From fe4e0faac931e01cd3a17ae45e45167e7855f048 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 29 Oct 2024 16:12:00 +0100 Subject: xfs: remove xfs_page_mkwrite_iomap_ops Shared the regular buffered write iomap_ops with the page fault path and just check for the IOMAP_FAULT flag to skip delalloc punching. This keeps the delalloc punching checks in one place, and will make it easier to convert iomap to an iter model where the begin and end handlers are merged into a single callback. Signed-off-by: Christoph Hellwig Reviewed-by: Darrick J. Wong Signed-off-by: Carlos Maiolino --- fs/xfs/xfs_file.c | 2 +- fs/xfs/xfs_iomap.c | 17 ++++++++--------- fs/xfs/xfs_iomap.h | 1 - 3 files changed, 9 insertions(+), 11 deletions(-) diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c index 7464d874e766..c6de6b865ef1 100644 --- a/fs/xfs/xfs_file.c +++ b/fs/xfs/xfs_file.c @@ -1474,7 +1474,7 @@ xfs_write_fault( if (IS_DAX(inode)) ret = xfs_dax_fault_locked(vmf, order, true); else - ret = iomap_page_mkwrite(vmf, &xfs_page_mkwrite_iomap_ops); + ret = iomap_page_mkwrite(vmf, &xfs_buffered_write_iomap_ops); xfs_iunlock(ip, lock_mode); sb_end_pagefault(inode->i_sb); diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c index 86da16f54be9..0c7a9b200004 100644 --- a/fs/xfs/xfs_iomap.c +++ b/fs/xfs/xfs_iomap.c @@ -1234,6 +1234,14 @@ xfs_buffered_write_iomap_end( if (iomap->type != IOMAP_DELALLOC || !(iomap->flags & IOMAP_F_NEW)) return 0; + /* + * iomap_page_mkwrite() will never fail in a way that requires delalloc + * extents that it allocated to be revoked. Hence never try to release + * them here. + */ + if (flags & IOMAP_FAULT) + return 0; + /* Nothing to do if we've written the entire delalloc extent */ start_byte = iomap_last_written_block(inode, offset, written); end_byte = round_up(offset + length, i_blocksize(inode)); @@ -1260,15 +1268,6 @@ const struct iomap_ops xfs_buffered_write_iomap_ops = { .iomap_end = xfs_buffered_write_iomap_end, }; -/* - * iomap_page_mkwrite() will never fail in a way that requires delalloc extents - * that it allocated to be revoked. Hence we do not need an .iomap_end method - * for this operation. - */ -const struct iomap_ops xfs_page_mkwrite_iomap_ops = { - .iomap_begin = xfs_buffered_write_iomap_begin, -}; - static int xfs_read_iomap_begin( struct inode *inode, diff --git a/fs/xfs/xfs_iomap.h b/fs/xfs/xfs_iomap.h index 4da13440bae9..8347268af727 100644 --- a/fs/xfs/xfs_iomap.h +++ b/fs/xfs/xfs_iomap.h @@ -48,7 +48,6 @@ xfs_aligned_fsb_count( } extern const struct iomap_ops xfs_buffered_write_iomap_ops; -extern const struct iomap_ops xfs_page_mkwrite_iomap_ops; extern const struct iomap_ops xfs_direct_write_iomap_ops; extern const struct iomap_ops xfs_read_iomap_ops; extern const struct iomap_ops xfs_seek_iomap_ops; -- cgit v1.2.3