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fs/9p: fix error reporting in v9fs_dir_release

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Checking the p9_fid_put value allows us to pass back errors
involved if we end up clunking the fid as part of dir_release.

This can help with more graceful response to errors in writeback
among other things.

Signed-off-by: Eric Van Hensbergen <ericvh@kernel.org>
Reviewed-by: Dominique Martinet <asmadeus@codewreck.org>
This commit is contained in:
Eric Van Hensbergen 2022-12-18 21:02:24 +00:00
parent 3866584a1c
commit 89c58cb395
No known key found for this signature in database
GPG key ID: 88FFD5FB4A5FFF98
1 changed files with 4 additions and 3 deletions
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7
fs/9p/vfs_dir.c
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@ -197,7 +197,7 @@ static int v9fs_dir_readdir_dotl(struct file *file, struct dir_context *ctx)
/**
* v9fs_dir_release - close a directory
* v9fs_dir_release - called on a close of a file or directory
* @inode: inode of the directory
* @filp: file pointer to a directory
*
@ -209,6 +209,7 @@ int v9fs_dir_release(struct inode *inode, struct file *filp)
struct p9_fid *fid;
__le32 version;
loff_t i_size;
int retval = 0;
fid = filp->private_data;
p9_debug(P9_DEBUG_VFS, "inode: %p filp: %p fid: %d\n",
@ -217,7 +218,7 @@ int v9fs_dir_release(struct inode *inode, struct file *filp)
spin_lock(&inode->i_lock);
hlist_del(&fid->ilist);
spin_unlock(&inode->i_lock);
p9_fid_put(fid);
retval = p9_fid_put(fid);
}
if ((filp->f_mode & FMODE_WRITE)) {
@ -228,7 +229,7 @@ int v9fs_dir_release(struct inode *inode, struct file *filp)
} else {
fscache_unuse_cookie(v9fs_inode_cookie(v9inode), NULL, NULL);
}
return 0;
return retval;
}
const struct file_operations v9fs_dir_operations = {