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authorGrant Likely <grant.likely@secretlab.ca>2011-02-28 11:36:21 +0300
committerGrant Likely <grant.likely@secretlab.ca>2011-02-28 11:36:21 +0300
commit38a5d6736e7f714cc56d58692001e66dcbb98799 (patch)
tree337d32375e10b04642013710c2c424514474b32c /fs/ioctl.c
parent0bfd95a2a104dfc2469d68de52df99939371c0d4 (diff)
parentf5412be599602124d2bdd49947b231dd77c0bf99 (diff)
downloadlinux-38a5d6736e7f714cc56d58692001e66dcbb98799.tar.xz
Merge commit 'v2.6.38-rc6' into devicetree/next
Conflicts: drivers/spi/pxa2xx_spi_pci.c
Diffstat (limited to 'fs/ioctl.c')
-rw-r--r--fs/ioctl.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/fs/ioctl.c b/fs/ioctl.c
index a59635e295fa..1eebeb72b202 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -273,6 +273,13 @@ int __generic_block_fiemap(struct inode *inode,
len = isize;
}
+ /*
+ * Some filesystems can't deal with being asked to map less than
+ * blocksize, so make sure our len is at least block length.
+ */
+ if (logical_to_blk(inode, len) == 0)
+ len = blk_to_logical(inode, 1);
+
start_blk = logical_to_blk(inode, start);
last_blk = logical_to_blk(inode, start + len - 1);