Hi Aleksei, Thank you for the patch! Yet something to improve: [auto build test ERROR on linus/master] [also build test ERROR on v4.17-rc2 next-20180424] [cannot apply to dgc-xfs/for-next] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Aleksei-Besogonov/fs-Add-iomap_swap_activate/20180423-061348 config: x86_64-randconfig-s2-04260250 (attached as .config) compiler: gcc-6 (Debian 6.4.0-9) 6.4.0 20171026 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): fs/iomap.c: In function 'iomap_swap_map': >> fs/iomap.c:1130:8: error: implicit declaration of function 'add_swap_extent' [-Werror=implicit-function-declaration] ret = add_swap_extent(ctx->sis, ctx->page_no, num_pages, disk_pos); ^~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/add_swap_extent +1130 fs/iomap.c 1100 1101 static loff_t 1102 iomap_swap_map(struct inode *inode, loff_t pos, loff_t length, 1103 void *data, struct iomap *iomap) 1104 { 1105 struct iomap_swap_walker_context *ctx = data; 1106 unsigned int blocks_per_page = PAGE_SIZE >> inode->i_blkbits; 1107 u64 num_pages; 1108 u64 aligned_address; 1109 sector_t disk_pos; 1110 loff_t eff_length; 1111 loff_t ret; 1112 1113 /* 1114 * Swap extents need to be PAGE_SIZE aligned on the disk 1115 */ 1116 aligned_address = ALIGN(iomap->addr, PAGE_SIZE); 1117 eff_length = length - (aligned_address - iomap->addr); 1118 BUG_ON(eff_length > length); 1119 disk_pos = aligned_address >> inode->i_blkbits; 1120 1121 if (eff_length < 0) 1122 return length; /* Continue probing */ 1123 1124 num_pages = eff_length / PAGE_SIZE; 1125 1126 /* Can't add blocks less than 1 page */ 1127 if (num_pages == 0) 1128 return length; /* Continue probing */ 1129 > 1130 ret = add_swap_extent(ctx->sis, ctx->page_no, num_pages, disk_pos); 1131 if (ret < 0) 1132 return ret; 1133 1134 ctx->nr_extents += ret; 1135 ctx->page_no += num_pages; 1136 *(ctx->span) += num_pages * blocks_per_page; 1137 1138 return length; /* continue probing */ 1139 } 1140 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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