Commits · 32301920f44a9334f57dd94bebfc6e593b99ad47 · nexedi / linux

04 Jan, 2012 40 commits

vfs: and now we can make ->mnt_master point to struct mount · 32301920
Al Viro authored Nov 25, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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32301920

vfs: take mnt_master to struct mount · d10e8def

Al Viro authored Nov 25, 2011

make IS_MNT_SLAVE take struct mount * at the same time
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

d10e8def

vfs: spread struct mount - remaining argument of mnt_set_mountpoint() · 14cf1fa8
Al Viro authored Nov 25, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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14cf1fa8
vfs: spread struct mount - propagate_mnt() · a8d56d8e
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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a8d56d8e
vfs: spread struct mount - shared subtree iterators · c937135d
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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c937135d

vfs: spread struct mount - get_dominating_id / do_make_slave · 6fc7871f

Al Viro authored Nov 24, 2011

next pile of horrors, similar to mnt_parent one; this time it's
mnt_master.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

6fc7871f

vfs: take mnt_child/mnt_mounts to struct mount · 6b41d536
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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6b41d536
vfs: all counters taken to struct mount · 68e8a9fe
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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68e8a9fe
vfs: spread struct mount - work with counters · 83adc753
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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83adc753
vfs: move mnt_mountpoint to struct mount · a73324da
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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a73324da
vfs: now it can be done - make mnt_parent point to struct mount · 0714a533
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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0714a533
vfs: mnt_parent moved to struct mount · 3376f34f
Al Viro authored Nov 24, 2011
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the second victim...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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3376f34f
vfs: spread struct mount - is_path_reachable · 643822b4
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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643822b4
vfs: spread struct mount - mnt_has_parent · 676da58d
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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676da58d
vfs: spread struct mount - do_umount/propagate_mount_busy · 1ab59738
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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1ab59738
vfs: spread struct mount mnt_set_mountpoint child argument · 44d964d6
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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44d964d6
vfs: spread struct mount - clone_mnt/copy_tree argument · 87129cc0
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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87129cc0
vfs: spread struct mount - shrink_submounts/select_submounts · 692afc31
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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692afc31
vfs: spread struct mount - umount_tree argument · 761d5c38
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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761d5c38

vfs: the first spoils - mnt_hash moved · 1b8e5564

Al Viro authored Nov 24, 2011

taken out of struct vfsmount into struct mount
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1b8e5564

vfs: spread struct mount to remaining users of ->mnt_hash · d5e50f74
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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d5e50f74
vfs: spread struct mount - clone_mnt/copy_tree result · cb338d06
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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cb338d06
vfs: spread struct mount - change_mnt_propagation/set_mnt_shared · 0f0afb1d
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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0f0afb1d
vfs: spread struct mount - alloc_vfsmnt/free_vfsmnt/mnt_alloc_id/mnt_free_id · b105e270
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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b105e270
vfs: spread struct mount - tree_contains_unbindable · cbbe362c
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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cbbe362c
vfs: spread struct mount - attach_recursive_mnt · 0fb54e50
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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0fb54e50
vfs: spread struct mount - mount group id handling · 4b8b21f4
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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4b8b21f4
vfs: spread struct mount - commit_tree · 4b2619a5
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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4b2619a5
vfs: spread struct mount - attach_mnt/detach_mnt · 419148da
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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419148da

vfs: spread struct mount - namespace.c internal iterators · 315fc83e

Al Viro authored Nov 24, 2011

next_mnt() return value, first argument
skip_mnt_tree() return value and argument
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

315fc83e

vfs: spread struct mount - __propagate_umount() argument · 61ef47b1
Al Viro authored Nov 24, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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61ef47b1

vfs: spread struct mount - __lookup_mnt() result · c7105365

Al Viro authored Nov 24, 2011

switch __lookup_mnt() to returning struct mount *; callers adjusted.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

c7105365

vfs: start hiding vfsmount guts series · 7d6fec45

Al Viro authored Nov 23, 2011

Almost all fields of struct vfsmount are used only by core VFS (and
a fairly small part of it, at that).  The plan: embed struct vfsmount
into struct mount, making the latter visible only to core parts of VFS.
Then move fields from vfsmount to mount, eventually leaving only
mnt_root/mnt_sb/mnt_flags in struct vfsmount.  Filesystem code still
gets pointers to struct vfsmount and remains unchanged; all such
pointers go to struct vfsmount embedded into the instances of struct
mount allocated by fs/namespace.c.  When fs/namespace.c et.al. get
a pointer to vfsmount, they turn it into pointer to mount (using
container_of) and work with that.

This is the first part of series; struct mount is introduced,
allocation switched to using it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

7d6fec45

vfs: fix the rest of sget() races · dabe0dc1

Al Viro authored Jan 03, 2012

unfortunately, just checking MS_BORN after having grabbed ->s_umount in
sget() is not enough; places that pick superblock from a list and
grab s_umount shared need the same check in addition to checking for
->s_root; otherwise three-way race between failing mount, sget() and
such list-walker can leave us with list-walker coming *second*, when
temporary active ref grabbed by sget() (to be dropped when sget()
notices that original mount has failed by checking MS_BORN) has
lead to deactivate_locked_super() from failing ->mount() *not* doing
->kill_sb() and just releasing ->s_umount.  Once sget() gets through
and notices that MS_BORN had never been set it will drop the active
ref and fs will be shut down and kicked out of all lists, but it's
too late for something like sync_supers().
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

dabe0dc1

vfs: new helper - vfs_ustat() · cf31e70d

Al Viro authored Jan 02, 2012

... and bury user_get_super()/statfs_by_dentry() - they are
purely internal now.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

cf31e70d

vfs: live vfsmounts never have NULL ->mnt_sb · c972b4bc
Al Viro authored Dec 08, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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c972b4bc
vfs: for usbfs, etc. internal vfsmounts ->mnt_sb->s_root == ->mnt_root · 4c1d5a64
Al Viro authored Dec 07, 2011
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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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4c1d5a64

get rid of timer in kern/acct.c · 32dc7308

Al Viro authored Dec 08, 2011

... and clean it up a bit, while we are at it
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

32dc7308

vfs: pipe.c is really non-modular · 84b92d39

Al Viro authored Dec 18, 2011

... so no exitcalls there.  Not much would work if pipe(2) would stop
working, after all...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

84b92d39

vfs: fix the stupidity with i_dentry in inode destructors · 6b520e05

Al Viro authored Dec 12, 2011

Seeing that just about every destructor got that INIT_LIST_HEAD() copied into
it, there is no point whatsoever keeping this INIT_LIST_HEAD in inode_init_once();
the cost of taking it into inode_init_always() will be negligible for pipes
and sockets and negative for everything else. Not to mention the removal of
boilerplate code from ->destroy_inode() instances...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

6b520e05