diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/file-posix.c | 37 |
1 files changed, 16 insertions, 21 deletions
diff --git a/block/file-posix.c b/block/file-posix.c index b283093..1f1756e 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -106,10 +106,6 @@ #include <sys/diskslice.h> #endif -#ifdef CONFIG_XFS -#include <xfs/xfs.h> -#endif - /* OS X does not have O_DSYNC */ #ifndef O_DSYNC #ifdef O_SYNC @@ -156,9 +152,6 @@ typedef struct BDRVRawState { int perm_change_flags; BDRVReopenState *reopen_state; -#ifdef CONFIG_XFS - bool is_xfs:1; -#endif bool has_discard:1; bool has_write_zeroes:1; bool discard_zeroes:1; @@ -409,14 +402,22 @@ static void raw_probe_alignment(BlockDriverState *bs, int fd, Error **errp) if (probe_logical_blocksize(fd, &bs->bl.request_alignment) < 0) { bs->bl.request_alignment = 0; } -#ifdef CONFIG_XFS - if (s->is_xfs) { - struct dioattr da; - if (xfsctl(NULL, fd, XFS_IOC_DIOINFO, &da) >= 0) { - bs->bl.request_alignment = da.d_miniosz; - /* The kernel returns wrong information for d_mem */ - /* s->buf_align = da.d_mem; */ - } + +#ifdef __linux__ + /* + * The XFS ioctl definitions are shipped in extra packages that might + * not always be available. Since we just need the XFS_IOC_DIOINFO ioctl + * here, we simply use our own definition instead: + */ + struct xfs_dioattr { + uint32_t d_mem; + uint32_t d_miniosz; + uint32_t d_maxiosz; + } da; + if (ioctl(fd, _IOR('X', 30, struct xfs_dioattr), &da) >= 0) { + bs->bl.request_alignment = da.d_miniosz; + /* The kernel returns wrong information for d_mem */ + /* s->buf_align = da.d_mem; */ } #endif @@ -798,12 +799,6 @@ static int raw_open_common(BlockDriverState *bs, QDict *options, #endif s->needs_alignment = raw_needs_alignment(bs); -#ifdef CONFIG_XFS - if (platform_test_xfs_fd(s->fd)) { - s->is_xfs = true; - } -#endif - bs->supported_zero_flags = BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK; if (S_ISREG(st.st_mode)) { /* When extending regular files, we get zeros from the OS */ |