linux-ext4 - [PATCH 1/2] ext4: remove EXT4_GET_BLOCKS_KEEP

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Message-Id: <20200415203140.30349-2-enwlinux@gmail.com>
Date:   Wed, 15 Apr 2020 16:31:39 -0400
From:   Eric Whitney <enwlinux@...il.com>
To:     linux-ext4@...r.kernel.org
Cc:     tytso@....edu, Eric Whitney <enwlinux@...il.com>
Subject: [PATCH 1/2] ext4: remove EXT4_GET_BLOCKS_KEEP_SIZE flag

The eofblocks code was removed in the 5.7 release by "ext4: remove
EOFBLOCKS_FL and associated code" (4337ecd1fe99).  The ext4_map_blocks()
flag used to trigger it can now be removed as well.

Signed-off-by: Eric Whitney <enwlinux@...il.com>
---
 fs/ext4/ext4.h              |  2 --
 fs/ext4/extents.c           |  4 ----
 fs/ext4/inode.c             | 12 ++++--------
 include/trace/events/ext4.h |  1 -
 4 files changed, 4 insertions(+), 15 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 91eb4381cae5..c8d060627448 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -609,8 +609,6 @@ enum {
 #define EXT4_GET_BLOCKS_METADATA_NOFAIL		0x0020
 	/* Don't normalize allocation size (used for fallocate) */
 #define EXT4_GET_BLOCKS_NO_NORMALIZE		0x0040
-	/* Request will not result in inode size update (user for fallocate) */
-#define EXT4_GET_BLOCKS_KEEP_SIZE		0x0080
 	/* Convert written extents to unwritten */
 #define EXT4_GET_BLOCKS_CONVERT_UNWRITTEN	0x0100
 	/* Write zeros to newly created written extents */
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 031752cfb6f7..18ede2f9e4ad 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4507,8 +4507,6 @@ static long ext4_zero_range(struct file *file, loff_t offset,
 	}
 
 	flags = EXT4_GET_BLOCKS_CREATE_UNWRIT_EXT;
-	if (mode & FALLOC_FL_KEEP_SIZE)
-		flags |= EXT4_GET_BLOCKS_KEEP_SIZE;
 
 	/* Wait all existing dio workers, newcomers will block on i_mutex */
 	inode_dio_wait(inode);
@@ -4647,8 +4645,6 @@ long ext4_fallocate(struct file *file, int mode, loff_t offset, loff_t len)
 
 	max_blocks = EXT4_MAX_BLOCKS(len, offset, blkbits);
 	flags = EXT4_GET_BLOCKS_CREATE_UNWRIT_EXT;
-	if (mode & FALLOC_FL_KEEP_SIZE)
-		flags |= EXT4_GET_BLOCKS_KEEP_SIZE;
 
 	inode_lock(inode);
 
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index e416096fc081..97562c51c1c9 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -432,11 +432,9 @@ static void ext4_map_blocks_es_recheck(handle_t *handle,
 	 */
 	down_read(&EXT4_I(inode)->i_data_sem);
 	if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) {
-		retval = ext4_ext_map_blocks(handle, inode, map, flags &
-					     EXT4_GET_BLOCKS_KEEP_SIZE);
+		retval = ext4_ext_map_blocks(handle, inode, map, 0);
 	} else {
-		retval = ext4_ind_map_blocks(handle, inode, map, flags &
-					     EXT4_GET_BLOCKS_KEEP_SIZE);
+		retval = ext4_ind_map_blocks(handle, inode, map, 0);
 	}
 	up_read((&EXT4_I(inode)->i_data_sem));
 
@@ -541,11 +539,9 @@ int ext4_map_blocks(handle_t *handle, struct inode *inode,
 	 */
 	down_read(&EXT4_I(inode)->i_data_sem);
 	if (ext4_test_inode_flag(inode, EXT4_INODE_EXTENTS)) {
-		retval = ext4_ext_map_blocks(handle, inode, map, flags &
-					     EXT4_GET_BLOCKS_KEEP_SIZE);
+		retval = ext4_ext_map_blocks(handle, inode, map, 0);
 	} else {
-		retval = ext4_ind_map_blocks(handle, inode, map, flags &
-					     EXT4_GET_BLOCKS_KEEP_SIZE);
+		retval = ext4_ind_map_blocks(handle, inode, map, 0);
 	}
 	if (retval > 0) {
 		unsigned int status;
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 19c87661eeec..40ff8a2fc763 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -45,7 +45,6 @@ struct partial_cluster;
 	{ EXT4_GET_BLOCKS_CONVERT,		"CONVERT" },		\
 	{ EXT4_GET_BLOCKS_METADATA_NOFAIL,	"METADATA_NOFAIL" },	\
 	{ EXT4_GET_BLOCKS_NO_NORMALIZE,		"NO_NORMALIZE" },	\
-	{ EXT4_GET_BLOCKS_KEEP_SIZE,		"KEEP_SIZE" },		\
 	{ EXT4_GET_BLOCKS_ZERO,			"ZERO" })
 
 /*
-- 
2.11.0