F2FS inode may have different max size, so change to use per-inode maxbytes.
Signed-off-by: Chengguang Xu <[email protected]> --- Hi Jaegeuk, Chao Please take this instead of previous v2 patch which has sent by mistake. v1->v2: - Calculate max bytes in inode lock. fs/f2fs/data.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index 7c95818639a6..b734ca023149 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -1837,6 +1837,7 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, int ret = 0; bool compr_cluster = false; unsigned int cluster_size = F2FS_I(inode)->i_cluster_size; + loff_t maxbytes; if (fieinfo->fi_flags & FIEMAP_FLAG_CACHE) { ret = f2fs_precache_extents(inode); @@ -1850,6 +1851,15 @@ int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, inode_lock(inode); + maxbytes = max_file_blocks(inode) << F2FS_BLKSIZE_BITS; + if (start > maxbytes) { + ret = -EFBIG; + goto out; + } + + if (len > maxbytes || (maxbytes - len) < start) + len = maxbytes - start; + if (fieinfo->fi_flags & FIEMAP_FLAG_XATTR) { ret = f2fs_xattr_fiemap(inode, fieinfo); goto out; -- 2.27.0 _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
