diff options
Diffstat (limited to 'block/raw-posix.c')
| -rw-r--r-- | block/raw-posix.c | 63 |
1 files changed, 4 insertions, 59 deletions
diff --git a/block/raw-posix.c b/block/raw-posix.c index 706d3c02b1..a29130ea42 100644 --- a/block/raw-posix.c +++ b/block/raw-posix.c @@ -60,9 +60,6 @@ #define FS_NOCOW_FL 0x00800000 /* Do not cow file */ #endif #endif -#ifdef CONFIG_FIEMAP -#include <linux/fiemap.h> -#endif #ifdef CONFIG_FALLOCATE_PUNCH_HOLE #include <linux/falloc.h> #endif @@ -151,9 +148,6 @@ typedef struct BDRVRawState { bool has_write_zeroes:1; bool discard_zeroes:1; bool needs_alignment; -#ifdef CONFIG_FIEMAP - bool skip_fiemap; -#endif } BDRVRawState; typedef struct BDRVRawReopenState { @@ -1481,52 +1475,6 @@ out: return result; } -static int try_fiemap(BlockDriverState *bs, off_t start, off_t *data, - off_t *hole, int nb_sectors) -{ -#ifdef CONFIG_FIEMAP - BDRVRawState *s = bs->opaque; - int ret = 0; - struct { - struct fiemap fm; - struct fiemap_extent fe; - } f; - - if (s->skip_fiemap) { - return -ENOTSUP; - } - - f.fm.fm_start = start; - f.fm.fm_length = (int64_t)nb_sectors * BDRV_SECTOR_SIZE; - f.fm.fm_flags = FIEMAP_FLAG_SYNC; - f.fm.fm_extent_count = 1; - f.fm.fm_reserved = 0; - if (ioctl(s->fd, FS_IOC_FIEMAP, &f) == -1) { - s->skip_fiemap = true; - return -errno; - } - - if (f.fm.fm_mapped_extents == 0) { - /* No extents found, data is beyond f.fm.fm_start + f.fm.fm_length. - * f.fm.fm_start + f.fm.fm_length must be clamped to the file size! - */ - off_t length = lseek(s->fd, 0, SEEK_END); - *hole = f.fm.fm_start; - *data = MIN(f.fm.fm_start + f.fm.fm_length, length); - } else { - *data = f.fe.fe_logical; - *hole = f.fe.fe_logical + f.fe.fe_length; - if (f.fe.fe_flags & FIEMAP_EXTENT_UNWRITTEN) { - ret |= BDRV_BLOCK_ZERO; - } - } - - return ret; -#else - return -ENOTSUP; -#endif -} - static int try_seek_hole(BlockDriverState *bs, off_t start, off_t *data, off_t *hole) { @@ -1593,13 +1541,10 @@ static int64_t coroutine_fn raw_co_get_block_status(BlockDriverState *bs, ret = try_seek_hole(bs, start, &data, &hole); if (ret < 0) { - ret = try_fiemap(bs, start, &data, &hole, nb_sectors); - if (ret < 0) { - /* Assume everything is allocated. */ - data = 0; - hole = start + nb_sectors * BDRV_SECTOR_SIZE; - ret = 0; - } + /* Assume everything is allocated. */ + data = 0; + hole = start + nb_sectors * BDRV_SECTOR_SIZE; + ret = 0; } assert(ret >= 0); |