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bfs: fix alignment of struct dirent

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This is needed on ARMv7 as inode number is stored using STRD instruction
which can result in alignment fault even when SCTLR.A bit is disabled.

see ARMARM section A3.2.1, Unaligned data access

Change-Id: Ib17bf3f78e84ad7987d8158426bc9b27ded28a8e
Reviewed-on: https://review.haiku-os.org/c/haiku/+/5623
Tested-by: Commit checker robot <[email protected]>
Reviewed-by: Adrien Destugues <[email protected]>
This commit is contained in:
David Karoly
2022-09-08 18:06:26 +00:00
committed by waddlesplash
parent b65cc53f48
commit 7fe1087ed4
1 changed files with 4 additions and 1 deletions
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src/add-ons/kernel/file_systems/bfs/kernel_interface.cpp
+4 -1
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@@ -22,7 +22,10 @@
// TODO: temporary solution as long as there is no public I/O requests API
#ifndef FS_SHELL
# include <io_requests.h>
# include <kernel.h>
# include <util/fs_trim_support.h>
#else
# include "fssh_kernel_priv.h"
#endif
@@ -1759,7 +1762,7 @@ bfs_read_dir(fs_volume* _volume, fs_vnode* _node, void* _cookie,
dirent->d_dev = volume->ID();
dirent->d_ino = id;
dirent->d_reclen = offsetof(struct dirent, d_name) + length + 1;
dirent->d_reclen = ROUNDUP(offsetof(struct dirent, d_name) + length + 1, sizeof(void*));
bufferSize -= dirent->d_reclen;
dirent = (struct dirent*)((uint8*)dirent + dirent->d_reclen);