From: Zhang Yi <yi.zhang@xxxxxxxxxx> On a realtime inode, __xfs_bunmapi() could convert the unaligned extra blocks to unwritten state, but it couldn't work as expected on truncate down since the reserved block is zero in xfs_setattr_size(), fix this by reserved XFS_IS_REALTIME_INODE blocks for realtime inode. Signed-off-by: Zhang Yi <yi.zhang@xxxxxxxxxx> --- fs/xfs/xfs_iops.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c index ec7b7bdf8825..c53de5e6ef66 100644 --- a/fs/xfs/xfs_iops.c +++ b/fs/xfs/xfs_iops.c @@ -17,6 +17,8 @@ #include "xfs_da_btree.h" #include "xfs_attr.h" #include "xfs_trans.h" +#include "xfs_trans_space.h" +#include "xfs_bmap_btree.h" #include "xfs_trace.h" #include "xfs_icache.h" #include "xfs_symlink.h" @@ -811,6 +813,7 @@ xfs_setattr_size( struct xfs_trans *tp; int error; uint lock_flags = 0; + uint resblks; bool did_zeroing = false; bool write_back = false; @@ -932,7 +935,9 @@ xfs_setattr_size( } } - error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp); + resblks = XFS_IS_REALTIME_INODE(ip) ? XFS_DIOSTRAT_SPACE_RES(mp, 0) : 0; + error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, resblks, + 0, 0, &tp); if (error) return error; -- 2.39.2
