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authorChristoph Hellwig <hch@lst.de>2023-08-01 19:21:57 +0200
committerJens Axboe <axboe@kernel.dk>2023-08-02 09:13:09 -0600
commit2ba39cc46bfe463cb9673bf62a04c4c21942f1f2 (patch)
tree6484eb5bd2712c056a9bc03e32ea9f3b9e219c75
parent4a8b719f95c0dcd15fb7a04b806ad8139fa7c850 (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>
-rw-r--r--fs/ext4/inode.c2
-rw-r--r--fs/f2fs/file.c2
-rw-r--r--fs/gfs2/file.c16
-rw-r--r--fs/iomap/buffered-io.c2
-rw-r--r--fs/nilfs2/file.c2
-rw-r--r--fs/udf/file.c2
-rw-r--r--include/linux/buffer_head.h12
-rw-r--r--include/linux/mm.h18
8 files changed, 31 insertions, 25 deletions
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 43775a6ca505..6eea0886b885 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -6140,7 +6140,7 @@ retry_alloc:
if (err == -ENOSPC && ext4_should_retry_alloc(inode->i_sb, &retries))
goto retry_alloc;
out_ret:
- ret = block_page_mkwrite_return(err);
+ ret = vmf_fs_error(err);
out:
filemap_invalidate_unlock_shared(mapping);
sb_end_pagefault(inode->i_sb);
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 093039dee992..9b3871fb9bfc 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -159,7 +159,7 @@ out_sem:
sb_end_pagefault(inode->i_sb);
err:
- return block_page_mkwrite_return(err);
+ return vmf_fs_error(err);
}
static const struct vm_operations_struct f2fs_file_vm_ops = {
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 1bf3c4453516..897ef62d6d77 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -432,7 +432,7 @@ static vm_fault_t gfs2_page_mkwrite(struct vm_fault *vmf)
gfs2_holder_init(ip->i_gl, LM_ST_EXCLUSIVE, 0, &gh);
err = gfs2_glock_nq(&gh);
if (err) {
- ret = block_page_mkwrite_return(err);
+ ret = vmf_fs_error(err);
goto out_uninit;
}
@@ -474,7 +474,7 @@ static vm_fault_t gfs2_page_mkwrite(struct vm_fault *vmf)
err = gfs2_rindex_update(sdp);
if (err) {
- ret = block_page_mkwrite_return(err);
+ ret = vmf_fs_error(err);
goto out_unlock;
}
@@ -482,12 +482,12 @@ static vm_fault_t gfs2_page_mkwrite(struct vm_fault *vmf)
ap.target = data_blocks + ind_blocks;
err = gfs2_quota_lock_check(ip, &ap);
if (err) {
- ret = block_page_mkwrite_return(err);
+ ret = vmf_fs_error(err);
goto out_unlock;
}
err = gfs2_inplace_reserve(ip, &ap);
if (err) {
- ret = block_page_mkwrite_return(err);
+ ret = vmf_fs_error(err);
goto out_quota_unlock;
}
@@ -500,7 +500,7 @@ static vm_fault_t gfs2_page_mkwrite(struct vm_fault *vmf)
}
err = gfs2_trans_begin(sdp, rblocks, 0);
if (err) {
- ret = block_page_mkwrite_return(err);
+ ret = vmf_fs_error(err);
goto out_trans_fail;
}
@@ -508,7 +508,7 @@ static vm_fault_t gfs2_page_mkwrite(struct vm_fault *vmf)
if (gfs2_is_stuffed(ip)) {
err = gfs2_unstuff_dinode(ip);
if (err) {
- ret = block_page_mkwrite_return(err);
+ ret = vmf_fs_error(err);
goto out_trans_end;
}
}
@@ -524,7 +524,7 @@ static vm_fault_t gfs2_page_mkwrite(struct vm_fault *vmf)
err = gfs2_allocate_page_backing(page, length);
if (err)
- ret = block_page_mkwrite_return(err);
+ ret = vmf_fs_error(err);
out_page_locked:
if (ret != VM_FAULT_LOCKED)
@@ -558,7 +558,7 @@ static vm_fault_t gfs2_fault(struct vm_fault *vmf)
gfs2_holder_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
err = gfs2_glock_nq(&gh);
if (err) {
- ret = block_page_mkwrite_return(err);
+ ret = vmf_fs_error(err);
goto out_uninit;
}
ret = filemap_fault(vmf);
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index adb92cdb24b0..0607790827b4 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -1286,7 +1286,7 @@ vm_fault_t iomap_page_mkwrite(struct vm_fault *vmf, const struct iomap_ops *ops)
return VM_FAULT_LOCKED;
out_unlock:
folio_unlock(folio);
- return block_page_mkwrite_return(ret);
+ return vmf_fs_error(ret);
}
EXPORT_SYMBOL_GPL(iomap_page_mkwrite);
diff --git a/fs/nilfs2/file.c b/fs/nilfs2/file.c
index a9eb3487efb2..740ce26d1e76 100644
--- a/fs/nilfs2/file.c
+++ b/fs/nilfs2/file.c
@@ -108,7 +108,7 @@ static vm_fault_t nilfs_page_mkwrite(struct vm_fault *vmf)
wait_for_stable_page(page);
out:
sb_end_pagefault(inode->i_sb);
- return block_page_mkwrite_return(ret);
+ return vmf_fs_error(ret);
}
static const struct vm_operations_struct nilfs_file_vm_ops = {
diff --git a/fs/udf/file.c b/fs/udf/file.c
index 243840dc83ad..c0e2080e639e 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -67,7 +67,7 @@ static vm_fault_t udf_page_mkwrite(struct vm_fault *vmf)
err = block_commit_write(page, 0, end);
if (err < 0) {
unlock_page(page);
- ret = block_page_mkwrite_return(err);
+ ret = vmf_fs_error(err);
goto out_unlock;
}
out_dirty:
diff --git a/include/linux/buffer_head.h b/include/linux/buffer_head.h
index 6cb3e9af78c9..7002a9ff63a3 100644
--- a/include/linux/buffer_head.h
+++ b/include/linux/buffer_head.h
@@ -291,18 +291,6 @@ int generic_cont_expand_simple(struct inode *inode, loff_t size);
int block_commit_write(struct page *page, unsigned from, unsigned to);
int block_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf,
get_block_t get_block);
-/* Convert errno to return value from ->page_mkwrite() call */
-static inline vm_fault_t block_page_mkwrite_return(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;
-}
sector_t generic_block_bmap(struct address_space *, sector_t, get_block_t *);
int block_truncate_page(struct address_space *, loff_t, get_block_t *);
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);