Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:fs\super.c Create Date:2022-07-28 20:02:32
Last Modify:2022-05-24 06:42:17 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:thaw_super_locked

Proto:static int thaw_super_locked(struct super_block *sb)

Type:int

Parameter:

TypeParameterName
struct super_block *sb
1833  If frozen != SB_FREEZE_COMPLETE Then
1834  lease a write lock
1835  Return -EINVAL
1838  If sb_rdonly(sb) Then
1839  frozen = SB_UNFROZEN
1840  Go to out
1843  Tell lockdep we are holding these locks before we call ->unfreeze_fs(sb).
1845  If unfreeze_fs Then
1846  error = unfreeze_fs(sb)
1847  If error Then
1848  printk - print a kernel message*@fmt: format string* This is printk(). It can be called from any context. We want it to work.* We try to grab the console_lock. If we succeed, it's easy - we log the* output and call the console drivers
1850  We are going to return to userspace and forget about these locks, the* ownership goes to the caller of thaw_super() which does unlock().
1851  lease a write lock
1852  Return error
1856  frozen = SB_UNFROZEN
1857  sb_freeze_unlock(sb)
1858  out :
1859  wake_up( & wait_unfrozen)
1860  deactivate_locked_super - drop an active reference to superblock*@s: superblock to deactivate* Drops an active reference to superblock, converting it into a temporary* one if there is no other active references left
1861  Return 0
Caller
NameDescribe
do_thaw_all_callback
thaw_super