diff options
Diffstat (limited to 'fs/xfs/xfs_icache.c')
| -rw-r--r-- | fs/xfs/xfs_icache.c | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c index 922a29032e37..af5748f5d927 100644 --- a/fs/xfs/xfs_icache.c +++ b/fs/xfs/xfs_icache.c @@ -22,6 +22,7 @@ #include "xfs_dquot_item.h" #include "xfs_dquot.h" #include "xfs_reflink.h" +#include "xfs_ialloc.h" #include <linux/iversion.h> @@ -508,10 +509,40 @@ xfs_iget_cache_miss( if (!ip) return -ENOMEM; - error = xfs_iread(mp, tp, ip, flags); + error = xfs_imap(mp, tp, ip->i_ino, &ip->i_imap, flags); if (error) goto out_destroy; + /* + * For version 5 superblocks, if we are initialising a new inode and we + * are not utilising the XFS_MOUNT_IKEEP inode cluster mode, we can + * simply build the new inode core with a random generation number. + * + * For version 4 (and older) superblocks, log recovery is dependent on + * the di_flushiter field being initialised from the current on-disk + * value and hence we must also read the inode off disk even when + * initializing new inodes. + */ + if (xfs_sb_version_has_v3inode(&mp->m_sb) && + (flags & XFS_IGET_CREATE) && !(mp->m_flags & XFS_MOUNT_IKEEP)) { + VFS_I(ip)->i_generation = prandom_u32(); + } else { + struct xfs_dinode *dip; + struct xfs_buf *bp; + + error = xfs_imap_to_bp(mp, tp, &ip->i_imap, &dip, &bp, 0); + if (error) + goto out_destroy; + + error = xfs_inode_from_disk(ip, dip); + if (!error) + xfs_buf_set_ref(bp, XFS_INO_REF); + xfs_trans_brelse(tp, bp); + + if (error) + goto out_destroy; + } + if (!xfs_inode_verify_forks(ip)) { error = -EFSCORRUPTED; goto out_destroy; |