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authorChristoph Hellwig <hch@lst.de>2019-07-01 23:54:39 +0200
committerAndreas Gruenbacher <agruenba@redhat.com>2020-10-14 23:54:42 +0200
commit2164f9b9186962ffb7c687e18ec6f5255525f09d (patch)
treeebe2bffe90282875650ce1171bed81c229e447eb /fs/gfs2/bmap.h
parentee1e2c773e4f4ce2213f9d77cc703b669ca6fa3f (diff)
downloadlinux-2164f9b9186962ffb7c687e18ec6f5255525f09d.tar.bz2
gfs2: use iomap for buffered I/O in ordered and writeback mode
Switch to using the iomap readpage and writepage helpers for all I/O in the ordered and writeback modes, and thus eliminate using buffer_heads for I/O in these cases. The journaled data mode is left untouched. (Andreas Gruenbacher: In gfs2_unstuffer_page, switch from mark_buffer_dirty to set_page_dirty instead of accidentally leaving the page / buffer clean.) Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
Diffstat (limited to 'fs/gfs2/bmap.h')
-rw-r--r--fs/gfs2/bmap.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/gfs2/bmap.h b/fs/gfs2/bmap.h
index b88fd45ab79f..aed4632d47d3 100644
--- a/fs/gfs2/bmap.h
+++ b/fs/gfs2/bmap.h
@@ -44,6 +44,7 @@ static inline void gfs2_write_calc_reserv(const struct gfs2_inode *ip,
}
extern const struct iomap_ops gfs2_iomap_ops;
+extern const struct iomap_writeback_ops gfs2_writeback_ops;
extern int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page);
extern int gfs2_block_map(struct inode *inode, sector_t lblock,