diff options
| author | Christoph Hellwig <hch@lst.de> | 2023-08-01 19:21:57 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-08-02 09:13:09 -0600 |
| commit | 2ba39cc46bfe463cb9673bf62a04c4c21942f1f2 (patch) | |
| tree | 6484eb5bd2712c056a9bc03e32ea9f3b9e219c75 /include/linux/mm.h | |
| parent | 4a8b719f95c0dcd15fb7a04b806ad8139fa7c850 (diff) | |
fs: rename and move block_page_mkwrite_return
block_page_mkwrite_return is neither block nor mkwrite specific, and
should not be under CONFIG_BLOCK. Move it to mm.h and rename it to
vmf_fs_error.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230801172201.1923299-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/mm.h')
| -rw-r--r-- | include/linux/mm.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h index 2dd73e4f3d8e..75777eae1c9c 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -3386,6 +3386,24 @@ static inline vm_fault_t vmf_error(int err) return VM_FAULT_SIGBUS; } +/* + * Convert errno to return value for ->page_mkwrite() calls. + * + * This should eventually be merged with vmf_error() above, but will need a + * careful audit of all vmf_error() callers. + */ +static inline vm_fault_t vmf_fs_error(int err) +{ + if (err == 0) + return VM_FAULT_LOCKED; + if (err == -EFAULT || err == -EAGAIN) + return VM_FAULT_NOPAGE; + if (err == -ENOMEM) + return VM_FAULT_OOM; + /* -ENOSPC, -EDQUOT, -EIO ... */ + return VM_FAULT_SIGBUS; +} + struct page *follow_page(struct vm_area_struct *vma, unsigned long address, unsigned int foll_flags); |