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syslog_dev_flush() needs to check if the inode is a mountpoint before calling the flush() method. Noted by David Sidrane.

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This commit is contained in:
Gregory Nutt
2016-06-22 05:57:59 -06:00
parent 35cb2fb87d
commit 82c890db23
3 changed files with 64 additions and 58 deletions
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include/nuttx/fs/fs.h
+46
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@@ -65,6 +65,52 @@
#define __FS_FLAG_EOF (1 << 0) /* EOF detected by a read operation */
#define __FS_FLAG_ERROR (1 << 1) /* Error detected by any operation */
/* Inode i_flag values */
#define FSNODEFLAG_TYPE_MASK 0x00000007 /* Isolates type field */
#define FSNODEFLAG_TYPE_DRIVER 0x00000000 /* Character driver */
#define FSNODEFLAG_TYPE_BLOCK 0x00000001 /* Block driver */
#define FSNODEFLAG_TYPE_MOUNTPT 0x00000002 /* Mount point */
#define FSNODEFLAG_TYPE_SPECIAL 0x00000004 /* Special OS type */
#define FSNODEFLAG_TYPE_NAMEDSEM 0x00000004 /* Named semaphore */
#define FSNODEFLAG_TYPE_MQUEUE 0x00000005 /* Message Queue */
#define FSNODEFLAG_TYPE_SHM 0x00000006 /* Shared memory region */
#define FSNODEFLAG_DELETED 0x00000008 /* Unlinked */
#define INODE_IS_TYPE(i,t) \
(((i)->i_flags & FSNODEFLAG_TYPE_MASK) == (t))
#define INODE_IS_SPECIAL(i) \
(((i)->i_flags & FSNODEFLAG_TYPE_SPECIAL) != 0)
#define INODE_IS_DRIVER(i) INODE_IS_TYPE(i,FSNODEFLAG_TYPE_DRIVER)
#define INODE_IS_BLOCK(i) INODE_IS_TYPE(i,FSNODEFLAG_TYPE_BLOCK)
#define INODE_IS_MOUNTPT(i) INODE_IS_TYPE(i,FSNODEFLAG_TYPE_MOUNTPT)
#define INODE_IS_NAMEDSEM(i) INODE_IS_TYPE(i,FSNODEFLAG_TYPE_NAMEDSEM)
#define INODE_IS_MQUEUE(i) INODE_IS_TYPE(i,FSNODEFLAG_TYPE_MQUEUE)
#define INODE_IS_SHM(i) INODE_IS_TYPE(i,FSNODEFLAG_TYPE_SHM)
#define INODE_GET_TYPE(i) ((i)->i_flags & FSNODEFLAG_TYPE_MASK)
#define INODE_SET_TYPE(i,t) \
do \
{ \
(i)->i_flags = ((i)->i_flags & ~FSNODEFLAG_TYPE_MASK) | (t); \
} \
while (0)
#define INODE_SET_DRIVER(i) INODE_SET_TYPE(i,FSNODEFLAG_TYPE_DRIVER)
#define INODE_SET_BLOCK(i) INODE_SET_TYPE(i,FSNODEFLAG_TYPE_BLOCK)
#define INODE_SET_MOUNTPT(i) INODE_SET_TYPE(i,FSNODEFLAG_TYPE_MOUNTPT)
#define INODE_SET_NAMEDSEM(i) INODE_SET_TYPE(i,FSNODEFLAG_TYPE_NAMEDSEM)
#define INODE_SET_MQUEUE(i) INODE_SET_TYPE(i,FSNODEFLAG_TYPE_MQUEUE)
#define INODE_SET_SHM(i) INODE_SET_TYPE(i,FSNODEFLAG_TYPE_SHM)
/* Mountpoint fd_flags values */
#define DIRENTFLAGS_PSEUDONODE 1
#define DIRENT_SETPSEUDONODE(f) do (f) |= DIRENTFLAGS_PSEUDONODE; while (0)
#define DIRENT_ISPSEUDONODE(f) (((f) & DIRENTFLAGS_PSEUDONODE) != 0)
/****************************************************************************
* Public Type Definitions
****************************************************************************/