diff options
| -rw-r--r-- | fs/gfs2/glops.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c index e4c585f16ddd..007cd59d0e47 100644 --- a/fs/gfs2/glops.c +++ b/fs/gfs2/glops.c @@ -193,7 +193,7 @@ static int rgrp_go_sync(struct gfs2_glock *gl) struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl); int error; - if (!test_and_clear_bit(GLF_DIRTY, &gl->gl_flags)) + if (!rgd || !test_and_clear_bit(GLF_DIRTY, &gl->gl_flags)) return 0; GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_EXCLUSIVE); @@ -222,9 +222,12 @@ static void rgrp_go_inval(struct gfs2_glock *gl, int flags) struct address_space *mapping = &sdp->sd_aspace; struct gfs2_rgrpd *rgd = gfs2_glock2rgrp(gl); const unsigned bsize = sdp->sd_sb.sb_bsize; - loff_t start = (rgd->rd_addr * bsize) & PAGE_MASK; - loff_t end = PAGE_ALIGN((rgd->rd_addr + rgd->rd_length) * bsize) - 1; + loff_t start, end; + if (!rgd) + return; + start = (rgd->rd_addr * bsize) & PAGE_MASK; + end = PAGE_ALIGN((rgd->rd_addr + rgd->rd_length) * bsize) - 1; gfs2_rgrp_brelse(rgd); WARN_ON_ONCE(!(flags & DIO_METADATA)); truncate_inode_pages_range(mapping, start, end); |