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authorCheng Nie <niecheng1@uniontech.com>2024-01-18 09:25:11 +0300
committerTheodore Ts'o <tytso@mit.edu>2024-02-22 06:33:21 +0300
commit547e64bda9c7bd6bda2d20a329bb0f60258fe19b (patch)
treef6dada6f98d861f46d57933b3e8dc9c6b24fc4ad
parent4b55d3431ce5ce906480f95391b7af4fecfa2d84 (diff)
downloadlinux-547e64bda9c7bd6bda2d20a329bb0f60258fe19b.tar.xz
ext4: fix the comment of ext4_map_blocks()/ext4_ext_map_blocks()
this comment of ext4_map_blocks()/ext4_ext_map_blocks() need update after commit c21770573319("ext4: Define a new set of flags for ext4_get_blocks()"). Signed-off-by: Cheng Nie <niecheng1@uniontech.com> Link: https://lore.kernel.org/r/20240118062511.28276-1-niecheng1@uniontech.com Signed-off-by: Theodore Ts'o <tytso@mit.edu>
-rw-r--r--fs/ext4/extents.c6
-rw-r--r--fs/ext4/inode.c10
2 files changed, 8 insertions, 8 deletions
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 7669d154c05e..e57054bdc5fd 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -4111,10 +4111,10 @@ insert_hole:
*
* Need to be called with
* down_read(&EXT4_I(inode)->i_data_sem) if not allocating file system block
- * (ie, create is zero). Otherwise down_write(&EXT4_I(inode)->i_data_sem)
+ * (ie, flags is zero). Otherwise down_write(&EXT4_I(inode)->i_data_sem)
*
* return > 0, number of blocks already mapped/allocated
- * if create == 0 and these are pre-allocated blocks
+ * if flags doesn't contain EXT4_GET_BLOCKS_CREATE and these are pre-allocated blocks
* buffer head is unmapped
* otherwise blocks are mapped
*
@@ -4218,7 +4218,7 @@ int ext4_ext_map_blocks(handle_t *handle, struct inode *inode,
/*
* requested block isn't allocated yet;
- * we couldn't try to create block if create flag is zero
+ * we couldn't try to create block if flags doesn't contain EXT4_GET_BLOCKS_CREATE
*/
if ((flags & EXT4_GET_BLOCKS_CREATE) == 0) {
ext4_lblk_t len;
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 2ccf3b5e3a7c..537803250ca9 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -465,9 +465,10 @@ static void ext4_map_blocks_es_recheck(handle_t *handle,
* Otherwise, call with ext4_ind_map_blocks() to handle indirect mapping
* based files
*
- * On success, it returns the number of blocks being mapped or allocated. if
- * create==0 and the blocks are pre-allocated and unwritten, the resulting @map
- * is marked as unwritten. If the create == 1, it will mark @map as mapped.
+ * On success, it returns the number of blocks being mapped or allocated.
+ * If flags doesn't contain EXT4_GET_BLOCKS_CREATE the blocks are
+ * pre-allocated and unwritten, the resulting @map is marked as unwritten.
+ * If the flags contain EXT4_GET_BLOCKS_CREATE, it will mark @map as mapped.
*
* It returns 0 if plain look up failed (blocks have not been allocated), in
* that case, @map is returned as unmapped but we still do fill map->m_len to
@@ -589,8 +590,7 @@ found:
* Returns if the blocks have already allocated
*
* Note that if blocks have been preallocated
- * ext4_ext_get_block() returns the create = 0
- * with buffer head unmapped.
+ * ext4_ext_map_blocks() returns with buffer head unmapped
*/
if (retval > 0 && map->m_flags & EXT4_MAP_MAPPED)
/*