Re: [PATCH 2/2] hfsplus: add error propagation to__hfsplus_ext_write_extent()

From: Vyacheslav Dubeyko
Date: Wed Apr 10 2013 - 02:40:55 EST


On Tue, 2013-04-09 at 22:14 +0400, Alexey Khoroshilov wrote:
> __hfsplus_ext_write_extent() suppresses errors coming from hfs_brec_find().
> The patch implements error code propagation.
>

Looks good for me.

Reviewed-by: Vyacheslav Dubeyko <slava@xxxxxxxxxxx>

Tnanks,
Vyacheslav Dubeyko.

> Signed-off-by: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>
> ---
> fs/hfsplus/extents.c | 21 +++++++++++++--------
> 1 file changed, 13 insertions(+), 8 deletions(-)
>
> diff --git a/fs/hfsplus/extents.c b/fs/hfsplus/extents.c
> index a94f0f7..fed73f7 100644
> --- a/fs/hfsplus/extents.c
> +++ b/fs/hfsplus/extents.c
> @@ -83,7 +83,7 @@ static u32 hfsplus_ext_lastblock(struct hfsplus_extent *ext)
> return be32_to_cpu(ext->start_block) + be32_to_cpu(ext->block_count);
> }
>
> -static void __hfsplus_ext_write_extent(struct inode *inode,
> +static int __hfsplus_ext_write_extent(struct inode *inode,
> struct hfs_find_data *fd)
> {
> struct hfsplus_inode_info *hip = HFSPLUS_I(inode);
> @@ -98,13 +98,13 @@ static void __hfsplus_ext_write_extent(struct inode *inode,
> res = hfs_brec_find(fd, hfs_find_rec_by_key);
> if (hip->extent_state & HFSPLUS_EXT_NEW) {
> if (res != -ENOENT)
> - return;
> + return res;
> hfs_brec_insert(fd, hip->cached_extents,
> sizeof(hfsplus_extent_rec));
> hip->extent_state &= ~(HFSPLUS_EXT_DIRTY | HFSPLUS_EXT_NEW);
> } else {
> if (res)
> - return;
> + return res;
> hfs_bnode_write(fd->bnode, hip->cached_extents,
> fd->entryoffset, fd->entrylength);
> hip->extent_state &= ~HFSPLUS_EXT_DIRTY;
> @@ -117,11 +117,13 @@ static void __hfsplus_ext_write_extent(struct inode *inode,
> * to explicily mark the inode dirty, too.
> */
> set_bit(HFSPLUS_I_EXT_DIRTY, &hip->flags);
> +
> + return 0;
> }
>
> static int hfsplus_ext_write_extent_locked(struct inode *inode)
> {
> - int res;
> + int res = 0;
>
> if (HFSPLUS_I(inode)->extent_state & HFSPLUS_EXT_DIRTY) {
> struct hfs_find_data fd;
> @@ -129,10 +131,10 @@ static int hfsplus_ext_write_extent_locked(struct inode *inode)
> res = hfs_find_init(HFSPLUS_SB(inode->i_sb)->ext_tree, &fd);
> if (res)
> return res;
> - __hfsplus_ext_write_extent(inode, &fd);
> + res = __hfsplus_ext_write_extent(inode, &fd);
> hfs_find_exit(&fd);
> }
> - return 0;
> + return res;
> }
>
> int hfsplus_ext_write_extent(struct inode *inode)
> @@ -175,8 +177,11 @@ static inline int __hfsplus_ext_cache_extent(struct hfs_find_data *fd,
>
> WARN_ON(!mutex_is_locked(&hip->extents_lock));
>
> - if (hip->extent_state & HFSPLUS_EXT_DIRTY)
> - __hfsplus_ext_write_extent(inode, fd);
> + if (hip->extent_state & HFSPLUS_EXT_DIRTY) {
> + res = __hfsplus_ext_write_extent(inode, fd);
> + if (res)
> + return res;
> + }
>
> res = __hfsplus_ext_read_extent(fd, hip->cached_extents, inode->i_ino,
> block, HFSPLUS_IS_RSRC(inode) ?


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