in .rodata and prevents people from doing runtime patching. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org> 2006-06-28 19:26:44 +08:00			`extern const struct address_space_operations xfs_address_space_operations;`
xfs, dax: introduce xfs_dax_aops In preparation for the dax implementation to start associating dax pages to inodes via page->mapping, we need to provide a 'struct address_space_operations' instance for dax. Otherwise, direct-I/O triggers incorrect page cache assumptions and warnings like the following: WARNING: CPU: 27 PID: 1783 at fs/xfs/xfs_aops.c:1468 xfs_vm_set_page_dirty+0xf3/0x1b0 [xfs] [..] CPU: 27 PID: 1783 Comm: dma-collision Tainted: G O 4.15.0-rc2+ #984 [..] Call Trace: set_page_dirty_lock+0x40/0x60 bio_set_pages_dirty+0x37/0x50 iomap_dio_actor+0x2b7/0x3b0 ? iomap_dio_zero+0x110/0x110 iomap_apply+0xa4/0x110 iomap_dio_rw+0x29e/0x3b0 ? iomap_dio_zero+0x110/0x110 ? xfs_file_dio_aio_read+0x7c/0x1a0 [xfs] xfs_file_dio_aio_read+0x7c/0x1a0 [xfs] xfs_file_read_iter+0xa0/0xc0 [xfs] __vfs_read+0xf9/0x170 vfs_read+0xa6/0x150 SyS_pread64+0x93/0xb0 entry_SYSCALL_64_fastpath+0x1f/0x96 ...where the default set_page_dirty() handler assumes that dirty state is being tracked in 'struct page' flags. Cc: Jeff Moyer <jmoyer@redhat.com> Cc: Matthew Wilcox <mawilcox@microsoft.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Suggested-by: Jan Kara <jack@suse.cz> Suggested-by: Dave Chinner <david@fromorbit.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Dan Williams <dan.j.williams@intel.com> 2018-03-08 07:26:44 +08:00			`extern const struct address_space_operations xfs_dax_aops;`
xfs: add DAX file operations support Add the initial support for DAX file operations to XFS. This includes the necessary block allocation and mmap page fault hooks for DAX to function. Note that there are changes to the splice interfaces to ensure that for DAX splice avoids direct page cache manipulations and instead takes the DAX IO paths for read/write operations. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com> 2015-06-04 07:18:53 +08:00
xfs: refactor xfs_setfilesize Rename the current function to __xfs_setfilesize and add a non-static wrapper that also takes care of creating the transaction. This new helper will be used by the new iomap-based DAX path. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com> 2016-09-19 09:26:41 +08:00			`int xfs_setfilesize(struct xfs_inode *ip, xfs_off_t offset, size_t size);`
xfs: direct calls in the direct I/O path We control both the callers and callees of ->direct_IO, so remove the indirect calls. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com> 2016-07-20 09:38:01 +08:00
[XFS] Fix a typo in a header file comment. SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:26101a Signed-off-by: Nathan Scott <nathans@sgi.com> 2006-06-09 13:29:12 +08:00			`#endif /* __XFS_AOPS_H__ */`