[PATCH] fs: make generic_block_fiemap sig-tolerant

[Dmitry Monakhov]

__generic_block_fiemap may spin very long time for large sparse files.

Signed-off-by: Dmitry Monakhov <dmonakhov@xxxxxxxxxx>
---
 fs/ioctl.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/fs/ioctl.c b/fs/ioctl.c
index 8ac3fad..6fbeb68 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -379,6 +379,11 @@ int __generic_block_fiemap(struct inode *inode,
 				past_eof = true;
 		}
 		cond_resched();
+		if (fatal_signal_pending(current)) {
+			ret = -EINTR;
+			break;
+		}
+
 	} while (1);
 
 	/* If ret is 1 then we just hit the end of the extent array */
-- 
1.7.1

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