diff options
Diffstat (limited to 'fs/xfs/linux-2.6/xfs_iops.c')
| -rw-r--r-- | fs/xfs/linux-2.6/xfs_iops.c | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/fs/xfs/linux-2.6/xfs_iops.c b/fs/xfs/linux-2.6/xfs_iops.c index e65a7937f3a4..44f0b2de153e 100644 --- a/fs/xfs/linux-2.6/xfs_iops.c +++ b/fs/xfs/linux-2.6/xfs_iops.c @@ -585,11 +585,20 @@ xfs_vn_fallocate( bf.l_len = len; xfs_ilock(ip, XFS_IOLOCK_EXCL); + + /* check the new inode size is valid before allocating */ + if (!(mode & FALLOC_FL_KEEP_SIZE) && + offset + len > i_size_read(inode)) { + new_size = offset + len; + error = inode_newsize_ok(inode, new_size); + if (error) + goto out_unlock; + } + error = -xfs_change_file_space(ip, XFS_IOC_RESVSP, &bf, 0, XFS_ATTR_NOLOCK); - if (!error && !(mode & FALLOC_FL_KEEP_SIZE) && - offset + len > i_size_read(inode)) - new_size = offset + len; + if (error) + goto out_unlock; /* Change file size if needed */ if (new_size) { @@ -600,6 +609,7 @@ xfs_vn_fallocate( error = -xfs_setattr(ip, &iattr, XFS_ATTR_NOLOCK); } +out_unlock: xfs_iunlock(ip, XFS_IOLOCK_EXCL); out_error: return error; @@ -673,7 +683,10 @@ xfs_vn_fiemap( bm.bmv_length = BTOBB(length); /* We add one because in getbmap world count includes the header */ - bm.bmv_count = fieinfo->fi_extents_max + 1; + bm.bmv_count = !fieinfo->fi_extents_max ? MAXEXTNUM : + fieinfo->fi_extents_max + 1; + bm.bmv_count = min_t(__s32, bm.bmv_count, + (PAGE_SIZE * 16 / sizeof(struct getbmapx))); bm.bmv_iflags = BMV_IF_PREALLOC; if (fieinfo->fi_flags & FIEMAP_FLAG_XATTR) bm.bmv_iflags |= BMV_IF_ATTRFORK; |