From ba403ab43e896c57f32995ccba9a6bd6ec8dd1b9 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 5 Sep 2005 08:33:00 +1000 Subject: [XFS] Retry linux inode cacech lookup if we found a stale inode. This fixes crashes under high nfs load SGI-PV: 941429 SGI-Modid: xfs-linux:xfs-kern:197929a Signed-off-by: Christoph Hellwig Signed-off-by: Nathan Scott --- fs/xfs/xfs_iget.c | 28 ++++++++++++++++------------ 1 file changed, 16 insertions(+), 12 deletions(-) (limited to 'fs/xfs') diff --git a/fs/xfs/xfs_iget.c b/fs/xfs/xfs_iget.c index fa79691..0d9ae8f 100644 --- a/fs/xfs/xfs_iget.c +++ b/fs/xfs/xfs_iget.c @@ -30,6 +30,8 @@ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ */ +#include + #include "xfs.h" #include "xfs_macros.h" @@ -507,14 +509,13 @@ xfs_iget( XFS_STATS_INC(xs_ig_attempts); +retry: if ((inode = iget_locked(XFS_MTOVFS(mp)->vfs_super, ino))) { bhv_desc_t *bdp; xfs_inode_t *ip; - int newnode; vp = LINVFS_GET_VP(inode); if (inode->i_state & I_NEW) { -inode_allocate: vn_initialize(inode); error = xfs_iget_core(vp, mp, tp, ino, flags, lock_flags, ipp, bno); @@ -525,22 +526,25 @@ inode_allocate: iput(inode); } } else { - if (is_bad_inode(inode)) { + /* + * If the inode is not fully constructed due to + * filehandle mistmatches wait for the inode to go + * away and try again. + * + * iget_locked will call __wait_on_freeing_inode + * to wait for the inode to go away. + */ + if (is_bad_inode(inode) || + ((bdp = vn_bhv_lookup(VN_BHV_HEAD(vp), + &xfs_vnodeops)) == NULL)) { iput(inode); - return EIO; + delay(1); + goto retry; } - bdp = vn_bhv_lookup(VN_BHV_HEAD(vp), &xfs_vnodeops); - if (bdp == NULL) { - XFS_STATS_INC(xs_ig_dup); - goto inode_allocate; - } ip = XFS_BHVTOI(bdp); if (lock_flags != 0) xfs_ilock(ip, lock_flags); - newnode = (ip->i_d.di_mode == 0); - if (newnode) - xfs_iocore_inode_reinit(ip); XFS_STATS_INC(xs_ig_found); *ipp = ip; error = 0; -- cgit v1.1