diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c index cdce5f8c1cf..d35a27f4523 100644 --- a/fs/ocfs2/extent_map.c +++ b/fs/ocfs2/extent_map.c @@ -37,6 +37,7 @@ #include "extent_map.h" #include "inode.h" #include "super.h" +#include "symlink.h" #include "buffer_head_io.h" @@ -703,6 +704,12 @@ out: return ret; } +/* + * The ocfs2_fiemap_inline() may be a little bit misleading, since + * it not only handles the fiemap for inlined files, but also deals + * with the fast symlink, cause they have no difference for extent + * mapping per se. + */ static int ocfs2_fiemap_inline(struct inode *inode, struct buffer_head *di_bh, struct fiemap_extent_info *fieinfo, u64 map_start) @@ -715,11 +722,18 @@ static int ocfs2_fiemap_inline(struct inode *inode, struct buffer_head *di_bh, struct ocfs2_inode_info *oi = OCFS2_I(inode); di = (struct ocfs2_dinode *)di_bh->b_data; - id_count = le16_to_cpu(di->id2.i_data.id_count); + if (ocfs2_inode_is_fast_symlink(inode)) + id_count = ocfs2_fast_symlink_chars(inode->i_sb); + else + id_count = le16_to_cpu(di->id2.i_data.id_count); if (map_start < id_count) { phys = oi->ip_blkno << inode->i_sb->s_blocksize_bits; - phys += offsetof(struct ocfs2_dinode, id2.i_data.id_data); + if (ocfs2_inode_is_fast_symlink(inode)) + phys += offsetof(struct ocfs2_dinode, id2.i_symlink); + else + phys += offsetof(struct ocfs2_dinode, + id2.i_data.id_data); ret = fiemap_fill_next_extent(fieinfo, 0, phys, id_count, flags); @@ -756,9 +770,10 @@ int ocfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, down_read(&OCFS2_I(inode)->ip_alloc_sem); /* - * Handle inline-data separately. + * Handle inline-data and fast symlink separately. */ - if (OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) { + if ((OCFS2_I(inode)->ip_dyn_features & OCFS2_INLINE_DATA_FL) || + ocfs2_inode_is_fast_symlink(inode)) { ret = ocfs2_fiemap_inline(inode, di_bh, fieinfo, map_start); goto out_unlock; } diff --git a/fs/ocfs2/symlink.c b/fs/ocfs2/symlink.c index e3421030a69..49b133ccbf1 100644 --- a/fs/ocfs2/symlink.c +++ b/fs/ocfs2/symlink.c @@ -163,6 +163,7 @@ const struct inode_operations ocfs2_symlink_inode_operations = { .getxattr = generic_getxattr, .listxattr = ocfs2_listxattr, .removexattr = generic_removexattr, + .fiemap = ocfs2_fiemap, }; const struct inode_operations ocfs2_fast_symlink_inode_operations = { .readlink = ocfs2_readlink, @@ -174,4 +175,5 @@ const struct inode_operations ocfs2_fast_symlink_inode_operations = { .getxattr = generic_getxattr, .listxattr = ocfs2_listxattr, .removexattr = generic_removexattr, + .fiemap = ocfs2_fiemap, };