In f2fs_read_data_large_folio(), the block zeroing path calls folio_zero_range() and then continues the loop. However, it fails to advance index and offset before continuing.
This can cause the loop to repeatedly process the same subpage of the folio, leading to stalls/hangs and incorrect progress when reading large folios with holes/zeroed blocks. Fix it by incrementing index and offset in the zeroing path before continuing. Signed-off-by: Nanzhe Zhao <[email protected]> --- fs/f2fs/data.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c index ac569a396914..07c222bcc5e0 100644 --- a/fs/f2fs/data.c +++ b/fs/f2fs/data.c @@ -2446,7 +2446,7 @@ static int f2fs_read_data_large_folio(struct inode *inode, if (!folio) goto out; - folio_in_bio = false + folio_in_bio = false; index = folio->index; offset = 0; ffs = NULL; @@ -2483,6 +2483,8 @@ static int f2fs_read_data_large_folio(struct inode *inode, ret = -EIO; goto err_out; } + index++; + offset++; continue; } else if((map.m_flags & F2FS_MAP_MAPPED)) { block_nr = map.m_pblk + index - map.m_lblk; -- 2.34.1 _______________________________________________ Linux-f2fs-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel
