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staging/lustre/llite: restore ll_fiemap

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It was removed by coan by mistake when first porting the code.

Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Peng Tao 2013-11-15 00:13:03 +08:00 committed by Greg Kroah-Hartman
parent e630a6bcf1
commit 89580e3792
1 changed files with 33 additions and 0 deletions
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33
drivers/staging/lustre/lustre/llite/file.c
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@ -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,
};