linux/fs/xfs/xfs_pnfs.h

#ifndef _XFS_PNFS_H
#define _XFS_PNFS_H 1

#ifdef CONFIG_EXPORTFS_BLOCK_OPS
int xfs_fs_get_uuid(struct super_block *sb, u8 *buf, u32 *len, u64 *offset);
int xfs_fs_map_blocks(struct inode *inode, loff_t offset, u64 length,
		struct iomap *iomap, bool write, u32 *device_generation);
int xfs_fs_commit_blocks(struct inode *inode, struct iomap *maps, int nr_maps,
		struct iattr *iattr);

int xfs_break_layouts(struct inode *inode, uint *iolock, bool with_imutex);
#else
static inline int
xfs_break_layouts(struct inode *inode, uint *iolock, bool with_imutex)
{
	return 0;
}
#endif /* CONFIG_EXPORTFS_BLOCK_OPS */
#endif /* _XFS_PNFS_H */
xfs: implement pNFS export operations Add operations to export pNFS block layouts from an XFS filesystem. See the previous commit adding the operations for an explanation of them. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com> 2015-02-16 00:49:23 +00:00			`#ifndef _XFS_PNFS_H`
			`#define _XFS_PNFS_H 1`

xfs: abstract block export operations from nfsd layouts Instead of creeping pnfs layout configuration into filesystems, move the definition of block-based export operations under a more abstract configuration. Signed-off-by: Benjamin Coddington <bcodding@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Dave Chinner <david@fromorbit.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com> 2016-07-08 13:53:20 +00:00			`#ifdef CONFIG_EXPORTFS_BLOCK_OPS`
xfs: implement pNFS export operations Add operations to export pNFS block layouts from an XFS filesystem. See the previous commit adding the operations for an explanation of them. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com> 2015-02-16 00:49:23 +00:00			`int xfs_fs_get_uuid(struct super_block sb, u8 buf, u32 len, u64 offset);`
			`int xfs_fs_map_blocks(struct inode *inode, loff_t offset, u64 length,`
			`struct iomap iomap, bool write, u32 device_generation);`
			`int xfs_fs_commit_blocks(struct inode inode, struct iomap maps, int nr_maps,`
			`struct iattr *iattr);`
xfs: recall pNFS layouts on conflicting access Recall all outstanding pNFS layouts and truncates, writes and similar extent list modifying operations. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com> 2015-02-16 00:59:50 +00:00
xfs: unlock i_mutex in xfs_break_layouts We want to drop all I/O path locks when recalling layouts, and that includes i_mutex for the write path. Without this we get stuck processe when recalls take too long. [dchinner: fix build with !CONFIG_PNFS] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com> 2015-04-13 01:38:29 +00:00			`int xfs_break_layouts(struct inode inode, uint iolock, bool with_imutex);`
xfs: recall pNFS layouts on conflicting access Recall all outstanding pNFS layouts and truncates, writes and similar extent list modifying operations. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com> 2015-02-16 00:59:50 +00:00			`#else`
xfs: unlock i_mutex in xfs_break_layouts We want to drop all I/O path locks when recalling layouts, and that includes i_mutex for the write path. Without this we get stuck processe when recalls take too long. [dchinner: fix build with !CONFIG_PNFS] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com> 2015-04-13 01:38:29 +00:00			`static inline int`
			`xfs_break_layouts(struct inode inode, uint iolock, bool with_imutex)`
xfs: recall pNFS layouts on conflicting access Recall all outstanding pNFS layouts and truncates, writes and similar extent list modifying operations. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com> 2015-02-16 00:59:50 +00:00			`{`
			`return 0;`
			`}`
xfs: abstract block export operations from nfsd layouts Instead of creeping pnfs layout configuration into filesystems, move the definition of block-based export operations under a more abstract configuration. Signed-off-by: Benjamin Coddington <bcodding@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Dave Chinner <david@fromorbit.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com> 2016-07-08 13:53:20 +00:00			`#endif /* CONFIG_EXPORTFS_BLOCK_OPS */`
xfs: implement pNFS export operations Add operations to export pNFS block layouts from an XFS filesystem. See the previous commit adding the operations for an explanation of them. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com> 2015-02-16 00:49:23 +00:00			`#endif /* _XFS_PNFS_H */`