diff options
Diffstat (limited to 'fs/xfs/xfs_file.c')
| -rw-r--r-- | fs/xfs/xfs_file.c | 48 |
1 files changed, 7 insertions, 41 deletions
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index f5c5dbbf1792..299aee4b7b0b 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -48,20 +48,6 @@ static const struct vm_operations_struct xfs_file_vm_ops; -/* - * Clear the specified ranges to zero through either the pagecache or DAX. - * Holes and unwritten extents will be left as-is as they already are zeroed. - */ -int -xfs_zero_range( - struct xfs_inode *ip, - xfs_off_t pos, - xfs_off_t count, - bool *did_zero) -{ - return iomap_zero_range(VFS_I(ip), pos, count, did_zero, &xfs_iomap_ops); -} - int xfs_update_prealloc_flags( struct xfs_inode *ip, @@ -301,31 +287,6 @@ xfs_file_read_iter( } /* - * Zero any on disk space between the current EOF and the new, larger EOF. - * - * This handles the normal case of zeroing the remainder of the last block in - * the file and the unusual case of zeroing blocks out beyond the size of the - * file. This second case only happens with fixed size extents and when the - * system crashes before the inode size was updated but after blocks were - * allocated. - * - * Expects the iolock to be held exclusive, and will take the ilock internally. - */ -int /* error (positive) */ -xfs_zero_eof( - struct xfs_inode *ip, - xfs_off_t offset, /* starting I/O offset */ - xfs_fsize_t isize, /* current inode size */ - bool *did_zeroing) -{ - ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL)); - ASSERT(offset > isize); - - trace_xfs_zero_eof(ip, isize, offset - isize); - return xfs_zero_range(ip, isize, offset - isize, did_zeroing); -} - -/* * Common pre-write limit and setup checks. * * Called with the iolocked held either shared and exclusive according to @@ -344,6 +305,7 @@ xfs_file_aio_write_checks( ssize_t error = 0; size_t count = iov_iter_count(from); bool drained_dio = false; + loff_t isize; restart: error = generic_write_checks(iocb, from); @@ -380,7 +342,8 @@ restart: * and hence be able to correctly determine if we need to run zeroing. */ spin_lock(&ip->i_flags_lock); - if (iocb->ki_pos > i_size_read(inode)) { + isize = i_size_read(inode); + if (iocb->ki_pos > isize) { spin_unlock(&ip->i_flags_lock); if (!drained_dio) { if (*iolock == XFS_IOLOCK_SHARED) { @@ -401,7 +364,10 @@ restart: drained_dio = true; goto restart; } - error = xfs_zero_eof(ip, iocb->ki_pos, i_size_read(inode), NULL); + + trace_xfs_zero_eof(ip, isize, iocb->ki_pos - isize); + error = iomap_zero_range(inode, isize, iocb->ki_pos - isize, + NULL, &xfs_iomap_ops); if (error) return error; } else |