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-rw-r--r--fs/gfs2/bmap.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 39080b2d6cf8..b6697333bb2b 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -1153,13 +1153,12 @@ static int gfs2_iomap_end(struct inode *inode, loff_t pos, loff_t length,
if (length != written && (iomap->flags & IOMAP_F_NEW)) {
/* Deallocate blocks that were just allocated. */
- loff_t blockmask = i_blocksize(inode) - 1;
- loff_t end = (pos + length) & ~blockmask;
+ loff_t hstart = round_up(pos + written, i_blocksize(inode));
+ loff_t hend = iomap->offset + iomap->length;
- pos = (pos + written + blockmask) & ~blockmask;
- if (pos < end) {
- truncate_pagecache_range(inode, pos, end - 1);
- punch_hole(ip, pos, end - pos);
+ if (hstart < hend) {
+ truncate_pagecache_range(inode, hstart, hend - 1);
+ punch_hole(ip, hstart, hend - hstart);
}
}