if (tp == NULL) {
bp = xfs_buf_read_flags(target, blkno, len, flags | BUF_BUSY);
if (!bp)
- return XFS_ERROR(ENOMEM);
+ return (flags & XFS_BUF_TRYLOCK) ?
+ EAGAIN : XFS_ERROR(ENOMEM);
if ((bp != NULL) && (XFS_BUF_GETERROR(bp) != 0)) {
xfs_ioerror_alert("xfs_trans_read_buf", mp,
ASSERT(!XFS_BUF_ISASYNC(bp));
XFS_BUF_READ(bp);
xfsbdstrat(tp->t_mountp, bp);
- xfs_iowait(bp);
- if (XFS_BUF_GETERROR(bp) != 0) {
+ error = xfs_iowait(bp);
+ if (error) {
xfs_ioerror_alert("xfs_trans_read_buf", mp,
bp, blkno);
- error = XFS_BUF_GETERROR(bp);
xfs_buf_relse(bp);
/*
- * We can gracefully recover from most
- * read errors. Ones we can't are those
- * that happen after the transaction's
- * already dirty.
+ * We can gracefully recover from most read
+ * errors. Ones we can't are those that happen
+ * after the transaction's already dirty.
*/
if (tp->t_flags & XFS_TRANS_DIRTY)
xfs_force_shutdown(tp->t_mountp,