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[PATCH] propagate mode through open_bdev_excl/close_bdev_excl

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replace open_bdev_excl/close_bdev_excl with variants taking fmode_t.
superblock gets the value used to mount it stored in sb->s_mode

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro
2008-02-22 19:50:45 -05:00
parent 9a1c354276
commit 30c40d2c01
6 changed files with 31 additions and 24 deletions
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14
fs/super.c
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@@ -760,9 +760,13 @@ int get_sb_bdev(struct file_system_type *fs_type,
{
struct block_device *bdev;
struct super_block *s;
fmode_t mode = FMODE_READ;
int error = 0;
bdev = open_bdev_excl(dev_name, flags, fs_type);
if (!(flags & MS_RDONLY))
mode |= FMODE_WRITE;
bdev = open_bdev_exclusive(dev_name, mode, fs_type);
if (IS_ERR(bdev))
return PTR_ERR(bdev);
@@ -785,11 +789,12 @@ int get_sb_bdev(struct file_system_type *fs_type,
goto error_bdev;
}
close_bdev_excl(bdev);
close_bdev_exclusive(bdev, mode);
} else {
char b[BDEVNAME_SIZE];
s->s_flags = flags;
s->s_mode = mode;
strlcpy(s->s_id, bdevname(bdev, b), sizeof(s->s_id));
sb_set_blocksize(s, block_size(bdev));
error = fill_super(s, data, flags & MS_SILENT ? 1 : 0);
@@ -807,7 +812,7 @@ int get_sb_bdev(struct file_system_type *fs_type,
error_s:
error = PTR_ERR(s);
error_bdev:
close_bdev_excl(bdev);
close_bdev_exclusive(bdev, mode);
error:
return error;
}
@@ -817,10 +822,11 @@ EXPORT_SYMBOL(get_sb_bdev);
void kill_block_super(struct super_block *sb)
{
struct block_device *bdev = sb->s_bdev;
fmode_t mode = sb->s_mode;
generic_shutdown_super(sb);
sync_blockdev(bdev);
close_bdev_excl(bdev);
close_bdev_exclusive(bdev, mode);
}
EXPORT_SYMBOL(kill_block_super);