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Almost forgot these last few unimportant files...

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Tonoxis
2021-04-04 16:25:28 -04:00
parent b6d5d2143c
commit 4f3981d33b
3 changed files with 17 additions and 0 deletions
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2
Documentation/filesystems/Locking
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@@ -62,6 +62,7 @@ ata *);
int (*removexattr) (struct dentry *, const char *); int (*removexattr) (struct dentry *, const char *);
void (*truncate_range)(struct inode *, loff_t, loff_t); void (*truncate_range)(struct inode *, loff_t, loff_t);
int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, u64 len); int (*fiemap)(struct inode *, struct fiemap_extent_info *, u64 start, u64 len);
struct file *(*open)(struct dentry *,struct file *,const struct cred *);
locking rules: locking rules:
all may block all may block
@@ -89,6 +90,7 @@ listxattr: no
removexattr: yes removexattr: yes
truncate_range: yes truncate_range: yes
fiemap: no fiemap: no
open: no
Additionally, ->rmdir(), ->unlink() and ->rename() have ->i_mutex on Additionally, ->rmdir(), ->unlink() and ->rename() have ->i_mutex on
victim. victim.
cross-directory ->rename() has (per-superblock) ->s_vfs_rename_sem. cross-directory ->rename() has (per-superblock) ->s_vfs_rename_sem.

8
Documentation/filesystems/vfs.txt
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@@ -364,6 +364,8 @@ struct inode_operations {
ssize_t (*listxattr) (struct dentry *, char *, size_t); ssize_t (*listxattr) (struct dentry *, char *, size_t);
int (*removexattr) (struct dentry *, const char *); int (*removexattr) (struct dentry *, const char *);
void (*truncate_range)(struct inode *, loff_t, loff_t); void (*truncate_range)(struct inode *, loff_t, loff_t);
struct file *(*open) (struct dentry *, struct file *,
const struct cred *);
}; };
Again, all methods are called without any locks being held, unless Again, all methods are called without any locks being held, unless
@@ -475,6 +477,12 @@ otherwise noted.
truncate_range: a method provided by the underlying filesystem to truncate a truncate_range: a method provided by the underlying filesystem to truncate a
range of blocks , i.e. punch a hole somewhere in a file. range of blocks , i.e. punch a hole somewhere in a file.
open: this is an alternative to f_op->open(), the difference is that this
method may return any open file, not necessarily originating from the
same filesystem as the one i_op->open() was called on. It may be useful
for stacking filesystems which want to allow native I/O directly on
underlying files.
The Address Space Object The Address Space Object
======================== ========================

7
MAINTAINERS
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@@ -4998,6 +4998,13 @@ F: drivers/scsi/osd/
F: include/scsi/osd_* F: include/scsi/osd_*
F: fs/exofs/ F: fs/exofs/
OVERLAYFS FILESYSTEM
M: Miklos Szeredi <miklos@szeredi.hu>
L: linux-fsdevel@vger.kernel.org
S: Supported
F: fs/overlayfs/*
F: Documentation/filesystems/overlayfs.txt
P54 WIRELESS DRIVER P54 WIRELESS DRIVER
M: Christian Lamparter <chunkeey@googlemail.com> M: Christian Lamparter <chunkeey@googlemail.com>
L: linux-wireless@vger.kernel.org L: linux-wireless@vger.kernel.org