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iomap: move IOMAP_F_BOUNDARY to gfs2

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Just define a range of fs specific flags and use that in gfs2 instead of
exposing this internal flag globally.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-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>
This commit is contained in:
Christoph Hellwig 2018-06-01 09:03:07 -07:00 committed by Darrick J. Wong
parent 9ecac0ef22
commit 7ee66c03e4
2 changed files with 12 additions and 5 deletions
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8
fs/gfs2/bmap.c
View File

@ -683,6 +683,8 @@ static void gfs2_stuffed_iomap(struct inode *inode, struct iomap *iomap)
iomap->type = IOMAP_INLINE;
}
#define IOMAP_F_GFS2_BOUNDARY IOMAP_F_PRIVATE
/**
* gfs2_iomap_begin - Map blocks from an inode to disk blocks
* @inode: The inode
@ -774,7 +776,7 @@ int gfs2_iomap_begin(struct inode *inode, loff_t pos, loff_t length,
bh = mp.mp_bh[ip->i_height - 1];
len = gfs2_extent_length(bh->b_data, bh->b_size, ptr, lend - lblock, &eob);
if (eob)
iomap->flags |= IOMAP_F_BOUNDARY;
iomap->flags |= IOMAP_F_GFS2_BOUNDARY;
iomap->length = (u64)len << inode->i_blkbits;
out_release:
@ -846,12 +848,12 @@ int gfs2_block_map(struct inode *inode, sector_t lblock,
if (iomap.length > bh_map->b_size) {
iomap.length = bh_map->b_size;
iomap.flags &= ~IOMAP_F_BOUNDARY;
iomap.flags &= ~IOMAP_F_GFS2_BOUNDARY;
}
if (iomap.addr != IOMAP_NULL_ADDR)
map_bh(bh_map, inode->i_sb, iomap.addr >> inode->i_blkbits);
bh_map->b_size = iomap.length;
if (iomap.flags & IOMAP_F_BOUNDARY)
if (iomap.flags & IOMAP_F_GFS2_BOUNDARY)
set_buffer_boundary(bh_map);
if (iomap.flags & IOMAP_F_NEW)
set_buffer_new(bh_map);

9
include/linux/iomap.h
View File

@ -27,8 +27,7 @@ struct vm_fault;
* written data and requires fdatasync to commit them to persistent storage.
*/
#define IOMAP_F_NEW 0x01 /* blocks have been newly allocated */
#define IOMAP_F_BOUNDARY 0x02 /* mapping ends at metadata boundary */
#define IOMAP_F_DIRTY 0x04 /* uncommitted metadata */
#define IOMAP_F_DIRTY 0x02 /* uncommitted metadata */
/*
* Flags that only need to be reported for IOMAP_REPORT requests:
@ -36,6 +35,12 @@ struct vm_fault;
#define IOMAP_F_MERGED 0x10 /* contains multiple blocks/extents */
#define IOMAP_F_SHARED 0x20 /* block shared with another file */
/*
* Flags from 0x1000 up are for file system specific usage:
*/
#define IOMAP_F_PRIVATE 0x1000
/*
* Magic value for addr:
*/