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author | Magnus Deininger <dma05@web.de> | 2008-10-17 19:44:46 +0200 |
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committer | Eric Van Hensbergen <ericvh@gmail.com> | 2008-10-17 19:44:46 +0200 |
commit | 57c7b4e68edf3b4fe7f977db9ad437e0f7f7c382 (patch) | |
tree | 4ea7680bbe24867f313f29cc2429da26a62c67af /fs | |
parent | 9p: Improve debug support (diff) | |
download | linux-57c7b4e68edf3b4fe7f977db9ad437e0f7f7c382.tar.xz linux-57c7b4e68edf3b4fe7f977db9ad437e0f7f7c382.zip |
9p: fix device file handling
In v9fs_get_inode(), for block, as well as char devices (in theory),
the function init_special_inode() is called to set up callback functions
for file ops. this function uses the file mode's value to determine whether
to use block or char dev functions. In v9fs_inode_from_fid(), the function
p9mode2unixmode() is used, but for all devices it initially returns S_IFBLK,
then uses v9fs_get_inode() to initialise a new inode, then finally uses
v9fs_stat2inode(), which would determine whether the inode is a block or
character device. However, at that point init_special_inode() had already
decided to use the block device functions, so even if the inode's mode is
turned to a character device, the block functions are still used to operate
on them. The attached patch simply calls init_special_inode() again for devices
after parsing device node data in v9fs_stat2inode() so that the proper functions
are used.
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/9p/vfs_inode.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c index e96d84aafbe2..8314d3f43b71 100644 --- a/fs/9p/vfs_inode.c +++ b/fs/9p/vfs_inode.c @@ -864,6 +864,7 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode, stat->extension); }; inode->i_rdev = MKDEV(major, minor); + init_special_inode(inode, inode->i_mode, inode->i_rdev); } else inode->i_rdev = 0; |