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ext4: Add API to bring in support for unwritten io_end_vec conversion

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This patch just brings in the API for conversion of unwritten io_end_vec
extents which will be required for blocksize < pagesize support
for dioread_nolock feature.

No functional changes in this patch.

Signed-off-by: Ritesh Harjani <riteshh@linux.ibm.com>
Link: https://lore.kernel.org/r/20191016073711.4141-3-riteshh@linux.ibm.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
This commit is contained in:
Ritesh Harjani
2019-10-16 13:07:08 +05:30
committed by Theodore Ts'o
parent 821ff38d19
commit a00713ea98
3 changed files with 32 additions and 19 deletions
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7
fs/ext4/page-io.c
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@@ -149,7 +149,7 @@ static int ext4_end_io_end(ext4_io_end_t *io_end)
io_end, inode->i_ino, io_end->list.next, io_end->list.prev);
io_end->handle = NULL; /* Following call will use up the handle */
ret = ext4_convert_unwritten_extents(handle, inode, offset, size);
ret = ext4_convert_unwritten_io_end_vec(handle, io_end);
if (ret < 0 && !ext4_forced_shutdown(EXT4_SB(inode->i_sb))) {
ext4_msg(inode->i_sb, KERN_EMERG,
"failed to convert unwritten extents to written "
@@ -269,9 +269,8 @@ int ext4_put_io_end(ext4_io_end_t *io_end)
if (atomic_dec_and_test(&io_end->count)) {
if (io_end->flag & EXT4_IO_END_UNWRITTEN) {
err = ext4_convert_unwritten_extents(io_end->handle,
io_end->inode, io_end->offset,
io_end->size);
err = ext4_convert_unwritten_io_end_vec(io_end->handle,
io_end);
io_end->handle = NULL;
ext4_clear_io_unwritten_flag(io_end);
}