X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=module%2Fzfs%2Fzfs_vnops.c;h=5765c9aa62983559898e6ad1182f04dd5001a93b;hb=4c837f0d931546e656b832caf11b8d4c2063d905;hp=300330231dda97cd0d1bd9da52e53b7760c2f2b7;hpb=5915791096e6b5be0bad7d2e3f683b4e7908cf19;p=zfs.git

diff --git a/module/zfs/zfs_vnops.c b/module/zfs/zfs_vnops.c
index 3003302..5765c9a 100644
--- a/module/zfs/zfs_vnops.c
+++ b/module/zfs/zfs_vnops.c
@@ -3790,7 +3790,8 @@ zfs_putpage(struct inode *ip, struct page *pp, struct writeback_control *wbc)
 	zfs_sb_t	*zsb = ITOZSB(ip);
 	loff_t		offset;
 	loff_t		pgoff;
-        unsigned int	pglen;
+	unsigned int	pglen;
+	rl_t		*rl;
 	dmu_tx_t	*tx;
 	caddr_t		va;
 	int		err = 0;
@@ -3799,6 +3800,8 @@ zfs_putpage(struct inode *ip, struct page *pp, struct writeback_control *wbc)
 	int		cnt = 0;
 	int		sync;
 
+	ZFS_ENTER(zsb);
+	ZFS_VERIFY_ZP(zp);
 
 	ASSERT(PageLocked(pp));
 
@@ -3810,6 +3813,7 @@ zfs_putpage(struct inode *ip, struct page *pp, struct writeback_control *wbc)
 	/* Page is beyond end of file */
 	if (pgoff >= offset) {
 		unlock_page(pp);
+		ZFS_EXIT(zsb);
 		return (0);
 	}
 
@@ -3832,6 +3836,7 @@ zfs_putpage(struct inode *ip, struct page *pp, struct writeback_control *wbc)
 	set_page_writeback(pp);
 	unlock_page(pp);
 
+	rl = zfs_range_lock(zp, pgoff, pglen, RL_WRITER);
 	tx = dmu_tx_create(zsb->z_os);
 
 	sync = ((zsb->z_os->os_sync == ZFS_SYNC_ALWAYS) ||
@@ -3848,7 +3853,18 @@ zfs_putpage(struct inode *ip, struct page *pp, struct writeback_control *wbc)
 		if (err == ERESTART)
 			dmu_tx_wait(tx);
 
+		/* Will call all registered commit callbacks */
 		dmu_tx_abort(tx);
+
+		/*
+		 * For the synchronous case the commit callback must be
+		 * explicitly called because there is no registered callback.
+		 */
+		if (sync)
+			zfs_putpage_commit_cb(pp, ECANCELED);
+
+		zfs_range_unlock(rl);
+		ZFS_EXIT(zsb);
 		return (err);
 	}
 
@@ -3864,6 +3880,7 @@ zfs_putpage(struct inode *ip, struct page *pp, struct writeback_control *wbc)
 	zfs_log_write(zsb->z_log, tx, TX_WRITE, zp, pgoff, pglen, 0);
 
 	dmu_tx_commit(tx);
+	zfs_range_unlock(rl);
 	ASSERT3S(err, ==, 0);
 
 	if (sync) {
@@ -3871,6 +3888,7 @@ zfs_putpage(struct inode *ip, struct page *pp, struct writeback_control *wbc)
 		zfs_putpage_commit_cb(pp, err);
 	}
 
+	ZFS_EXIT(zsb);
 	return (err);
 }