This patch follows ext4 to allow readdir() in large empty directory to
be interrupted. Referenced commit of ext4: 1f60fbe72749 ("ext4: allow
readdir()'s of large empty directories to be interrupted").Signed-off-by: Chao Yu <[email protected]> --- fs/f2fs/dir.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c index 148927f5bc93..1ebd206a4085 100644 --- a/fs/f2fs/dir.c +++ b/fs/f2fs/dir.c @@ -10,6 +10,7 @@ */ #include <linux/fs.h> #include <linux/f2fs_fs.h> +#include <linux/sched/signal.h> #include "f2fs.h" #include "node.h" #include "acl.h" @@ -875,6 +876,14 @@ static int f2fs_readdir(struct file *file, struct dir_context *ctx) min(npages - n, (pgoff_t)MAX_DIR_RA_PAGES)); for (; n < npages; n++) { + + /* allow readdir() to be interrupted */ + if (fatal_signal_pending(current)) { + err = -ERESTARTSYS; + goto out_free; + } + cond_resched(); + dentry_page = get_lock_data_page(inode, n, false); if (IS_ERR(dentry_page)) { err = PTR_ERR(dentry_page); -- 2.13.1.388.g69e6b9b4f4a9
