diff options
| -rw-r--r-- | fs/gfs2/glock.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c index c070ede531c5..6618c1190252 100644 --- a/fs/gfs2/glock.c +++ b/fs/gfs2/glock.c @@ -20,6 +20,7 @@ #include <linux/list.h> #include <linux/lm_interface.h> #include <linux/wait.h> +#include <linux/rwsem.h> #include <asm/uaccess.h> #include "gfs2.h" @@ -45,6 +46,7 @@ static int dump_glock(struct gfs2_glock *gl); static int dump_inode(struct gfs2_inode *ip); static void gfs2_glock_xmote_th(struct gfs2_holder *gh); static void gfs2_glock_drop_th(struct gfs2_glock *gl); +static DECLARE_RWSEM(gfs2_umount_flush_sem); #define GFS2_GL_HASH_SHIFT 15 #define GFS2_GL_HASH_SIZE (1 << GFS2_GL_HASH_SHIFT) @@ -1578,12 +1580,14 @@ void gfs2_glock_cb(void *cb_data, unsigned int type, void *data) struct lm_async_cb *async = data; struct gfs2_glock *gl; + down_read(&gfs2_umount_flush_sem); gl = gfs2_glock_find(sdp, &async->lc_name); if (gfs2_assert_warn(sdp, gl)) return; if (!gfs2_assert_warn(sdp, gl->gl_req_bh)) gl->gl_req_bh(gl, async->lc_ret); gfs2_glock_put(gl); + up_read(&gfs2_umount_flush_sem); return; } @@ -1828,7 +1832,9 @@ void gfs2_gl_hash_clear(struct gfs2_sbd *sdp, int wait) t = jiffies; } + down_write(&gfs2_umount_flush_sem); invalidate_inodes(sdp->sd_vfs); + up_write(&gfs2_umount_flush_sem); msleep(10); } } |