Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
xfs: switch to NOFS allocation under i_lock in xfs_readlink_bmap
xfs_readlink_bmap is called with i_lock held, but i_lock is taken in
reclaim context so all allocations under it must avoid recursions into
the filesystem.
Reported by the new reclaim context tracing in lockdep.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Felix Blyakher <felixb@sgi.com>
Signed-off-by: Felix Blyakher <felixb@sgi.com>
authored by Christoph Hellwig and committed by Felix Blyakher 7b02ecb3 10746e47
+3
-1
fs/xfs/xfs_vnodeops.c
+3
-1
fs/xfs/xfs_vnodeops.c
···
538
d = XFS_FSB_TO_DADDR(mp, mval[n].br_startblock);
539
byte_cnt = XFS_FSB_TO_B(mp, mval[n].br_blockcount);
540
541
+
bp = xfs_buf_read_flags(mp->m_ddev_targp, d, BTOBB(byte_cnt),
542
+
XBF_LOCK | XBF_MAPPED |
543
+
XBF_DONT_BLOCK);
544
error = XFS_BUF_GETERROR(bp);
545
if (error) {
546
xfs_ioerror_alert("xfs_readlink",