diff options
| -rw-r--r-- | drivers/staging/lustre/lustre/llite/file.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c index fb85a58db058..c5b721c9cffd 100644 --- a/drivers/staging/lustre/lustre/llite/file.c +++ b/drivers/staging/lustre/lustre/llite/file.c @@ -2628,6 +2628,38 @@ int ll_getattr(struct vfsmount *mnt, struct dentry *de, struct kstat *stat) return ll_getattr_it(mnt, de, &it, stat); } +int ll_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, + __u64 start, __u64 len) +{ + int rc; + size_t num_bytes; + struct ll_user_fiemap *fiemap; + unsigned int extent_count = fieinfo->fi_extents_max; + + num_bytes = sizeof(*fiemap) + (extent_count * + sizeof(struct ll_fiemap_extent)); + OBD_ALLOC_LARGE(fiemap, num_bytes); + + if (fiemap == NULL) + return -ENOMEM; + + fiemap->fm_flags = fieinfo->fi_flags; + fiemap->fm_extent_count = fieinfo->fi_extents_max; + fiemap->fm_start = start; + fiemap->fm_length = len; + memcpy(&fiemap->fm_extents[0], fieinfo->fi_extents_start, + sizeof(struct ll_fiemap_extent)); + + rc = ll_do_fiemap(inode, fiemap, num_bytes); + + fieinfo->fi_flags = fiemap->fm_flags; + fieinfo->fi_extents_mapped = fiemap->fm_mapped_extents; + memcpy(fieinfo->fi_extents_start, &fiemap->fm_extents[0], + fiemap->fm_mapped_extents * sizeof(struct ll_fiemap_extent)); + + OBD_FREE_LARGE(fiemap, num_bytes); + return rc; +} struct posix_acl * ll_get_acl(struct inode *inode, int type) { @@ -2740,6 +2772,7 @@ struct inode_operations ll_file_inode_operations = { .getxattr = ll_getxattr, .listxattr = ll_listxattr, .removexattr = ll_removexattr, + .fiemap = ll_fiemap, .get_acl = ll_get_acl, }; |