diff options
Diffstat (limited to 'block/export')
| -rw-r--r-- | block/export/fuse.c | 41 |
1 files changed, 21 insertions, 20 deletions
diff --git a/block/export/fuse.c b/block/export/fuse.c index 6710d8a..d25e478 100644 --- a/block/export/fuse.c +++ b/block/export/fuse.c @@ -629,7 +629,26 @@ static void fuse_fallocate(fuse_req_t req, fuse_ino_t inode, int mode, length = MIN(length, blk_len - offset); } - if (mode & FALLOC_FL_PUNCH_HOLE) { + if (!mode) { + /* We can only fallocate at the EOF with a truncate */ + if (offset < blk_len) { + fuse_reply_err(req, EOPNOTSUPP); + return; + } + + if (offset > blk_len) { + /* No preallocation needed here */ + ret = fuse_do_truncate(exp, offset, true, PREALLOC_MODE_OFF); + if (ret < 0) { + fuse_reply_err(req, -ret); + return; + } + } + + ret = fuse_do_truncate(exp, offset + length, true, + PREALLOC_MODE_FALLOC); + } + else if (mode & FALLOC_FL_PUNCH_HOLE) { if (!(mode & FALLOC_FL_KEEP_SIZE)) { fuse_reply_err(req, EINVAL); return; @@ -665,25 +684,7 @@ static void fuse_fallocate(fuse_req_t req, fuse_ino_t inode, int mode, } while (ret == 0 && length > 0); } #endif /* CONFIG_FALLOCATE_ZERO_RANGE */ - else if (!mode) { - /* We can only fallocate at the EOF with a truncate */ - if (offset < blk_len) { - fuse_reply_err(req, EOPNOTSUPP); - return; - } - - if (offset > blk_len) { - /* No preallocation needed here */ - ret = fuse_do_truncate(exp, offset, true, PREALLOC_MODE_OFF); - if (ret < 0) { - fuse_reply_err(req, -ret); - return; - } - } - - ret = fuse_do_truncate(exp, offset + length, true, - PREALLOC_MODE_FALLOC); - } else { + else { ret = -EOPNOTSUPP; } |