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Fix reiserfs_file_release()

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a) count file openers correctly; i_count use was completely wrong
b) use new mutex for exclusion between final close/open/truncate,
to protect tailpacking logics.  i_mutex use was wrong and resulted
in deadlocks.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2010-07-04 12:18:57 +04:00
commit 0e4f6a791b
4 changed files with 34 additions and 28 deletions
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4
include/linux/reiserfs_fs_i.h
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@ -25,7 +25,6 @@ typedef enum {
i_link_saved_truncate_mask = 0x0020,
i_has_xattr_dir = 0x0040,
i_data_log = 0x0080,
i_ever_mapped = 0x0100
} reiserfs_inode_flags;
struct reiserfs_inode_info {
@ -53,7 +52,8 @@ struct reiserfs_inode_info {
** flushed */
unsigned int i_trans_id;
struct reiserfs_journal_list *i_jl;
struct mutex i_mmap;
atomic_t openers;
struct mutex tailpack;
#ifdef CONFIG_REISERFS_FS_XATTR
struct rw_semaphore i_xattr_sem;
#endif