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| author | Marcin Slusarz <marcin.slusarz@gmail.com> | 2008-12-02 13:40:11 +0100 |
|---|---|---|
| committer | Jan Kara <jack@suse.cz> | 2009-04-02 12:29:52 +0200 |
| commit | 87bc730c07a0884d14d6af5c9d49f4669c0a0589 (patch) | |
| tree | aae3f3b6286526e16ee9614923d227612affe51e | |
| parent | e650b94addfbf072952df762e6f1c6c9e26c4f9c (diff) | |
| download | linux-87bc730c07a0884d14d6af5c9d49f4669c0a0589.tar.gz linux-87bc730c07a0884d14d6af5c9d49f4669c0a0589.tar.bz2 linux-87bc730c07a0884d14d6af5c9d49f4669c0a0589.zip | |
udf: fix default mode and dmode options handling
On x86 (and several other archs) mode_t is defined as "unsigned short"
and comparing unsigned shorts to negative ints is broken (because short
is promoted to int and then compared). Fix it.
Reported-and-tested-by: Laurent Riffard <laurent.riffard@free.fr>
Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
| -rw-r--r-- | fs/udf/inode.c | 4 | ||||
| -rw-r--r-- | fs/udf/super.c | 8 | ||||
| -rw-r--r-- | fs/udf/udf_sb.h | 2 |
3 files changed, 8 insertions, 6 deletions
diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 1456d238f8f8..e7533f785636 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -1223,10 +1223,10 @@ static void udf_fill_inode(struct inode *inode, struct buffer_head *bh) iinfo->i_lenExtents = inode->i_size; if (fe->icbTag.fileType != ICBTAG_FILE_TYPE_DIRECTORY && - sbi->s_fmode != -1) + sbi->s_fmode != UDF_INVALID_MODE) inode->i_mode = sbi->s_fmode; else if (fe->icbTag.fileType == ICBTAG_FILE_TYPE_DIRECTORY && - sbi->s_dmode != -1) + sbi->s_dmode != UDF_INVALID_MODE) inode->i_mode = sbi->s_dmode; else inode->i_mode = udf_convert_permissions(fe); diff --git a/fs/udf/super.c b/fs/udf/super.c index 0368bf60f42b..b9dc6adfdd2d 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -284,9 +284,9 @@ static int udf_show_options(struct seq_file *seq, struct vfsmount *mnt) seq_printf(seq, ",gid=%u", sbi->s_gid); if (sbi->s_umask != 0) seq_printf(seq, ",umask=%o", sbi->s_umask); - if (sbi->s_fmode != -1) + if (sbi->s_fmode != UDF_INVALID_MODE) seq_printf(seq, ",mode=%o", sbi->s_fmode); - if (sbi->s_dmode != -1) + if (sbi->s_dmode != UDF_INVALID_MODE) seq_printf(seq, ",dmode=%o", sbi->s_dmode); if (UDF_QUERY_FLAG(sb, UDF_FLAG_SESSION_SET)) seq_printf(seq, ",session=%u", sbi->s_session); @@ -1892,8 +1892,8 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent) uopt.uid = -1; uopt.gid = -1; uopt.umask = 0; - uopt.fmode = -1; - uopt.dmode = -1; + uopt.fmode = UDF_INVALID_MODE; + uopt.dmode = UDF_INVALID_MODE; sbi = kzalloc(sizeof(struct udf_sb_info), GFP_KERNEL); if (!sbi) diff --git a/fs/udf/udf_sb.h b/fs/udf/udf_sb.h index 5d32c609fceb..158221ecdc42 100644 --- a/fs/udf/udf_sb.h +++ b/fs/udf/udf_sb.h @@ -48,6 +48,8 @@ #define UDF_SPARABLE_MAP15 0x1522U #define UDF_METADATA_MAP25 0x2511U +#define UDF_INVALID_MODE ((mode_t)-1) + #pragma pack(1) /* XXX(hch): Why? This file just defines in-core structures */ struct udf_meta_data { |