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-rw-r--r--include/linux/fs.h113
1 files changed, 29 insertions, 84 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index e019ea2f1347..ae97d87a00d2 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -179,14 +179,6 @@ typedef int (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
#define FMODE_BUF_RASYNC ((__force fmode_t)0x40000000)
/*
- * Flag for rw_copy_check_uvector and compat_rw_copy_check_uvector
- * that indicates that they should check the contents of the iovec are
- * valid, but not check the memory that the iovec elements
- * points too.
- */
-#define CHECK_IOVEC_ONLY -1
-
-/*
* Attribute flags. These should be or-ed together to figure out what
* has been changed!
*/
@@ -310,17 +302,20 @@ enum rw_hint {
WRITE_LIFE_EXTREME = RWH_WRITE_LIFE_EXTREME,
};
-#define IOCB_EVENTFD (1 << 0)
-#define IOCB_APPEND (1 << 1)
-#define IOCB_DIRECT (1 << 2)
-#define IOCB_HIPRI (1 << 3)
-#define IOCB_DSYNC (1 << 4)
-#define IOCB_SYNC (1 << 5)
-#define IOCB_WRITE (1 << 6)
-#define IOCB_NOWAIT (1 << 7)
+/* Match RWF_* bits to IOCB bits */
+#define IOCB_HIPRI (__force int) RWF_HIPRI
+#define IOCB_DSYNC (__force int) RWF_DSYNC
+#define IOCB_SYNC (__force int) RWF_SYNC
+#define IOCB_NOWAIT (__force int) RWF_NOWAIT
+#define IOCB_APPEND (__force int) RWF_APPEND
+
+/* non-RWF related bits - start at 16 */
+#define IOCB_EVENTFD (1 << 16)
+#define IOCB_DIRECT (1 << 17)
+#define IOCB_WRITE (1 << 18)
/* iocb->ki_waitq is valid */
-#define IOCB_WAITQ (1 << 8)
-#define IOCB_NOIO (1 << 9)
+#define IOCB_WAITQ (1 << 19)
+#define IOCB_NOIO (1 << 20)
struct kiocb {
struct file *ki_filp;
@@ -1385,7 +1380,7 @@ extern int send_sigurg(struct fown_struct *fown);
#define SB_I_CGROUPWB 0x00000001 /* cgroup-aware writeback enabled */
#define SB_I_NOEXEC 0x00000002 /* Ignore executables on this fs */
#define SB_I_NODEV 0x00000004 /* Ignore devices on this fs */
-#define SB_I_MULTIROOT 0x00000008 /* Multiple roots to the dentry tree */
+#define SB_I_STABLE_WRITES 0x00000008 /* don't modify blks until WB is done */
/* sb->s_iflags to limit user namespace mounts */
#define SB_I_USERNS_VISIBLE 0x00000010 /* fstype already mounted */
@@ -1887,11 +1882,6 @@ static inline int call_mmap(struct file *file, struct vm_area_struct *vma)
return file->f_op->mmap(file, vma);
}
-ssize_t rw_copy_check_uvector(int type, const struct iovec __user * uvector,
- unsigned long nr_segs, unsigned long fast_segs,
- struct iovec *fast_pointer,
- struct iovec **ret_pointer);
-
extern ssize_t vfs_read(struct file *, char __user *, size_t, loff_t *);
extern ssize_t vfs_write(struct file *, const char __user *, size_t, loff_t *);
extern ssize_t vfs_readv(struct file *, const struct iovec __user *,
@@ -2132,6 +2122,10 @@ static inline void kiocb_clone(struct kiocb *kiocb, struct kiocb *kiocb_src,
*
* I_DONTCACHE Evict inode as soon as it is not used anymore.
*
+ * I_SYNC_QUEUED Inode is queued in b_io or b_more_io writeback lists.
+ * Used to detect that mark_inode_dirty() should not move
+ * inode between dirty lists.
+ *
* Q: What is the difference between I_WILL_FREE and I_FREEING?
*/
#define I_DIRTY_SYNC (1 << 0)
@@ -2149,12 +2143,11 @@ static inline void kiocb_clone(struct kiocb *kiocb, struct kiocb *kiocb_src,
#define I_DIO_WAKEUP (1 << __I_DIO_WAKEUP)
#define I_LINKABLE (1 << 10)
#define I_DIRTY_TIME (1 << 11)
-#define __I_DIRTY_TIME_EXPIRED 12
-#define I_DIRTY_TIME_EXPIRED (1 << __I_DIRTY_TIME_EXPIRED)
#define I_WB_SWITCH (1 << 13)
#define I_OVL_INUSE (1 << 14)
#define I_CREATING (1 << 15)
#define I_DONTCACHE (1 << 16)
+#define I_SYNC_QUEUED (1 << 17)
#define I_DIRTY_INODE (I_DIRTY_SYNC | I_DIRTY_DATASYNC)
#define I_DIRTY (I_DIRTY_INODE | I_DIRTY_PAGES)
@@ -2588,6 +2581,10 @@ extern bool is_bad_inode(struct inode *);
unsigned long invalidate_mapping_pages(struct address_space *mapping,
pgoff_t start, pgoff_t end);
+void invalidate_mapping_pagevec(struct address_space *mapping,
+ pgoff_t start, pgoff_t end,
+ unsigned long *nr_pagevec);
+
static inline void invalidate_remote_inode(struct inode *inode)
{
if (S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
@@ -2855,45 +2852,6 @@ static inline void i_readcount_inc(struct inode *inode)
#endif
extern int do_pipe_flags(int *, int);
-#define __kernel_read_file_id(id) \
- id(UNKNOWN, unknown) \
- id(FIRMWARE, firmware) \
- id(FIRMWARE_PREALLOC_BUFFER, firmware) \
- id(FIRMWARE_EFI_EMBEDDED, firmware) \
- id(MODULE, kernel-module) \
- id(KEXEC_IMAGE, kexec-image) \
- id(KEXEC_INITRAMFS, kexec-initramfs) \
- id(POLICY, security-policy) \
- id(X509_CERTIFICATE, x509-certificate) \
- id(MAX_ID, )
-
-#define __fid_enumify(ENUM, dummy) READING_ ## ENUM,
-#define __fid_stringify(dummy, str) #str,
-
-enum kernel_read_file_id {
- __kernel_read_file_id(__fid_enumify)
-};
-
-static const char * const kernel_read_file_str[] = {
- __kernel_read_file_id(__fid_stringify)
-};
-
-static inline const char *kernel_read_file_id_str(enum kernel_read_file_id id)
-{
- if ((unsigned)id >= READING_MAX_ID)
- return kernel_read_file_str[READING_UNKNOWN];
-
- return kernel_read_file_str[id];
-}
-
-extern int kernel_read_file(struct file *, void **, loff_t *, loff_t,
- enum kernel_read_file_id);
-extern int kernel_read_file_from_path(const char *, void **, loff_t *, loff_t,
- enum kernel_read_file_id);
-extern int kernel_read_file_from_path_initns(const char *, void **, loff_t *, loff_t,
- enum kernel_read_file_id);
-extern int kernel_read_file_from_fd(int, void **, loff_t *, loff_t,
- enum kernel_read_file_id);
extern ssize_t kernel_read(struct file *, void *, size_t, loff_t *);
ssize_t __kernel_read(struct file *file, void *buf, size_t count, loff_t *pos);
extern ssize_t kernel_write(struct file *, const void *, size_t, loff_t *);
@@ -3076,8 +3034,6 @@ enum {
DIO_SKIP_HOLES = 0x02,
};
-void dio_end_io(struct bio *bio);
-
ssize_t __blockdev_direct_IO(struct kiocb *iocb, struct inode *inode,
struct block_device *bdev, struct iov_iter *iter,
get_block_t get_block,
@@ -3314,6 +3270,9 @@ static inline int kiocb_set_rw_flags(struct kiocb *ki, rwf_t flags)
{
int kiocb_flags = 0;
+ /* make sure there's no overlap between RWF and private IOCB flags */
+ BUILD_BUG_ON((__force int) RWF_SUPPORTED & IOCB_EVENTFD);
+
if (!flags)
return 0;
if (unlikely(flags & ~RWF_SUPPORTED))
@@ -3322,16 +3281,11 @@ static inline int kiocb_set_rw_flags(struct kiocb *ki, rwf_t flags)
if (flags & RWF_NOWAIT) {
if (!(ki->ki_filp->f_mode & FMODE_NOWAIT))
return -EOPNOTSUPP;
- kiocb_flags |= IOCB_NOWAIT | IOCB_NOIO;
+ kiocb_flags |= IOCB_NOIO;
}
- if (flags & RWF_HIPRI)
- kiocb_flags |= IOCB_HIPRI;
- if (flags & RWF_DSYNC)
- kiocb_flags |= IOCB_DSYNC;
+ kiocb_flags |= (__force int) (flags & RWF_SUPPORTED);
if (flags & RWF_SYNC)
- kiocb_flags |= (IOCB_DSYNC | IOCB_SYNC);
- if (flags & RWF_APPEND)
- kiocb_flags |= IOCB_APPEND;
+ kiocb_flags |= IOCB_DSYNC;
ki->ki_flags |= kiocb_flags;
return 0;
@@ -3511,15 +3465,6 @@ extern int vfs_fadvise(struct file *file, loff_t offset, loff_t len,
extern int generic_fadvise(struct file *file, loff_t offset, loff_t len,
int advice);
-#if defined(CONFIG_IO_URING)
-extern struct sock *io_uring_get_socket(struct file *file);
-#else
-static inline struct sock *io_uring_get_socket(struct file *file)
-{
- return NULL;
-}
-#endif
-
int vfs_ioc_setflags_prepare(struct inode *inode, unsigned int oldflags,
unsigned int flags);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.