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f5b8911b67
It's a buggy, unnecessary wrapper that is duplicating truncate_pagecache_range(). When replacing the call in xfs_change_file_space(), also ensure that the length being allocated/freed is always positive before making any changes. These checks are done in the lower extent manipulation functions, too, but we need to do them before any page cache operations. Reported-by: Andrew Dahl <adahl@sgi.com> Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-By: Andrew Dahl <adahl@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
61 lines
2.7 KiB
C
61 lines
2.7 KiB
C
#ifndef _XFS_VNODEOPS_H
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#define _XFS_VNODEOPS_H 1
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struct attrlist_cursor_kern;
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struct file;
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struct iattr;
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struct inode;
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struct iovec;
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struct kiocb;
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struct pipe_inode_info;
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struct uio;
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struct xfs_inode;
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int xfs_setattr_nonsize(struct xfs_inode *ip, struct iattr *vap, int flags);
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int xfs_setattr_size(struct xfs_inode *ip, struct iattr *vap, int flags);
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#define XFS_ATTR_DMI 0x01 /* invocation from a DMI function */
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#define XFS_ATTR_NONBLOCK 0x02 /* return EAGAIN if operation would block */
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#define XFS_ATTR_NOLOCK 0x04 /* Don't grab any conflicting locks */
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#define XFS_ATTR_NOACL 0x08 /* Don't call xfs_acl_chmod */
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#define XFS_ATTR_SYNC 0x10 /* synchronous operation required */
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int xfs_readlink(struct xfs_inode *ip, char *link);
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int xfs_release(struct xfs_inode *ip);
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int xfs_inactive(struct xfs_inode *ip);
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int xfs_lookup(struct xfs_inode *dp, struct xfs_name *name,
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struct xfs_inode **ipp, struct xfs_name *ci_name);
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int xfs_create(struct xfs_inode *dp, struct xfs_name *name, umode_t mode,
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xfs_dev_t rdev, struct xfs_inode **ipp);
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int xfs_remove(struct xfs_inode *dp, struct xfs_name *name,
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struct xfs_inode *ip);
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int xfs_link(struct xfs_inode *tdp, struct xfs_inode *sip,
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struct xfs_name *target_name);
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int xfs_readdir(struct xfs_inode *dp, void *dirent, size_t bufsize,
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xfs_off_t *offset, filldir_t filldir);
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int xfs_symlink(struct xfs_inode *dp, struct xfs_name *link_name,
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const char *target_path, umode_t mode, struct xfs_inode **ipp);
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int xfs_set_dmattrs(struct xfs_inode *ip, u_int evmask, u_int16_t state);
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int xfs_change_file_space(struct xfs_inode *ip, int cmd,
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xfs_flock64_t *bf, xfs_off_t offset, int attr_flags);
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int xfs_rename(struct xfs_inode *src_dp, struct xfs_name *src_name,
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struct xfs_inode *src_ip, struct xfs_inode *target_dp,
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struct xfs_name *target_name, struct xfs_inode *target_ip);
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int xfs_attr_get(struct xfs_inode *ip, const unsigned char *name,
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unsigned char *value, int *valuelenp, int flags);
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int xfs_attr_set(struct xfs_inode *dp, const unsigned char *name,
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unsigned char *value, int valuelen, int flags);
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int xfs_attr_remove(struct xfs_inode *dp, const unsigned char *name, int flags);
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int xfs_attr_list(struct xfs_inode *dp, char *buffer, int bufsize,
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int flags, struct attrlist_cursor_kern *cursor);
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int xfs_flushinval_pages(struct xfs_inode *ip, xfs_off_t first,
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xfs_off_t last, int fiopt);
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int xfs_flush_pages(struct xfs_inode *ip, xfs_off_t first,
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xfs_off_t last, uint64_t flags, int fiopt);
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int xfs_wait_on_pages(struct xfs_inode *ip, xfs_off_t first, xfs_off_t last);
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int xfs_zero_eof(struct xfs_inode *, xfs_off_t, xfs_fsize_t);
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int xfs_free_eofblocks(struct xfs_mount *, struct xfs_inode *, bool);
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#endif /* _XFS_VNODEOPS_H */
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